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 20 of 85 for “"Foraging ecology"”.
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Seabird digestive physiology in relation to foraging ecology
… digestive processes to different diets and foraging methods, is investigated experimentally. Gut passage rates of different food types of tested in vitro digestibility may reflect dietary specialization, with favoured prey types excreted more rapidly than less frequently encountered prey. …
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Foraging ecology, sexual selection, and divergence in sunfish (Lepomis spp.)
… My research focused on the links between foraging ecology and both natural and sexual selection, and how these mechanisms interact to shape the phenotypic diversification of natural populations. Using bluegill (Lepomis macrochirus) and pumpkinseed sunfish (Lepomis gibbosus), I examined …
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The foraging ecology of the short-tailed shearwater puffinus tenuirostris.
… trophic interactions, resource requirements and foraging ecology of this wide ranging pelagic seabird. I studied the movement of adults during the short trip (ST) and long trip (LT) component of their dual foraging strategy to determine how they use their marine habitat. ST were primarily …
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Habitat Requirements and Foraging Ecology of the Madagascar Fish-Eagle
… its extinction. I investigated fish-eagle foraging ecology in 1996 to determine its prey preference and whether fish abundance and availability affect fish-eagle foraging rates and foraging success. Madagascar fish-eagle nest and perch trees were taller, broader, had more unobstructed …
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Piping plover (Charadrius melodus) foraging ecology in the Great Plains
… piping plover chick survival was limited by foraging site quality on the Missouri River. Productivity has historically varied among river reaches. The alkali wetlands, reported to be very productive, serve as an index to the upper limit of reproductive potential. We compared indices of …
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Polar Bear (Ursus Maritimus) Foraging Ecology in the Western Canadian Arctic
… top of the Arctic marine food web, polar bear foraging patterns can provide insights on ecosystem structure and function both spatially and temporally. This thesis used quantitative fatty acid signature analysis (QFASA) to estimate the diets, and adipose tissue lipid content to estimate the …
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Bycatch and foraging ecology of sea turtles in the Eastern Pacific
… sea turtles congregate in high numbers like in foraging grounds for loggerhead in Baja California, Mexico and for greens in Paracas and Sechura, Peru, calls for either gear modifications (which has not been that successful), change of gear, or areas closed for gillnets. </p><p>The second half of …
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The Sea is the Limit: Foraging Ecology of Breeding Antarctic Procellariiformes
… predators are expected to select profitable foraging areas, especially when provisioning young in addition to meeting their own energy needs. Knowing how and where animals choose to forage is not only important to advance ecological theory, but also to assess and mitigate the impact of …
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Responses of Python regius to animal chemosensory stimuli: Implications of foraging ecology
… odor molecules may elicit neither, one, or both foraging behaviors. A relationship has been described here for the first time between Prey Searching Behavior and Information Gathering Behavior.
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Foraging Ecology and Demography of Sternotherus Odoratus in a Southwestern Missouri Population
… few have addressed other aspects of its feeding ecology. The objectives of this study were three-fold: 1) to collect demographic data on a previously undocumented population, 2) to quantify the diet of this species in the western portion of its range, and 3) to determine if there are any seasonal …
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Nonbreeding Foraging Ecology of the Brown-headed Nuthatch (<i>Sitta pusilla</i>)
… a common behavioral strategy that may increase foraging efficiency and/or reduce predation threat. I surveyed mixed-species pine-savanna canopy flocks and recorded flocking and foraging behavior of Brown-headed Nuthatches (Sitta pusilla) in both natural conditions and following predator call …
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Fruit bat diet, foraging ecology and seed dispersal in the Vhembe Biosphere Reserve.
… grow. This study provides insight into the diet, foraging behavior, and ecosystem service of seed dispersal of fruit bat species in litchi orchards and natural habitats to advise on management strategies on how to reduce crop damage. It also assesses crop raiding by fruit bats and other crop …
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The foraging ecology and conservation of the Great Black-backed Gull Larus marinus
… species and advancing our knowledge of their foraging ecology is therefore fundamental to assess the health of populations, identify research priorities, and guide conservation efforts. Within this thesis, I use a range of analytical and practical approaches to garner information about a …
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Local impacts of White-nose Syndrome on the foraging ecology of insectivorous bats
… in dramatic population declines and shifting foraging niches. In Chapter 3, I investigate the effects of WNS, as well as prescribed fire and insect availability, on bat assemblage diversity and composition. Acoustic bat surveys and concurrent insect sampling were conducted at Mammoth Cave …
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