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词汇 Mechanical Isolation
分类 英语词汇 英语翻译词典
释义

Mechanical Isolation

英语例句库

The reproductive isolation among sympatric Pedicularis species is influenced by the differences of pollinator behavior and floral form via ethological isolation and mechanical isolation.

另一方面是通过机械隔离机制，即由熊蜂不同的访花行为以及植物花部结构上的差异避免柱头与熊蜂携带的异种花粉接触。

英语百科

Reproductive isolation

The flowers of many species of Angiosperm have evolved to attract and reward a single or a few pollinator species (insects, birds, mammals). Their wide diversity of form, colour, fragrance and presence of nectar is, in many cases, the result of coevolution with the pollinator species. This dependency on its pollinator species also acts as a reproductive isolation barrier.
In coral reefs, gamete incompatibility prevents the formation of numerous inter-species hybrids.
Mules are hybrids with interspecific sterility.
A hybrid between a polar bear and a brown bear, Rothschild Museum, Tring.

The mechanisms of reproductive isolation or hybridization barriers are a collection of mechanisms, behaviors and physiological processes that prevent the members of two different species that cross or mate from producing offspring, or which ensure that any offspring that may be produced are sterile. These barriers maintain the integrity of a species over time, reducing or directly impeding gene flow between individuals of different species, allowing the conservation of each species’ characteristics.
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