Natural selection contributes to food web stability
Natural selection contributes to food web stability
复制标题
自然选择有助于食物网的稳定
DOI：
10.1371/journal.pone.0227420
复制
发表时间：
2020-01-10
期刊：
影响因子：
3.7
通讯作者：
Mougi, Akihiko
中科院分区：
文献类型：
--
作者：
Mougi, Akihiko
如何维持生态系统中的生物多样性是生态学的中心问题。根据进化理论，个体之间的可遗传变异对于物种多样性的产生是重要的，它将种内和种间变异联系在一起。目前的食物网模型表明，通过自然选择实现的种内变异在维持物种多样性的大型群落的稳定性方面也起着至关重要的作用。特别是，我们的计算表明，较大的群落需要更多的种内变异来维持，并在多个性状可变时得到强有力的稳定。因此，这些变异很可能在更大的社区中保持不变。因此，种内和种间的多样性在进化过程中可能相互支持。
How biodiversity is maintained in ecosystems is a central issue in ecology. According to the evolutionary theory, heritable variations between individuals are important for the generation of species diversity, linking both intra and interspecific variations. The present food web model shows that intraspecific variations via natural selection also play crucial roles in maintaining the stability of large communities with diverse species. In particular, our computations indicate that larger communities need more intraspecific variation to be maintained and are powerfully stabilized when multiple traits are variable. Consequently, these variations are likely to be maintained in larger communities. Hence, intra and interspecific diversities may support each other during evolution.