Literaturdatenbank
Literaturdatenbank |
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Balázs, E., & Györffy, G. (2006). Investigation of the european pond turtle (emys orbicularis linnaeus, 1758) population living in a backwater near the river tisza, southern hungary. Tiscia, 35, 55–64.
Added by: Admin (27 Jun 2009 12:36:18 UTC) |
| Resource type: Journal Article BibTeX citation key: Balzs2006 View all bibliographic details  |
Categories: General Keywords: Emydidae, Emys, Emys orbicularis, Habitat = habitat, Schildkröten = turtles + tortoises, Südosteuropa = South-Eastern Europe Creators: Balázs, Györffy Collection: Tiscia |
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| Abstract |
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Emys orbicularis Abstract. A European pond turtle population living in a polluted backwater has been investigated since 2002. Turtles were collected with steel cage-traps and then this marked and measured. The average population size estimated by the Frequency of Capture method was 1,187 and by the Petersen-Schnabel method 740, and the density of the population was 142-228 turtles/hectare or 569-913 turtles/km respectively. The sex ratio was near 1:1. The differences between sexes and the distributions of size classes of the following morphological traits were investigated: tail length, shell height, plastron length and width, carapace length and width, and body mass. The turtle population was in good condition based on the correspondence of its body mass to its carapace length. Out of the 458 specimens captured in 2002, 29 males and 54 females were injured, and 65 (33 males and 32 females) had shell abnormalities.
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