Serap ERGENE, AŞKIN HASAN UÇAR, Cemil AYMAK

Demre (Kale) kumsalı'nda yuva yapan Caretta populasyonunun araştırılması

Bu çalışmada, Antalya ili sınırları içinde yer alan Demre (Kale) kumsalına 2006 üreme sezonunda yuva yapan Caretta caretta populasyonu, alan 5 bölgeye (Çayağzı Kumsalı, Sülüklü Kumsalı, Taşdibi Kumsalı, Beymelek-Sıfat Kumsalı ve Beymelek-Dalyan Kumsalı) ayrılarak incelenmiştir. Bu sezonda kumsala toplam 183 çıkış olmuş ve bunlardan 52 (%28.42) tanesi yuva ile sonuçlanmıştır. Yuva yoğunluğu 6.12 .yuva/km. olarak tespit edilmiştir. En yüksek yuvalama kapasitesine sahip bölge 16 yuva (%30.77) ile Beymelek-Dalyan kumsalıdır. Bunu sırasıyla 15 yuva (%28.85) ile Beymelek-Sıfat, 13 yuva (%25) ile Çayağzı, 5 yuva (%9.61) ile Sülüklü, 3 yuva (%5.77) ile Taşdibi izlemektedir. Gerçekleşen 131 adet yuvasız (iz) çıkıştan 64 (%48.86) tanesi Beymelek-Dalyan’da, 40 (%30.53) tanesi Beymelek-Sıfat, 11 (%8.40) tanesi Sülüklü, 9 (%6.87) tanesi Taşdibi, 7 (%5.34) tanesi Çayağzı gerçekleşmiştir. Ortalama yumurta sayısı 83.25 (Min: 46 - Max: 147- Std. Dev: 25.96)’dir.

Anahtar Kelimeler:

üreme mevsimi, yuva yapmak, Caretta caretta, koruma alanları, Antalya, üreme yerleri, Türkiye

Survey on the population of Caretta nesting at Demre (Kale) Beach

Survey on the population of Caretta caretta nesting at Demre (Kale) Beach. In this study, the population of Caretta caretta nesting at Demre (Kale) beach in Antalya, was investigated by dividing the area into 5 sections (Çayağzı beach, Sülüklü beach, Taşdibi beach, Beymelek-Sıfat beach and Beymelek-Dalyan beach) in 2006 nesting season. There were 183 emergences and 52 of them (28.42%) resulted in nests. The nesting density was determined as 6.12 nest/km. The area which had the highest nesting capacity was Beymelek – Dalyan beach where there were 16 nests (30.77%). Beymelek – Sıfat beach had 15 nests (28.85%), Çayağzı beach had 13 nests (25%), Sülüklü had 5 nests (9.61%) and Taşdibi had 3 nests (5.77 %). Among 131 emergences resulted in no nests (trace), 64 (48.86%) were at Beymelek- Dalyan beach, 40 (30.53%) were at Beymelek –Sıfat beach, 11 (8.40%) were at Sülüklü beach, 9 (6.87%) were at Taşdibi beach, and 7 (5.34) were at Çayağzı beach. The average number of eggs were 83.25 (Min: 46 – Max: 147- Std. Dev: 25.96).

Keywords:

breeding season, nesting, Caretta caretta, conservation areas, Antalya, breeding places, Turkey,

PDF

___

Aymak C., S. Ergene Gözükara, Y. Kaska. 2005a. Reproductive ecology of Caretta caretta and Chelonia mydas during 2002 and 2003 nesting seasons in Alata, Mersin, Turkey. The Second Mediterranean Conference on Marine Turtles Book of Abstracts, 10, 4-7 May Kemer, Antalya.

Aymak C., S. Ergene Gözükara, Y. Katılmış, R. Urhan, A. H. Uçar. 2005b. Invertebrate infestation on eggs of the loggerhead turtle Caretta caretta and the green turtle Chelonia mydas in Alata, Turkey. The Second Mediterranean Conference on Marine Turtles Book of Abstracts, 10, 4-7 May Kemer, Antalya.

Baran, İ., H. Durmuş, E. Çevik, S. Üçüncü, A. F. Canbolat. 1992. Determining the stock of marine turtles of Turkey (in Turkish). Doğa-Turkish Journal of Zoology, 16: 119-139.

Baran, İ., S. H. Durmuş, O. Türkozan. 1998. Erster nachweis der lederschildkröte, Dermochelys coriacea (Linnaeus, 1766) (Testudines: Dermochelyidae) aus Türkischen gewassern. Herpetofauna. 20 (112): 34-37.

Baran, İ., M. Kasparek. 1989. Marine turtles Turkey. Status survey 1988 and recommendation for conservation and management: Prepared by WWF, Heidelberg.

Baran, İ., O. Türkozan. 1996. Nesting activity of the loggerhead turtle, Caretta caretta on Fethiye Beach, Turkey in 1994. Chelonian Conservation and Biology 2 (1), 93-96.

Baran, İ. 1990. Sea turtles in Turkey. Marine turtle newsletter, 48, 21-22.

Başoğlu, M. 1973. Sea turtles and the species found along the coast of neighboring countries. Türk Biyoloji Dergisi 23: 12–21.

Başoğlu, M., İ. Baran. 1982. Short reports on previously collected sea turtle data in Anatolian coastline. Doğa, Temel Bilimler Serial A 6 (2), 69-71. [in Turkish].

Canbolat, A. F. 1991. Survey on the Caretta caretta (Linnaeus, 1758) population in Dalyan beach (Muğla, Türkiye) (in Turkish). Doğa-Turkish Journal of Zoology 15, 255- 274.

Canbolat, A. F. 2004. A review of sea turtle nesting activity along the Mediterranean coast of Turkey. Biological Conservation 116: 81-91.

