本文通过动态模型揭示种内竞争（intraspecific competition）对非对称互利系统（asymmetric mutualisms）稳定性的调控作用，提出互利共生耐受区间（tolerance range）概念，为解析植物-传粉者协同进化提供理论框架。 Highlight 这些结果强调了种内竞争和宿主植物与共生体之间 ...

In inland California grasslands, the high densities of alien annual species have altered the growing environment for native perennial grasses. Using variable-density plots, we measured the influence ...

This is a preview. Log in through your library . Abstract (1) The ground area explored by roots (the rooting area) was determined for three sizes of plants of Hilaria rigida in monospecific stands ...