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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 457 for “"Primates"”.
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Descending Locomotion in Primates
<p>Primates are an order of mammals that lack claws. Therefore, arboreal primates must apply opposing pressures with their digits to grasp supports and move through their habitats. This requirement may affect the mechanics of specific aspects of arboreal travel, such as descent, in the locomotion …
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Environmental Enrichment for Gummivorous Primates
… that study the feeding behavior of wild primates report that many haplorhine and strepsirhine species consume the gum exuded from trees. These gum feeding primates include, but are not limited to, some of the Lemuridae, Galagidae, Callitrichinae, and Cercopithecinae. Although gum plays …
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Neuroethology of Social Attention in Primates
… we explored the ability of human and nonhuman primates to follow the attention of other individuals. First, we characterized natural gaze-following behavior using a novel telemetric device in socially-interacting prosimian primates, and later in monkeys and humans responding to gaze cues in the …
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Nodes for primates: a fictional manifesto
Humans find themselves in increasingly isolated conditions and locked into interaction with mechanical devices. In order to survive in this environment we must question what it is to live at the end of the 20th century. What are we to do if our worst fears for the future come true and what …
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Conservation of vervets, Africa’s most ubiquitous primates
… CITES-reported international trade in individual primates of African origin, accounting for 35% of captive-bred trade and 51% of wild-caught. Although hunting only accounts for 3% of wild-caught trade, it has been increasing, particularly over the last decade. Baboons and vervets dominated with …
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Molecular evolution of primates - featuring mobile elements
Mit mindestens 66 Gattungen und über 350 Spezies ist die Diversität der Ordnung der Primaten eine der größten innerhalb der Säugetiere. Obwohl die phylogenetischen Beziehungen von den Hauptlinien geklärt sind, finden sich innerhalb der Familien immer noch viele ungeklärte und umstrittene Fälle. In …
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Evolution of the blood microbiome in primates
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Behavioral Mechanisms of Δ9-THC in Nonhuman Primates
… established in one laboratory using New World primates (squirrel monkeys). In Chapter 2, THC and the synthetic cannabinoid agonist CP55,940 were made available for SA in Old World monkeys, a species more closely related to humans, by using similar parameters deemed successful in squirrel …
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Ecological Pressures Selecting for Singing Behavior in Primates
… on the evolution of elaborate vocalizations in primates. The goals of this project were to merge and test hypotheses derived from both the primate morphological origins literature and the musical behavior origins literature. Theoretical elements from the leaping and arboreal hypotheses from the …
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Morphogenesis of the lateral geniculate nucleus in primates
The lateral geniculate nucleus (LGN) is the part of the mammalian visual system that relays information from the eye to the cerebral cortex. In the rhesus macaque monkey, the LGN exhibits an intricate lamination pattern, which changes midway through the nucleus at a point coincident with small gaps …
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Network theory analysis of ethanol self-administering nonhuman primates
… to animal models, particularly nonhuman primates (NHPs). NHPs are considered a powerful translational tool that bridge basic science and clinical studies. They are also useful because the morphology of their cerebral cortex is similar to humans. In this work, a network processing pipeline …
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Investigations of polymorphic colour vision in new world primates
Primate colour vision in New World primates is intriguingly complex; show a polymorphism where males are obligatory dichromats (i.e. perception similar to colour-blind humans that cannot differentiate red from green) Females can be either dichromats or trichromats (vision similar to normal humans). …
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Cortical Control of Naturalistic Facial Expression Production in Primates
… class of social communication signals in primates. Nonverbal expressions shared between individuals can instantly and effortlessly communicate endogenous affective state, the valence of external stimuli, as well as more complex concepts such as intentions, social rank, and receptivity to …
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Visual attention in primates and for machines - neuronal mechanisms
Visual attention is an important cognitive concept for the daily life of humans, but still not fully understood. Due to this, it is also rarely utilized in computer vision systems. However, understanding visual attention is challenging as it has many and seemingly-different aspects, both at …
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Os saguis do gênero Leontopithecus Lesson, 1840 (Callithricidae - Primates)
The systematic position of the forms of Leontopithecus Lesson,1840, is reviewed, with comments on the taxonomic history and genetic affinities of the representatives of this genus. Morphological aspects are described as well as the first and only known case of hybridization between two forms of the …
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Using primates to establish priority conservation sites in Mexico.
… are several threatened species, including two primates present in the region (Ateles geoffroyi and Alouatta palliata). The main aim of this project was to identify areas most suited to biodiversity protection and conservation based on primate distribution. This was achieved through the …
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