Biologia

, Volume 62, Issue 2, pp 225–227 | Cite as

Population estimate and body size of European pond turtles (Emys orbicularis) from Pazarağaç (Afyonkarahisar/Turkey)

  • Dinçer Ayaz
  • Uwe Fritz
  • Cemal Varol Tok
  • Ahmet Mermer
  • Murat Tosunoğlu
  • Murat Afsar
  • Kerim Çiçek
Short Communication

Abstract

Data on population size, adult sex ratio, body size and mass are provided for a population of the turtle Emys orbicularis near Pazarağaç (Afyonkarahisar/Turkey). Using the mark-recapture method (triple catch), a population size of 664 turtles was estimated (95% confidence interval, range 332–996), corresponding to a density of 83 turtles per hectare (range 41.5–124.5). The adult sex-ratio was significantly skewed in favor of males (2.02 males: 1 female; P < 0.001). Almost all recorded specimens were adult (98.1%). Mean straight carapace length (SCL) and body mass (BM) of adult turtles were: SCL = 128.65 mm, BM = 345 g for males (n = 168) and SCL = 135.37 mm, BM = 463 g for females (n = 83).

Key words

Emys orbicularis freshwater turtle population size body size sex ratio Turkey 

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Copyright information

© Institute of Zoology, Slovak Academy of Sciences 2007

Authors and Affiliations

  • Dinçer Ayaz
    • 1
  • Uwe Fritz
    • 2
  • Cemal Varol Tok
    • 3
  • Ahmet Mermer
    • 1
  • Murat Tosunoğlu
    • 3
  • Murat Afsar
    • 4
  • Kerim Çiçek
    • 1
  1. 1.Faculty of Science, Biology DepartmentEge UniversityBornova-IzmirTurkey
  2. 2.Natural History State Collections Dresden, A. B. Meyer BuildingMuseum of ZoologyDresdenGermany
  3. 3.Faculty of Science-Literature, Department of BiologyÇanakkale Onsekiz Mart UniversityÇanakkaleTurkey
  4. 4.Faculty of Science-Literature, Department of BiologyCelal Bayar UniversityManisaTurkey

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