Global ETD Search
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Showing 1 to 6 of 6 for “"Watersnakes"”.
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Growth Rate and Performance Effects on Watersnakes (Nerodia Sipedon) from Dietary Exposure to Heavy Metals
… rates and performance measures in Northern Watersnakes, Nerodia sipedon when fed fish from a polluted mining-waste site or fish from non-contaminated sources. Fish collected from the mining-waste site contained significantly higher levels of As, Cd, Pb, and Zn than control fish. Over eight …
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Pathological characterization of natural Ophidiomyces ophiodiicola infection in wild-caught Lake Erie watersnakes: A standardized approach to documentation of disease
Ophidiomyces ophiodiicola (formerly Chrysosporium ophiodiicola), the causative agent of ophidiomycosis (Snake Fungal Disease; SFD), is a serious emerging fungal pathogen causing morbidity and mortality in both wild and captive snakes. SFD has been documented in terrestrial and aquatic captive snake …
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Hybridization Between the Watersnakes <i>Nerodia sipedon</i> and <i>Nerodia fasciata,</i> in the Carolinas: A Morphological and Molecular Approach
<p>A few traditionally applied diagnostic characters of color pattern were compared with an additional set of morphological and genetic characters to evaluate differences between <em>Nerodia sipedon</em> and <em>N. fasciata</em> and to study the dynamics across their hybrid zone in the Carolinas. …
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DETECTION AND OCCURRENCE OF NERODIA HARTERI (SERPENTES: COLUBRIDAE) IN AN UPPER PORTION OF THE BRAZOS RIVER WATERSHED
… terrestrial and aquatic habitats. Brazos River Watersnakes, <em>Nerodia harteri</em>, are endemic natricines with one of the most restricted geographic ranges in North America. I quantified detection and site occupancy probabilities of <em>N. harteri</em> and its sympatric congeners (<em>N. …
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Phenotypic Consequences of Gestation Temperature in the Northern Watersnake, Nerodia Sipedon
… offspring phenotypes produced by gravid Northern Watersnakes (Nerodia sipedon) maintained at constant temperatures of 23, 26, and 29°;C. Swimming speed, defensive strikes, and flight response were tested at 1 and 26 weeks of age, and growth was measured until 30 weeks of age. The number of ventral …
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Characterizing the epidemiology of ophidiomycosis in North American snakes through field studies, modeling, pathogen genomic analysis, and treatment trials
… in southeast Georgia, USA and in Lake Erie watersnakes (Nerodia sipedon insularum, LEWS) in Ottawa and Erie Counties, Ohio, USA. Snakes were captured during visual encounter surveys and visually inspected for skin lesions suggestive of ophidiomycosis, then a body swab was collected to detect …