Literaturdatenbank
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Roosenburg, W. M., Haley, K. L., & McGuire, S. (1999). Habitat selection and movements of diamondback terrapins, malaclemys terrapin, in a maryland estuary. Chelonian Conservation and Biology, 3(3), 425–429.
Added by: Admin (17 Aug 2008 18:17:25 UTC) |
| Resource type: Journal Article BibTeX citation key: Roosenburg1999 View all bibliographic details  |
Categories: General Keywords: Emydidae, Habitat = habitat, Malaclemys, Malaclemys terrapin, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Haley, McGuire, Roosenburg Collection: Chelonian Conservation and Biology |
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| Abstract |
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Habitat selection and movements of diamondback terrapins, Malaclemys terrapin, were studied in a brackish water estuary of the Chesapeake Bay in Maryland. Adult male, adult female, juvenile male, and juvenile female turtles were tagged using a fishing bobber and followed by boat for 3-hr periods. Location was determined using GPS at 15-min intervals. Water temperature, depth, and distance from shore were measured and compared among the groups. Adult females moved more often and were further from shore than adult males, juvenile males, and juvenile females. Adult females were observed more frequently in deeper water than juvenile males and females. Water temperature did not differ between the groups. Our findings suggest that larger adult female terrapins move further and spend more time in deeper water while smaller males and all juveniles remain nearer shore in shallower water. Movement differences are probably the consequences of differences in foraging behavior. Differences in habitat use can affect terrapin management and conservation strategies both locally and throughout the species' range.
Added by: Admin |