集合种群强物种种群的演化特性

大量的数值模拟研究表明;(1)集合种群里最强物种种群对栖息地占有率相对较少时,较小的栖息地毁坏率就可以导致该最强物种种群与其它奇数物种种群一起退化;(2)而最强物种种群对栖息地占有率相对较多则是导致集合种群里弱物种种群集体灭绝的内因;(3)当栖息地的毁坏率大于最强物种种群对栖息地的占有率时,最强物种种群将先灭绝而使得弱物种种群进化为强物种种群或新的更强的强物种种群。

The evolution characters of the best competitor of metapopulation

Loss of habitat due to human activities is a major threat to biological diversity, and habitat destruction may be the major reason of species extinctions. The fragmentation of natural habitat is the primary cause of current species extinction crisis. The predictions are made by an extension of meta population models to multispecies competition. Two points of interest and important questions are: what effects will be exerted on the best competitor of meta population by a light habitat destruction? What effec...