Behavioral studies of stick insects have identified six mechanisms which coordinate leg stepping. All six are active between ipsilateral leg pairs. As a first step towards locating the neurons mediating these interactions, the present study describes the effects of cutting one of the paired thoracic connectives. After the operation the following changes in step coordination occurred. The ipsilateral leg immediately caudal to the severed connective generally showed weak stepping. In free-walking animals it often remained near its posterior extreme position and dragged along the substratum. During supported walking, rhythmic stepping was common, but the swing phase of this leg was longer and both temporal and spatial coordination were disturbed. When the leg made a pause it usually stopped in the air near the end of its swing movement. During steady walking, the operation interrupted information from the adjacent forward leg normally used to guide the end-point of the swing or to signal errors in ...
Allan J.D. 1982. Feeding habits and prey consumption of three setiplapian stoneflies (Plecoptera) in a mountain stream. Ecology 63:26-34.. Allan J.D. Flecker A.S. & McClintock N.L..1987. Prey size selection by carnivorous stoneflies. Limnol. Oceanogr. 32:864-72.. Baumann R.W. 1979. Nearctic stonefly genera as indicators of ecological parameters (Plecoptera: Insecta). Gt Basin Nat. 39:241 244.. Benfield E.F.1974.Autohemorrhage in two stoneflies (Plecoptera) and its effectiveness as a defense mechanism. Ann. ent. Soc. Am. 67:739.. Bottorff R.L & Knight A.W. 1987. Ectosymbiosis between Nanocladius downesi (Diptera: Chironomidae) and Acroneuria abnormis (Plecoptera: Perlidae) in a Michigan stream, USA. Ent. Gen.12:97-1113.. Brinck P. 1949. Studies on Swedish stoneflies. Opusc. Ent. Suppl. 11:1-126.. Brittain J.E. & Mutch R.A.1984.The effect of water temperature on the egg incubation period of Mesocapnia oenone (Plecoptera) from the Canadian Rocky Mountains. Can. Ent. 116:549-554.. Bukantis R.T. & ...
Storrer, J., and Cruse, Holk. 1977. "Systemanalytische Untersuchung eines aufgeschnittenen Regelkreises, der die Beinstellung der Stabheuschrecke Carausius morosus kontrolliert: Kraftmessungen an den Antagonisten Flexor und Extensor tibiae: Open Loop Analysis of a Feedback Mechanism Controllingthe Leg Position in the Stick Insect Carausius morosus: Measurements of the Forces Produced by the Flexor and Extensor Tibiae Muscles". Biological cybernetics 25 (3): 131-142 ...
Bharadwaj RK. 1966. Observation on the bionomics of Euborellia annulipes (Dermaptera: Labiduridae). Annals of the Entomological Society of America 59:441-450.. Calixto A, Dean A, Knutson A, Harris M. 2006. Density changes of two earwigs, Labidura riparia (Pallas) and Euboriellia annulipes (Lucas) following fire ant reduction in Mumford, Texas. Southwestern Entomologist 31: 97-101. Choate P.M. 2001. The earwigs (Dermaptera) of Florida and eastern United States. http://entnemdept.ifas.ufl.edu/choate/dermaptera.pdf (13 November 2002).. Hoffman KM. 1987. Earwigs (Dermaptera) of South Carolina, with a key to the eastern North American species and a checklist of North American Fauna. Proceedings of the Entomological Society of Washington 89:1-14.. Klostermeyer EC. 1942. The life history and habits of the ring-legged earwig, Euborellia annulipes (Lucus) (Order Dermaptera). Journal of the Kansas Entomological Society 15:13-18.. Lemos WP, Ramalho FS, Zanuncio JC. 2003. Age-dependent fecundity and ...
