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 .
