An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA).
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
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The enrichment of a terrestrial or aquatic ECOSYSTEM by the addition of nutrients, especially nitrogen and phosphorus, that results in a superabundant growth of plants, ALGAE, or other primary producers. It can be a natural process or result from human activity such as agriculture runoff or sewage pollution. In aquatic ecosystems, an increase in the algae population is termed an algal bloom.
HMG1 proteins from evolutionary distant organisms distort B-DNA conformation in similar way. (1/233)The abundant high-mobility group proteins 1/2 (HMG1/2) represent a group of potent architectural elements of chromatin. They are able to induce strong bends and untwist DNA. Here, we compared the abilities of diverse HMG1 proteins to distort the B-DNA conformation of 30-base pair DNA fragment. The DNA bending was measured in solution by monitoring fluorescence resonance energy transfer between fluorescence probes attached to opposite ends of the DNA fragment. Various insect and plant proteins which differ in size, in composition of their HMG1-box domains (HMG1-BD), and in composition of the N- and the C-terminally flanking regions were analyzed in these experiments. Despite these structural differences the extent of the induced changes in DNA conformation upon binding to various proteins was similar, as the estimated bend angle was 150+/-20 degrees for all the tested proteins. Our results suggest that a set of highly conserved residues stabilizing the tertiary structure of the HMG1-BD mainly determines the extent of DNA bending in the complex. Even extended positively charged regions flanking the HMG1-BD are apparently not able to influence this conformational distortion of DNA. (+info)
Identification of Chironomus kiiensis allergens, a dominant species of non-biting midges in Korea. (2/233)Non-biting midges are known to contain potent inhalant allergens. IgE antibody responses to the crude extract of Chironomus kiiensis adults, a dominant chironomid species in Korea, were examined. With the IgE-ELISA or passive cutaneous anaphylaxis reactions, increased levels of chironomid-specific IgE were detected in the skin test positive human sera, or immunized BALB/c mouse sera with the crude extract adsorbed to alum. IgE-immunoblot analysis showed major IgE-reacting protein band patterns, which reacted with more than 50% of the skin test positive human sera, at 110, 80, 73, 46, 40, 37, 34, and 31 kDa. The reactive band patterns were largely similar between skin test positive humans and immune BALB/c mice. However, the bands of 55, 31, 27, 26, 24, and 23 kDa were found only in sensitized humans, but not in immunized mice. (+info)
Electron tomography reveals posttranscriptional binding of pre-mRNPs to specific fibers in the nucleoplasm. (3/233)Using electron tomography, we have analyzed whether the Balbiani ring (BR) pre-mRNP particles in transit from the gene to the nuclear pore complex (NPC) are bound to any structure that could impair free diffusion through the nucleoplasm. We show that one-third of the BR particles are in contact with thin connecting fibers (CFs), which in some cases merge into large fibrogranular clusters. The CFs have a specific protein composition different from that of BR particles, as shown by immuno-EM. Moreover, we have identified hrp65 as one of the protein components of the CFs. The sequencing of hrp65 cDNA reveals similarities with hnRNP proteins and splicing factors. However, hrp65 is likely to have a different function because it does not bind to nascent pre-mRNA and is not part of the pre-mRNP itself. Taken together, our observations indicate that pre-mRNPs are not always freely diffusible in the nucleoplasm but interact with fibers of specific structure and composition, which implies that some of the posttranscriptional events that the pre-mRNPs undergo before reaching the NPC occur in a bound state. (+info)
The Ct-RAE1 protein interacts with Balbiani ring RNP particles at the nuclear pore. (4/233)RAE1 is an evolutionarily conserved protein that associates with both mRNPs and nucleoporins, and may bridge the interaction between mRNP export cargoes and the nuclear pore complex (NPC). However, the mechanism by which RAE1 functions in mRNA export is still unknown and the time point at which RAE1 interacts with the exported RNP has not been directly investigated. Here we have addressed this question in the Balbiani ring (BR) system of Chironomus tentans using immunoelectron microscopy. The RAE1 protein of C. tentans, Ct-RAE1, is 70% identical to human RAE1/mrnp41 (hRAE1) and is recognized by antibodies raised against hRAE1. As in vertebrate cells, Ct-RAE1 is concentrated at the nuclear envelope and also dispersed throughout the nuclear interior. Here we show that Ct-RAE1 does not bind to the BR particle either cotranscriptionally or in the nucleoplasm. Instead, the interaction between Ct-RAE1 and the exported BR particle occurs at the NPC. Moreover, the localization of Ct-RAE1 at the NPC is correlated with the presence of an exported RNP in the NPC. Finally, the anti-RAE1 antibody does not label the cytoplasmic side of BR particles in transit through the central channel, which indicates that Ct-RAE1 either remains anchored at the nuclear side of the NPC during translocation of the RNP through the central channel or becomes transiently associated with the RNP but is rapidly released into the cytoplasm. (+info)
Actin bound to the heterogeneous nuclear ribonucleoprotein hrp36 is associated with Balbiani ring mRNA from the gene to polysomes. (5/233)In the salivary glands of the dipteran Chironomus tentans, a specific messenger ribonucleoprotein (mRNP) particle, the Balbiani ring (BR) granule, can be visualized during its assembly on the gene and during its nucleocytoplasmic transport. We now show with immunoelectron microscopy that actin becomes associated with the BR particle concomitantly with transcription and is present in the particle in the nucleoplasm. DNase I affinity chromatography experiments with extracts from tissue culture cells indicate that both nuclear and cytoplasmic actin are bound to the heterogeneous RNP (hnRNP) protein hrp36, but not to the hnRNP proteins hrp23 and hrp45. The interaction is likely to be direct as purified actin binds to recombinant hrp36 in vitro. Furthermore, it is demonstrated by cross linking that nuclear as well as cytoplasmic actin are bound to hrp36 in vivo. It is known that hrp36 is added cotranscriptionally along the BR mRNA molecule and accompanies the RNA through the nuclear pores and into polysomes. We conclude that actin is likely to be bound to the BR transcript via hrp36 during the transfer of the mRNA from the gene all the way into polysomes. (+info)
Consecutive steps of phosphorylation affect conformation and DNA binding of the chironomus high mobility group A protein. (6/233)The high mobility group (HMG) proteins of the AT-hook family (HMGA) lie downstream in regulatory networks with protein kinase C, Cdc2 kinase, MAP kinase, and casein kinase 2 (CK2) as final effectors. In the cells of the midge Chironomus, almost all of the HMGA protein (cHMGA) is phosphorylated by CK2 at two adjacent sites. 40% of the protein population is additionally modified by MAP kinase. Using spectroscopic and protein footprinting techniques, we analyzed how individual and consecutive steps of phosphorylation change the conformation of an HMGA protein and affect its contacts with poly(dA-dT).poly(dA-dT) and a fragment of the interferon-beta promoter. We demonstrate that phosphorylation of cHMGA by CK2 alters its conformation and modulates its DNA binding properties such that a subsequent phosphorylation by Cdc2 kinase changes the organization of the protein-DNA complex. In contrast, consecutive phosphorylation by MAP kinase, which results in a dramatic change in cHMGA conformation, has no direct effect on the complex. Because the phosphorylation of the HMGA proteins attenuates binding affinity and reduces the extent of contacts between the DNA and protein, it is likely that this process mirrors the dynamics and diversity of regulatory processes in chromatin. (+info)
In situ transcription and splicing in the Balbiani ring 3 gene. (7/233)The Balbiani ring 3 (BR3) gene contains 38 introns, and more than half of them are co-transcriptionally excised. We have determined the in situ structure of the active BR3 gene by electron tomography. Each of the 20-25 nascent transcripts on the gene is present together with splicing factors and the RNA polymerase II in a nascent transcript and splicing complex, here called the NTS complex. The results indicate that extensive changes in overall shape, substructure and molecular mass take place repeatedly within an NTS complex as it moves along the gene. The volume and calculated mass of the NTS complexes show that, maximally, one complete spliceosome is assembled on the multi-intron transcript at any given time point. The structural data show that the spliceosome is not a structurally well-defined unit in situ and that the C-terminal domain of the elongating RNA polymerase II cannot carry spliceosomal components for all introns in the BR3 transcript. Our data indicate that spliceosomal factors are continuously added to and released from the NTS complexes during transcription elongation. (+info)
Assembly and transport of a premessenger RNP particle. (8/233)Salivary gland cells in the larvae of the dipteran Chironomus tentans offer unique possibilities to visualize the assembly and nucleocytoplasmic transport of a specific transcription product. Each nucleus harbors four giant polytene chromosomes, whose transcription sites are expanded, or puffed. On chromosome IV, there are two puffs of exceptional size, Balbiani ring (BR) 1 and BR 2. A BR gene is 35-40 kb, contains four short introns, and encodes a 1-MDa salivary polypeptide. The BR transcript is packed with proteins into a ribonucleoprotein (RNP) fibril that is folded into a compact ring-like structure. The completed RNP particle is released into the nucleoplasm and transported to the nuclear pore, where the RNP fibril is gradually unfolded and passes through the pore. On the cytoplasmic side, the exiting extended RNP fibril becomes engaged in protein synthesis and the ensuing polysome is anchored to the endoplasmic reticulum. Several of the BR particle proteins have been characterized, and their fate during the assembly and transport of the BR particle has been elucidated. The proteins studied are all added cotranscriptionally to the pre-mRNA molecule. The various proteins behave differently during RNA transport, and the flow pattern of each protein is related to the particular function of the protein. Because the cotranscriptional assembly of the pre-mRNP particle involves proteins functioning in the nucleus as well as proteins functioning in the cytoplasm, it is concluded that the fate of the mRNA molecule is determined to a considerable extent already at the gene level. (+info)
Ecotoxicity of bare and coated silver nanoparticles in the aquatic midge, Chironomus riparius on Environmental XPRT
Article Ecotoxicity of bare and coated silver nanoparticles in the aquatic midge, Chironomus riparius. While sediment is generally considered to be the major sink for nanomaterials in aquatic environments, few studies have addressed the ecotoxicity o...