Green lacewings (Neuroptera: Chrysopidae) are voracious predators of aphids and other small, soft-bodied insects and mites. Earlier, we identified (1R,2S,5R,8R)-iridodial from wild males of the goldeneyed lacewing, Chrysopa oculata Say, which is released from thousands of microscopic dermal glands on the abdominal sterna. Iridodial-baited traps attract C. oculata and other Chrysopa spp. males into traps, while females come to the vicinity of, but do not usually enter traps. Despite their healthy appearance and normal fertility, laboratory-reared C. oculata males do not produce iridodial. Surprisingly, goldeneyed lacewing males caught alive in iridodial-baited traps attempt to eat the lure and, in Asia, males of other Chrysopa species reportedly eat the native plant, Actinidia polygama (Siebold & Zucc.) Maxim. (Actinidiaceae) to obtain the monoterpenoid, neomatatabiol. These observations suggest that Chrysopa males must sequester exogenous natural iridoids in order to produce iridodial; we investigated
Dohet, A. 2002. Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Supplementa Entomologica (Proceedings of the 10th International Symposium on Trichoptera) 15: 507-520.. Frania, H.E. and G.B. Wiggins. 1997. Analysis of morphological and behavioural evidence for the phylogeny and higher classification of Trichoptera (Insecta). Royal Ontario Museum Life Sciences Contributions 160. Ontario.. Friedlander, M. 1993. Phylogenetic position of rhyacophiloid caddisflies (Insecta, Trichoptera), a spermatological analysis of Rhyacophilidae and Glossosomatidae. Zoologica Scripta, 22(3): 299-304.. Friedlander, M. and R.E. Jeger. 1990. Phylogenesis of spermatogenesis in Annulipalpia caddisflies: An ultrastructural analysis on Philopotamidae spermiogenesis. Journal Of Structural Biology 105(1-3): 75-79.. Gall, W.K. 1994. Phylogenetic studies in the Limnephiloidea, with a revision of the world genera of Goeridae (Trichoptera). Ph.D. dissertation, Univ. of Toronto, ...
Dohet, A. 2002. Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Supplementa Entomologica (Proceedings of the 10th International Symposium on Trichoptera) 15: 507-520.. Frania, H.E. and G.B. Wiggins. 1997. Analysis of morphological and behavioural evidence for the phylogeny and higher classification of Trichoptera (Insecta). Royal Ontario Museum Life Sciences Contributions 160. Ontario.. Friedlander, M. 1993. Phylogenetic position of rhyacophiloid caddisflies (Insecta, Trichoptera), a spermatological analysis of Rhyacophilidae and Glossosomatidae. Zoologica Scripta, 22(3): 299-304.. Friedlander, M. and R.E. Jeger. 1990. Phylogenesis of spermatogenesis in Annulipalpia caddisflies: An ultrastructural analysis on Philopotamidae spermiogenesis. Journal Of Structural Biology 105(1-3): 75-79.. Gall, W.K. 1994. Phylogenetic studies in the Limnephiloidea, with a revision of the world genera of Goeridae (Trichoptera). Ph.D. dissertation, Univ. of Toronto, ...
Many homeowners accept some insect damage, while others will tolerate none. The level of damage you deem acceptable largely determines the level of control required. Insecticidal control (applying chemicals) is still one of the quickest, easiest ways to control insects. But use it only when absolutely necessary. Sticking to a strict spray schedule is a waste of money in most cases. It may actually create pest problems by killing beneficial insects that eat other insects. And its generally not good for the environment.. Read and follow the instructions for safe mixing and application on the label of each pesticide you use. Pay close attention to the plants or crops a pesticide can and cant be used on. Concerning vegetables, pay close attention to the the amount of time required between the last application and harvest.. Gardeners willing to tolerate some insect damage can generally grow their plants with minimal use of insecticides. Some insects are always on the move - here today and gone ...
There is scattered information on the status of and knowledge about stick insects in Māori tradition. Names include rō, whe and wairaka. In some traditions they were considered to be relatives of the mantis. If either of these landed on a woman it signified she was pregnant, and which insect it was indicated the childs sex. Some sayings claim that gardens are unsuitable where there are stick insects. In other sayings, when they drop onto you from a forest tree it is a sign that you have entered a sacred site.. In legend, before creating people, the god Tāne Mahuta fathered (with Punga) the trees, birds and insects of the forest. It was Tāne who pushed apart the sky (Ranginui) and earth (Papatūānuku) so there was light, allowing the forest inhabitants to see, breath and move. The insects are considered to be the children or embodiment of Tāne and deserving of respect.. In the story of Rātā, who cut down a tree to build a canoe without first paying respect to Tāne, the insects gathered ...
