A Study on Age Determination and Life Cycle of Pelophylax ridibundus (Pallas, 1771) by Skeletochronology Method

Yıl 2024, Cilt: 7 Sayı: 5, 1999 - 2009, 10.12.2024

Ahmet Alkaya , Hülya Şereflişan

Öz

In this study, age determination of male and female adult Pelophylax ridibundus individuals captured from around the Gölbaşı Lake. Tailless frogs of age was defined by the skeletal chronology method. The fourth toes of the hind legs were used in this method. Age was determined counted on the Resting Lines (RL) of the phalanges. The mean ages of frogs were female 3.72 ± 0.97 years (range 2-7) and male 3.77±0.87 years (range 3-6) respectively. There was no significant difference between the ages of female and male frogs (P>0.05). The mean weights of female and male frogs were found to be 62.9±18.57 g and 42.77±10.74 g, respectively. This difference among the weights was significant (P<0.05). The mean snout- vent length (SVL) value was measured as 74.71±11.91 mm for females and 71.7±7.25 mm for males. There was no significant difference in SVL among both sexes (P>0.05). In addition, it was defined a significant correlation among the SVL of female (r=0.889, P<0.01, N=36) and male frogs (r=0.833, P<0.01, N=18) age. As a result of the study, it was seen that the frogs have a young population structure.

Anahtar Kelimeler

Age determination, Edible frog, Pelophylax ridibundus, Skeletochronology, Gölbaşı lake

Pelophylax ridibundus'un (Pallas, 1771) İskeletkronoloji Yöntemiyle Yaş Tespiti ve Yaşam Döngüsü Üzerine Bir Araştırma

Öz

Bu çalışmada, Gölbaşı Gölü çevresinden yakalanan yetişkin erkek ve dişi Pelophylax ridibundus bireylerinin yaşlarının belirlenmesi amaçlanmıştır. Kuyruksuz kurbağaların yaşı iskelet kronolojisi yöntemine göre belirlenmiştir. Bu yöntemde, kurbağaların arka bacaklarının dördüncü ayak parmakları kullanılmaktadır. Yaş, falanjlardaki Dinlenme Halkaları (RL) üzerinden sayılarak belirlenmiştir. Kurbağaların ortalama yaşları sırasıyla dişi 3.72 ± 0.97 yıl (2-7 aralığı) ve erkek 3.77±0.87 yıl (3-6 aralığı) bulunmuştur. Dişi ve erkek kurbağaların yaşları arasında anlamlı bir fark görülmemiştir (P>0.05). Dişi ve erkek kurbağaların ortalama ağırlıkları sırasıyla 62.9±18.57 g ve 42.77±10.74 g olarak bulunmuştur. Ağırlıklar arasındaki bu fark anlamlıdır (P<0,05). Burun deliği-Kloak arası uzunluğu (SVL) ortalama değeri dişilerde 74.71±11.91 mm, erkeklerde ise 71.7±7.25 mm olarak ölçülmüştür. Her iki cinsiyet arasında SVL açısından anlamlı bir fark yoktur (P>0.05). Ayrıca, dişi (r=0.889, P<0.01, N=36) ve erkek kurbağaların (r=0.833, P<0.01, N=18) yaşları ile SVL arasında anlamlı bir korelasyon olduğu belirlenmiştir. Çalışma sonucunda, kurbağaların genç bir nüfus yapısına sahip olduğu görülmüştür.

Anahtar Kelimeler

Yaş tespiti, Yenilebilir kurbağa, Pelophylax ridibundus, İskelet kronolojisi, Gölbaşı gölü