A nuclear cap-binding complex binds Balbiani ring pre-mRNA cotranscriptionally and accompanies the ribonucleoprotein particle...
In vertebrates, a nuclear cap-binding complex (CBC) formed by two cap- binding proteins, CBP20 and CBP80, is involved in several steps of RNA metabolism, including pre-mRNA splicing and nuclear export of some RNA polymerase II-transcribed U snRNAs. The CBC is highly conserved, and antibodies against human CBP20 cross-react with the CBP20 counterpart in the dipteran Chironomus tentans. Using immunoelectron microscopy, the in situ association of CBP20 with a specific pre-mRNP particle, the Balbiani ring particle, has been analyzed at different stages of pre-mRNA synthesis, maturation, and nucleo-cytoplasmic transport. We demonstrate that CBP20 binds to the nascent pre-mRNA shortly after transcription initiation, stays in the RNP particles after splicing has been completed, and remains attached to the 5 domain during translocation of the RNP through the nuclear pore complex (NPC). The rapid association of CBP20 with nascent RNA transcripts in situ is consistent with the role of CBC in splicing, ...
Diversity and biomass of Chironomidae (Diptera) larvae in an impacted coastal lagoon in Rio de Janeiro, Brazil
CALLISTO, M. et al. Diversity and biomass of Chironomidae (Diptera) larvae in an impacted coastal lagoon in Rio de Janeiro, Brazil. Braz. J. Biol. [online]. 2002, vol.62, n.1, pp.77-84. ISSN 1519-6984. http://dx.doi.org/10.1590/S1519-69842002000100010.. Diversity and biomass of Chironomidae larvae were studied between January-November 1993 and March-November 1994 in an impacted lagoon in Rio de Janeiro, Southeastern Brazil, in an attempt to establish the ecological consequences of anthropogenic eutrophication processes. Nine hundred and seventy-five organisms belonging to the Tanypodinae, Orthocladiinae, and Chironominae were collected. Polypedilum (62%) and Chironomus (58%) were the most common genera found in the limnetic and littoral zones.. Keywords : biodiversity; eutrophication; chironomids; bioindicators; coastal lagoon. ...
Identification of two RNA-binding proteins in Balbiani ring premessenger ribonucleoprotein granules and presence of these...
Balbiani ring (BR) granules are premessenger ribonucleoprotein particles (RNPs) generated in giant chromosomal puffs, the BRs, in the larval salivary glands of the dipteran chironomus tentans. Monoclonal antibodies were raised against nuclear proteins collected on a single-stranded-DNA-agarose affinity column, and two of them were used to identify RNA-binding proteins in BR granules. First, in Western blots (immunoblots), one of the antibodies recognized a 36-kDa protein and the other recognized a 45-KDa protein. Second, both antibodies bound to the BRs in immunocytological experiments. It was shown in cross-linking experiments that the two proteins are associated with heterogeneous nuclear RNP (hnRNP) complexes extracted from C. tentans nuclei. By immunoelectron microscopy of isolated and partly unfolded BR RNPs, it was specifically demonstrated that the BR granules contain the two proteins and, in addition, that both proteins are distributed frequently along the RNP fiber of the particles. ...
Chironomid Larvae Essay
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THE DNA BASE COMPOSITION OF INDIVIDUAL CHROMOSOMES AND CHROMOSOME SEGMENTS FROM CHIRONOMUS TENTANS | JCB
The base composition of DNA was determined for individual chromosomes from the dipteran Chironomus tentans and for each one of six different segments of one of the chromosomes. The isolations were carried out by micromanipulation and the DNA purines were first extracted from the isolated components and afterwards separated by means of microelectrophoresis on a cellulose fiber. It was found that DNA from this material has an unusual composition corresponding to a guanine + cytosine content of about 30%. This composition was not a function of the polytenic condition but was also found for DNA from testis tissue. Furthermore Drosophila has a more traditional base composition for the bulk of DNA. Statistically significant variations in base data were found between whole chromosomes as well as between the segments from one of the chromosomes.. ...
Hemoglobins of Chironomus tentans and C. pallidivittatus: Biochemical and Cytological Studies | Springer for Research &...
Hemoglobin, the respiratory protein of the vertebrates, occurs among the insects only in the larvae of the Chironomides, the non-biting midges. In contrast to the hemoglobin of vertebrates,...
The potential of chironomid larvae-based metrics in the bioassessment of non-wadeable rivers
The chironomid community in non-wadeable lotic systems was tested as a source of information in the construction of biological metrics which could be used into the bioassessment protocols of large rivers. In order to achieve this, we simultaneously patterned the chironomid community structure and environmental factors along the catchment of the Danube and Sava River. The Self organizing map (SOM) recognized and visualized three different structural types of chironomid community for different environmental properties, described by means of 7 significant abiotic factors (a multi-stressor gradient). Indicator species analysis revealed that the chironomid taxa most responsible for structural changes significantly varied in their abundance and frequency along the established environmental gradients. Out of 40 biological metrics based on the chironomid community, the multilayer perceptron (MLP), an supervised type of artificial neural network, derived 5 models in which the abundance of ...
A review of Paratrichocladius Santos Abreu from the Sino-Indian Region (Diptera: Chironomidae: Orthocladiinae) | Zenodo
Fu, Yue, Saether, Ole A., Wang, Xinhua (2012): A review of Paratrichocladius Santos Abreu from the Sino-Indian Region (Diptera: Chironomidae: Orthocladiinae). Zootaxa 3478: 453-482, DOI: 10.5281/zenodo.209364
Fat body: a site of hemoglobin synthesis in Chironomus thummi (diptera). | Journal of Cell Biology | Rockefeller University...
Fourth instar larvae of Chironomus thummi were permitted to incorporate labeled amino acids and/or sigma-aminolevulinic acid (sigma-ALA) in vivo and in organ cu
Chironomidae - Wikipedia
Larval stages of the Chironomidae can be found in almost any aquatic or semiaquatic habitat, including treeholes, bromeliads, rotting vegetation, soil, and in sewage and artificial containers. They form an important fraction of the macro zoobenthos of most freshwater ecosystems. They are often associated with degraded or low-biodiversity ecosystems because some species have adapted to virtually anoxic conditions and are dominant in polluted waters. Larvae of some species are bright red in color due to a hemoglobin analog; these are often known as bloodworms. Their ability to capture oxygen is further increased by their making undulating movements. Many reference sources in the past century or so have repeated the assertion that the Chironomidae do not feed as adults, but an increasing body of evidence contradicts this view. Adults of many species do, in fact, feed. The natural foods reported include fresh fly droppings, nectar, pollen, honeydew, and various sugar-rich materials. The ...
Keys, phylogenies and biogeography of Polypedilum subgenus Uresipedilum Oyewo et Saether (Diptera, Chironomidae)
This dataset contains the digitized treatments in Plazi based on the original journal article Saether, Ole A., Oyewo, Emmanuel Adeoye (2008): Keys, phylogenies and biogeography of Polypedilum subgenus Uresipedilum Oyewo et Saether (Diptera, Chironomidae). Zootaxa 1806: 1-34, DOI: 10.5281/zenodo.182700 ...
Reconstructing recent environmental changes using non-biting midges (Diptera: Chironomidae) in two high mountain lakes from...
Remote lakes of northern Patagonia are ideal sites for examining climate- and non-climate-driven changes in aquatic ecosystems because there is little evidence of human influence and there is no detai
Bloodworm head, SEM - Stock Image C032/3927 - Science Photo Library
Coloured scanning electron micrograph (SEM) of Bloodworm (Chironomus tetans) head. The aquatic larval stage of a midge. Chironomus tetans is nonbiting midge in the bloodworm family Chironomidae. The Chironomidae (also known as chironomids or nonbiting midges) are a family of nematoceran flies with a global distribution. Many species superficially resemble mosquitoes. The Chirononus larvae (called bloodworms) can reach relatively high densities. The bloodworm has an iron-porphyrin protein respiratory pigment (red) in its blood and tissue fluids which corresponds to haemoglobin in vertebrates. Males are easily recognized by their plumose antennae. Larval stages of the Chironomidae can be found in almost any aquatic or semiaquatic habitat including: treeholes, bromeliads, rotting vegetation, soil, and in sewage and artificial containers. The Chironomidae are important as indicator organisms. Magnification: x22 when shortest axis printed at 25 - Stock Image C032/3927
Karyotype characteristics and polymorphism peculiarities of Chironomus bernensis Wülker & Klötzli, 1973 (Diptera, Chironomidae)...
