Kyriakopoulou-Sklavounou Pasqualina, Stylianou Panagiota, Tsiora Anna
Department of Zoology, Aristotle University of Thessaloniki, Box 134, 541 24 Thessaloniki, Greece.
Zoology (Jena). 2008;111(1):30-6. doi: 10.1016/j.zool.2007.03.002. Epub 2007 Jul 12.
Age at sexual maturity and longevity in a population of Rana ridibunda from north-eastern Greece were studied by skeletochronology performed on the phalanges. Analysis of the age structure was based on counting the lines of arrested growth (LAGs). Sexual maturity for both sexes arises during the first year or after the first hibernation. Ages ranged from 1 to 5 years (mean=2.96) among 52 males and from 1 to 5 years (mean=3.73) among 56 females. The mean snout-vent length was 69.03+/-12.6mm in males and 82.38+/-13.27 mm in females. The difference between the sexes in age and size was significant. Growth of individuals was fitted on? The von Bertalanffy model. The growth coefficient (K) was 0.57 in males and 0.54 in females, mainly due to faster male growth between metamorphosis and maturation.
通过对希腊东北部泽蛙种群的指骨进行骨骼年代学研究，分析了其性成熟年龄和寿命。年龄结构分析基于计算生长停滞线（LAGs）。两性的性成熟均出现在第一年或第一次冬眠之后。52只雄性泽蛙的年龄范围为1至5岁（平均=2.96），56只雌性泽蛙的年龄范围为1至5岁（平均=3.73）。雄性的平均吻肛长度为69.03±12.6毫米，雌性为82.38±13.27毫米。两性在年龄和大小上的差异显著。个体生长符合冯·贝塔朗菲模型。雄性的生长系数（K）为0.57，雌性为0.54，这主要是由于雄性在变态和成熟之间生长较快。
