Allainé D, Pontier D, Gaillard J M, Lebreton J D, Trouvilliez J, Clobert J
Laboratoire de Biométrie, Université Cl. Bernard Lyon I, 43 Bd du 11 novembre, 69622, Villeurbanne Cedex, France.
C.E.P.E.-C.N.R.S., Route de Mende, BP 5051, 34033, Montpellier Cedex, France.
Oecologia. 1987 Sep;73(3):478-480. doi: 10.1007/BF00385268.
Although most life history traits in birds and mammals show an allometric relationship with body weight (Brody 1945; Lack 1968; Peters 1983; Calder 1984), such studies have failed to show a clear relationship for the components of fecundity: litter size and number of litters per year. By using a functional definition of the fecundity as the product of the number of litters per year with litter size, however we find an allometric relationship with allometric exponents of-0.15 in birds and-0.22 in mammals. the observed value of the allometric exponent for each order is discussed with regard to the theoretical value expected for variables dependent on time according to Lindstedt and Calder (Lindstedt and Calder 1981; Lindstedt et al. 1986). This has direct implications for investigation of demographic strategies.
虽然鸟类和哺乳动物的大多数生活史特征与体重呈现异速生长关系（布罗迪，1945年；拉克，1968年；彼得斯，1983年；考尔德，1984年），但此类研究未能表明繁殖力的组成部分（窝仔数和每年产仔窝数）之间存在明确关系。然而，通过将繁殖力定义为每年产仔窝数与窝仔数的乘积这一功能定义，我们发现鸟类的异速生长指数为-0.15，哺乳动物为-0.22，呈现出异速生长关系。根据林德施泰特和考尔德（林德施泰特和考尔德，1981年；林德施泰特等人，1986年）的研究，针对每个目观察到的异速生长指数值与根据时间预期的理论值进行了讨论。这对种群统计学策略的研究具有直接影响。