Kaynakça

• Alford RA., Bradfield KS., Richards SJ. Global warming and amphibian losses. Nature 2007; 447: (7144): E3-4; discussion E5-6. doi: 10.1038/nature05940.
• Berezovikov NN., Duisebayeva, TN., Khromov, VA., Starikov SV. Rana ridibunda'nın Kazakistan'ın güneydoğusu ve doğusundaki dağılımına ilişkin yeni veriler. Herpetolojinin Sorunları, Pushchino 2001; 26-28.
• Bura M., Banaţean DI., Pistrila D., Nica D. Biometric study to rana ridibunda frog species nearness to timisoara locality. Zootehnie şi Biotehnologii 2007; 40(2): 8-13.
• Castanet J., Smirina EM. Introduction to the skeletochronological method in amphibians and reptiles. Annales des Sciences Naturelles 1990; 11: 191-196.
• Castanet J. Amphibiens et reptiles non aviens: un matériel de choix en squelettochronologie. Bulletin de la Societe Herpetologique de France 2002; 103: 21-40.
• Cohen MM. Frog decline, frog malformations, and comparison of frog and human health. Am. J. Med. Genet. 2001; 104: 101-109.
• Çiçek K., Ayaz D., Kumaş M., Mermer A., Engin GD. Age structure of Levant water frog, Pelophylax bedriagae, in Lake Sülüklü (Western Anatolia, Turkey). Basic Appl. Herpetology 2011; 25: 73–80.
• Erişmiş UC. Göller Bölgesi Rana ridibunda (Anura: Ranidae) populasyonlarında yaş-boy, yaş-ağırlık ve boy-ağırlık ilişkilerinin araştırılması. Ege Üniversitesi, Fen Bilimleri Enstitüsü, Doktora Tezi 2004., 290 s., Bornova-İzmir.
• Erişmiş UC. Abundance, demography and population structure of Pelophylax ridibundus (Anura: Ranidae) in 26-August National Park (Turkey). North- Western Journal of Zoology 2011; 7(1): 1-12.
• Fagotti A., Di Rosa I., Simoncelli F., Pascolini R. Ecology: the proximate cause of frog declines? Nature 2007; 447(7144): E4-5; discussion E5-6.
• Guarino FM., Erismis UC. Age determination and growth by skeletochronology of Rana holtzi, an endemic frog from Turkey. Ital. J. Zool. 2008; 75: 237–242.
• Gül S., Özdemir N., Üzüm N., Olgun K., Kutrup, B. Body size and age structure of Pelophylax ridibundus populations from two different altitudes in Turkey. Amphibia- Reptilia 2011; 32(2): 287-292.
• Halliday TR., Verrell PA. Body size and age in amphibians and reptiles. Journal of Herpetology 1988; 20: 570-574.
• Hemelaar A. Demographic study on Bufo bufo L. (Anura, Amphibia) from different climates, by means of skeletochronology. Ph.d Thesis, University of Nijmegen 1986, Netherlands.
• Houlahan JE., Findlay CS., Schmidt BR., Myer, AH., Kuzmin SL. Quantitative evidence for global amphibian population declines. Nature 2000; 404: 752–755.
• IUCN. Pelophylax ridibundus. In: IUCN Red List of Threatened Species. Version 2010.1. Available at www.iucnredlist.org (downloaded on 20 April 2010).
• İsmail İB., Çiçek K. Population size, age structure and life cycle of levant water frog, Pelophylax bedriagae (Camerano, 1882) (Amphibia: Anura: Ranidae) in Lake Sülüklü (Manisa). Ege Journal of Fisheries and Aquatic Sciences 2017; 34(2): 169-177.
• Kaefer IL., Boelter RA., Cechin SZ. Reproductive biology of the invasive bullfrog Lithobates catesbeianus in Southern Brazil. Annales Zoologici Fennici 2007; 44: 435–444.
• Khonsue W., Matsui M., Misawa Y. Age determination by skeletochronology of Rana nigrovittata, a frog from tropical forest of Thailand. Zool. Sci. 2000; 17: 253- 257.
• Kiesecker JM., Blaustein AR., Belden LK. Complex causes of amphibian population declines. Nature 2001; 410:681-684.
• Kuzmin S., Tarkhnishvili D., Ishchenko V., Dujsebayeva T., Tuniyev B., Papenfuss T., Beebee T., Ugurtas IH., Sparreboom M., Rastegar-Pouyani N., MousaDisi AM., Anderson S., Denoël M., Andreone F. Pelophylax ridibundus. In book: The IUCN Red List of Threatened Species 2009. Publisher: The IUCN Red List 2009. Kyriakopoulou-Sklavounou P., Stylianou P., Tsiora A. A skeletochronological study of age, growth and longevity in a population of the frog Rana ridibunda from Southern Europe. Zoology 2008; 111: 30-36.
