[PDF] Nest Predation And Effects Of Human Recreation On The Wood Turtle Clemmys Insculpta Of A Western Michigan River eBook

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Factors Affecting Predation on Wood Turtle (Glyptemys Insculpta) Nests in the Western Upper Peninsula of Michigan

Jenny Lynn Rutherford
Factors Affecting Predation on Wood Turtle (Glyptemys Insculpta) Nests in the Western Upper Peninsula of Michigan by Jenny Lynn Rutherford PDF

Author : Jenny Lynn Rutherford
Publisher :
Page : 54 pages
File Size : 23,93 MB
Release : 2010
Category : Turtles
ISBN :

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Understanding predator foraging habits and nesting ecology of turtles is essential for the long term management of predator and prey. The objectives of this study were to (1) collect descriptive data on nesting ecology, including nest predation rate of a Wood Turtle population in the Upper Peninsula of Michigan, (2) investigate potential cues used by predators for location of Wood Turtle nests, and (3) determine effects of the distance of nests from a river on predation. Natural nests (identified by oviposition behavior of females) were marked and monitored for predation. Additionally, simulated nests were created with 1 of 4 treatments applied: soil disturbance, turtle-scented water, soil disturbance and turtle-scented water, and distilled water (control). In a second experiment, artificial nests with buried chicken eggs were created at varying distances from the river and monitored for predation. Natural nest in this study experienced a low predation rate (4/7) compared to other studies. This result may be an artifact of small sample size or the remoteness of the study area, absence of human disturbance and resulting low density of raccoons. My results also suggest that nest predators used soil disturbance cues primarily for locating nests. Thus, applying a chemical cue to artificial nests in future empirical nest predation studies may be irrelevant. Nest predation decreased as nest distance from the river increased, which may have important conservation implications for future management plans.

Master's Theses Directories

Master's Theses Directories by PDF

Author :
Publisher :
Page : 420 pages
File Size : 34,73 MB
Release : 2000
Category : Dissertations, Academic
ISBN :

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"Education, arts and social sciences, natural and technical sciences in the United States and Canada".