Branchiopod crustaceans are represented by fairy, tadpole, and clam shrimps (Anostraca, Notostraca, Laevicaudata, Spinicaudata), which typically inhabit temporary freshwater bodies, and water fleas (Cladoceromorpha), which live in all kinds of freshwater and occasionally marine environments [1, 2]. The earliest branchiopods occur in the Cambrian, where they are represented by complete body fossils from Sweden such as Rehbachiella kinnekullensis [3] and isolated mandibles preserved as small carbonaceous fossils [4-6] from Canada. The earliest known continental branchiopods are associated with hot spring environments [7] represented by the Early Devonian Rhynie Chert of Scotland (410 million years ago) and include possible stem-group or crown-group Anostraca, Notostraca, and clam shrimps or Cladoceromorpha [8-10], which differmorphologically fromtheirmodern counterparts [1, 2, 11]. Here we report the discovery of an ephemeral pool branchiopod community from the 365-million-year-old Strud locality ...
Many plant seeds and invertebrates can survive passage through the digestive system of birds, which may lead to long distance dispersal (endozoochory) in case of prolonged retention by moving vectors. Endozoochorous dispersal by waterbirds has nowadays been documented for many aquatic plant seeds, algae and dormant life stages of aquatic invertebrates. Anecdotal information indicates that endozoochory is also possible for fully functional, active aquatic organisms, a phenomenon that we here address experimentally using aquatic snails. We fed four species of aquatic snails to mallards (Anas platyrhynchos), and monitored snail retrieval and survival over time. One of the snail species tested was found to survive passage through the digestive tract of mallards as fully functional adults. Hydrobia (Peringia) ulvae survived up to five hours in the digestive tract. This suggests a maximum potential transport distance of up to 300 km may be possible if these snails are taken by flying birds, although ...
Parent Directory - Asaphus_Platyurus_Ru.., 12-Dec-2014 07:23 849 t-platyurus1.jpg 19-Jul-2014 19:15 6.9K platyurus1.jpg 19-Jul-2014 19:15 39K ...
Dispersal of bryophytes is an intriguing issue, that can help understanding the geographical distribution of species and the assemblage of communities.
Thamnocephalus cerebrinoxius n. g., n. sp. is a sphyriid copepod found in the nasal capsules of a small enzootic west African shark, Leptocharias smithii (Leptochariidae), caught off the coast of Sene
Lepidocaris rhyniensis is an extinct species of crustacean. It is the only species known from the order Lipostraca, and is the only abundant animal in the Rhynie chert deposits. It resembles modern Anostraca, to which it is probably closely related, although its relationships to other orders remain unclear. The body is 3 mm (0.12 in) long, with 23 body segments and 19 pairs of appendages, but no carapace. It occurred chiefly among charophytes, probably in alkaline temporary pools. All the known specimens of Lepidocaris rhyniensis have been excavated from the Rhynie chert deposits in Aberdeenshire, Scotland, which is a famous Lagerstätte, or site of exceptional preservation. Lepidocaris is the only abundant animal in the deposits, and is likely to be responsible for many of the frequent coprolites found in the rocks. Lepidocaris was first described by D. J. Scourfield in a 1926 paper in the Philosophical Transactions of the Royal Society B. Scourfield could not accommodate his new genus in the ...
Walter, T. Chad (2008). Arctodiaptomus steindachneri kerkyrensis Pesta, 1935. In: Walter, T.C. & Boxshall, G. (2017). World of Copepods database. Accessed at http://www.marinespecies.org/copepoda/aphia.php?p=taxdetails&id=362940 on 2017-11- ...
