Der Lebensraum der Europäischen Sumpfschildkröte Emys orbicularis (L) in den niederösterreichischen Donau-Auen (Reptilia: Testudines: Emydidae).
12 Seiten © Biologiezentrum Linz/Austria
Abstract:
Over a period of three years (1997-1999) I studied habitat requirements of the European pond turtle in the National Park "Donau-Auen" in the Austrian state of Lower Austria. Two side arms of the Danube inhabited by Emys orbicularis are characterized. Juvenile European pond turtles preferred shallower, more vegetated areas than adults.Sixty-eight percent of all sighted basking turtles (n = 303 sightings) were observed on tree trunks,23 % on the embankment, and 10 % on floating leaves of aquatic macrophytes. Nesting sites are xerothermic, sandy meadows up to 800 m away from water bodies. Temperature regimes, predation rates and vegetation cover of nest sites are described and related to the vertical distribution of the nests at a sun-exposed embankment.
9383