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1 September 2008 Aspect of Population Structure of the European Pond Turtle (Emys orbicularis) in Lake Yayla, Western Anatolia, Turkey
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Abstract

Our main objective was to establish the population size, density, body size, and sex ratio of a local Emys orbicularis population. We examined the population structure of E. orbicularis in Lake Yayla, Buldan (Denizli), Turkey, using capture-recapture methods. The population consisted of 54% males, 42% females, and 4% juveniles. The adult sex ratio was significantly skewed in favor of males. Using the Jolly program, the population size was estimated at 1,462 (95% CI = 1,161–1,763), corresponding to a density of 81 turtles per hectare of optimal habitat. Females were larger than males. In carapace length, the Lake Yayla population resembles other small-sized populations inhabiting the southern parts of the species' range. The conservation status of the Turkish populations and their main threats are also discussed.

Dinçer Ayaz, Uwe Fritz, Mehmet Kutsay Atatür, Ahmet Mermer, Kerim Çiçek, and Murat Afsar "Aspect of Population Structure of the European Pond Turtle (Emys orbicularis) in Lake Yayla, Western Anatolia, Turkey," Journal of Herpetology 42(3), (1 September 2008). https://doi.org/10.1670/07-096.1
Accepted: 1 January 2008; Published: 1 September 2008
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