Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Prey behavior"”.
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OPTIMIZING THE BIOLOGICAL CONTROL OF INVASIVE INSECTS: EVALUATING NATURAL ENEMY HOST SPECIFICITY, PREY BEHAVIOR, AND VIBRATIONAL COMMUNICATION
… potential impact on non-target species, the behaviors of these exotic parasitoids were also tested on the traces of the cosmopolitan stink bug Nezara viridula. The exposure of singular female parasitoids to contact kairomones of both pests elicited modifications in orthokinetic and locomotory …
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Shore-level size gradients in Tegula funebralis (A. Adams) : seasonal changes influenced by interaction of predator preference and prey behavior
… preference for larger snails and a withdrawal behavior that favors the escape of smaller snails after capture by a seastar . Experimental addition of p. ochraaceus in winter causes changes in the intertidal distribution of T. funebralis similar to those observed during the summer increase in …
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The roles of brook trout and larval two -lined salamanders as predators in streams
… predation studies are 3 models that address prey movement, prey behavior, and spatial scale. To analyze the relevance of the models, I compared the predator impact for each taxon with its propensity to drift, relative (trout vs. fishless streams) propensity to drift, and trout predation rate. …
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Macroinvertebrate Response to Management Strategies and Habitat Condition at Kealia Pond NWR, Maui, Hawaii
… structure and tilapia were no strongly prey-size selective. However, food availability and prey behavior influenced tilapia predation rates because corixid densities decreased at faster rates than chironomid densities in enclosures. The information is the basis for providing guidance on …
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
Predators can have large effects on prey populations and on the structure and function of communities. In addition to direct consumption of prey, predators often cause prey to alter their foraging behavior, habitat selection, and morphology. These non-lethal effects of predators can propagate to …
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The Effect of Aposematic Coloration on the Food Preference of Aphelocoma coerulescens, the Florida Scrub Jay
… warning to predators to avoid attacking specific prey. This coloration is conspicuous in nature, with one of the most common examples being a red and black pattern. The plant Abrus precatorius exhibits this warning signal in its seeds, which resemble lady beetles and contain the concentrated toxin …