There is a lot of talk concerning the health benefits of omega fatty acids. Currently omega fatty acids are among the best selling dietary supplements. At the moment insects are already being used to extract protein for dietary products like protein powder. During the protein extraction process, insect oil consisting of omega threes are also extracted, but the oil is not used. Instead the oil is thrown out and wasted. Many researches are disappointed that the valuable oil is wasted, and researchers now want to determine which insects are best for omega oil extraction. Additionally, researchers want to ascertain what an insects diet should consist of in order to extract the highest quality omega fatty acids. Insects naturally produce saturated and unsaturated fatty acids. So far the leading researcher involved in procuring fatty acids from insects has successfully extracted the highest quality oil from mealworms, beetle larvae, crickets, cockroaches, grasshoppers and soldier flies. The extracted ...
Caddis flies, order Trichoptera, were caught in light traps in Girton, Cambridge, UK, and in Llandinam, Powys, UK, during September and October 2012. The species caught fell into three broad categories according to body length and mass: (1) large (body length 10-15 mm and body mass 23-70 mg): Limnephilus marmoratus Curtis 1834, cinnamon sedge (family Limnephilae) and Odontocerum albicorne (Scopoli 1763), silver sedge (family Odontoceridae), N=22 insects; (2) medium (body length 7-12 mm and body mass 8-16 mg): Molanna angustata Curtis 1834 (family Molannidae) and Oecetis lacustris (Pictet 1834), longhorn caddis (family Leptoceridae), N=7 insects; and (3) small (body length 4.5-6 mm and body mass 1.5-6 mg): Mystacides azurea (Linnaeus 1761), silverhorn (family Leptoceridae), N=26 insects. No video data on Odontocerum albicorne and Oecetis lacustris are presented.. Photographs of live caddis flies were taken with a Nikon D90 camera fitted with a 100 mm Nikon macro lens. The anatomy of the legs was ...
University biologists agree, claiming that certain types of beetles, ants, crickets, and grasshoppers offer nearly as much protein per gram as lean red meat or broiled fish. Crickets need 12 times less feed than cattle to produce the same amount of protein.. Insects can also be rich in copper, iron, magnesium, manganese, phosphorus, selenium and zinc. They are also a source of fiber.. The UN said that insects provide a while slew of benefits outside of nutrition. The report claims that eating insects is also better for the environment - according to the agency, most insects are likely to produce fewer environmentally harmful greenhouse gases than other livestock.. The report pitched the idea of insect farming:. "Insects are everywhere and they reproduce quickly." Currently, most edible insects are gathered in forests, and the small amount of insect farming which does take place serves niche markets such as the fish bait industry.. The UN even suggests that the restaurant industry could help in ...
Insect information from University of Minnesota Extension experts. This page lists insects by category: household insects, flower insects, fruit and vegetable insects, lawn insects, tree and shrub insects, biting insects and ticks, insect relatives, and general/curiousity insects.
Thats a lot to take in, so lets start with where stoneflies live. Stonefly nymphs live in swift, cold, clean water. Stoneflies are an excellent indicator species for the health of trout streams because, like trout, stoneflies cannot tolerate water that is warm, polluted, or carries a low oxygen content. The best place to find bugs is under rocks and gravel that are in the rivers current, especially in riffles where the natural churning effect of the water keeps it cool and full of oxygen.. The bugs will vary in size from less than 1/8 inch to over 1 inch long but are usually black, brown, or yellow in color. Their flat bodies and strong legs help them cling to underwater rocks, and theyre able to crawl along the bottom and among rocks with a distinct wiggling action. They do not swim, though they can become dislodged from rocks and drift downstream before finding another foothold.. Stoneflies go through a process called incomplete metamorphosis, meaning there is no wormlike larva stage or ...
