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物种多样性

物种多样性生物多样性的简单度量,它只计算给定地区的不同物种数量。在数学公式里用代表。

物种的丰富程度跟纬度呈明显的反比关系。即使考虑高纬度地区地表面积减少等因素的修正,离赤道越远,物种就越稀少。

物种多样性的其它度量包括种群的稀有程度,以及他们具备的进化稀有特征的数量。

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物种多样性
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