speciation
speciation 英 [,spiːʃɪ'eɪʃ(ə)n;,spiːs-] 美 [,spisi'eʃən]
n. [进化] 物种形成
名词复数:speciations
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- n. [进化] 物种形成
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1. Microevolution looks at changes within species overtime — changes that may be preludes to speciation, the origin of newspecies.
物种的微观进化随时都在发生——变化可能导致物种形成，这就是新物种的起源。
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2. 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。
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3. Researchers usually link speciation to some sort of physical barrier, such as a river or mountain, which divides populations and causes them to evolve independently.
研究人员通常把物种形成与某种物理屏障相联系，如河流或山脉，这种屏障分隔种群，使它们独立进化。
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