Search Results - "Snyder, W E"

Polyphagy Complicates Conservation Biological Control That Targets Generalist Predators by Prasad, R. P., Snyder, W. E.

“…1. While evidence suggests that undisturbed refuges within agricultural fields conserve natural enemies, few studies have examined whether pest control does…”
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Arthropod Pests and Predators Associated With Bittersweet Nightshade, a Noncrop Host of the Potato Psyllid (Hemiptera: Triozidae) by Carrillo, C. I. Castillo, Fu, Z, Jensen, A. S, Snyder, W. E

“…Bittersweet nightshade (Solanum dulcamara L.) is a key noncrop host of the potato psyllid (Bactericera cockerelli Šulc), proposed to be a source of the…”
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Contrasting Trophic Cascades Generated by a Community of Generalist Predators by Snyder, William E., Wise, David H.

“…We examined whether intraguild predation (IGP) weakens the ability of two taxa of generalist predators, carabid beetles and lycosid spiders, to control…”
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Shifts in species interactions and farming contexts mediate net effects of birds in agroecosystems by Olimpi, E. M., Garcia, K., Gonthier, D. J., De Master, K. T., Echeverri, A., Kremen, C., Sciligo, A. R., Snyder, W. E., Wilson-Rankin, E. E., Karp, D. S.

“…Some birds are viewed as pests and vectors of foodborne pathogens in farmlands, yet birds also benefit growers by consuming pests. While many growers seek to…”
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Identity, Abundance, and Phenology of Anagrus spp. (Hymenoptera: Mymaridae) and Leafhoppers (Homoptera: Cicadellidae) Associated with Grape, Blackberry, and Wild Rose in Washington State by Prischmann, D. A, James, D. G, Storm, C. P, Wright, L. C, Snyder, W. E

“…In 2001 and 2002, we monitored densities of western grape leafhopper, Erythroneura elegantula Osborn, and Virginia creeper leafhopper, Erythroneura ziczac…”
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Generalist Predators Disrupt Biological Control by a Specialist Parasitoid by Snyder, William E., Ives, Anthony R.

“…Two broad classes of arthropod natural enemies attack insect herbivores: specialists and generalists. The tight dynamical linkage of specialist natural enemies…”
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Nutritional Benefits of Cannibalism for the Lady Beetle Harmonia axyridis (Coleoptera: Coccinellidae) When Prey Quality is Poor by Snyder, William E, Joseph, Sarah B, Preziosi, R. F, Moore, Allen J

“…Cannibalism, a widespread phenomenon in nature, can both reduce competitors and introduce a high-quality food into the cannibal’s diet. We investigated the…”
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Effects of Generalist Phytoseiid Mites and Grapevine Canopy Structure on Spider Mite (Acari: Tetranychidae) Biocontrol by Prischmann, D. A, James, D. G, Wright, L. C, Snyder, W. E

“…Specialist-feeding phytoseiid mites have a well-documented role in biological control of phytophagous spider mites. However, although there is evidence for the…”
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Species identity dominates the relationship between predator biodiversity and herbivore suppression by Straub, Cory S., Snyder, William E.

“…Agricultural pest suppression is an important ecosystem service that may be threatened by the loss of predator diversity. This has stimulated interest in the…”
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Interactions between Specialist and Generalist Natural Enemies: Parasitoids, Predators, and PEA Aphid Biocontrol by Snyder, William E., Ives, Anthony R.

“…Most biological control systems involve a diverse community of natural enemies. We investigated how specialist and generalist natural enemies differ as…”
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Cannibalizing Harmonia axyridis (Coleoptera: Coccinellidae) larvae use endogenous cues to avoid eating relatives by Joseph, S B, Snyder, W E, Moore, A J

“…Cannibalism is widespread among many different organisms, and can have both negative and positive fitness consequences. Avoiding eating relatives can minimize…”
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Cannibalism Reverses Male-Biased Sex Ratio in Adult Mantids: Female Strategy against Food Limitation? by Hurd, L. E., Eisenberg, R. M., Fagan, W. F., Tilmon, K. J., Snyder, W. E., Vandersall, K. S., Datz, S. G., Welch, J. D.

“…Adult populations of the mantid, Tenodera sinensis (Saussure) initially were male-biased, but females outnumbered males by the end of the life cycle because…”
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Alternative prey disrupt biocontrol by a guild of generalist predators by Koss, A.M., Snyder, W.E.

“…We examined the potential of a guild of generalist predators to control Colorado potato beetles (“CPB,” Leptinotarsa decemlineata) on potato. We were…”
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Egg-hatch phenology and intraguild predation between two mantid species by Snyder, W.E, Hurd, L.E. (Delaware Univ., Newark (USA). School of Life Sciences. Ecology Program)

“…Relative timing of egg hatch between two co-occurring, congeneric mantids, Tenodera angustipennis and T. sinensis, was experimentally manipulated in replicated…”
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Intraguild predation and successful invasion by introduced ladybird beetles by Snyder, William E, Clevenger, Garrett M, Eigenbrode, Sanford D

“…Introductions of two ladybird beetle (Coleoptera: Coccinellidae) species, Coccinella septempunctata and Harmonia axyridis, into North America for aphid…”
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Performance evaluation of filtered backprojection reconstruction and iterative reconstruction methods for PET images by Wang, Cliff X, Snyder, Wesley E, Bilbro, Griff, Santago, Pete

“…The filtered backprojection (FBP) algorithm and statistical model based iterative algorithms such as the maximum likelihood (ML) reconstruction or the maximum…”
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Chiari III malformation treated with CSF diversion and delayed surgical closure by Snyder, Jr, W E, Luerssen, T G, Boaz, J C, Kalsbeck, J E

“…Chiari III malformations are extremely rare hindbrain malformations that are associated with a high early mortality rate, or severe neurologic deficits in the…”
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Pymetrozine Causes a Nontarget Pest, the Colorado Potato Beetle (Coleoptera: Chrysomelidae), to Leave Potato Plants by Chang, G C, Snyder, W E

“…Pymetrozine is a selective insecticide that targets aphids. Published assessments of the effects of pymetrozine on nontarget organisms focus mainly on…”
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Sex-Based Differences in Antipredator Behavior in the Spotted Cucumber Beetle (Coleoptera: Chrysomelidae) by Williams, Jennifer L, Snyder, William E, Wise, David H

“…Adult females of many arthropods require high food intake for producing eggs, whereas males feed less and spend more time searching for mates. If males and…”
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Pymetrozine Causes a Nontarget Pest, the Colorado Potato Beetle (Coleoptera: Chrysomelidae), to Leave Potato Plants by Chang, G. C, Snyder, W. E

“…Pymetrozine is a selective insecticide that targets aphids. Published assessments of the effects of pymetrozine on nontarget organisms focus mainly on…”
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