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 8 of 8 for “"antipredator behavior"”.
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Costs and benefits of Daphnia antipredator behavior and consequences on community stability
… energy flow caused by costs and benefits of antipredator defenses and to study their implications for community stability, I used the planktivorous fish - Chaoborus - Daphnia system. In the laboratory, I found that clonal variance of Daphnia antipredator defenses was high, and that …
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Variation in Behavior of Different Populations and Sex Classes of Paedomorphic Oklahoma Salamanders
… unique selection pressures that influence the behavior of individuals both within and among populations. Intrinsic differences in body size, age, sex, and reproductive status can contribute to behavioral variation among conspecifics. Environmental influences include predation pressure, resource …
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Social learning and its effect on conservation efforts in the Barrens Topminnow: an evaluation of conditioning and social learning as a viable longterm solution to evolutionary traps
… I 1) attempted to condition BTMs to exhibit antipredator behavior when faced with WMF, and 2) created a situation in which naive BTMs could potentially learn from conditioned individuals. I found no evidence of conditioning or of social learning, and there were no significant differences in …
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Variation in Defensive Behaviors of the Western Cottonmouth (Agkistrodon Piscivorus) as a Result of Temperature, Size, and Reproductive Condition
… predatory contexts. In snakes, defensive behaviors may be influenced by temperature, sex, body size, and reproductive state. In response to human antagonists, the cottonmouth (Agkistrodon piscivorus) exhibits a flight response followed by a range of defensive displays which increase with …
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Behavioral and Metabolic Responses of the Southern Red-Backed Salamander (Plethodon Serratus) to Predatory Stimuli: Influence of Body Size
… from predatory ringneck snakes on the foraging behavior and metabolic rates of P. serratus. Individuals were exposed to substrate cues from ringneck snakes, five-lined skinks (nonpredator), and dechlorinated water. In the foraging study, I also examined the response to airborne cues. Larger …
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The neuroendocrine and molecular mechanisms underlying stress-induced maternal effects in the threespine stickleback
… for survival, including growth, morphology, and behavior. In fact the exposure of mothers to an ecologically relevant stressor such as a non-lethal predator attack can alter the life-long offspring physiological and behavioral response to the same stressor. The transfer of information about the …
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Phenotypic consequences of adaptive toxin production and resistance in coevolutionary partners
… performance by measuring speed, endurance, and antipredator behavior in three Thamnophis species with an array of Nav genotypes and corresponding resistance phenotypes. We predicted that resistant snakes with weaker underlying skeletal muscles would be slower, with lower endurance, and they …