Reproductive synchrony and home range size in a territorial microtine
Reproductive synchrony and home range size in a territorial microtine
复制标题
领地微型动物的生殖同步性和活动范围大小
作者：
W. McShea
本文以草地田鼠自然种群为研究对象，研究了相邻雌性间生殖同步性的程度。这个物种的雌性是领土的，在家庭范围内的振荡大小取决于哺乳期的状态。在成功养育后代的过程中，对57只雌性进行了无线电跟踪，观察到它们的家乡范围振荡。这些振荡在高人口密度时更为普遍。家庭范围重叠的雌性表现出彼此不同步的振荡。相邻领地雌性之间的非同步繁殖会增加种群的饱和密度，而这种繁殖时间的中断会破坏种群的社会结构。
The degree of reproductive synchrony between neighboring females was examined within a natural population of meadow voles, Microtus pennsylvanicus. Females of this species are territorial, with oscillations in home range size dependent on lactational state. Home range oscillations were observed for 57 females who were radiotracked during the successful rearing of offspring. These oscillations were more prevalent at high population densities. Females with overlapping home ranges exhibited oscillations which were asynchronous to each other. Asynchronous reproduction between adjacent territorial females would increase saturation density of the population and interruption of this reproductive timing would disrupt population social structure.