A liquid bait for target insects and methods of attracting or controlling insects by means of its use. Sorbitol is dissolved in an amount of water sufficient to form an aqueous carrier. The dissolved sorbitol is in a concentration great enough to be effective as a humectant to retard drying of the liquid carrier. The liquid bait further includes at least one insect attractant that is dissolved, dispersed, suspended, or emulsified in the liquid carrier in an amount effective to attract the target insects. The insect attractant may include, in combination, sucrose, fructose, d-maltose, the lithium salt of saccharin, lithium chloride, and vitamins. The liquid bait also may include an effective amount of an insect control active ingredient selected from the group consisting of insecticides, insect growth regulators, chitin inhibitors, insect pathogens, insect-controlling materials derived from insect pathogens, and combinations thereof.
Introduction. Insects are overwhelmingly diverse ... so diverse you might well think it impossible to routinely recognize bugs, beetles and flies the way we expect at least a passing familiarity with most of the birds, mammals and other vertebrates that cross our paths. That perception is grounded in reality, since most known species of living things -- about a million of the 1.7 million or so named species -- are insects, and the number of insect species as yet undiscovered and unnamed undoubtedly runs into further millions. It all seems hopelessly overwhelming -- but it shouldnt.. Insect diversity, especially the almost untapped diversity of little-studied insects such as tiny tropical flies, should be seen as a rich ore of insights to be mined for generations to come rather than as a barrier to the study of insect natural history today. In fact, most insects are relatively easy to identify to a meaningful level. The orders of insects -- the big groups such as flies, beetles, dragonflies and ...
MANAGE INSECTS On Your Farm A Guide to Ecological Strategies Miguel A. Altieri and Clara I. Nicholls with Marlene A. Fritz HANDBOOK SERIES BOOK 7 MANAGE INSECTS ON YOUR FARM A Guide to Ecological Strategies
Insects can use plants as ℠green phones´ for communication with other bugs. A new study now shows that through those same plants insects are also able to leave ℠voicemail´ messages in the soil. Herbivorous insects store their voicemails via their effects on soil fungi. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Wageningen University (WUR) discovered this unique messaging service in the ragwort plant. The influential journal Ecology Letters will soon publish these results.. A few years ago, NIOO scientists discovered that soil-dwelling and aboveground insects are able to communicate with each other using the plant as a telephone. Insects eating plant roots change the chemical composition of the leaves, causing the plant to release volatile signals into the air. This can convince aboveground insects to select another food plant in order to avoid competition and to escape from poisonous defense compounds in the plant. But the impact doesn´t stop there.. The new ...
A majority of humans spend their waking hours surrounded by insects, so it should be no surprise that insects also appear in humans dreams as we sleep. Dreaming about insects has a peculiar history, marked by our desire to explain a dreams significance and by the tactic of evoking emotions by injecting insects in dream-related works of art, film, music, and literature. I surveyed a scattered literature for examples of insects in dreams, first from the practices of dream interpretation, psychiatry, and scientific study, then from fictional writings and popular culture, and finally in the etymology of entomology by highlighting insects with dream-inspired Latinate names. A wealth of insects in dreams, as documented clinically and culturally, attests to the perceived relevance of dreams and to the ubiquity of insects in our lives.
You may have thought that only birds were physically capable of migrating to warmer climates during the winter months, while tiny insects stay behind and perish in the icy conditions. As it turns out, many insects are just as capable as birds at moving to more hospitable climates when it is needed.. Researchers from Lund University in Sweden have been studying migratory patterns of various insects. The researchers were surprised at the high number of insect species that migrate south for the winter, and north for the summer. In fact, much of the scientific community was in agreement that most insects simply die during the winter or manage to survive with the help of progressively warmer winters, but they were wrong. The lead researcher at Lund University stressed the importance of monitoring migratory patterns of insects because many migrating insects are pests and keeping track of them is tremendously important, especially for farmers. However, monitoring insect travel patterns is also ...
