Samandağ Kumsalı Yeşil Deniz Kaplumbağası (Chelonia mydas) Yuvalarında Memeli Predasyonunun Zamansal ve Mekansal Değişiminin İncelenmesi

Authors : Bektaş SÖNMEZ

Pages : 79-88

Doi:10.24180/ijaws.400827

View : 25 | Download : 17

Publication Date : 2018-06-20

Article Type : Research Paper

Abstract :Nest predation is an important practical challenge for the protection of many endangered species of birds and reptiles, and has the potential to reduce hatching success and slow the recovery of the threatened populations. Estimating the temporal and spatial variation of the nest predation has the potential to optimize predation management. In this study, the temporal and spatial variation of mammalian predation was investigated in the green sea turtle insert ignore into journalissuearticles values( Chelonia mydas ); nests on Samandağ beach, Eastern Mediterranean, Turkey. A total of 964 nests were examined between 2012 and 2017, which 733 of them were protected with screened metal grid and 231 of them unscreened control nests. The most effective nest predator was identified as the Jackal insert ignore into journalissuearticles values( Canis aureus );. The protection of the nests with the screened metal grid has effectively increased the hatching success. The number of predated nests showed a positive trend over the years, but this trend was not statistically significant. The likelihood of predation increased towards the end of the incubation period, and did not change in the spatial variation according to the distance to the sea and vegetation. Also, the likelihood of the predation increased towards the end of the beach. Investigation of the likelihood of predation by nest density and nest depth in future studies is important. Also, the investigation of population ecology and status of the Jackals, which is predominant predators on the Samandag beach, is important for the both species.
Keywords : Chelonia mydas, Samandağ, Predation, Canis aureus, Green sea turtle, Samandağ