Mathematical Treatment of Biological Diffusion
Mathematical Treatment of Biological Diffusion
复制标题
生物扩散的数学处理
DOI：
10.1007/978-1-4757-4978-6_5
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
D. Grünbaum
中科院分区：
文献类型：
--
作者：
A. Ōkubo;D. Grünbaum
大多数动物在一生中都会有一段时间栖息地被遗弃而有利于迁徙。因此，在一个随时间和空间不断变化的环境中，一个新的个体为了适应生存和繁殖而采取的最可能的策略可能不一定是留下来与它的父母或同类竞争，而可能是迁移到其他地方去寻找一个空的栖息地（Taylor和Taylor，1977;另见Lidicker和考德威尔，1982）。因此，人口的扩散，即，分散，发生。这种动物运动包括游牧，即动物以类似于随机行走的方式在没有特定方向的情况下寻找食物;和迁移，这可能是周期性的，因为动物在重复的循环中从一个栖息地移动到另一个栖息地，或者是非周期性的，意味着一定程度的永久性移动。此外，动物在其栖息地（家域）的给定范围内进行日常活动时，可能会显示出受限的运动。
In the lifetime of most animals there occurs a time when the site of inhabitation is abandoned in favor of migration. Thus, in an environment changing through space and time, the most probable strategy for a new individual to adapt to survive and reproduce may not necessarily consist of remaining to compete with its parents or congeners, but may rather consist of migrating elsewhere to find an empty niche to inhabit (Taylor and Taylor, 1977; see also Lidicker and Caldwell, 1982). As a result the spread of population, i.e., dispersal, takes place. Such animal movement includes nomadism, whereby animals wander with no particular direction in search of sustenance, in a manner that resembles the random walk; and migration, which may be either periodic as animals move from one habitat to another in a repetitive cycle, or nonperiodic, implying a certain degree of permanence to the move. In addition, animals may display a restricted movement as they carry on their daily activities within a given domain of their habitat (home range).