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Comparing risks among pesticides has substantial utility for decision makers. However, if rating schemes to compare risks are to be used, they must be conceptually and mathematically sound. We address limitations with pesticide risk rating schemes by examining...

["Agricultural Science","Entomology","Environmental Sciences","Toxicology"]

Background. Many families find regular checking of children’s heads for head louse infestation too onerous and would prefer to be able to prevent infestation by use of a topical application that deters lice from infesting the head. Identification in the laboratory...

["Entomology","Parasitology","Epidemiology","Pediatrics","Public Health"]

The Schmidt Sting Pain Index rates the painfulness of 78 Hymenoptera species, using the honey bee as a reference point. However, the question of how sting painfulness varies depending on body location remains unanswered. This study rated the painfulness of honey...

["Entomology","Anaesthesiology and Pain Management"]

It has been widely accepted that aphids and their primary endosymbiotic bacteria Buchnera have strictly parallel diversification relationship. As the first reported case of insect-bacteria cospeciation, this parallel diversification hypothesis has been prevalent,...

["Entomology","Evolutionary Studies","Genetics","Microbiology","Zoology"]

Specialist herbivores are often thought to benefit the larger plant community, because they prevent their host species from becoming competitively dominant. In contrast, specialist enemies are not generally expected to have negative impacts on non-hosts. However,...

["Biodiversity","Ecology","Entomology","Plant Science"]

Weevils are one of the largest groups of living organisms, with more than 60,000 species feeding mostly on plants. With only one exception, their described larvae are typical plant-feeders, with mouthparts adapted to chewing plant material. Here we describe the...

["Animal Behavior","Entomology","Taxonomy","Zoology"]

Understanding female mate preference is important for determining the strength and the direction of sexual trait evolution. Male signalling intensity is often an important predictor of mating success because higher intensity (louder) signallers are detectable at...

["Animal Behavior","Ecology","Entomology","Evolutionary Studies"]

Wing pigmentation in Calopteryx damselflies, caused by the deposition of melanin, is energetically expensive to produce and enhances predation risk. However, patterns of melanisation are used in species identification, greater pigmentation is an accurate signal...

["Animal Behavior","Biogeography","Ecology","Entomology","Evolutionary Studies"]

Honey bees have been domesticated for centuries, and are now managed commercially to pollinate crops and produce hive products. Recently, bumblebee colonies have also been reared commercially and transported worldwide for crop pollination.Mounting evidence suggests...

["Conservation Biology","Entomology","Parasitology"]

Females of solitary, nest-provisioning bees have relatively low fecundity, but produce large eggs as part of their overall strategy of investing substantially in each offspring. In intraspecific comparisons of several species of solitary, nest-provisioning bees...

["Ecology","Entomology","Evolutionary Studies"]

Psychoneuroimmunology studies the increasing number of connections between neurobiology, immunology and behaviour. We establish Drosophila melanogaster as a tractable model in this field by demonstrating the effects of the immune response on two fundamental behaviours:...

["Animal Behavior","Entomology","Zoology"]

Species traits may provide a short-cut to predicting generalities in species turnover in response to environmental change, particularly for poorly known taxa. We ask if morphological traits of assemblages respond predictably to macrohabitats across a large scale....


Only recently has it been formally acknowledged that native species can occasionally reach the status of ‘pest’ or ‘invasive species’ within their own native range. The study of such species has potential to help unravel fundamental aspects of biological invasions....

["Agricultural Science","Ecology","Entomology"]

The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC), where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a...

["Ecology","Entomology","Plant Science"]

Signa are sclerotized structures located on the inner wall of the corpus bursa of female Lepidoptera whose main function is tearing open spermatophores. The sexually antagonistic coevolution (SAC) hypothesis proposes that the thickness of spermatophore envelopes...

["Animal Behavior","Entomology","Evolutionary Studies","Zoology"]

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