Frétey T, Le Garff B
Muséum national d'histoire naturelle, Université de Rennes I, France.
C R Acad Sci III. 1996 Apr;319(4):295-9.
This study on common toad (Bufo bufo), demonstrates the identity of structure between femur and phalange of a same individual. That allowed us to use skeletochronology without killing animals, and to study the same population. The periodicity of the lines of arrested growth (LAG) is annual. The absolute age is determined in 96.2% of males and 87.8% of females. The endosteal resorption shows a sexual dimorphism, more important for females. The highest longevity recorded in the sample is 12 years for males and 9 years for females. We have determined of the precise age at which individuals have obtained their sexual maturity for 92.9% of the males and 85.4% of the females. The number of lines of arrested growth (LAG) resorbed does not increase with age after adulthood.
这项关于普通蟾蜍（Bufo bufo）的研究，展示了同一个体股骨和趾骨之间结构的一致性。这使我们能够在不杀死动物的情况下使用骨骼年代学，并研究同一群体。生长停滞线（LAG）的周期是每年一次。在96.2%的雄性和87.8%的雌性中确定了绝对年龄。骨内膜吸收表现出性别二态性，对雌性更为明显。样本中记录的最高寿命，雄性为12岁，雌性为9岁。我们已经确定了92.9%的雄性和85.4%的雌性达到性成熟的确切年龄。成年后，被吸收的生长停滞线（LAG）数量不会随着年龄增长而增加。
