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 20 for “"Dominance hierarchy"”.
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Re-Evaluating Captive Chimpanzee “Dominance”: Dominance Hierarchy and Chimpanzee-Caregiver Relationships at Chimpanzee Sanctuary Northwest
… this thesis describes and statistically analyzes dominance relationships in two nonhuman primate groups with novel methods, possible correlations between dominance and testosterone, and uncovers the prominent connection of caregivers to captive chimpanzee social networks. Chapter I addresses …
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Tradition And Satisfaction: The Mob And Lynching In The Georgian Cotton Belt, 1890-1899
… for their place in the established social hierarchy, we gain insight into why they fought so adamantly to protect it. Furthermore, expanded understanding aids in formulating explanations for why they felt so entitled to occupy the peak of the sociocultural dominance hierarchy. This analysis …
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Food-getting Behavior as a Function of Dominance-distance in Four Mongrel Dogs
Food-getting behavior as a positive function of dominance-distance in two female and two male mongrel dogs was assessed in paired-feeding situations. The dominant subject was defined as the subject which gained access first to a food hopper in paired food-getting situations. Six unique pairings of …
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Socioecology of Adult Female Vervet Cercopithecus Aethiops and Patas Monkeys Erythrocebus Patas in Kenya: Food Availability, Feeding Competition, and Dominance Relationships
The dominance hierarchy of female vervet and patas monkeys was similar when both used an A. drepanolobium woodland habitat. Foods here were randomly and closely distributed in space and less abundant per feeding site compared to foods in the A. xanthophloea riverine habitat, a second habitat used …
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Mommy Issues: Do Differential Rearing Histories Affect the Social Behavior of Captive Chacma Baboons (<i>Papio ursinus</i>)
… the relationship between rearing history, dominance hierarchy, and social behavior. The Centre for Animal Rehabilitation and Education (C.A.R.E.) has utilized hand-rearing in the past and is currently using a surrogate-rearing method. Hand-rearing involves one or more primary caregivers …
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Mathematical modelling of dominance hierarchies
In this research we analyse the formation of dominance hierarchies from different viewpoints and various models of dominance hierarchy formation have been proposed, one important class being winner--loser models and another being Swiss tournaments. We start by understanding the structure of …
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The social organisation and behaviour of the striped field-mouse Rhabdomys Pumilio (Sparrman 1784) : studies in captivity and in the field
… that the social organisation was based on a male dominance hierarchy, with the development of territory in the dominant male and breeding females. The level of testosterone in males was found to be a reliable index of social status. Analysis of spatial relationships and behavioural interactions …
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Interrogation of Changes in Cell State during Tumor Evolution of a Genetically Engineered Mouse Model of Lung Adenocarcinoma
… neoantigens and provide evidence for an antigen dominance hierarchy that creates competition between T cell responses to tumor neoantigens. Critically, we find that this hierarchy influences the functionality of CD8 T cells and describe novel differentiation trajectories that distinguish …
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Female Social Rank and Steroid Production in Semi-Free Ranging Lemur Catta on St. Catherines Island, Georgia
… these groups are characterized by female dominance, where females have priority over males for food, grooming, and space. Among females there is also a linear dominance hierarchy.<em> L. catta </em>have a strong matrilineal social core due to females staying within their natal group and …
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The social transmission of associative fear in rats : mechanisms and applications of fear conditioning by proxy
… of caged rats are indicators of a social dominance hierarchy and are predictors of the potency of social fear transmission. This method of fear learning conserves some of the pathways necessary for direct fear learning (e.g., lateral amygdala) but is unique in that it requires regions …
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The behavioural function of pheromones in crayfish
… which had previously fought to establish dominance, and artificially introducing urinary signals proved an effective bioassay for investigating the mechanisms of dominance hierarchy formation. Urine from the dominant male was the key factor in establishing dominance relationships. In the …
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Sex, pheromone and aggression in Norway lobster (Nephrops norvegicus) : for a better future of scampi
… However, only in fights with males a clear dominance relationship was maintained. Males and females recognise the higher status of their male opponent. Blocking of urine release showed that chemical communication by urinary signals is important in maintaining dominance relationships between …
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Geographical and temporal variation of biochemical and colour-pattern polymorphisms in the European moth, Noctua pronuba (L.).
… by a single locus, with three alleles in a dominance hierarchy. The expression of these alleles is influenced by sex with females lighter in colour than males. The aim of this work was to establish whether natural selection maintains variation in forewing colour and pattern to give a …
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Factors Influencing Darter Dispersal Patterns in the Upper Roanoke River Watershed, Virginia
… species. This finding suggests a size-based dominance hierarchy for habitat selection and occupancy in darters. Predation threat had only a minor effect on the probability of traversing inhospitable corridors, but experimentally introduced structural cover significantly elevated dispersal …
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Ecology of the eastern quoll dasyurus viverrinus, (Dasyrudae: Marsupialia)
… little social behaviour. Males formed a dominance hierarchy which was maintained by avoidance and submissive behaviour of sub-ordinates following agonistic encounters with dominants . Aggressive behaviour and activity levels in males increased during the mating season. Females exhibited …
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Ecology of the eastern quoll dasyurus viverrinus, (Dasyrudae: Marsupialia)
… little social behaviour. Males formed a dominance hierarchy which was maintained by avoidance and submissive behaviour of sub-ordinates following agonistic encounters with dominants . Aggressive behaviour and activity levels in males increased during the mating season. Females exhibited …
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Ant diversity across an elevational gradient; functional versus taxonomic perspectives in the Soutpansberg Mountains, South Africa
… the 5-year period of the study and 4) define a dominance hierarchy for ants species along the transect to describe variation of these dominance groups' abundance and distribution in space (elevation and habitat) and time (time of the day and season) and infer possible underlying processes …
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Behavioural ecology of the black-flanked rock-wallaby (Petrogale lateralis lateralis): Refuge importance in a variable environment
… its social organisation, and indicates a linear dominance hierarchy. There is little vocal communication, and instead the rock-wallabies appear to rely on both ritualised behaviour acts and chemical cues to exchange information about the physiological or behavioural state of the individual, thus …
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Nutrition, Hormones, Transcriptional Regulatory Networks and Division of Labor in Honey Bee Colonies
… strategy, or lose their position in a dominance hierarchy. In humans, chronic food deprivation early in life may lead to a propensity toward obesity and diabetes in later life (for an expanded and fully-referenced discussion of nutritionally-mediated phenotypic plasticity see Chapter …