Appendix C. References for Appendices A and B. Akçakaya H. R., M. A. Burgman, and L. R. Ginzburg. 1999. Applied Population Ecology. Principles and Computer Exercises using RAMAS EcoLab. Second edition. Sinauer Associates, Sunderland, Massachusetts, USA.. Baguette, M. 2003. Long distance dispersal and landscape occupancy in a metapopulation of the cranberry fritillary butterfly. Ecography 26:153 160.. Baguette, M., and G. Nève. 1994. Adult movements between populations in the specialist butterfly Proclossiana eunomia (Lepidoptera, Nymphalidae). Ecological Entomology 19:1 5.. Baguette, M., and N. Schtickzelle. 2003. Local population dynamics are important to the conservation of metapopulations in highly fragmented landscapes. Journal of Applied Ecology 40:404 412.. Bergman, K. O. 2001. Population dynamics and the importance of habitat management for conservation of the butterfly Lopinga achine. Journal of Applied Ecology 38:1303 1313.. Bergman, K. O., and J. Landin. 2002. Population structure ...
Bulletin of Zoological Nomenclature 61(4):214-224 "The dating of names proposed in the first Supplement to Thomas Jerdons Catalogue of the birds of the Peninsula of India.", by Dickinson EC, et al., 2004 ...
Scientists of the Max Planck Research Group Insect Symbiosis and the Experimental Ecology and Evolution Group at the Max Planck Institute for Chemical Ecology in Jena, Germany, found that acquiring a group of bacterial symbionts that are localized in the gut enabled firebugs to successfully exploit a food source that was previously inaccessible to them and lead to the diversification within this new ecological niche.
GARCÍA ABAD, Rocío (2003) Emigrar a la ría de Bilbao. Factores de expulsión y selección del capital humano (1877-1935). PhD thesis, UPV/EHU.. García Abad, Rocío (2003) Emigrar a la ría de Bilbao. Factores de expulsión y selección del capital humano (1877-1935). Other thesis, Universidad del País Vasco-Euskal Herriko Unibertsitatea.. ...
H/SS 124. Problems in Historical Demography. 9 units (3-0-6); first term. Birth, marriage, and death-the most basic events in peoples lives-are inextricably linked to larger economic and social phenomena. An understanding of these basic events can thus shed light on the economic and social world inhabited by people in the past. In this course students will be introduced to the sources and methods used by historical demographers to construct demographic measures for past populations. In addition, the course will cover a broad range of problems in historical demography, including mortality crises, fertility control, infant mortality, and the role of economic and social institutions in demographic change. While the emphasis is on societies in the past, there will be some discussion of modern demographic trends in various parts of the world. Not offered 2016-17. ...
In this paper, Lisa and I explore the emergent paradigm that maternal microbial transmission in animals is a universal phenomenon that ensures transgenerational maintenance of important host-microbe partnerships or functions over evolutionary time scales. To our knowledge, ours is the first literature review to encompass all forms of maternal transmission across the animal kingdom. Some of the stories we scavenged from the literature surprised even us. Thus, we have classified maternal transmission into two broad categories that reflect route of transmission (internal versus external) in order to facilitate future discussion of maternal transmission mechanisms in both invertebrates and vertebrates. We have defined internal maternal transmission as any transfer of microbes to an oocyte or embryo while still developing within the maternal body cavity, while external maternal transmission refers to the ingestion of maternal microbes after delivery, such as breastfeeding in humans or "egg smearing" ...
During the spring breeding season throughout the channeled scablands of eastern Washington, metamorphosed male and female blotched tiger salamanders (Ambystoma tigrinum melanostictum) utilize oropharyngeal suction to capture large quantities of small aquatic invertebrates. Stomach content analysis on salamanders from three populations of this subspecies revealed that they consume the following taxa: Copepoda, Cladocera, Culicidae, Anostraca, and Chironomidae. Although the amount of energy obtained by adults via in-water feeding was not calculated, the large volume of aquatic invertebrate material flushed from salamander stomachs suggests that this feeding strategy should add significantly to their total annual nutrient consumption.
Renner, S.S., Strijk, J.S., Strasberg, D. & Thébaud, C. 2010. Biogeography of the Monimiaceae (Laurales): a role for East Gondwana and long‐distance dispersal, but not West Gondwana. Journal of Biogeography 37(7): 1227-1238. doi: 10.1111/j.1365-2699.2010.02319.x reference page ...
