Literaturdatenbank
Literaturdatenbank |
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Crump, D. (2001). Western pond turtle (clemmys marmorata pallida) nesting behavior and habitat use. Unpublished thesis , San Jose State University.
Added by: Admin (29 Jan 2012 12:38:39 UTC) |
| Resource type: Thesis/Dissertation BibTeX citation key: Crump2001 View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Crump Publisher: San Jose State University |
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| URLs http://scholarwork ... du/etd_theses/2210 |
| Abstract |
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Sixteen adult female western pond turtles in a Califomia coastal stream and pennanent pond were radio-tagged and monitored for movement associated with nesting for one to three years during the summers of 1996. 1997 and 1998. A minimum of ten (61 %) of the turtles were gravid at least once during the study. and ne evidence of double clutching was observed. Nest site fidelity was found in three turtles monitored in 1996 and 1997. Three turtles explored two different nesting areas in a single nesting season. Observed nesting habitat occurred primarily in agricultural fields and a single horse pasture. Most upland activities began between 1205-1800 hours and lasted until at least the following day. All of the major age classes were present in the population. but certain practices. such as plowing and irrigation. may threaten nests. Therefore. most of the management efforts should focus on the agricultural fields and horse pasture.
Added by: Admin |