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 18 of 18 for “"Behavioral variation"”.
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A TEST OF GENERAL STRAIN THEORY: EXPLORING GENDER SPECIFIC EMOTIONAL AND BEHAVIORAL VARIATION
… and a series of t-tests were used to determine variations in male and female emotional and behavioral responses to strain. The results of this analysis suggest that certain types of strain influence which type of delinquency males and females will pursue and that the intervening effect of …
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A TEST OF GENERAL STRAIN THEORY: EXPLORING GENDER SPECIFIC EMOTIONAL AND BEHAVIORAL VARIATION
… and a series of t-tests were used to determine variations in male and female emotional and behavioral responses to strain. The results of this analysis suggest that certain types of strain influence which type of delinquency males and females will pursue and that the intervening effect of …
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Factors Affecting Behavioral Variation of Individual Glaucous-Winged Gulls (Larus Glaucescens) While on Territory
<p>Factors affecting the patterns of behavior of individual Glaucous-winged Gulls <em>(Larus glaucescens)</em> on Protection Island, Jefferson County, Washington were examined. Males were found to be present on territory often than females. Proportions of behavior varied by time of season. Gulls …
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Patterns, maintenance and the evolution of behavioral variation and covariance: the presence of personalities in kangaroo rats
My dissertation examined patterns of variation and covariation among multiple behaviors in Merriam's kangaroo rats (Dipodomys merriami). I also examined the mechanisms that may be responsible for the maintenance of variation within and between natural populations of D. merriami and investigated the …
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Natural Variation and Gene Expression in the Male Courtship Progression of Drosophila Melanogaster
Natural genetic variation in the temporal sequence of male courtship behavior can be one target of selection. The goals of this research were to identify variation in the sequence of male behavior using a natural population, and investigate the genetic underpinnings of this variation. A new, …
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The Effects of Descriptive Praise on Instructional Control Over Varied and Stereotyped Play of a Five-Year-Old Boy
… These findings suggest stimulus control of behavioral variation and behavioral consistency. The implications for both science and society are discussed.
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Associated behavioral, genetic, and gene expression variation with alternative life history tactics in salmonid fishes
… and often reflect underlying genetic variation. My research focuses on three objectives related to individual level variation: 1) evaluating the innate behavioral variation within and between individuals, families, and progeny of different life-history types across time; 2) testing for …
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Variation in Behavior of Different Populations and Sex Classes of Paedomorphic Oklahoma Salamanders
… sex, and reproductive status can contribute to behavioral variation among conspecifics. Environmental influences include predation pressure, resource availability, and abiotic variables such as temperature. I examined paedomorphic Oklahoma salamanders (Eurycea tynerensis) from two spatially …
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Variation in shoaling behavior in lake Mývatn threespine stickleback in relation to temperature and origin
Behavioral variation within populations has the potential to facilitate local adaptation and population divergence. The threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn is an ideal candidate to study such local adaptations. Threespine stickleback diverge in their morphology and …
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Social context shapes individual variation in behavior, learning, and neural gene expression in a swordtail fish
… behavior, yet how sociality affects individual variation in behavior, cognition, and its neural underpinnings is not well understood. Here, we characterized cognitive and behavioral variation as a function of social context in male and female El Abra swordtails (Xiphophorus nigrensis), a species …
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Molecular Population Genetics of the Atlantic Sand Fiddler Crab, Uca Pugilator, Along the Atlantic Coast
… However a large amount of morphological and behavioral variation is found between northern and southern populations along the eastern coast. This study was undertaken to determine the population genetic structure of U. pugilator and to determine whether these differences may have a genetic …
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Neural Circuit Mechanisms Underlying Behavioral Evolution in Drosophila
… define how males endow 7,11-HD with the opposite behavioral valence to underlie species discrimination. We first show that D. melanogaster and D. simulans males detect 7,11-HD using the homologous peripheral sensory neurons, but this signal is differentially propagated to the P1 neurons that …
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Genetic Variation in Neurotransmitter Receptors Generates Behavioral Diversity
<p>Variation in behavior among individuals is both remarkable and of great significance to society. People differ in locomotor skills, in sleep patterns, in their willingness to take risks, and in how they relate to other people. Whereas diversity enriches society, extreme behavioral deviations can …
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Effects of a Riverine Dispersal Barrier on Cultural Similarity in Wild Bornean Orangutans (Pongo Pygmaeus Wurmbii)
… have focused on demonstrating the existence of behavioral variants across study sites, armed only with an assumption that ecological and genetic alternatives are unlikely to sufficiently explain observed geographic variation in behavior. Moreover, previous studies have reported the presence of …
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The Molecular Evolution of the Serotonin System in Macaques (MACACA): a Detailed Survey of Four Serotonin-Related Genes
… great potential to inform our understanding of behavioral evolution. I seek to address this gap in knowledge by investigating the molecular evolution of the serotonin system in macaques (genus Macaca). The macaque genus represents a useful model for understanding behavioral evolution. Comprised …
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The individual and collective behavior of social organisms across environments
… conditions, and this diversity can drive behavioral variation. For group-living organisms, this variation is present at both the individual and the collective levels, with individual behavioral phenotypes and interactions among individuals driving collective behavior. However, gaps remain …
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Genomic response to selection for behavior
… humans. Today, the two lines exhibit stark behavioral differences known to have a genetic basis. The short time period that has elapsed since the beginning of fox farming (125 years) also renders the fox a potential model for the genomic response to the process of domestication. However, the …
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Testing models of the adaptive evolution of consistent individual differences in behavior using sticklebacks
… imply that individuals are rigid in their behavioral expression, but rather that each individual can only display a subset of the potential total behavioral variation. Therefore explaining these consistent individual differences in behavior is a recent challenge for evolutionary biology in …