• Leclair R., Castanet J. A skeletochronological assessment of age and growth in the frog Rana pipiens schreber (Amphibia, Anura) from southwestern quebee. Copeia 1987; 2: 361-369.
• Liao WB., Zhou CQ., Yang ZS., Hu JC., Lu X. Age, size and growth in two populations of the dark-spotted frog Rana nigromaculata at different altitudes in southwestern China. Herpetological Journal 2010; 20: 77-82.
• Liao WB., Lu X. Age and growth of a subtropical high elevation torrent frog, Amolops mantzorum, in western China. Journal of Herpetology 2010a; 44: 172-176.
• Liao WB., Lu X. Adult body size = f (initial size + growth rate × age): explaining the proximate cause of Bergman‟s cline ina toad along altitudinal gradients. Evolutionary Ecology 2014; 26(3):579-590.
• Lu X., Li B., Liang JJ. Comparative demography of a temperate anuran, Rana chensinensis, along a relatively fine altitudinal gradient. Canadian Journal of Zoology 2006; 84: 1-7.
• Marunouchi J., Kusano T., Udea H. Validity of back calculation methods of body size from phalageal bones: An assesment using data for Rana japonica. Current Herpetology 2000; 19(2): 81-89.
• Mohneke M., Rodel MO. Declining amphibian population and possible ecological consequences-a review. Salamandra 2009; 45: 203–207.
• Nayak S., Mahapatra PK., Mohanty RK., Dutta, SK. A skeletochronological analysis of age, growth andlongevity of the Indian Green Frog Euphlyctis hexadactylus (Lesson, 1834) (Anura: Ranidae), Herpetozoa 2008; 20(3/4): 99-107.
• Olgun H. Reşadiye (Tokat) Triturus karelinii (Strauch, 1870) (Amphibia: Urodela) populasyonunda yaş tayini. Anadolu Doğa Bilimleri Dergisi 2012; 3(2): 25-33.
• Plytyez B., Bigaj J. Studies on the growth and longevity of the yellow- bellied toad, Bombina variegata in natural environments, Amphibia- Reptilia 1993; 14: 35-44.
• Reaser JK. Demographic analysis of the Columbia spotted frog (Rana luteiventris): case study in spatiotemporal variation. Canadian Journal of Zoolog y 2000; 78: 1158-1167.
• Ryser J. Determination of growth and maturation in the common fog, Rana temporaria, by skeletochronology. Journal of Herpetology 1988; 216: 673-685.
• Ryser J. Comparative life histories of a low- and high elevation population of the common frog, Rana temporaria. Amphibia–Reptilia 1996; 17:183–195.
• Socha M., Ogielska M. Age structure, size and growth rate of water frogs from central European Natural Pelophylax ridibundus-Pelophylax kl. esculentus mixed populations estimated by skeletochronology, Amphibia-Reptilia 2010; 31(2): 239-250.
• Spigonardi MP., Roberto R., Regina C. Preliminary morphometric data of Pelophylax perezi (Amphibia: Ranidae) in Sao Jorge Island (Azores). XV Expediçao Cient fica do Departamento de Biologia, Rel. Com. Dep. Biol. 2011; 40: 80-87.
• Tok CV., Atatür MK., Ayaz D. Morphological characterization of a population of Rana ridibunda Pallas, 1771 in the Dalaman area, Turkey. Zoology in the Middle East 2000; 20(1): 47-54.
• Toledo LF., Ribeiro RS., Haddad FB. Anurans as prey: An exploratory analysis and size relationships between predators and their prey. J. Zool. 2007; 271: 170–177.
• Tsiora A., Kyriakopoulou-Sklavounou P., Stylianou P. A skeletochronological study of age, growth and longevity in a population of the frog Rana ridibunda from southern Europe. Zoology 2002; 111(1): 30-36.
• Wei Chen., Qing GW., Zhi XS., Xin L. Age, body size and clutch size of Rana kukunoris, a subtropical frog native to China. Herpetological Journal 2013; 22: 203–206.
• Yılmaz N. Yıldız Deresi (Trabzon) Rana ridibunda (Su kurbağası) popülasyonunda yaş tayini ve bazı büyüme parametrelerinin incelenmesi. Yüksek Lisans Tezi, KTÜ, Fen Bilimleri Enstitüsü 2001, Trabzon.
• Yılmaz N., Kutrup B., Çobanoğlu Ü., Özoran Y. Age determination and some growth parameters of Rana ridibunda population in Turkey. Acta Zoologica Academiae Scientiarum Hungaricae 2005; 51(1): 67-74.