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 17 of 17 for “"dominance rank"”.
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Play and development of social skills in infant rhesus macaques
… social organization: genetic relationship, dominance rank, and the long birth season, were investigated for their relationship to the development of playful and socially skilled behaviours. Twenty infants from one social group on Cayo Santiago, Puerto Rico, were observed using a focal animal …
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Male Mating Success in Lemur catta
Dominance rank of males, number of males present during mating and harassment and interruption of mating were each examined to see how they impact male mating success. This study was conducted on four groups of ring-tailed lemur (Lemur catta) at Berenty Reserve, Madagascar, with data collected over …
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How the Outside Gets in: Linking Social and Physical Environments with Physiology and Body Size in Wild Baboons
… work, I study how two environmental factors – dominance rank and early-life conditions – are associated with growth and physiology. My colleagues and I test these links in a population of wild baboons studied by the Amboseli Baboon Research Project. The Amboseli Baboons Research Project has …
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Love, hatred and indifference in chimpanzees: Personality, Subjective Well-Being, and dyadic-level behavior in captive chimpanzees (Pan troglodytes): Does something more than rank, age and sex drive the nature of interpersonal relationships in chimpanzees?
… subjective well-being (SWB) across ten years. Dominance rank, and the Dominance and Extraversion Factors significantly correlated between time points. In the second study, I investigated the impact of personality, SWB, and demographic characteristics on individual variation in dyadic-level …
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Sexual Signaling in Male Vervet Monkeys (Chlorocebus Pygerythrus); Influences of Hormones, Behaviour, and Parasitism on Scrotal and Penile Skin Colouration
… colour of males is influenced by parasites, dominance rank, age, androgens and glucocorticoids. Our results indicate that blue scrotal colour between males is predicted by rank and parasites, and red penis colour is predicted by age (or sexual maturity) and parasites. Within males, our …
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Mother-Offspring Relationships in Tibetan Macaques (<i>Macaca thibetana</i>) at Mt. Huangshan, China
… mother (i.e., age, parity, matriline size, and dominance rank) and offspring (i.e., age and sex). From these results, I concluded from mother and offspring perspectives that maternal investment biased female offspring.</p>
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The Examination of Enrichment Using Space and Food for African Elephants (Loxodonta Africana) at the San Diego Zoo Safari Park
… behavior of thirteen African elephants, whose dominance structure was ascertained by the handlers at the San Diego Zoo Safari Park (SDZSP). This facility has two exhibits of approximately equal size. Three treatments were created to assess the effects of food and space enrichment: (1) access to …
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The Relationship of Dominance, Reproductive State and Stress in a Non-Cooperative Breeder, The Domestic Horse (<em>Equus caballus</em>)
… group are often organized in a hierarchy with rank determining access to resources. Maintaining a dominant position requires a high rate of energetically expensive aggressive displays and physical exertion. Lab based winnerloser studies, often conducted with individuals from non-social species, …
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FEMALE COMPETITION AND THE ROLE OF TESTOSTERONE IN A POLYGYNOUS SYSTEM
… over two agonistic bouts per hour, and higher-ranking females initiated more agonism than lower-ranking females. Testosterone appeared to play an important role in competitive ability. Immunoreactive fecal testosterone metabolites (fT) were strongly positively correlated to both dominance rank …
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FEMALE COMPETITION AND THE ROLE OF TESTOSTERONE IN A POLYGYNOUS SYSTEM
… over two agonistic bouts per hour, and higher-ranking females initiated more agonism than lower-ranking females. Testosterone appeared to play an important role in competitive ability. Immunoreactive fecal testosterone metabolites (fT) were strongly positively correlated to both dominance rank …
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The effects of dietary forage, social hierarchy, and stocking density on stress in lactating cows during relocation
… before and after relocation and evaluated for dominance rank. In experiment three, 44 cows were housed together before relocation, then in pens of varying stocking density (0.67, 0.83, 1.0, or 1.17 cows per stall) post-move. In these studies, the effects of treatment on MY, lameness, behaviors, …
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Paternity and father-offspring relationships in wild chimpanzees, Pan troglodytes schweinfurthii.
… of male reproductive success relative to dominance rank and the priority of access model, as well as fathers' mating strategy and age. Then in Chapter 2, I examined whether fathers showed parental investment in their juvenile and adolescent sons. Finally, in Chapter 3, I investigated …
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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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Life history, growth and dental development in young primates: a study using captive rhesus macaques
… her age and maturity also have an effect. The dominance rank of the mother is related to patterns of pre- and early post-natal investment. Infant suckling and feeding behaviour are related to cranial development in males, and the size of the infant in relation to the mother may be important in …
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Infant and Juvenile-Directed Care Behaviors in Adult Toque Macaques, Macaca Sinica
… investment in young. There is no evidence that dominance rank influences offspring sex, but high-ranking mothers provide more care to newborn infants than do low-ranking mothers. Mothers provide more care to infant and first year sons than to daughters. This supports Dittus's suggestion (1979, …
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Wintering white-throated sparrows (Zonotrichia albicollis): home ranges, aggression and corticosterone
… philopatric territorial flocks. Flocks exhibit dominance hierarchies, with dominance rank associated with an individual's age and prior residence in the territory. Although social behaviors within flocks are well studied, few studies have described winter home ranges. I tagged white-throated …
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Individual, Social, and Environmental Factors Associated with Patterns of Parasitic Infection in Capuchin Monkeys (Cebus imitator)
… host sociality (e.g., host group size, kinship, dominance rank, etc.), and environmental factors (e.g., climate and habitat composition) all work independently and in tandem to affect both a host’s chance of encountering a parasite and its susceptibility to infection by that parasite. In this …