The fossil record of the Dermaptera starts in the Late Triassic to Early Jurassic period about 208 million years ago in England and Australia, and comprises about 70 specimens in the extinct suborder Archidermaptera. Some of the traits believed by neontologists to belong to modern earwigs are not found in the earliest fossils, but adults had five-segmented tarsi (the final segment of the leg), well developed ovipositors, veined tegmina (forewings) and long segmented cerci; in fact the pincers would not have been curled or used as they are now.[16] The theorized stem group of the Dermaptera are the Protelytroptera. These insects, which resemble modern Blattodea, or cockroaches owing to shell-like forewings and the large, unequal anal fan, are known from the Permian of North America, Europe and Australia. There are no fossils from the Triassic when the morphological changes from Protelytroptera to Dermaptera took place.[42] The most likely, and most closely resembling, related order of insects is ...
Insect communities and their interactions with plants are structured by habitat elements of ecosystems and their surrounding landscapes. For example diversity of some functional groups such as predatory ants changes with vegetation diversity and density at the scale of forest plots(1) while the amount of forest in a landscape increases the diversity and functions of insect communities relying on forest(2). Hence the retention of structural elements in forest stands (habitat trees, dead wood) and their surrounding landscapes (amount of forest) shape the diversity of insects and their functions.. From research on the effectiveness of management practices and habitat enhancement to increase insect diversity and ecosystem functions in agricultural landscapes(3) general hypotheses were formulated(2): for example the intermediate landscape complexity hypothesis describes that management at the habitat scale aiming to enhance biodiversity and ecosystem functions are most effective in landscapes of ...
Grounds managers know that leaf-feeding insects can be a major problem for ornamentals. However, they may or may not be aware of how the damage they are seeing occurs. If you want to gain a greater understanding of such insects, the damage they can cause and effective control strategies, read on.The damage a leaf-feeding insect can inflict on a tree or shrub is significant in many cases. A graphic
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An insect trap and method of use. The insect trap has a roof, side walls, rear wall, front wall, and floor. The front wall has a front wall aperture, and the rear wall has at least one rear wall aperture. A plurality of dividers are disposed within the insect trap, with a divider aperture associated with each divider. The divider apertures alternate between being adjacent the floor and adjacent the roof in successive dividers. The method includes the steps of mounting an insect trap in a structure opening, allowing insect-enticing chemicals to waft from inside the structure opening to outside the structure opening through the insect trap, enticing the insect through a front wall aperture, divider apertures, and into an inner chamber adjacent the rear wall, and entrapping the insect within the inner chamber because the rear wall apertures are too small to admit passage to the insect.
Mai? 14, 1957 B. c. CHAPPELL LAMP CARRIED TRAP FOR MOTHS AND OTHER INSECTS Filed Jan. 25, 1954 IN VEN TOR. BE)? 7 c. cw PPE l. L fie/3M United States Patent LAMP CARRIED TRAP FOR Morris Ann orrmn INSECTS Bert C. Chappell, Pleasant Hill, Mo. Application January 25, 1954, Serial No. 405,779 1 Claim. (Cl. 43--113) This invention relates to improvements in devices for trapping and annihilating moths and other insects, particularly those with the ability to fly and which are attracted by light, such as from an incandescent lamp. The principal object of the present invention is to provide an insect trap and annihilator which can be readily suspended by an incandescent lamp bulb, so that insects attracted by the bulb when energized will be trapped and exterminated as a result of contact with heat from the bulb. Another important object of the invention is to provide an insect trap and annihilator constructed in such a manner as to not only catch and exterminate insects but to cause automatic expulsion ...
Insects such as fruit flies (Drosophila), Greater Wax Moths (Galleria) and a type of Hawkmoth (Manduca) can be used to test the efficacy of new antimicrobial drugs or to judge how virulent fungal pathogens are. It is now routine practice to use insect larvae to perform initial testing of new drugs and then to use mice for confirmation tests. As well as reducing by up to 90% the number of mice required, this method of testing is quicker as tests with insects yield results in 48 hours whereas tests with mice usually take 4-6 weeks.. ""We will continue to explore the similarities between insect and mammalian immune responses so that insects can be used as models to study different disease states in humans," said Dr Kavanagh. ...