Data about the karyotype characteristics, features of chromosomal polymorphism and larval morphology of populations of Chironomus bernensis Wülker & Klötzli, 1973 (Diptera, Chironomidae) from the Central Caucasus (the northern macroslope) and Ciscaucasia are presented. The characteristics of the pericentromeric regions of the long chromosomes of this species from Caucasian populations were very similar to the ones from some European populations (from Poland and Italy), but differed from Swiss and Siberian populations. In the North Caucasian populations 10 banding sequences were found: two in arms A, C, and E, and one in arms B, D, F, and G. Nine of them were already known for this species, and one, berC2, is described for the first time. Cytogenetic distances between all the studied populations of Ch. bernensis show that close geographical location of all studied populations from the Central Caucasus and Ciscaucasia is reflected in their similar cytogenetic structure, but on the other hand, that
Density and temperature dependent feeding rates in an established and an alien freshwater gammarid fed on chironomid larvae ...
We compared feeding rates of the well-established, non-invasive amphipod Gammarus roeselii with those of the invasive Dikerogammarus villosus at different prey densities and different temperatures in laboratory experiments using chironomid larvae as prey. Feeding rates were very variable in both species but higher in the invader species than in the well-established non-invasive species. These results were age independent. At high temperature (18-20 °C) and high prey density (≥1000 prey m-2) one large adult D. villosus consumed 6-9 prey day-1 on average while one G. roeselii consumed 4-7 prey d-1 and one smaller D. villosus of a length of 8-10 mm consumed 2-5 prey d-1 while one G. roeselii of the same length consumed 3 prey d-1. Predation rate decreased considerably from high (18-20 °C) to low temperature (3±2 °C), from 9 to 4 prey predator-1 d-1 in D. villosus and from 7.5 to 2.5 prey predator-1 d-1 in G. roeselii. We conclude that both gammarids consumed a biomass in the range of 1/2 to ...
Midge Fly Larvae Bloodworms; Non-Biting Midge Larvae; Blind Mosquitoe Larvae | MDC Discover Nature
Midge larvae look something like thin aquatic inchworms. They can be clear, whitish, olive, tan, or bright red. They occur in a variety of aquatic habitats. As adults, they resemble mosquitoes but they never bite.
Notes on predator-prey relationships among Tanypodinae larvae (Diptera, Chironomidae) and mites (Acariformes) in Brazilian...
Chironomidae larvae and mites are abundant and diversified groups that coexist in several environments. However, little importance has been attributed to their ecological relationships (predator-prey, parasitism, etc.). Therefore, the present study aimed to report the predation of mites by Tanypodinae larvae in Neotropical quartzite caves.
Reflected polarization guides chironomid females to oviposition sites | Journal of Experimental Biology
Chironomids (Diptera: Chironomidae; non-biting midges) are distributed worldwide, occupying a range of freshwater habitats such as streams, lakes and ponds. Mating occurs in the air during twilight (Armitage et al., 1995). After mating, the male dies, and the female descends to oviposit on the water surface. The eggs are laid in the form of egg batches (EB), each containing thousands of eggs wrapped in a gelatinous layer. Since the adults do not feed and are short lived, most females lay only once or twice and die soon after. Females usually oviposit in two stages, at the start of the evening and around sunrise. After emerging from the egg, the larva descends to the bottom of the water, where it feeds on the substrate and on suspended matter in the water. Then, 2-3 weeks later, the larva pupates and once the metamorphosis is complete, the pupa swims to the water surface, where the adult emerges into the air and is ready to mate (Pinder, 1986). Mating takes place within a couple of ...
Chironomid Larva Blood Vessels | MicroscopyU
Non-biting midges are one of the most diverse and widespread dipteran groups known. They inhabit virtually the entire range of aquatic ecosystems, both fresh and marine, as well as semi-terrestrial and terrestrial habitats. Most species have aquatic wormlike larval stages that start as egg masses laid on the water surface. After going through a pupal stage, floating at the surface of the water, a full-grown midge emerges and flies away. Larvae of some species build a protective capsule made of secretions and debris that they live in during the stage, emerging only long enough to feed.
Ebook] Acute sensitivity to and biocencentration [i.e. bioconcentration] of copper by Chironomus tentans larvae as affected by...
Acute sensitivity to and biocencentration [i.e. bioconcentration] of copper by Chironomus tentans larvae as affected by changes in water hardness-alkalinity by Joseph D Gauss Download PDF EPUB ...
Karyotypes of Chironomus Meigen (Diptera: Chironomidae) species from Africa
The karyotypes of six African Chironomus species (Ch. alluaudi Kieffer, 1913, Ch. transvaalensis Kieffer, 1923, Ch. sp. Nakuru, Ch. formosipennis Kieffer, 1908, Ch. prope pulcher Wiedemann, 1830, Ch. sp. Kisumu) were investigated; four of these karyotypes were described for the first time (Ch. sp. Nakuru, Ch. formosipennis, Ch. prope pulcher, Ch. sp. Kisumu). Of the six Chironomus karyotypes, three had “pseudothummi” cytocomplex chromosome arms combinations AE CD BF G (Ch. alluaudi, Ch. transvaalensis, Ch. sp. Nakuru), two had “thummi” cytocomplex arms combinations AB CD EF G (Ch. formosipennis, Ch. prope pulcher), and one had “parathummi” arm combinations AC BF DE G (Ch. sp. Kisumu). Thus, three of the ten main cytocomplexes known were detected in Africa. Detailed photomaps of all chromosome arms, with the exception of arms B and G, were prepared for the karyotypes of Ch. alluaudi, Ch. transvaalensis, Ch. sp. Nakuru, Ch. prope pulcher; the karyotypes of Ch.
Chironomidae (Midges) True Fly Larva Pictures
2 close-up macro pictures of a Chironomidae (Midges) True Fly Larva, collected from Cascadilla Creek in New York on March 13, 2005.
Chironomidae (Diptera) community structure in two subsystems with different states of conservation in a floodplain of southern...
Acta Limnologica Brasiliensia, 2010, vol. 22, no. 3, p Chironomidae (Diptera) community structure in two subsystems with different states of conservation in a floodplain of southern Brazil Estrutura
The ZSM Diptera collection contains around 12,500 determined species (see lists of families, species, types), representing about 10% of the worlds scientifically described fly fauna. About 1,250 species are represented by type material. Additionally, there are large amounts of material still awaiting conclusive analysis. In the dry collection the core families are Asilidae, Bombyliidae, Conopidae, Diopsidae, Dolichopodidae, Leptogastridae, Limoniidae, Mycetophilidae, Pantophthalmidae, Stratiomyidae, Syrphidae, Tabanidae, Tachinidae, Tephritidae, and Tipulidae. The ZSMs special collection of Chironomidae (non-biting midges) includes about 60 000 microscope slides, making it one of the largest and most important of its kind. Another major part of the Diptera Section is the extensive alcohol collection, with the Chironomidae, Limoniidae and Mycetophilidae particularly well represented in terms of determined material. In addition, it contains much highly valuable yet incompletely studied material ...
A novel conserved RNA-binding domain protein, RBD-1, is essential for ribosome biogenesis
Synthesis of the ribosomal subunits from pre-rRNA requires a large number of trans-acting proteins and small nucleolar ribonucleoprotein particles to execute base modifications, RNA cleavages, and structural rearrangements. We have characterized a novel protein, RNA-binding domain-1 (RBD-1), that is involved in ribosome biogenesis. This protein contains six consensus RNA-binding domains and is conserved as to sequence, domain organization, and cellular location from yeast to human. RBD-1 is essential in Caenorhabditis elegans. In the dipteran Chironomus tentans, RBD-1 (Ct-RBD-1) binds pre-rRNA in vitro and anti-Ct-RBD-1 antibodies repress pre-rRNA processing in vivo. Ct-RBD-1 is mainly located in the nucleolus in an RNA polymerase I transcription-dependent manner, but it is also present in discrete foci in the interchromatin and in the cytoplasm. In cytoplasmic extracts, 20-30% of Ct-RBD-1 is associated with ribosomes and, preferentially, with the 40S ribosomal subunit. Our data suggest that ...
Biogenesis of messenger and ribosomal RNPs in the eukaryotic cell
In eukaryotic cells, gene expression involves multi-step processes in the nucleus and the cytoplasm. The different processes engage specific RNA-protein complexes, RNPs. Upon activation of most, if not all genes, a precursor RNA molecule is synthesized that has to be extensively processed and modified. In addition, the RNA has to associate with a distinct set of proteins. The composition of the RNP is often dynamic and changes over time. Several RNPs are exported to the cytoplasm, where they are involved in late steps of gene expression, including the synthesis of proteins.. The aim of this thesis has been to increase our knowledge about specific steps in messenger RNP (mRNP) and ribosomal RNP (rRNP) biogenesis in the eukaryotic cell.. We have characterized a novel protein, RBD-1, that is essential for ribosome biogenesis. RBD-1 contains six RNA-binding domains and is conserved in eukaryotes. In the dipteran Chironomus tentans, RBD-1 (Ct-RBD-1) is mainly located in the nucleolus, in an RNA ...