Birds, in particular poultry and ducks, are a source of many infectious diseases, such as those caused by influenza viruses. These viruses are a threat not only to the birds themselves but also to poultry farming and human health, as forms that can infect humans are known to have evolved. It is believed that migratory birds in general play an important role in the global spread of avian influenza (AI). However, it is still debated how large this role precisely is and whether other modes of spread may be more important. The mallard (Anas platyrhynchos) is the worlds most abundant and well-studied waterfowl species. Besides being an important game and agricultural species, it is also a flagship species in wetland conservation and restoration. Waterfowl (Anseriformes: Anatidae) and especially ducks currently are the focal bird group in long distance dispersal of Avian Influenza in the wild, and the mallard has been identified as the most likely species to transport this virus.. In my thesis I ...
TY - JOUR. T1 - Effects of inorganic anions on Fenton oxidation of organic species in landfill leachate. AU - Deng, Yang. AU - Rosario-Muniz, Edualberto. AU - Ma, Xingmao. PY - 2012/1/1. Y1 - 2012/1/1. N2 - Fenton oxidation typically achieves only a moderate removal efficiency of chemical oxidation demand (COD) in treatment of a landfill leachate, incomparable to some other chemical oxidation processes (e.g. electrochemical oxidation). A traditional viewpoint is that the remaining highly oxidized organic species become recalcitrant to hydroxyl radical (OH·)-induced oxidation at a higher degree of Fenton oxidation. Although this may, at least partially, be true, the effects of inorganic anions, which are abundant in leachate, on Fenton oxidation have been largely ignored. The objective of this study is to assess the roles of three inorganic anions (nitrate, sulfate, and chloride) originally present in or externally added to leachate during Fenton oxidation of refractory organic species in ...
Progress in Environmental Science and Engineering: Removal of Arsenic from Landfill Leachate by Selected Low-Cost Sorbents: An Experimental Study at the Zixiaguan Landfill of Wuhan City, Central China
New scientific research from the U.S. Geological Survey (USGS) details how landfill leachate, disposed from landfills is host to numerous contaminants.
Presenter: Jessica C. North, University of OtagoPresentation title: Landfill leachate monitoring: applications of stable isotopesEvent: WasteMINZ Conference
Get the latest landfill leachate pumping news on Environmental XPRT, the worlds largest environmental industry marketplace and information resource.
Article The effect of urban landfill leachate characteristics on the coexistence of anammox bacteria and heterotrophic denitrifiers. Heterotrophic denitrification coexists with the anammox process contributing to N removal owing to the biodegradable ...
Landfill leachates were collected and their chemical properties analyzed once every two months over a ten-month period from the Gin Drinkers Bay (GDB) and Junk Bay (JB) landfills. The contents of sol
The disposal of urban waste into landfill has been used for long time because of its relatively low cost. One of most important drawbacks associated to ..
ISIC Code 0322: Fish farming in freshwater including farming of freshwater ornamental fish, Culture of freshwater crustaceans, bivalves, other
https://www.fightaging.org/archives/2014/05/a-report-from-the-first-international-mini-symposium-on-methionine-restriction-and-lifespan.php Methionine is an essential amino acid. Our metabolism cannot produce it, but is nonetheless an important raw material for the manufacture of proteins, and thus must be obtained in the diet. If you dont obtain enough of it, you die. Fortunately just about any sensible diet, and even most deficient diets, contain far more than you actually need to get by. Very few foodstuffs are lacking in methionine.. If you are the sort who likes undertaking strict and novel diets for the inherent challenge involved, rather than the outcome, then you should give up whatever you are doing right now and give a low methionine diet a try. You will be faced with challenging research to identify appropriate levels of methionine for a human low methionine diet, poor and contradictory nutritional data on the methionine content of various foodstuffs, and a comprehensive avoidance ...