Insect damage reduces sugar yields from sugar beet. Biotechnology is being used to make sugar beet more resistant to insect attack and increase sugar yields. Regulatory switches (plant promoters) are needed for steering the production of insecticidal compounds to insect damage sites. We identified several sugar beet switches that direct insect-fighting compounds to the root skin, the whole root or leaves. This information will be used to develop safer approaches of insect control to increase yields and reduce usage of chemical pesticides. To feed the rising global population will require that crops have an increased capacity to utilize shrinking natural resources and to resist diseases and insect pests. We studied plant responses to environmental stresses, primarily high soil salt concentrations due to reduced water availability. Our results demonstrate that a growth regulator gene known to enhance insect resistance supported plant growth in high salt concentrations, extended the growing period ...
Earwig: Earwig, (order Dermaptera), any of approximately 1,800 species of insects that are characterized by large membranous hindwings that lie hidden under short, leathery forewings. The name earwig is derived from the Anglo-Saxon word meaning
New genomic sequencing confirms that stick insects discovered near Lord Howe Island are the assumed-extinct Lord Howe stick insect.
Two types of photoreceptors are found in the median ocellus of Limulus. One type is maximally sensitive to ultraviolet (UV) light, the other to green light; they are called UV and VIS cells, respectively. Biphasic receptor potentials, consisting of a small initial hyperpolarizing phase and a later slow depolarizing phase, can be recorded from both receptor types. These biphasic responses are elicited in UV cells in response to long-wavelength light, and in VIS cells in response to ultraviolet light. Another type of hyperpolarizing response can be recorded in UV cells: after a bright ultraviolet stimulus, the cell remains depolarized; long-wavelength light rapidly returns the membrane potential to its value preceding ultraviolet illumination (this long-wavelength-induced potential change is called a "repolarizing response"). Also, a long-wavelength stimulus superimposed during a UV stimulus elicits a sustained repolarizing response. A third cell type (arhabdomeric cell) found in the median ...
Provides keys to identify families, genera, aquatic and terrestrial species of Neuroptera, including Megaloptera  Features over 600 illustrations
See the Insects: This is the main part of the app, and is an interactive insect encyclopedia. Navigation through the encyclopedia is by swiping through a series of meadow scenes, the insects in the different sections are on plants and flowers in the meadow. Insects featured in the app are from the order Diptera (flies), Hemiptera (cicada), Lepidoptera (butterflies and moths), Coleoptera (beetles, ladybugs) and Orthoptera (grasshoppers and crickets). The meadow can be viewed at night or day, and is accompanied by insect sounds to suit the time of day. For each order there is an introductory screen which teaches the student about that order, its features, lifecycle and feeding habits. The student can also use a magnifying glass to look more closely at the insect and learn about its body parts. There are also post-it notes with more information if you click on them. After the introduction, come screens that look like specimen boxes containing an insect which moves if you touch it! It also contains ...
Homeowners are way outnumbered when it comes to fighting bugs, and one of the most common reasons why people use PestControl411.nets professional insect exterminators is that theyve already tried everything they could think of to no avail. Insect control is a science, and the measures that might completely eradicate an insect problem in one scenario could be ineffective in another. Professional insect exterminators bring more to the table than a spray-bottle. When you hire a pro from PestControl411.net for insect control, you are getting his or her knowledge not just of insects in general, but of their activity in your specific area.. Getting rid of roaches or ants in Florida is different than reducing wasp activity in Pennsylvania. Your local insect exterminator will be outfitted with all the best equipment and will have access to products the average homeowner doesnt. While your own efforts might end without making much of an impact, a good exterminator will be able to assess the situation ...
Homeowners are way outnumbered when it comes to fighting bugs, and one of the most common reasons why people use PestControl411.nets professional insect exterminators is that theyve already tried everything they could think of to no avail. Insect control is a science, and the measures that might completely eradicate an insect problem in one scenario could be ineffective in another. Professional insect exterminators bring more to the table than a spray-bottle. When you hire a pro from PestControl411.net for insect control, you are getting his or her knowledge not just of insects in general, but of their activity in your specific area.. Getting rid of roaches or ants in Florida is different than reducing wasp activity in Pennsylvania. Your local insect exterminator will be outfitted with all the best equipment and will have access to products the average homeowner doesnt. While your own efforts might end without making much of an impact, a good exterminator will be able to assess the situation ...