Species-specific PCR primers for identification of the sibling species Chironomus plumosus (Linnaeus, 1758) and Chironomus...
Applicability of the polymerase chain reaction (PCR) with species-specific primers to obtaining molecular markers for identification of the sibling species of Chironomus plumosus group - C. plumosus and C. balatonicus - has been estimated. The nucleotide sequences of internal transcribed spacer (ITS) from the locus encoding ribosomal RNA (rRNA) were used as the source for designing the species-specific primers. The primers allowing for identification of C. plumosus and C. balatonicus were constructed. One primer pair (plu107F/plu363R) gives the PCR product MAR2, specific of C. plumosus, and the other (bal86F/plu363R), the PCR product MAR6, specific of C. balatonicus. The testing involving 18 species of the genus Chironomus confirmed the specificity of the primers. The results suggest that the PCR with species-specific primers is promising for construction of molecular markers for identification not only of these two, but also of other Chironomus species.. doi: 10.5324/fn.v31i0.1381.. Published ...
Betta Fish Food Recall by Hartz Mountain for Possible Salmonella bacteria - BettaFishforSale.org
Betta Fish Food Recall by Hartz Mountain for Possible Salmonella bacteria contamination. Wardley Betta Fish Food made by Hartz Mountain Corporation is recalling their Fish Food because it may be contaminated with Salmonella bacteria. While there are no re
Chironomid Greeting Cards | Fine Art America
Choose your favorite chironomid greeting cards from thousands of available designs. All chironomid greeting cards ship within 48 hours and include a 30-day money-back guarantee.
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Download Everything You Need To Know About Healing From Rape Trauma (Need To Know Library) 2000
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Torbjørn Ekrem - NTNU
I am interested in evolution, systematics and biogeography, in particular of non-biting midges of the family Chironomidae (Diptera). My research focuses on taxonomy, biology, phylogeny, zoogeography and molecular systematics of genera and species in the tribe Tanytarsini, but I am also involved in work with other groups of animals and plants. Among these, tardigrades through the project Tardigrades in Norwegian forests.. The last few years I have been heavily involved in various priojects testing and using DNA barcoding in biosystematics. I am currently chairing the Norwegian Barcode of Life network and project (NorBOL) which is a national research infrastructure on DNA Barcoding. NorBOL aims to develop a barcode reference database for Norwegian species to support barcoding in applied projects (such as EBAI). I am also involved in the COST action DNAqua-Net as member of the Management Committee and co-lead of the working group on reference libraries.. ...
Chironomus plumosus larvae increase fluxes of denitrification products and diversity of nitrate-reducing bacteria in freshwater...
Benthic invertebrates affect microbial processes and communities in freshwater sediment by enhancing sediment-water solute fluxes and by grazing on bacteria. Using microcosms, the effects of larvae of thewidespread midge Chironomus plumosus on the efflux of denitrification products (N2O and N2+ N2O) and the diversity and abundance of nitrate- and nitrous-oxide-reducing bacteria were investigated. Additionally, the diversity of actively nitrate- and nitrous-oxide-reducing bacteria was analyzed in the larval gut.The presence of larvae increased the total effluxes of N2O and N2+N2O up to 8.6- and 4.2-fold, respectively, which was mostly due to stimulation of sedimentary denitrification; incomplete denitrification in the guts accounted for up to 20% of the N2O efflux. Phylotype richness of the nitrate reductase gene narG was significantly higher in sediment with than without larvae. In the gut, 47 narG phylotypes were found expressed, which may contribute to higher phylotype richness in colonized ...
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In this study, Chironomus Heat Shock Proteins, Cytochrome 450, Glutathione S-transferase, Serine-type endopeptidase gene expressions were compared between polluted field areas (Chironomus plumosus) and under laboratory conditions (Chironomus riparious) to investigate molecular indicators for environmental contaminant stress assessment. Heavy metal (Al, Fe, Mn, Cu, Cr, Zn, Se, Pb, As, Cd) concentrations in sediments collected from three study areas exceeded the reference values. Moreover, HSPs, CYP450 and GST gene expression except SP for C. plumosus showed higher expression than C. riparious gene expression ...
Substratum preferences by larvae of three species of midge (Diptera: Chironomidae) - UCL Discovery
UCL Discovery is UCLs open access repository, showcasing and providing access to UCL research outputs from all UCL disciplines.
Potential use of acetylcholinesterase, glutathione-S-transferase and metallothionein for assessment of contaminated sediment in...
Heavy metals and organophosphorus insecticide is known to act as disruptors for the enzyme system, leading to physiologic disorders. The present study was conducted to investigate the potential use of these enzymes as biomarkers in assessment of contaminated sediments on tropical chironomid species. Acetylcholinesterase (AChE), glutathione-S-transferase (GST) and metallothionein (MT) activity was measured in the fourth-instar chironomid larvae, Chironomus javanus, Kieffer, after either 48-hr or 96-hr exposure to organophosphorus insecticide, chlorpyrifos (0.01- 0.25 mg kg-1) or heavy metal cadmium (0.1-25 mg kg-1). Exposure to chlorpyrifos (0.01 mg kg-1) at 48 and 96 hr significantly of AChE activity (64.2 % -85.9%) and induced GST activity (33.9 - 63.8 %) when compared with control (P,0.05). Moreover, exposure to cadmium (0.1mg kg-1) at 48 and 96 hr also showed significant increas GST activity (11.7 - 40 %) and MT level (9.0 % - 70.5 %) when compared with control (P,0.05). The results indicated ...
gnat vs mosquito
As far as I can tell (after looking around on the net), a Gnat is a name given to biting insects, which includes Midges and Mosquitos. Mosquito. Lifespan of Gnats. A mosquito trap that reduces the mosquito, gnat and midge population. Non-Biting Midges, commonly called simply gnats, are often mistaken for mosquitoes by their appearance. Hit enter to search or ESC to close Call Mosquito Squad for gnat control services. Within Diptera they constitute the family Culicidae (from the Latin culex meaning gnat). Midge, Gnats & Mosquito trap - Predator Dynamic. Because of this, they can spread disease. To download this image, create an account . They bite much more often and can carry diseases such as malaria By clicking on Sign up, you agree to Depositphotos Membership Agreement * Full of red blood gnat mosquito pest insect macro - Photo by ia__64. Photo by James Gathany, CDC. Predator Dynamic mosquito hu with scent that attracts Gnats, Midges & Mosquitoes. Mosquitoes prefer a wet, watery ...
Osmoregulation and salinity tolerance in the Antarctic midge, Belgica antarctica: seawater exposure confers enhanced tolerance...
Terrestrial larvae of B. antarctica tolerated extensive osmotic dehydration when challenged by hyperosmotic seawater. Nearly 50% of the larvae survived a 10-day exposure in ∼1000 mOsm kg-1 seawater, during which the total body water content of the larvae was reduced by∼ 30% to ,1.80 g H2Og-1 DM. Survival declined rapidly during exposure to higher seawater concentrations; however, even in ∼2000 mOsm kg-1 seawater ∼25% of larvae survived a 6-day exposure. As the larvae are known to tolerate an extensive loss of body water, survival during exposure to hyperosmotic seawater is probably not solely dependent on tolerance to dehydration. During desiccation in air, larvae survive the loss of nearly 70% of their body water to ,1.0 g H2Og-1 DM (Benoit et al., 2007). Instead, during seawater exposure, an incurred salt load from the external medium probably contributed to the observed mortality. Inorganic ions, and especially Na+ and Cl-, are well known to disrupt cellular activity by binding to and ...
Publications | Graduate Programs in Bioinformatics
Riley A.C., Ashlock D.A. & Graether S.P. (2019). Evolution of the modular, disordered stress proteins known as dehydrins. PLoS One. 14(2):e0211813.. Moore, C. & Meng, B. (2019). Prediction of the molecular boundary and functionality of novel viral AlkB domains using homology modelling and principal component analysis. Journal of General Virology. 10.1099/jgv.0.001237. Rajna, A., Gibling, H., Sarr, O., Matravadia, S., Holloway, G.P. & Mutch, D.M. (2018). Alpha-linolenic acid and linoleic acid differentially regulate the skeletal muscle secretome of obese Zucker rats. Physiological genomics, 50 8, 580-589.. Ekrem, T. & Stur, E. Orton, M. & Adamowicz, S. (2018). DNA barcode data reveal biogeographic trends in Arctic non-biting midges. Genome. 61. 10.1139/gen-2018-0100. Orton, M.G., May, J.A., Ly, W., Lee, D.J. & Adamowicz, S.J. (2018). Is molecular evolution faster in the tropics? Heredity, 1-12.. Malik A.A., Veltri M., Boddington K.F., Singh K.K. & Graether S.P. (2017). Genome Analysis of ...
