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 11 of 11 for “"optimal foraging theory"”.
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Examining financial puzzles from an evolutionary perspective
… hypothesis, applications from risk-sensitive optimal foraging theory, and the cheater detection hypothesis. Next we introduce some of the most-researched puzzles in the finance literature. Examples include overreaction, loss aversion, and the equity premium puzzle. Following this, we discuss …
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Fine-Scale Foraging Behavior of Humpback Whales Megaptera novaeangliae in the Near-Shore Waters of the Western Antarctic Peninsula
… tools were used to examine the fine-scale foraging behaviors of humpback whales (Megaptera novaeangliae) in the coastal waters of the Western Antarctic Peninsula during the austral autumn of 2009 and 2010. Discrete feeding events (i.e., lunges) were inferred from the biologging records of …
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Oystercatchers and cockles : a predatory-prey study
… cockles increased with their size. According to optimal foraging theory, these larger ones should therefore have been preferred, and this proved to be so. The rate at which oystercatchers ate cockles followed a type II functional response. The plateau was not caused solely by handling time, nor …
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The Cost of Capturing Prey: Measuring Largemouth Bass Foraging Activity Using Glycolytic Enzymes (Lactate Dehydrogenase)
<p>Optimal foraging theory predicts that predators choose prey based on size, morphology, and behavior that maximizes the net energy gained per time spent foraging. For prey choice to be optimal, the ratio of energy gained to energy expended should be maximized. Activity costs associated with …
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The role of stochastic resonance and physical constraints in the evolution of foraging strategy
… study of the optimization of this process: foraging within a single, finite food patch for a limited amount of time. The work is an example of the computational algorithms of statistical physics being applied to the ecological field of foraging behavior. The analysis begins with an …
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A RATE COMPARISON MODEL OF CONCURRENT SCHEDULE PERFORMANCE
… model of concurrent schedule performance and foraging is proposed. The model is a molecular equalizing theory of matching, based on results from optimal foraging theory and corresponding data from behavioral ecology. It state that animals leave one concurrent alternative for another whenever …
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The effects of individual-level differences in metabolic rate on foraging behavior and life history traits in honeybees
… rate and life history is primarily mediated via foraging, which shapes the energy acquisition patterns of an individual. This predicts that individuals with different metabolic rates likely vary in their foraging strategies, although such links have rarely been empirically investigated in the …
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Investigations of the Trophic Relationships, Feeding Ecology and Feeding Behavior of Larval Spot, <i>Leiostomus Xanthurus</i> Lacepede, and Atlantic Croaker, <i>Micropogonias Undulatus</i> (Linnaeus) (Pisces:Sciaenidae)
… were in accordance with predictions made by optimal foraging theory and two other food selection models.</p> <p>The feeding incidence of three age classes of Leiostomus xanthurus, on the rotifer Brachionus plicatilis, was investigated under six different spectral regimes (red, yellow, green, …
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Drinking from the Magic Well: Studies on Honey Bee Foraging, Recruitment, and Sublethal Stress Responses using Waggle Dance Analysis
… bees by decreasing the availability of quality foraging resources. Importantly, waggle dance analysis provides a versatile and relatively cost-effective tool for investigating the obstacles that honey bees face, such as habitat loss, in our changing landscapes. While this emerging tool has …
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Sensory Ecology of Foraging in Bumblebees
… insects exhibit a complex behavior while foraging for nectar and pollen. Many studies have focused on ultimate mechanisms of this behavior, however, the sensory-perceptual processes that constrain such behavior have rarely been considered. In the present study I used bumblebees (Bombus …
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Spatial ecology and demography of eastern coyotes (Canis latrans) in western Virginia
Coyote (Canis latrans) range expansion in the Central Appalachian Mountains has stimulated interest in ecology of this predator and potential impacts to prey populations. This is particularly true in the Ridge and Valley Region in western Virginia where white-tailed deer (Odocoileus virginianus) …