Classical biological control (CBC) is the introduction of a natural enemy of exotic origin to control a pest, usually also exotic, aiming at permanent control of the pest. CBC has been carried out widely over a variety of target organisms, but most commonly against insects, using parasitoids and predators and, occasionally, pathogens. Until 2010, 6158 introductions of parasitoids and predators were made against 588 insect pests, leading to the control of 172 pests. About 55% of these introductions were made against pests of woody plants. Establishment rates of natural enemies and success rates were higher in CBC projects targeting pests of woody plants than other pests. This review aims to answer the questions most commonly asked regarding CBC against insect pests, with particular emphasis on tree pests. The topics covered include, among others: variations in rates of successes among different systems, different target insect groups and different agents; temporal trends in CBC practices and successes;
Insects are the most abundant group of living creatures on earth with up to 30 million estimated species of insect found worldwide.Insects can be found in all ranges of environment even (but limited) in the oceans and rivers. Insects feed on other, smaller...
... Cosmid.16.07.15.Neuroptera.XXX.720p.MP4-KTR http://chronos.to/t/032/03326/7mzxok1gz6o6
University of Copenhagen. Butterflies and dragonflies with a lighter shade of color do better in warmer areas of Europe. This gives them a competitive advantage over the darker insects in the face of climate change. Changes in Europes insect assemblages due to warming can already be seen for dragonflies, shows a study recently published in Nature Communications.. "When studying biodiversity, we lack general rules about why certain species occur where they do. With this research weve been able to show that butterfly and dragonfly species across Europe are distributed according to their ability to regulate heat through their colour variation," explains leading author Dirk Zeuss from Philipps-University Marburg in Germany.. Together with colleagues from the University of Copenhagen and Imperial College London, the scientists showed a clear pattern of light-colored insects dominating the warmer south of Europe and darker insects dominating the cooler north. Furthermore, they showed that for ...
Earwigs can be both a beneficial insect and a garden pest. Learn how to control an overpopulation by killing earwigs using traps and preventing them from entering your home and basement.
insect - Insect Structure and Function - Despite their diversity, all adult insects share some basic external and internal anatomical features. Insects are distinguished from other members of the animal kingdom by having six legs; one pair of antennae; a ringed, or segmented, body; and three well-defined body regions. It is from the joined body rings, or segments, that insects derived their name, for the Latin word insecta means
The largest wings of any living insect belong to the Queen Alexandra birdwing butterfly and the atlas moth. They can span 10 to 12 inches across. But even these giants are puny compared to the insects of prehistory. Meganeura, for example, was a dragonfly that lived 300 million years ago and each of its wings was the length of my arm. Why do such behemoths no longer exist?. The prevailing theory, proposed around a century ago, is that the Earths atmosphere used to have much more oxygen-more than 30 per cent in the Permian, compared to just 20 today. This vital gas sets an upper limit on how big animals can be. The seething quantities of past eras allowed flying insects to fuel faster metabolisms and larger bodies.. Matthew Clapham and Jered Karr from the University of California, Santa Cruz have now found some strong evidence to support this idea, after analysing more than 10,500 fossilised insect wings. It took almost 18 months to collect the entire data set, but it clearly showed that the ...
However, this theory has had some holes poked in it. Unnatural light sources, like fires, have been around for thousands of years. So maybe natural selection should have plucked out the insects that behaved in this suicidal way. Also, a lot of moths dont migrate, so it wouldnt make any sense for them to use moonlight to navigate.. Another idea is that when an insect sees an unobstructed light source, it means that the pathway is clear. So the insect will then fly directly towards it to avoid any obstacles in their way. Weve all heard that little clunk of an insect hitting a light bulb!. Scientists havent made up their mind yet as to why insects seem to turn into kamikaze pilots when faced with artificial light. Its really difficult to prove one theory as the stand out reason, so its definitely a topic that will keep on being debated for years to come.. If you are having a problem with insects outside your home, contact Empire Ltd today for advice on how to prevent pests entering your home, ...
