Literaturdatenbank
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Marlow, R. W., von Seckendorff Hoff, K., & Brussard, P. (1997). Management of wild tortoise populations is complicated by escape or release of captives. Proceedings: Conservation, Restoration, and Management of Tortoises and turtles - An International Conference.
Added by: Admin (17 Aug 2008 18:17:21 UTC) |
| Resource type: Journal Article BibTeX citation key: Marlow1997 View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Schildkröten = turtles + tortoises, Veterinärmedizin = veterinary medicine Creators: Brussard, Marlow, von Seckendorff Hoff Collection: Proceedings: Conservation, Restoration, and Management of Tortoises and turtles - An International Conference |
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| Abstract |
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From 1990 to 1992 extensive field survey and collection of tortoises in southern Nevada has documented a pattern of occurrence of desert tortoises symptomatic for Upper Respiratory Tract Disease (URTD). Symptomatic tortoises were found throughout southern Nevada, but the highest occurrence was in habitat adjacent to urbanized areas and adjacent to highways and roads. In a sample of 841 tortoises removed from land in the Las Vegas Valley scheduled for development, 7.8% were obviously escaped or released captives, and 14.5% were symptomatic for URTD. Outside the Las Vegas Valley, the distribution of symptomatic tortoises closely corresponded to proximity to major highway access from Las Vegas. It is well known that captive tortoises (including those symptomatic for URTD) escape and are purposely released into the wild and that the disease may be spread in this manner. It is hypothesized that the pattern of distribution of symptomatic tortoises can be explained by the escape and release of captive tortoises into the wild. Management of wild tortoise populations has probably already been compromised by the existence of a large captive tortoise population and can be significantly complicated by future uncontrolled adoption programs.
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