Some researchers have argued that speciation rates, both terrestrial and marine, could be much higher in the tropics, making them a "cradle" of biodiversity.

一些专家认为，在热带地区的陆地和海域，物种形成的机率更高，这样就使热带地区成为了生物多样性的摇篮。

Reinforcement is required for both parapatric and sympatric speciation.

对于领域性的和同域性的物种形成，强化是必需的。

Speciation of Zn, Mn, Fe, Ca, Mg in Ligusticum wallichii Franch was analyzed by atomic absorptionspectrometry.

利用原子吸收分光光度法对中药川芎中锌、锰、铁、钙、镁五种元素的形态进行了研究。

Subspecies is a stage during process of speciation.

亚种是物种形成过程中的一个阶段。

In sympatric speciation, species diverge while inhabiting the same place.

在同域物种形成中，居住在同一个地方的物种分歧化。