This dataset contains the digitized treatments in Plazi based on the original journal article Hu, Yan-Li, Tsring, Samten, Wang, Bei-Xin, Sun, Chang-Hai (2020): Descriptions of larvae of three Philopotamidae species from China (Insecta, Trichoptera). Zootaxa 4731 (4): 509-521, DOI: https://doi.org/10.11646/zootaxa.4731.4.4 ...
The caddisfly genus Ceraclea Stephens is redefined to include 89 known species previously assigned to the genus Athripsodes Billberg. The two genera make up the tribe Athripsodini. Three main lineages are recognized in Ceraclea, indcluding the nominate subgenus and the subgenera Athripsodina Kimmins and Pseudoleptocerus Ulmer. Four species groups are identified in the subgenus Ceraclea and eight species groups in the subgenus Athripsodina. The African subgenus Pseudoleptocerus in not studied here in detail. Descriptions, illustrations, and keys are presented for all species examined, along with distributional notes and type information.
The booklice were collected at grain storage facilities. L. entomophila were collected in Beibei, Chongqing and L. paeta in Wuzhou, Guangxi, China. They were identified to species by morphology [17, 23], and partial sequences of rrnL and cox1 genes [24]. Total genomic DNA was extracted from ~300 booklice specimens (20 mg) using a Tissue/Cell gDNA Mini Kit (Watson Biotechnologies, Shanghai, China) and stored at -20°C.. Partial sequences of cox1, cob, rrnS, and rrnL genes of L. entomophila were amplified initially by PCR with conserved insect primers [25]. Two pairs of primers, E1 - E2 and E3 - E4, were designed from cox1 and cob genes (Additional file 1). Two overlapping fragments were amplified by long PCR with E1 - E2 and E3 - E4, sequenced and assembled into a contig (L. entomophila chromosome I) with SeqMan (DNAStar). The non-coding sequence, which contains the sites for genome replication and the initiation of gene transcription, is always shared by all of mini-chromosomes of a fragment mt ...
Hello This is a big subject, so Ill just give you a quick run down and some links for further reading. Heres a quote from Introduction to Insect Ecology ( http://www.humboldt.edu/~mac24/zoo580/lecture_notes1.html ) By virtually any measure of success, insects are among the most ecologically successful terrestrial and freshwater organisms on Earth. (Insects are....) taxonomically dominant, with estimates of the number of insect species ranging from just over 1 M to greater than 30 M species world-wide. The most most credible current estimates are probably 3-8 M species, with greatest diversity in the tropical forests...(and there is a )...general inverse relationship between latitude and species richness. Effectively, this means the further north (or south) you go, the less species of insects there are. The climate change due to latitude ( the macroclimate) is influenced by: - the variation in intensity of heat from the sun over earths surface - Tilt of earth 23.5 degrees off the plane ...
Pest insects like aphids and mites can infest your garden plants or your herbs, often eating away at them and ruining your gardens. Numerous chemicals on the market will help get rid of pest insects, but you may not want to use potentially harmful substances, especially if youre growing herbs that youre ...
Hello - Does anybody can help with working protocol about differential or gradient centrifugation for subcellular fractionation of insect cells (Sf9 cell line)? Also, any information about the densities or/and sedimentation coefficients of different types of INSECT cell organelles would be helpful. Unfortunately, I have no possibility for electron microscopy and no knowledge about marker enzymes for insect cell organelles to design a good experimental protocol for determining the insect cell subcellular fractions. Merike Meier, PhD student meerike at kbfi.ee ...
The County of San Luis Obispos Department of Agriculture/Weights and Measures Pest Detection Program is focused on finding destructive insect pests and the plant diseases they may carry. The Program is part of a three-pronged approach to keep destructive insects out: pest exclusion, pest detection and pest eradication. County Pest Detection Trappers, working year-round, act as detectives, examining strategically placed insect traps located in plants favored by specific invasive insects. With homeowners cooperation, traps are placed throughout local urban communities which are likely points of introduction. Traps contain lures that attract targeted insect species, intercepting any that may be in the surrounding neighborhood ...