Search Results - "OLMSTEAD, K. L"

Density-related migration in planthoppers (Homoptera: Delphacidae): the role of habitat persistence by Denno, R.F. (University of Maryland, College Park, MD), Roderick, G.K, Olmstead, K.L

“…We investigated the selective pressures associated with the possession of wings and migration in wing-dimorphic planthoppers (Homoptera: Delphacidae). Both…”
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Effectiveness of tortoise beetle larval shields against different predator species by Olmstead, Karen L., Denno, Robert F.

“…Larvae of the tortoise beetles Charidotella bicolor and Deloyala guttata carry shields formed from exuviae and feces over their bodies that are though to…”
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Role of enemy-free space and plant quality in host-plant selection by willow beetles by Denno, Robert F., Larsson, Stig, Olmstead, Karen L.

“…Phratora vitellinae and Galerucella lineola are two leaf beetles that feed on willows (Salix) in central Sweden. When disturbed, larvae of P. vitellinae exude…”
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Role of Vision and Antennal Olfaction in Habitat and Prey Location by Three Predatory Heteropterans by Freund, Rebecca L, Olmstead, Karen L

“…We studied the importance of vision and antennal olfaction in the location of habitat, prey patches within habitats, and the close-range orientation to prey…”
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Influence of Prokelisia planthoppers on amino acid composition and growth of Spartina alterniflora by OLMSTEAD, K. L, DENNO, R. F, MORTON, T. C, ROMEO, J. T

“…The effects of feeding by the planthopper Prokelisia dolus on its hostSpartina alterniflorawere examined under conditions of both high and low plant-nitrogen…”
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The Roles of Vision and Antennal Olfaction in Enemy Avoidance by Three Predatory Heteropterans by Freund, Rebecca L, Olmstead, Karen L

“…We examined the relative importance of vision and antennal olfaction in enemy avoidance by three heteropterans. Jumping spiders (Phidippus spp.) served as…”
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Insect phenology mediated by host-plant water relations by Wood, T.K. (University of Delaware, Newark, DE), Olmstead, K.L, Guttman, S.I

“…Water relations of host plants modify Enchenopa binotata life histories by mediating the termination of egg dormancy, thereby promoting synchronization of egg…”
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AN EXPERIMENTAL STUDY OF INTRASPECIFIC VARIATION, DEVELOPMENTAL TIMING, AND HETEROCHRONY IN FISHES by Mabee, Paula M, Olmstead, Karen L, Cubbage, Carol C

“…Heterochrony is widely regarded as an important evolutionary mechanism, one that may underlie most, if not all, morphological evolution, yet relatively few…”
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Evidence for a Proximate Influence of Winter Temperature on Metabolism in Passerine Birds by Swanson, David L., Olmstead, Karen L.

“…The roles of ultimate and proximate factors in regulating basal and summit metabolic rates of passerine birds during winter have received little study, and the…”
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Sensory Mediation of Aggregation among Postmetamorphic Bufo cognatus by Graves, Brent M., Summers, Cliff H., Olmstead, Karen L.

“…Quantification of toad spatial distributions confirmed that postmetamorphic Bufo cognatus form aggregations under natural conditions in southeastern South…”
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The Effect of Clutch Size and Ant Attendance on Egg Guarding by Entylia Bactriana (Homoptera: Membracidae) by Karen L. Olmstead, Thomas K. Wood

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Effects of Host-Plant Distribution on Genetic Structuring of Two Tortoise Beetles (Coleoptera: Chrysomelidae: Cassidinae) in the Northern Great Plains by Britten, H B, Macclure, A R, Tyler, A M, Kattan, AD, Olmstead, K L

“…Physonota helianthi Randall feeds exclusively on a native sunflower, Helianthus grosseserratus Martens, in southeastern South Dakota. Helianthus grosseserratus…”
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Insect Phenology Mediated by Host-Plant Water Relations by Wood, T. K., Olmstead, K. L., Guttman, S. I.

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Effects of Host-Plant Distribution on Genetic Structuring of Two Tortoise Beetles (Coleoptera: Chrysomelidae: Cassidinae) in the Northern Great Plains by Britten, Hugh B, Macclure, Adam R, Tyler, Amber M, Kattan, Anna D, Olmstead, Karen L

“…Physonota helianthi Randall feeds exclusively on a native sunflower, Helianthus grosseserratus Martens, in southeastern South Dakota. Helianthus grosseserratus…”
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