The present invention concerns a body fluid testing device (10) for analyzing a body fluids, comprising a test media tape (30) adapted to collect the body fluid, a supply portion (100) storing an uncontaminated section of the test media tape, a storage portion (110) for storing a contaminated section of the test media tape, an exposure portion positioned between the supply portion and the storage portion, the exposure portion being adapted to expose a section of the test media tape to the body fluid. An important aspect is a tip portion (20) for exposing a test medium to body fluid application. The application further concerns a test media cassette for housing test media. Another aspect is a testing device and method that employs illumination of a test medium at the site for body fluid application.
If you have a question about this talk, please contact Vera Warmuth.. Abstract not available. This talk is part of the Zoology Graduate Seminars series.. ...
Pre-made tests on Adrift: Seventy-Six Days Lost at Sea Mid-Book Test - Medium, including multiple choice, short answer, short essay, and in-depth essay questions.
Pre-made tests on Blood Wedding Final Test - Medium, including multiple choice, short answer, short essay, and in-depth essay questions.
In Nature this week: review of scientific, technical, and ethical aspects of therapeutic genome editing; fitness consequence map for rice; and more.
Brassicaceae are almost exclusively pollinated by insects. A chemical mechanism in the pollen is active in many species to avoid selfing. Two notable exceptions are exclusive self pollination in closed flowers in Cardamine chenopodifolia, and wind pollination in Pringlea antiscorbutica.[7] Although it can be pollinated, Alliaria petiolata is self-fertile. Most species reproduce sexually through seed, but Cardamine bulbifera produces gemmae and in others, such as Cardamine pentaphyllos, the coral-like roots easily break into segments, that will grow into separate plants.[7] In some species, such as in the genus Cardamine, seed pods open with force and so catapult the seeds quite far. Many of these have sticky seed coats, assisting long distance dispersal by animals, and this may also explain several intercontinental dispersal events in the genus, and its near global distribution. Brassicaceae are common on serpentine and dolomite rich in magnesium. Over a hundred species in the family accumulate ...
Anaerobic treatment methods have been preferred for landfill leachate which has a high organic content. However, the wastewater is also characterized...
To address these questions, the researchers used a high-throughput sequencing technology to characterize the gut microbiota associated with multiple members of the firebug family and its sister family, the bordered plant bugs or Largidae. They discovered that many different members of the firebug family share the same core microbiota. Interestingly, all the insect taxa that harbored the core microbiota were confined to a single clade within the Pyrrhocoridae, while the core microbes were completely absent from their sister family, the Largidae.. According to phylogenetic analyses, the association between firebugs and the core microbiota originated around 81 million years ago (in the late Cretaceous) which coincided with the emergence of their host plants, the Malvales. "The acquisition of the gut-associated core microbiota apparently enabled firebugs to successfully overcome the plants defenses and nutritional shortcomings and utilize the Malvales seeds as a food source," explains Sailendharan ...
These biotopes are considered to have a high recovery potential. Sebens (1985, 1986) noted that bryozoans and hydroids covered scraped areas within 4 months in spring, summer and autumn. Hydroids exhibit rapid rates of recovery from disturbance through repair, asexual reproduction and larval colonization. Sparks (1972) reviewed the regeneration abilities and rapid repair of injuries. Fragmentation of the hydroid provides a route for short distance dispersal, for example, each fragmented part of Sertularia cupressina can regenerate itself following damage (Berghahn & Offermann, 1999). New colonies of the same genotype may, therefore, arise through damage to existing colonies (Gili & Hughes, 1995). Many hydroid species also produce dormant, resting stages that are very resistant of environmental perturbation (Gili & Hughes 1995). Although colonies may be removed or destroyed, the resting stages may survive attached to the substratum and provide a mechanism for rapid recovery (Cornelius, 1995a; ...