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Chironomidae larvae from the lower Athabasca River, AB, Canada and its tributaries including macroscopic subfamily and tribe keys, indices for environmental tolerance and trait-based information for ...
Noopod: January 2010
Life and death are mutually exclusive states But some organisms showing no sign of living due to complete desiccation are nevertheless able to resume active life after rehydration This peculiar biological state is referred to as anhydrobiosis Larvae of the sleeping chironomid P vanderplanki living in temporary pools in semi-arid areas on the African continent become completely desiccated upon drought but can revive after water becomes available upon the next rain The anhydrobiotic larvae can stand other extreme conditions such as exposure to 100 r C -270 r C 100 ethanol 7kGy gamma-rays and vacuum As space environment is a typical extreme condition we propose that the sleeping chironomid could be a potential experimental animal for space-related study and indeed such experiments are rightly underway at ISS ...
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A new species of the genus Mesismittia Brundin, 1956 (Diptera: Chironomidae) from the Neotropics with a cladistic analysis of ... Neotropical and Mexican Mesosmittia Brundin, with description of four new species (Insecta, Diptera, Chironomidae). Spixiana 25 ... Zur Systematik der Orthocladiinae (Dipt., Chironomidae). Rep. Inst. Freshwat. Res. Drottningholm 37: 5-185. Donato, M. 2011. ...
They play a role in bioturbation and resuspension of organic matter and include Diptera (e.g. Chironomidae). Filterers remove ...
Diptera: Chironomidae)". The Journal of Experimental Biology. 209 (Pt 20): 4024-4032. doi:10.1242/jeb.02457. ISSN 0022-0949. ...
This followed the spirit of the family name Chironomidae, which in Ancient Greek means a pantomimist or one who entertains or ... Chironomus annularius (commonly known as bayfly or mufflehead) is a species of non-biting midge in the family Chironomidae. It ... The first documented accounts of the Chironomidae family were in the late 19th or early 20th century in England. Entomologists ... These meanings of names most likely alluded to the swarming behavior and movement of the midges belonging to the Chironomidae ...
n. (Diptera: Chironomidae). Aquatic Insects 5: 209-226. doi: 10.1080/01650428309361148. Stur E, Ekrem T. 2015. A review of ... Chironomidae IV. (Orthocladiinae, Corynoneurinae, Clunioninae, Diamesinae). Faune de France 23: 1-204. Sæther O.A. 1983. A ... Gymnometriocnemus is a genus of non-biting midges in the subfamily Orthocladiinae of the bloodworm family (Chironomidae). The ... A world catalogue of Chironomidae (Diptera). Part 2. Orthocladiinae. Irish Biogeographical Society & National Museum of Ireland ...
Chironomidae) in the Assessment of the Postsubmersion Interval". J. Forensic Sci. 60 (3): 822-826. doi:10.1111/1556-4029.12707 ... "Chironomus riparius (Chironomidae)". http://schmidt-ottlab.uchicago.edu/. Archived from the original on 30 January 2015. ... External link in ,website= (help) "Family Chironomidae". http://lakes.chebucto.org/ZOOBENTH/BENTHOS/benthos.html. Retrieved 30 ...
nov., isolated from a chironomid (Diptera; Chironomidae) egg mass". International Journal of Systematic and Evolutionary ...
List of Diptera of Ireland
Diptera - 2. Nematocera: families Tipulidae to Chironomidae (Chironomidae). R. L. Coe, Paul Freeman & P. F. Mattingly Vol 9 ... Diptères Nématocères Chironomidae. IV. 196 p., 315 fig. Faune n° 23 Séguy, E., 1934. Diptères (Brachycères). 832 p., 903 fig ... Vol 9 Part 2 i. Diptera - 2. Nematocera: families Tipulidae to Chironomidae (Tipulidae). R. L. Coe, Paul Freeman & P. F. ... Diptera - 2. Nematocera: families Tipulidae to Chironomidae (Trichoceridae - Culicidae). R. L. Coe, Paul Freeman & P. F. ...
Ole A. Sæther
His contributions to the database Fauna Europaea, as an expert on Chironomidae, were much appreciated. He resided at Ulriksdal ... He specialized in aquatic Diptera, especially Chironomidae and Chaoboridae. He penned about 265 academic publications (more ...
Among them, Chironomids, two-winged flies that belong to the family Chironomidae, are of greatest ecological importance due to ... Walker, Ian R. (1987-01-01). "Chironomidae (Diptera) in paleoecology". Quaternary Science Reviews. 6 (1): 29-40. Bibcode: ...
Chironomidae) in Aquascypha hydrophora (Berk.) Reid (Fungi; Stereaceae), with description of the pupae in the Central Amazonian ...
ISBN 1-86872-713-0. Walker, Ian R. (2001). "Midges: Chironomidae and related Diptera". In Smol, J. P.; Birks, H. J. B.; Last, W ... The larvae of some Chironomidae contain haemoglobin and are sometimes referred to as bloodworms. Non-biting midge flies are a ... phantom midges Chironomidae, non-biting midges (also known as muckleheads, muffleheads or lake flies in the Great Lakes region ... Chironomidae)". Ecotoxicology and Environmental Safety. 209: 111778. doi:10.1016/j.ecoenv.2020.111778. PMID 33338803. This page ...
... is a parthenogenetic genus in the subfamily Orthocladiinae (Chironomidae). A single species is recorded from ... from Brazil (Diptera: Chironomidae: Orthocladiinae). Zootaxa 979: 1-12. v t e. ...
n. (Diptera: Chironomidae) from Tennessee, USA". Entomologica Scandinavica. 15: 536-539. doi:10.1163/187631284X00389. Suzuki, H ... Apometriocnemus is a genus of non-biting midges in the subfamily Chironominae of the bloodworm family Chironomidae. A. ... Cranston, P. S.; Oliver, D. R. (1988). "ADDITIONS AND CORRECTIONS TO THE NEARCTIC ORTHOCLADIINAE (DIPTERA: CHIRONOMIDAE)". The ... N. from the Palaearctic Region (Diptera: Chironomidae)" (PDF). Tijdschrift voor Entomologie. 142 (1-2): 65-67. doi:10.1163/ ...
List of Chironomus species
This is a list of 647 species in Chironomus, a genus of midges in the family Chironomidae. Chironomus aberratus Keyl, 1961 c g ... n. (Diptera: Chironomidae) from southern Poland". Zootaxa. magnolia press. 3599 (6): 564-576. doi:10.11646/zootaxa.3599.6.5.. ...
Branch, Hazel E. (1922). "Notes on the Chironomidae of Kansas". Transactions of the Kansas Academy of Science. 31: 48. doi: ...
Members of Chironomidae include Parochlus steinenii. Antarctic krill, which congregate in large schools, is the keystone ...
... is a genus of non-biting midges in the subfamily Chironominae of the bloodworm family Chironomidae. ... Epler, J. H. (1988). "A reconsideration of the genus Apedilum Townes, 1945 (Diptera, Chironomidae)". Spixiana. Supplement 14: ... Tang, H. (2016). "Paralauterborniella from Oriental China (Diptera: Chironomidae)". Oriental Insects. 50 (4): 160-170. doi: ...
Kealia Pond National Wildlife Refuge
"XV International Symposium on Chironomidae" (PDF). Control of pestiferous emergences of Chironomidae: A case study of ... Chironomidae)". [Unpublished report] submitted to Ducks Unlimited, Rancho Cordova, California. James, Van (2001). Ancient Sites ...
... is a genus of flightless marine midges belonging to the subfamily Chironominae in the Chironomidae family. Insects in ... Edwards FW (1926) On marine Chironomidae (Diptera); with descriptions of a new genus and four new species from Samoa. ... Cheng, Lanna Cheng; Huang, Danwei (2014). "Discovery of the flightless marine midge Pontomyia (Diptera: Chironomidae) at ... Huang, D.; Cheng, L. (2011). "The flightless marine midge Pontomyia (Diptera: Chironomidae): ecology, distribution, and ...
n. (Diptera: Chironomidae) from Finland, with new Nearctic records of previously described species". Insect Systematics & ... CS1 maint: discouraged parameter (link) Przhiboro, Andrey; Ole A. Sæther (2007). "Limnophyes (Diptera: Chironomidae) from ...
Diptera - 2. Nematocera: families Tipulidae to Chironomidae (Trichoceridae - Culicidae). Royal Entomological Society, London ...
Przhiboro, Andrey; Ole A. Sæther (2007). "Limnophyes (Diptera: Chironomidae) from northwestern Russia" (PDF). Aquatic Insects. ...
Diptera, 1 (exclusive of Ceratopogonidae and Chironomidae). Zoology of Iceland 3 (48A): 1-189. Peder Nielsen - bibliotekar ...
... is a genus of non-biting midges of the bloodworm family Chironomidae. At present A. plumipes (Fries, 1823) is the ... Int Panis, L; Pauwels A; Verheyen R (1995). "Some observations on the Chironomidae of ponds". Bull. Ann. Soc. R. Ent. Belg. 131 ...
