A Preliminary Study of the Food of the Dwarf Snake, Eirenis modestus (Martin, 1838) (Serpentes: Colubridae), in ‹zmir and Manisa Provinces

İzmir ve Manisa ili Uysal Yılan, Eirenis modestus (Martin, 1838) (Serpentes: Colubridae),’ın Besini Üzerine Bir Ön Çalışma

Abstract

The stomach contents of 14 (4 Female Female, 4 Male Male and 6 juveniles) Eirenis modestus specimens captured during various field studies in İzmir and Manisa provinces were examined, and a total of 44 prey items were found. An analysis of the stomach contents revealed that prey belonging to the classes Insecta (75%), Chilopoda (11%), and Reptilia (2%) constituted the diet of the species; the remaining prey could not be identified. The most frequently consumed prey were the orders Coleoptera (32%) and Orthoptera (21%) by number; Coleoptera (36%), Orthoptera (36%), and Scolopendromorpha (29%) by frequency; and Scolopendromorpha (72%) by volume. Based on these results, Eirenis modestus feeds predominantly on arthropods found under stones (86%).

Özet

Bu çal›flmada, ‹zmir ve Manisa illerinde yap›lan arazi çal›flmalar› esnas›nda yakalanan 14 (4 , 4¶¶ ve 6 juv.) Eirenis modestus örne¤inin sindirim sistemi içeri¤i incelenmifl, toplam 44 av tespit edilmifltir. Sindirim sistemi içeri¤ine göre, türün besinini Insecta (% 75), Chilopoda (% 11) ve Reptilia (% 2) s›n›flar›na ait avlar oluflturmaktad›r ve geriye kalan avlar tan›mlanamam›flt›r. Bulunma oran› bak›m›ndan Coleoptera (% 32) ve Orthoptera (% 21); görülme s›kl›¤› bak›m›ndan Coleoptera (% 36), Orthoptera (% 36) ve Scolopendromorpha (% 29); hacim bak›m›ndan Scolopendromorpha (% 72) tak›mlar› en yüksek orana sahip av gruplar›d›r. Bu sonuçlara göre, Eirenis modestus büyük oranda tafl alt› eklembacakl› faunas› (% 86) ile beslenmektedir