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 172 for “"snakes"”.
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Ecology of Neotropical Arboreal Snakes and Behavior of New World Mollusk-Eating Snakes
… to explore the general ecology of arboreal snakes, the defensive behaviors of the snake community, and the diet of mollusk-eating snakes. I studied arboreal species to understand interspecilic relationships in several morphometric characters and to examine preferences in habitat. There were …
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Studies of Kansas water snakes
Thesis (M.A.)--University of Kansas, Zoology, 1929.
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Osteology of the worm snakes (Carphophis)
… Carphophis to Calamaria, a genus of fossorial snakes found in Indo-Malayan forests.
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A phyletic analysis of viperine snakes
… the problem of cladistic relationships among snakes currently assigned to the subfamily Viperinae, using characters drawn from the internal and external anatomy of preserved museum specimens, and elements of the methodology known as cladistic or phyletic analysis.
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Flood Survival Strategies of Overwintering Snakes
… understanding of ecophysiology of hibernation in snakes. In chapter two, I introduce a winter habitat model of a subterranean space that remains flood and frost-free, referred to as the “life zone,” where snakes survive winter. I analyzed 11- winters of hibernation habitat data and 18-yrs of …
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Attitudes and Perceptions Towards Snakes: Informing Conservation Education
Public aversion to snakes poses a challenge to conservation efforts. This study explored how sociodemographic factors, emotional responses, and personal experiences influence attitudes toward snakes and willingness to engage in conservation education programs. A quantitative survey of 369 Canadian …
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Longitudinal variation in the axial muscles of snakes
The axial muscles of snakes are notable for having long tendons within individual segments that span several vertebrae. Consequently, muscles that extend anteriorly have a constraint on their length as their origins are located closer to the skull. However, this and other aspects of longitudinal …
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Flying snakes: Aerodynamics of body cross-sectional shape
Chrysopelea paradisi, also known as the flying snake, possesses one of the most unique forms of aerial locomotion found in nature, using its entire body as a dynamic lifting surface without the use of wings or membranes. Unlike other airborne creatures, this species lacks appendages to aid in …
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Physical mechanisms of control of gliding in flying snakes
Flying snakes possess a sophisticated gliding ability with a unique aerial behavior, in which they flatten their body to make a roughly triangular cross-sectional shape to produce lift and gain horizontal acceleration. Also, the snakes assume an S-like posture and start to undulate by sending …
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Dynamic Gap-Crossing Movements in Jumping and Flying Snakes
… group of arboreal inhabitants are the flying snakes (Chrysopelea). This species is able to use a dynamic "J-loop" movement to launch its glides, but it is not known whether it is also capable of using such jumps to cross smaller gaps between tree branches. This dissertation addresses this …
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The Dynamics of Non-Equilibrium Gliding in Flying Snakes
… addresses the question, how and why do 'flying' snakes (Chrysopelea) undulate through the air? Instead of deploying paired wings or wing-like surfaces, flying snakes jump, splay their ribs into a bluff-body airfoil, and undulate through the air. Aerial undulation is the dominant feature of snake …
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Newly discovered fossils provide novel insights on Cenozoic neotropical snakes
Las serpientes son un grupo de reptiles escamados con una enorme diversidad en el Neotrópico. Sin embargo, el registro fósil de estos vertebrados es escaso en el norte de Sur América. Aquí describo algunos fósiles de serpientes de tres diferentes localidades de Colombia. Primero, del Mioceno del …
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Fossoriality In Snakes: Perspectives From Morphology And The Fossil Record
Snakes are a speciose clade of squamates that have diversified into almost all habitats, all with the same elongate limbless body plan. This thesis aims to improve scientific understanding of snake evolution by focusing on novel perspectives using both extant snakes and the fossil record. 1. …
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Autonomous Convoy Study of Unmanned Ground Vehicles using Visual Snakes
… possible solution explored. Statistical pressure snakes are used to gather relative position data at a specified frequency. A cubic spline is then fit to the relative position data using a least squares algorithm. The spline represents the path on which the lead vehicle has already traversed. …
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Food Habits of Snakes in an East Texas State Fish Hatchery
… Texas to determine the amount of predation by snakes on fish being propagated. The hatchery consisted of 63 earthen ponds. A total of 373 snakes were captured. Results of stomach contents analyses of the 206 snakes containing food were calculated in per cent frequency of occurrence and per cent …
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The relationships of the laticaudine sea snakes (family elapidae genus laticuada)
… others consider that Laticauda and "true" sea snakes (Hydrophiinae) are more likely to have had separate origins within the front-fanged "proteroglyphous" snakes (Elapidae); laticaudines are thought to be most closely allied to a group comprising terrestrial Asiatic and American coral snakes …
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Venom Expenditure by Viperid and Elapid Snakes: Mechanisms, Adaptation, and Application
… venom expenditure by viperid and elapid snakes in both predatory and defensive contexts. I also considered the consequences of venom delivery into human snakebite victims. In the first of four experiments, In the first experiment, I explored whether the Black-necked Spitting Cobra …
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Life Cycle of Sarcocystis Sp. In Deer Mice and Gopher Snakes
Made available in DSpace on 2014-12-14T13:28:20Z (GMT). No. of bitstreams: 1 7915322.pdf: 6863760 bytes, checksum: e4435b65cabb00380264d56ba78d61ac (MD5) Previous issue date: 1979
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