... is a genus of European non-biting midges in the subfamily Chironominae of the bloodworm family Chironomidae. It was ... Reiss, F.; Sublette, J.E. (1985). "Beardius new genus with notes on additional Pan-American taxa (Diptera, Chironomidae)". ... Chironomidae)". Journal of the Kansas Entomological Society. 71 (3): 315-382. JSTOR 25085851. SÆTHER, OLE A.; OYEWO, EMMANUEL ... Chironomidae)" (PDF). Revista de la Sociedad Entomológica Argentina. 73 (3-4): 139-144. ...
Common Aquarium Diet includes Bloodworms (Chironomidae Larvae). Polypterids possess paired lungs which connect to the esophagus ...
Maurice Emile Marie Goetghebuer
He concentrated on Diptera, especially the Chironomidae. Photo of Goetghebuer v t e v t e. ...
... is a genus of non-biting midges of the bloodworm family Chironomidae. The genus was previously considered a junior ... Epler, J. H. (1988). "A reconsideration of the genus Apedilum Townes, 1945 (Diptera, Chironomidae)". Spixiana. Supplement 14: ... nov., placement of Chironomus (Polypedilum) griseistriatum (Diptera, Chironomidae)" (PDF). Iheringia. Série Zoologia. 105 (1): ... Chironomidae)]". The American Midland Naturalist. 34 (1): 1-206. doi:10.2307/2421112. JSTOR 2421112. ...
Play media Orthocladiinae is a subfamily of midges in the non-biting midge family (Chironomidae). For lack of a better common ... n., a new Orthocladiinae (Diptera: Chironomidae) from Tennessee". Aquatic Insects. Taylor & Francis. 4 (3): 131-136. doi: ...
Chironomidae - Wikipedia
Chironomidae Research Group, University of Minnesota. *Family Chironomidae at Soil and Water Conservation Society of Metro ... Chironomidae. pp. 635-754. In: R.W. Merritt and K.W. Cummins, eds. An Introduction to the Aquatic Insects of North America. ... The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a family of nematoceran flies with ... Identification manual for the larval Chironomidae (Diptera) of North and South Carolina Archived 2005-12-14 at the Wayback ...
Natarsia Fittkau (Diptera: Chironomidae: Tanypodinae) from China
... Dataset homepage. Citation. Wang X (2005). Natarsia Fittkau ( ... Chironomidae: Tanypodinae) from China. Zootaxa 1111: 59-67, DOI: 10.5281/zenodo.171550 Taxonomic Coverages. Geographic ... Diptera: Chironomidae: Tanypodinae) from China. Plazi.org taxonomic treatments database. Checklist Dataset https://doi.org/ ...
Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) by Yue Fu, Xiangling Fang | Waterstones
Chironomidae) by Yue Fu, Xiangling Fang from Waterstones today! Click and Collect from your local Waterstones or get FREE UK ... Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) (Paperback). Yue Fu (author), Xiangling Fang (author), Xinhua Wang ( ... Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) is a useful resource for researchers and practitioners in the field of ... Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) provides detailed and accurate taxonomy of the Corynoneura generic ...
Diptera.info - Photo Albums: Chironomidae
Chironomidae (Midges) True Fly Larva Pictures
Chironomidae (Midges) True Fly Larva Pictures
The hemoglobin concentration of Chironomus cf. Plumosus l. (Diptera: Chironomidae) larvae from two lentic habitats |...
Chironomidae hemoglobin oxygen respiration spatial distribution This is a preview of subscription content, log in to check ... Proceedings of the 7th International Symposium on Chironomidae, Dublin, Pergamon Press: 43-50.Google Scholar ... In: P. Cranston, Ed., The Chironomidae-from genes to ecosystems, Proceedings of the 12th International Symposium on ... The hemoglobin concentration ofChironomus cf.Plumosus l. (Diptera: Chironomidae) larvae from two lentic habitats. ...
Chironomidae Larvae: Chironomidae Larvae, Vol. 3: Orthocladiinae Orthocladiinae by Henk K. M. Moller Pillot | Waterstones
Chironomidae Larvae, Vol. 3: Orthocladiinae Orthocladiinae by Henk K. M. Moller Pillot from Waterstones today! Click and ... Chironomidae Larvae: Chironomidae Larvae, Vol. 3: Orthocladiinae Orthocladiinae (Hardback). Henk K. M. Moller Pillot (author) ... Chironomidae Larvae, Vol.3: Orthocladiinae presents a wealth of information for scientific and practical purpose. ...
Two new species of Olecryptotendipes Zorina, 2007 from China (Diptera, Chironomidae)
Bu W (2011). Two new species of Olecryptotendipes Zorina, 2007 from China (Diptera, Chironomidae). Plazi.org taxonomic ... Two new species of Olecryptotendipes Zorina, 2007 from China (Diptera, Chironomidae) Dataset homepage ... Chironomidae). ZooKeys 208: 41-49, DOI: http://dx.doi.org/10.3897/zookeys.208.3299, URL: http://dx.doi.org/10.3897/zookeys. ...
Chironomidae Larvae - deel 2 - Vermandel.com
Chironomidae Larvae - deel 2 kopen? Vermandel.com is dé specialist als het gaat om insecten en entomologie. Vragen? Bel gerust ... Chironomidae larvae deel 2. Biology and Ecology of the Chironomini. Auteur: Henk Moller Pillot. This 2nd part of a series on ... Chironomidae larvae covers the most important tribes Chironomini and Pseudochironomini and presents a wealth of information for ...
Isolation and chromosomal localization of a germ line-specific highly repetitive DNA family in Acricotopus lucidus (Diptera,...
DEVELOPMENT OF A NEW DESIGN OF AN INSECTARY MODEL FOR REARING AND | CHIRONOMUS Journal of Chironomidae Research
Effects of bioirrigation of non-biting midges (Diptera: Chironomidae) on lake sediment respiration
A taxonomic review of Guttipelopia (Diptera: Chironomidae) » Brill Online
Redescription of Paratanytarsus tenellulus (Goetghebuer, 1921) (Diptera: Chironomidae) » Brill Online
New Species of Rheotanytarsus Thienemann and Bause (Diptera: Chironomidae: Tanytarsini) from Darjeeling-Sikkim, Himalaya, India...
M. Tokeshi, "Species interactions and community structure," in The Chironomidae: Biology and Ecology of Non-Biting Midges, P. D ... S. S. Roback and W. P. Coffman, "Results of the Nepal Alpine zone research project, Chironomidae (Diptera)," Proceedings of the ... X. Wang and Y. H. Guo, "A review of the genus Rheotanytarsus Thienemann & Bause from China (Diptera: Chironomidae: Tanytarsini ... P. K. Chaudhuri, N. Hazra, and J. R. B. Alfred, "A checklist of Chironomid midges (Diptera: Chironomidae) of the Indian ...
Biochemical and morphological responses in chironomus riparius (Diptera, Chironomidae) larvae exposed to lead‐spiked sediment...
Chironomidae) larvae exposed to lead‐spiked sediment. The aim of the present study was to assess the potential use of ... Biochemical and morphological responses in chironomus riparius (Diptera, Chironomidae) larvae exposed to lead‐spiked sediment. ... No comments were found for Biochemical and morphological responses in chironomus riparius (Diptera, Chironomidae) larvae ...
Chironomidae - Plant Parasites of Europe
Chironomidae. Chironomidae. True midges. Unmistakable midges; the males have complicated, plumose antennae. The larvae are ... They are keyed out by Hering (1957a). Eventual users of that keys should realise that Chironomidae systematics has undergone ... They are keyed out by Hering (1957a). Eventual users of that keys should realise that Chironomidae systematics has undergone ...
Diversity and biomass of Chironomidae (Diptera) larvae in an impacted coastal lagoon in Rio de Janeiro, Brazil
Chironomidae Larvae, Volume 1: General Ecology and Tanypodinae | NHBS Academic & Professional Books
Limnophyes guarani sp. n., a new hygropetric Orthocladiiane from southern Brazil (Diptera: Chironomidae)
Taxonomy, morphology, phylogenetic relationships and distribution of Micropsectra Kieffer, 1909 (Diptera: Chironomidae) in:...
Tanytarsus; Parapsectra; Chironomidae; Chironomus; Krenopsectra; phylogenetic relationships; Diptera; distribution; ... Taxonomy, morphology, phylogenetic relationships and distribution of Micropsectra Kieffer, 1909 (Diptera: Chironomidae). in ... Taxonomy, morphology, phylogenetic relationships and distribution of Micropsectra Kieffer, 1909 (Diptera: Chironomidae). in ...
Spatial scale effects on Chironomidae diversity and distribution in a Mediterranean River Basin | Springer for Research &...
The aim of this work was to investigate Chironomidae distribution and abundance in a... ... Chironomidae are a very common insect group in running waters of Greece; however, they have been rarely studied. ... Chironomidae exuviae. A Key to Pupal Exuviae of the West Palearctic Region, ETI, Amsterdam, [CD-ROM].Google Scholar ... Chironomidae larvae. Biology and ecology of the Chironomini. KNNV Publishing, Zeist: 270.CrossRefGoogle Scholar ...
Prodiamesa olivacea Meigen and Prodiamesa bureshi Michailova (Diptera, Chironomidae, Prodiamesinae) as a candidate for...