Ergene S., C. Aymak, Y. Kaska. 2003. Survey on the sea turtle (Caretta caretta ve Chelonia mydas) populations on the Alata beach (Mersin) (in Turkish). Proceedings of the First National Conference on Marine Turtles, 82-90, 4-5 Aralık 2003, İstanbul.

Ergene S., C. Aymak, A. H. Uçar. 2006. Nesting activity of the marine turtle (Chelonia mydas and Caretta caretta) during 2005 in Alata, Mersin-Turkey. 26th Annual Symposium on Sea Turtle Biology and Conservation Book of Abstracts, 293, Island of Crete, Greece, 3-8 April 2006.

Erk’akan, F. 1993. Nesting biology of loggerhead turtles, Caretta caretta L. on Dalyan Beach, Muğla-Turkey. Biological Conservation 66, 1-4.

Geldiay, R. 1983. The importance of the strategy to be followed in the line with the basic sciences in the protection of marine turtle (Caretta caretta caretta ve Chelonia mydas mydas) populations Ege Üniversitesi. Fen Fakültesi Dergisi, Seri B, 1, 328-349. [in Turkish].

Geldiay, R. 1984. Survey on the sea turtle (Caretta c. caretta L. and Chelonia m. mydas L.) populations living on the Aegean and Mediterranean coasts of Turkey and their conservation (in Turkish). Doğa Bilim Dergisi A2 8 (1): 66-75.

Geldiay, R., T. Koray. 1982. Survey on the sea turtle (Caretta c. caretta L. and Chelonia m. mydas L.) populations living on the Aegean and Mediterranean coasts of Turkey and their conservation schemes (in Turkish). TUBITAK, Ankara - Turkiye . Project No. WHAG- 431, 121 p.

Geldiay, R., T. Koray, S. Balık. 1982. Status of the sea turtle populations (Caretta c. caretta and Chelonia m. mydas) in the Northern Mediterranean Sea, Turkey, In: Bjorndal, K. A. (Ed.), Biology and Conservation of Sea Turtles, Smithsonian Institution Press, Washington, D. C. 1982; 425- 434.

Groombridge, B. 1988. Marine turtles in the Mediterranean: Distribution, population status, conservation. A report to the Council of Europe, World Conservation Monitoring Centre, Cambridge, U. K., 72 p.

Hathaway, R. R. 1972. Sea turtle, unanswered questions about sea turtles in Turkey. Balık ve Balıkçılık 20 (1): 1-8.

IUCN 2007. Marine Turtle Specialist Group 1996. Caretta caretta. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. _____www.iucnredlist.org>. Downloaded on 03 June 2008; Seminoff, J.A. 2004. Chelonia mydas. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. _____www.iucnredlist.org>. Downloaded on 02 June 2008.

Kaska, Y. 1993. Investigation of Caretta caretta in Patara and Kızılot. MSc Thesis, Dokuz Eylül University (GSNAS) İzmir.

Lutz, P. L. ve J. M. Musick, 1997. The Biology of Sea Turtles. CRC Press, New York, 432 pp.

Oruç, A., F. Demirayak, G. Şat. 1997. Trawl fisheries in the eastern Mediterranean and its impact on Marine turtles. The Conclusive Report. DHKD – WWF,İstanbul, Turkey. [in Turkish].

Oruç, A., O. Türkozan, S. H. Durmuş. 2003, Following the marine turtles, The nesting beaches of marine turtles. The Evaluation Report 2003, WWF – Turkiye, İstanbul, Turkiye (ISBN: 975-92433-3-4). [in Turkish].

Peters, A., K. J. F. Verhoeven. 1992. Breeding success of the loggerhead, Caretta caretta, and the green turtle, Chelonia mydas, in the Göksu Delta. Turkey. Department of Animal Ecology, University of Nijmegen, Rapport No: 310.

Republic of Turkey Ministry of Environmental and Forestry General Directorate of Nature Conservation and National Parks. 2005. Marine Turtles in Turkey, 32 pp. Ankara.

Taşkavak, E., R. H. Boulon., M. K.Atatür. 1998. An unusual stranding of a leatherback turtle in Turkey. Marine Turtle Newsletter 80: 13.

Türkecan, O. ve S. V. Yerli. 2003. Aquatic Predation on The Sea Turtle (Caretta caretta) Juvenils (in Turkish). Birinci Ulusal Deniz Kaplumbağaları Sempozyumu Bildiriler Kitabı, 140- 147, 4-5 Aralık 2003, İstanbul.

Türkecan, O. 2004. Investigation of The Predation on Sea Turtle (Caretta caretta L.) (in Turkish). Hacettepe Üniversitesi Fen Bilimleri Enstitüsü Biyoloji Anabilim Dalı Yüksek Lisans Tezi.

Türkozan, O., I. Baran. 1996. Research on the loggerhead turtle, Caretta caretta of Fethiye beach. Turkish Journal of Zoology 20, 183 – 188.

Whitmore, C. P. and P. H., Dutton. 1985. Infertility, Embriyonic Mortality and Nest Site Selection in Leatherback and Green Sea Turtles in Suriname. Biol. Conserv. 34, 251-272.

Yerli, S., F. Demirayak. 1996. Marine Turtles in Turkey: A Survey on Nesting Site Status (in Turkish). DHKD, CMS Report No. 96/ 4, İstanbul (ISBN 975-96081-0-3) 133 pp.

Yerli, S., A. F. Canbolat, H. Uluğ, O. Doğan. 1998. Principles of the management Plan for the Protection of Sea Turtles in the West Mediterranean Cosats of Turkey (in Turkish). Ministry of Environment, GDEP Publication, ISBN 975-7347-45-0, Ankara. 90 pp