These are a few of the pdf files (and a few Microsoft Word documents) that Ive accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isnt working, e-mail me at [email protected] and Ill be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since October 27, 2017. Phylum Arthropoda Subphylum Crustacea Class Branchiopoda - Fairy Shrimp, Clam Shrimp and Their Relatives Subclass Phyllopoda Order Lipostraca Scourfield, D.J. (1926). V. On a New Type of Crustacean from the Old Red Sandstone (Rhynie Chert Bed , Aberdeenshire) - Lepidocaris rhyniensis, gen. et sp. nov. Philosophical Transactions B, Vol.CCXIV. Order Notostraca - Tadpole Shrimp Gand, G., et al. (2008). Notostraca trackways in Permian playa ...
Dynatec Systems has built on its water treatment experience that began in the 1970s using membranes with rugged industrial reliability to produce UF and RO systems. Dynatec has over 17 years experience with membrane bioreactors and has developed many unique process improvements necessary for industrial wastewater applications.
The blog provides information of a general & public nature regarding national or other developments. None of the information contained herein is intended as legal advice or opinions relative to specific matters, facts, situations or issues. Additional facts, information or future developments may affect the subjects addressed in this blog. You should consult with an expert about your particular circumstances before acting on any of this information because it may not be applicable to your situation. This blog contains information and links to sites which are not owned or maintained by myself. I am not responsible for the content, linked sites, and the views expressed on linked sites do not necessarily reflect my views or opinions. The information contained herein is provided for personal, non-commercial, educational, entertainment and informational purposes only and does not constitute a guarantee of information or facts. I make no claims, expressed, implied, or statutory regarding the accuracy, ...
Our site doesnt host any file or offering download for any book. All of the download are provided by our adversiser. For copyright & DMCA report, please send email to ΑDC.DΜCΑ@ΟUΤLΟΟK.CΟΜ ...
In discussing the advantages of sex, one must keep in mind the host of disadvantages that comes with it. For one, large amounts of energy are required to maintain the sex organs. Studies have shown that Drosophila with sex organs removed tend to live significantly longer than their sexually active counterparters (controlled for STDs, I assume!). Of course, the actual practice of sexual intercourse itself tends to be quite dangerous. Just think of the diseases that can be passed around this way! Also, remember that sex isnt confined to humans alone. Flies and lizards have sex too! Many animals have elaborate mating rituals that require great input of energy and often make these animals easy pickings for predators. When you say that diversity is main benefit conveyed by sex, you should keep in mind that the first sexual organisms were single celled organisms with evolutionary time scales multitudes faster than our own. The rate of mutation in bacterial colonies comes from the fact that they can ...
Dairy foods and beverages account for about 70% of all dietary calcium intake among Americans. Dozens of epidemiological and randomised controlled trials in adults and children have used dairy products as the principal source of calcium, and have credited dairy intake with preventive benefits on study end points including bone mass, fractures and osteoporosis. A recent meta-analysis of over 270 000 people showed a strong trend for dairy intake protecting against hip fracture; the relative risk (RR) of hip fracture per daily glass of milk was 0.91, 95% CI 0.81 to 1.01.9. In many industrialised nations, milk is often the most cost-effective strategy for achieving recommended levels of calcium intake at a population level. Yet, legitimate concerns exist regarding potential deleterious effects of chronic dairy intake on health.10-16 Dairy foods, on an evolutionary time scale, are relative new-comers to the hominin diet.17 Domestication of cattle, sheep and goats first occurred approximately 11 ...
A heterogeneous specific binding assay method for determining the amount of a suspected analyte in an aqueous test medium wherein a reaction mixture is formed by combining the test medium with assay reagents including a labeled reagent, an immobilizable component, and a binding substance which causes the immobilizable component to precipitate. Free and bound species of the labeled reagent are formed as a function of the amount of the analyte in the test medium. One of the free and bound species of the labeled reagent is immobilized by binding of the immobilizable component with the binding substance. The immobilized labeled reagent is seperated from labeled reagent which has not been immobilized, and the amount of label in the labeled reagent in one of the separated fractions is determined and related to the amount of analyte in the test medium. The improvement provided is the use of an immobilizable component comprising a water dispersible, aggregatable reagent comprising a binding partner for the one
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PROFESSIONAL Fairy Professional Original Washing Up Liquid 5L Date of issue: 17/11/2011 Revision date: Version: 1.0 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1.