Diptera: Chironomidae) as indicator of environmental stress in Sebeta River, Ethiopia. African Journal of Ecology, 53, 268-277. ... Odume, O. N., Muller, W. J., Palmer, C. G., & Arimoro, F. O. (2012). Mentum deformities in Chironomidae communities as ... Kuhlmann, M. L., Hayashida, C. Y., & Araujo, R. P. (2000). Using Chironomus (Chironomidae: Diptera) mentum deformities in ... Ilkova, J., Michailova, P., Szarek-Gwiazda, E., Kownacki, A., & Ciszewski, D. (2017). The response of Chironomidae (Diptera) ...
Get PDF - Taxonomical investigations of chironomid larvae (Diptera Chironomidae) from waters of the lowland region of Ohrid...
Diptera Chironomidae) from waters of the lowland region of Ohrid Valley ... The integrative roles of the chironomid diptera chironomidae larvae in the trophic web of a shallow 5 hectare lake in the ... The integrative roles of the chironomid (Diptera: Chironomidae) larvae in the trophic web of shallow, five hectare lake in the ... Contribution to the knowledge of taxonomy and ecology of the larvae of chironomid fauna (Diptera: Chironomidae) of Lake Ohrid. ...
Variation and Divergence of Multilocus Genome Markers in the Species of the Genus Chironomus (Diptera, Chironomidae), Russian...
Chironomidae), Russian Journal of Genetics" on DeepDyve, the largest online rental service for scholarly research with ... Variation and Divergence of Multilocus Genome Markers in the Species of the Genus Chironomus (Diptera, Chironomidae). Gunderina ... Variation and Divergence of Multilocus Genome Markers in the Species of the Genus Chironomus (Diptera, Chironomidae). Variation ... Genetic Variation and Genetic Divergence of Species of the plumosus Group (Diptera, Chironomidae) ...
Get PDF - Contribution to the chironomid fauna Diptera Chironomidae of the Upper-Tisza, NE Hungary Adatok a Felso-Tisza...
NE Hungary Adatok a Felso-Tisza arvaszunyog-faunajahoz Diptera Chironomidae ... Contribution to the chironomid fauna Diptera Chironomidae of the Upper-Tisza, ... Amazonian Chironomidae (Diptera, Chironomidae): A contribution to chironomid research in the Neotropics. Amazoniana 16(3-4): ... Chironomid Diptera biology and systematics - literature for native Chironomidae Biologie und Systematik der Chironomidae ...
Substratum preferences by larvae of three species of midge (Diptera: Chironomidae) - UCL Discovery
Substratum preferences by larvae of three species of midge (Diptera: Chironomidae). Keywords:. chironomid midges, Chironomidae ... Substratum preferences by larvae of three species of midge (Diptera: Chironomidae). HYDROBIOLOGIA , 339 (1-3) 93 - 99. ... Three chironomid midge (Diptera: Chironomidae) species (Cricotopus sylvestris (Fabricius); Psectrocladius limbatellus (Holmgren ...
Revision of the Genus Ablabesmyia (Diptera, Chironomidae, Tanypodinae) in Korea -Animal Systematics, Evolution and...
Chironomidae, Tanypodinae). These 271 specimens were re-examined and eight species were identified, with three of these species ... Out of the 12,100 slide-mounted specimens of Chironomidae collected throughout Korea from February 1977 to March 2016, 271 (2.2 ... Studies on Chironomidae (Diptera) in Korea. 1. Taxonomic study on adults of Chironomidae. Proceedings of the College of Natural ... The adult males of Tanypodinae (Diptera: Chironomidae) of the Holarctic region: keys and diagnoses. In: Chironomidae of the ...
- Chironomidae Larvae, Vol.3: Orthocladiinae presents a wealth of information for scientific and practical purpose. (waterstones.com)
- Bioirrigation or the transport of fluids into the sediment matrix due to the activities of organisms such as bloodworms (larvae of Diptera, Chironomidae), has substantial impacts on sediment respiration in lakes. (hu-berlin.de)
- Diversity and biomass of Chironomidae larvae were studied between January-November 1993 and March-November 1994 in an impacted lagoon in Rio de Janeiro, Southeastern Brazil, in an attempt to establish the ecological consequences of anthropogenic eutrophication processes. (scielo.br)
- The identification and use of Palaearctic Chironomidae larvae in palaeoecology. (springer.com)
- Assessment of impact of heavy metals on the communities and morphological deformities of Chironomidae larvae in the River Damodar (India, West Bengal). (springer.com)
- This experiment was conducted to test whether varying the oxygen content of a Chironomidae larvae's environment would result in a color change of the larvae, signifying a change in hemoglobin analog concentration. (tdl.org)
- The findings showed that the Chironomidae larvae from the high oxygen environment were in fact lighter than the others, and the larvae from the low oxygen environment were the darkest. (tdl.org)
- This data supports the hypothesis that varied oxygen concentration results in color change in Chironomidae larvae. (tdl.org)
- Immature stages of Simulium squamosum , reared in the laboratory from egg masses collected from the field at Boti Falls and Huhunya (River Pawnpawn) in Ghana, were observed to be attacked and fed upon by larvae of the chironomid Cardiocladius oliffi Freeman, 1956 (Diptera: Chironomidae). (biomedcentral.com)
- The Chironomidae (informally known as chironomids , nonbiting midges , or lake flies ) comprise a family of nematoceran flies with a global distribution. (wikipedia.org)
- Allergens of non-biting midges (Diptera: Chironomidae): a systematic survey of chironomid haemoglobins. (springer.com)
- Chironomidae (Midges) is a family of flies . (eol.org)
- The objective of this study was to analyze macroinvertebrate assemblages dominated by Chironomidae (Diptera) and to assess the protective nature of these midges' larval tubes against trace metals in the weakly polluted Bzura River. (degruyter.com)
- This dataset contains the digitized treatments in Plazi based on the original journal article Cheng, Ming, Wang, Xinhua (2006): Natarsia Fittkau (Diptera: Chironomidae: Tanypodinae) from China. (gbif.org)
- Out of the 12,100 slide-mounted specimens of Chironomidae collected throughout Korea from February 1977 to March 2016, 271 (2.2%) were from the genus Ablabesmyia (Diptera, Chironomidae, Tanypodinae). (koreascience.or.kr)
- The genus Ablabesmyia Johannsen, 1905 belongs to the subfamily Tanypodinae of the family Chironomidae. (koreascience.or.kr)
- Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) provides detailed and accurate taxonomy of the Corynoneura generic group and discusses the scientific basis for phylogenetic studies of Chironomidae. (waterstones.com)
- Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) is a useful resource for researchers and practitioners in the field of entomology, systematics, phylogeny, biogeography, biodiversity, and ecology. (waterstones.com)
- This dataset contains the digitized treatments in Plazi based on the original journal article Yan, Chun-Cai, Wang, Xin-Hua, Bu, Wen-Jun (2012): Two new species of Olecryptotendipes Zorina, 2007 from China (Diptera, Chironomidae). (gbif.org)
- Diptera: Chironomidae) as indicator of environmental stress in Sebeta River, Ethiopia. (springer.com)
- Genotoxic, metabolic, and biological responses of Chironomus sancticaroli Strixino & Strixino, 1981 (Diptera: Chironomidae) after exposure to BBP. (bvsalud.org)
- Lopatin, O. E. / Karyotype and chromosome polymorphism of Camptochironomus Pallidivittatus (diptera, chironomidae) . (elsevier.com)
- Neotropical and Mexican Mesosmittia Brundin, with description of four new species (Insecta, Diptera, Chironomidae). (wikipedia.org)
- A new species of the genus Mesismittia Brundin, 1956 (Diptera: Chironomidae) from the Neotropics with a cladistic analysis of the genus using quantitative characters. (wikipedia.org)
- The subfamily Orthocladiinae (Diptera: Chironomidae) is one of the richest in genera and species, and in Andean rivers above 2000 meters of altitude, the subfamily Orthocladiinae is very abundant, with multiple genera present in the high Andean region, and of which some have yet to be described. (crimsonpublishers.com)
- Chironomidae (Diptera: Chironomidae), with nearly 20000 species distributed throughout all the continents, from the Antarctic region to the Tropics, inhabit lakes, streams and rivers during their larval and pupal developmental stages [1,7,8]. (crimsonpublishers.com)
- Sæther, O.A. 1995: The first record of Buchonomyia Fittkau and the subfamily Buchonomyiinae from the New World (Diptera: Chironomidae). (wikimedia.org)
- Ashe, P. 1995: Description of a late-instar larva of Buchonomyia thienemanni Fittkau and further data on its ecology with diagnoses for the subfamily Buchonomyiinae and the genus Buchonomyia (Diptera: Chironomidae). (wikimedia.org)
- Rossaro, B. 2004: The first record of the subfamily Buchonomyiinae (Diptera, Chironomidae) from Italy. (wikimedia.org)
- New species and records of Goeldichironomus Fittkau , 1965 from Brazil (Diptera: Chironomidae). (wikimedia.org)
- Clarification of Einfeldia Kieffer , 1922 (Diptera: Chironomidae) with E. australiensis ( Freeman , 1961), comb. (wikimedia.org)
- Skusella Freeman (Diptera: Chironomidae): new species, immature stages from Africa, Asia and Australia, and expanded distributions. (wikimedia.org)
- New species and records of Zavreliella Kieffer , 1920 from Neotropical region (Diptera: Chironomidae). (wikimedia.org)
- Kawai, K. & H. Imabayashi , 2008: A new species of genus Stictochironomus (Diptera: Chironomidae), collected in the Oze river basin, Hiroshima, Japan. (wikimedia.org)
