Sweetpotato (Ipomea batatans) is a food crop of global significance. The storage roots and foliage of crop are attacked by a wide range of pests and diseases. Whilst these are generally well controlled in developed countries using approaches such as clean planting...

["Agricultural Science","Entomology","Plant Science"]
doi:10.7287/peerj.preprints.2394v1
48 downloads
437 views

The taxonomic knowledge about immature stages of the insect order Odonata (dragonflies and damselflies) is rather limited in tropical America. Here, the larvae of Epigomphus jannyae Belle, 1993 and E. tumefactus Calvert, 1903 are described, figured, and compared...

["Entomology","Taxonomy"]
doi:10.7717/peerj.2338
31 downloads
223 views

Estimating the exposure of honeybees to pesticides on a landscape scale requires models of their spatial foraging behaviour. For this purpose, we developed a mechanistic, energetics-based model for a single day of nectar foraging in complex landscape mosaics. Net...

["Agricultural Science","Conservation Biology","Ecology","Entomology","Environmental Sciences"]
doi:10.7717/peerj.2293
42 downloads
82 views

Grazing extensification and intensification are among the main problems affecting European grasslands. We analyze the impact of grazing intensity (low and moderate) and the use of veterinary medical products (VMPs) on the dung beetle community in the province of...

["Biodiversity","Ecology","Entomology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2358v1
45 downloads
442 views

The blacklegged tick Ixodes scapularis is widely distributed in the United States and transmits multiple pathogens to humans, wildlife and domestic animals. Recently, several novel viruses in the family Bunyaviridae (South Bay virus (SBV) and Blacklegged tick phlebovirus...

["Ecology","Entomology","Genomics","Microbiology","Virology"]
doi:10.7717/peerj.2324
30 downloads
304 views

Development of a Nasonia in vitrogerm-free rearing system in 2012 enabled investigation of Nasonia-microbiota interactions and real-time visualization of parasitoid metamorphosis. However, the use of antibiotics, bleach, and fetal bovine serum introduced artifacts...

["Ecology","Entomology","Zoology"]
doi:10.7717/peerj.2316
71 downloads
143 views

Synchrotron-based techniques offer a wealth of elemental, molecular, and structural insights in biological samples, but the application of these techniques to fossils is a relatively new development. Here we examine how Synchrotron Radiation Micro X-Ray Fluorescence...

["Entomology","Paleontology","Science and Medical Education"]
doi:10.7287/peerj.preprints.2337v1
57 downloads
511 views

Factors such as temperature, habitat, larval density, food availability and food quality substantially affect organismal development. In addition, risk of predation has a complex impact on the behavioural and morphological life history responses of prey. Responses...

["Animal Behavior","Ecology","Entomology"]
doi:10.7717/peerj.2314
50 downloads
244 views

The study of environmental stress tolerance in aphids has primarily been at low temperatures. In these cases, and in the rare cases of high temperature tolerance assessments, all exposures had been during a single stress event. In the present study, we examined...

["Ecosystem Science","Entomology","Environmental Sciences"]
doi:10.7717/peerj.2290
34 downloads
196 views

Background. Many aphid species, including the pea aphid Acyrthosiphon pisum, exhibit a behaviour where they drop or fall from their host plant, a commonly used strategy to avoid predation, parasitism or physical disturbance. We hypothesised that there was a physiological...

["Agricultural Science","Animal Behavior","Ecology","Entomology"]
doi:10.7717/peerj.2236
25 downloads
106 views

Previous studies have shown that natural honeybee and bumble bee colonies are hosts of the small hive beetle (SHB) Aethina tumida, a pest of honeybee colonies in various regions of the world. Recent studies also reported the presence of SHBs in colonies of certain...

["Animal Behavior","Ecology","Entomology"]
doi:10.7287/peerj.preprints.2310v1
20 downloads
114 views

Winter mortality is a major factor regulating population size of the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae). Glycerol is the major cryoprotectant in this freeze intolerant insect. We report findings from a gene expression...

["Ecology","Entomology","Molecular Biology","Zoology"]
doi:10.7287/peerj.preprints.2311v1
67 downloads
290 views

Background. Calomera littoralis is a Palearctic species, widely distributed in Europe; inhabiting predominantly its Atlantic, Mediterranean and Black Sea coastlines. Methods. Its phylogeography on the Balkan Peninsula and on the north-western Black Sea coast was...

["Biodiversity","Biogeography","Entomology","Environmental Sciences","Taxonomy"]
doi:10.7717/peerj.2128
30 downloads
124 views

The family Dolichopodidae forms two of the four largest evolutionary radiations in the Hawaiian Islands across all flies: Campsicnemus (183 spp) and the Eurynogaster complex (66 spp). They also include a small radiation of Conchopus (6 spp). A handful of other...

["Entomology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.2299v1
68 downloads
441 views

Background. Bumble bees (Bombus spp.) are important wild and managed pollinators. There is increased interest in incorporating data on bumble bees into risk assessments for pesticides, but standardized methods for assessing hazards of pesticides in semi-field and...

["Ecology","Entomology","Environmental Sciences","Plant Science","Toxicology"]
doi:10.7717/peerj.2228

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