When making liquid filled cheeses, all the ingredients are mixed in a homogenous way and the product can be sold straight after it has cooled.
Brako, L. and Zarucchi, J.L. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monographs in Systematic Botany from the Missouri Botanical Garden 45: 1-1286.. CDC (Centro de Datos para la Conservación). 1998. Estado de conservación de Puya raimondii (Harms): evaluación y sugerencias para un plan de acción. CDC-Bolivia (Centro de Datos para la Conservación/TROPICO), La Paz.. Fjeldså, J. and Kessler, M. 1996. Conserving the biological diversity of Polylepis woodlands of the highland of Peru and Bolivia. NORDECO, Copenhagen.. Givnish, T.J. Millam, K.C., Evans, T.M., Hall, J.C., Pires, J.C., Berry, P.E. and Sytsma, K.J. 2004. Ancient vicariance or recent long distance dispersal? Inferences about phylogeny and South American - African disjunction in Rapateaceae and Bromeliaceae based on n dhF sequence data. International Journal of Plant Sciences 165: S35-S54.. Hartmann, O. 1981. Puya raimondii cada vez son menos. Boletín de Lima 10: 79-83.. Horres, R., Zizka, G., Kahl, G. and ...
The legal requirements for wastewater discharge into environment, especially to zones exposed to eutrophication, lately became stricter. Nowadays wastewater treatment plants have to manage with the new rules and assure better biogenic elements removal, in comparison with the past. There are some well-known methods of diminishing concentrations of these compounds, but they are ineffective in case of nitrogen-rich streams, as landfill leachate or reject waters from dewatering of digested sludge. This wastewater disturbs conventional processes of nitrification-denitrification and raise necessity of building bigger tanks. The partial nitritation followed by Anaerobic Ammonium Oxidation (Anammox) process appear to be an excellent alternative for traditional nitrification/denitrification. The process was investigated in three different reactors - Membrane Bioreactor (MBR), Moving Bed Biofilm Reactor (MBBR) and Rotating Biological Contactor (RBC). The process was evaluated in two options: as a ...
Hydroids exhibit rapid rates of recovery from disturbance through repair, asexual reproduction and larval colonization. Sparks (1972) reviewed the regeneration abilities and rapid repair of injuries. Fragmentation of the hydroid provides a route for short distance dispersal, for example, each fragmented part of Sertularia cupressina can regenerate itself following damage (Berghahn & Offermann, 1999). New colonies of the same genotype may therefore arise through damage to existing colonies (Gili & Hughes, 1995). Many hydroid species also produce dormant, resting stages that are very resistant of environmental perturbation (Gili &Hughes 1995). Although colonies may be removed or destroyed, the resting stages may survive attached to the substratum and provide a mechanism for rapid recovery (Cornelius, 1995a; Kosevich & Marfenin, 1986). The lifecycle of hydroids typically alternates between an attached solitary or colonial polyp generation and a free-swimming medusa generation. Planulae larvae ...
Escaping from predators often demands that animals rapidly negotiate complex environments. The smallest animals attain relatively fast speeds with high frequency leg cycling, wing flapping or body undulations, but absolute speeds are slow compared to larger animals. Instead, small animals benefit from the advantages of enhanced maneuverability. We report a novel behavior in small, legged runners that may facilitate their escape by disappearance from predators. Cockroaches (Periplaneta americana ) and geckos (Hemidactylus platyurus) ran rapidly at 12-15 body lengths-per-second toward a ledge without braking, dove off the ledge, attached their feet by claws like a grappling hook, and used a pendulum-like motion that can exceed one meter-per-second to swing around to an inverted position under the ledge, disappearing from an overhead view. We discovered evidence for the potential use of rapid inversion in nature. Geckos in the rainforests of Southeast Asia can run over fern leafs, engage their ...
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