- H.F. Mendes & T. Andersen 2009: New species and records of Beardius REISS & SUBLETTE from Brazil (Diptera, Chironomidae). (wikimedia.org)
- Morphology lies: a case-in-point with a new non-biting midge species from Oriental China (Diptera, Chironomidae). (wikimedia.org)
- Diptera, Chironomidae, Chironomini), with the first full descriptions of the adult female and larva of N. nubens ( Edwards , 1929). (wikimedia.org)
- Eventual users of that keys should realise that Chironomidae systematics has undergone large changes in the last fifty years. (bladmineerders.nl)
- We attempt to balance taxonomic, systematics and ecological research on Chironomidae in an effort to better understand the ecological framework within which evolutionary processes have operated to produce the biological diversity of the family. (umn.edu)
- The research program consists of six basic areas of emphasis: taxonomy and systematics, biodiversity studies, responses to various types of pollution, stream ecology, studies of the diversity and co-evolution of Trichomycetes and their Chironomidae hosts, and cold-hardiness in aquatic insects. (umn.edu)
- Our taxonomic and systematics research has produced descriptions of new genera and species, descriptions and re-descriptions of immature stages, and new interpretations of systematic relationships of Chironomidae. (umn.edu)
-  However, they are not mosquitoes of any sort, and the term " sandflies " generally refers to various species of biting flies unrelated to the Chironomidae. (wikipedia.org)
- The biodiversity of the Chironomidae often goes unnoticed because they are notoriously difficult to identify and ecologists usually record them by species groups. (wikipedia.org)
- Multivariate ordination techniques were used to assess the association between environmental variables and species abundance, while variation partitioning was performed using partial canonical correspondence analysis to understand the importance of different explanatory variables in Chironomidae variation. (springer.com)
- Our studies of microhabitat differentiation among co-occurring species have shown that several species of Chironomidae are habitat specialists, predominating in very discrete microhabitats within lakes, streams or springs, or utilizing hyporheic and epirheic habitats. (umn.edu)
- At least 70 different species of fungi have been isolated from Chironomidae. (umn.edu)
- 2 (Chironomidae: Orthocladiinae), included among the larval keys of the Cricotopus-Oliveiriella complex, is difficult to determine based on its larval instar using the current morphological keys, which makes it necessary to use pupae for a species-level identification. (crimsonpublishers.com)
- We found all developmental stages of the midge Telmatogeton japonicus (Chironomidae) on offshore windmills near the major Swedish seaport Kalmar in the southern Baltic Sea. (nlbif.nl)
- In: P. Cranston, Ed., The Chironomidae-from genes to ecosystems, Proceedings of the 12th International Symposium on Chironomidae, Canberra. (springer.com)
- Buchonomyia burmanica sp.n. and Buchonomyiinae, a new subfamily among the Chironomidae (Diptera). (wikimedia.org)
- Larval stages of the Chironomidae can be found in almost any aquatic or semiaquatic habitat, including treeholes , bromeliads , rotting vegetation, soil, and in sewage and artificial containers. (wikipedia.org)
- Many aquatic insects, such as various predatory hemipterans in the families Nepidae, Notonectidae, and Corixidae eat Chironomidae in their aquatic phases. (wikipedia.org)
- Our research program focuses on the significance of Chironomidae in aquatic ecosystems. (umn.edu)
- Furthermore, these results are important to predict the impacts of climate change on cold-adapted aquatic insects ( Winter-Active Chironomidae Publications ). (umn.edu)
- In the water , it remains adsorbed to sedimentary particles causing toxic effects in aquatic invertebrates such as Chironomidae , which are important in maintaining ecosystem dynamics and are an important link in the food chain . (bvsalud.org)
- More recently we have expanded this research to include broader assessments of the biological diversity of Chironomidae in lakes, springs, intermittent and periennial streams and rivers in various regions of the world ( Biodiversity Publications ). (umn.edu)
- These findings contradict prior generalizations that Chironomidae are predominantly collector-gatherers and habitat or substrate generalists ( Stream Ecology Publications ). (umn.edu)
- The aim of this work was to investigate Chironomidae distribution and abundance in a Mediterranean intermittent river basin, identify the environmental factors that are linked to variation in their assemblages and to partition the influence of environmental and spatial components, alone and in combination, on Chironomidae community composition. (springer.com)
- Stream width and depth, water discharge, land uses, pH, and ecological quality were the most important factors structuring Chironomidae assemblages. (springer.com)
- The results of partial constraint analyses suggest that micro-scale variables play a major role in Chironomidae assemblages. (springer.com)
- The greatest diversity, lowest values of dominance and exclusive taxonomic composition in the Ivinhema River subsystem could be reflecting a less degraded environment, demonstrating that the conservation of these areas is essential for maintaining the diversity of Chironomidae. (docplayer.net)
- Biological Limnology Resumo: Objetivo: Esse estudo teve por objetivo comparar a composição taxonômica, distribuição, diversidade, abundância e dominância da comunidade de Chironomidae em dois subsistemas da Planície de inundação do alto rio Paraná em diferentes estados de conservação. (docplayer.net)
- Chironomidae Toxicity Tests--Biological Background and Procedures. (epa.gov)
- Many reference sources in the past century or so have repeated the assertion that the Chironomidae do not feed as adults, but an increasing body of evidence contradicts this view. (wikipedia.org)
- However, previous quantifications of bioirrigation impacts of Chironomidae have been limited by technical challenges such as the difficulty to separate faunal and bacterial respiration. (hu-berlin.de)
- The community of Chironomidae in the Paraná subsystem was composed predominantly by generalist and tolerant genera. (docplayer.net)
- Click on the appropriate link below to access a section that describes in more detail the methodology for collecting SFPE, and discusses relative merits and cost-effectiveness compared to other types of collections for inventorying Chironomidae faunas in lakes. (umn.edu)
- The family Chironomidae belongs to the most abundant macroinvertebrates in samples for water quality assessment and displays a wide tolerance range to contaminants, which makes it an excellent bioindicator. (crimsonpublishers.com)
- Comparative chromosomal analysis of populations of phytophilous chironomidae Glyptotendipes glaucus (Mg.) from Chernobyl-affected territory]. (telomerescience.com)
- Proceedings of the 7th International Symposium on Chironomidae, Dublin, Pergamon Press: 43-50. (springer.com)
- Review Chironomidae of the Holarctic Region: Keys and diagnoses. (pemberleybooks.com)
- The aim of this paper was to analyze the distribution of chironomids (Diptera, Chironomidae), and determine their substrate preferences, from two hydrosystems located in northeastern Algeria: the Kebir-East and the Seybouse wadis. (pagepressjournals.org)
- The family Chironomidae (Diptera) is the most widely distributed, most diverse, and often the most abundant of all families of benthic macroinvertebrates in aquatic ecosystems, including estuaries and other coastal marine ecosystems. (elsevier.com)
- Kranzfelder, P & Ferrington, LC 2018, ' Diversidad de especies de Chironomidae (Diptera) de estuarios en un gradiente de uso de suelo en la costa Caribe de Costa Rica ', Revista de Biologia Tropical , vol. 66, no. 3, pp. 1118-1134. (elsevier.com)
- Verschuren, D. Taxonomy and ecology of fossil Chironomidae (Insecta, Diptera) from Rift Valley lakes in central Kenya. (nature.com)
- Impact of 2,4-D and fipronil on the tropical midge Chironomus sancticaroli (Diptera: Chironomidae). (semanticscholar.org)
- His taxonomic expertise is with Ephemeroptera and Chironomidae. (csuchico.edu)
- Ceratopogonidae et Chironomidae nouveaux ou peu connus d'Europe (11e note). (naturalsciences.be)
- We characterized the taxonomic composition of Chironomidae, tested a Chironomidae Index of Biotic Integrity (CIBI) developed from extrinsic pollution tolerance values for its efficacy in evaluating the surface water quality and physical habitat, and made recommendations for increasing the sensitivity of the CIBI to detect differing degrees of stress across a range of estuaries in Costa Rica. (elsevier.com)
- I can only think of two ways in which Chironomidae could be of some nuisance to human. (taxanama.com)
- We identified 228 morphospecies and 70 genera from 17 071 Chironomidae pupal exuviae collected from nine estuaries, which ranked in the following order from lowest to highest biotic integrity based on CIBI scores: Estero Negro, Laguna Cuatro, Laguna Jalova, Laguna del Tortuguero, Río Parismina, Laguna Barra del Colorado, Río Pacuare, Río Bananito, and Río Estrella. (elsevier.com)
- Speaking of fish, here is one reason why Chironomidae are important. (taxanama.com)