On intraspecific polymorphism in pollen morphology of caragana microphylla lam . And its two affinities .

小叶锦鸡儿及其两个近缘种花粉形态种内多态性研究。

There are as well as density-dependent biological factors such as disease , predation , and intraspecific competition .

还有密度制约的生物因素，诸如病害、捕食和种内竞争等。

Application of competition index in assessing intraspecific and interspecific spatial relations between manchurian ash and dahurian larch .

利用竞争指数评价水曲柳落叶松种内种间空间竞争关系。

Repeated phenotypic evolution can occur at both the inter - and intraspecific level and is especially prominent in domesticated plants , where artificial selection has favoured the same traits in many different species and varieties .

表型的重复进化即可以在种内也可以在种间发生，尤其对于受到驯化的植物更是如此，在许多不同物种和品种中，人工选择可能倾向于对同一个性状进行选择。