Literaturdatenbank
Literaturdatenbank |
|
 |
|
Cadi, A., & Miquet, A. (2004). A reintroduction programme for the european pond turtle (emys orbicularis) in lake bourget (savoie, france): First results after two years. Biologia (Bratislava), 59(Suppl. 14), 155–159.
Added by: Admin (06 Jan 2014 18:22:41 UTC) |
| Resource type: Journal Article BibTeX citation key: Cadi2004f View all bibliographic details  |
Categories: General Keywords: Emydidae, Emys orbicularis, Habitat - habitat, Schildkröten - turtles + tortoises, Südwesteuropa - South-Western Europa Creators: Cadi, Miquet Collection: Biologia (Bratislava) |
Views: 5/529
Views index: 14% Popularity index: 3.5% |
| Abstract |
|
The reintroduction programme of the European pond turtle (Emys orbicularis) in Lake Bourget was designed in 1995. The release site is a complex of two ponds comprising 6 ha of reeds and 6 ha of open water surface, with a water depth of 20–150 cm, and an artificial nesting site. Between 2000 and 2002, 35 adult pond turtles were released in three groups. During the activity season all individuals were radiotracked daily and during winter once per month. Individual home-range sizes and habits were recorded. The turtles adapted well to the new environment as indicated by the following observations: (i) most individuals stayed the whole year within the releasing site, although the ponds having been emptied in summer for management purposes; (ii) several turtles (mostly females) explored part of Lake Bourget (in 1–6 km distance from the releasing site); (iii) all dispersing individuals returned to the release point for overwintering; (iv) several females were observed excavating nests on the artificial nesting site, while others shifted to other habitats around the egg-laying site during the same period. Our results demonstrate high survival rates, fidelity to certain areas, habitat exploration, and nesting behaviour. This suggests that the prospects of the reintroduction programme are positive. However, other important parameters, like reproductive output, nesting and hatching success, and juvenile survival need to be investigated to determine the future development of the population.
Added by: Admin |