Colour polymorphism influences species' range and extinction risk
Colour polymorphism influences species' range and extinction risk
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颜色多态性影响物种的范围和灭绝风险
DOI：
10.1098/rsbl.2019.0228
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发表时间：
2019
期刊：
影响因子：
3.3
通讯作者：
Noriyuki Suzuki
中科院分区：
文献类型：
--
作者：
Takahashi Yuma;Noriyuki Suzuki
预计种群中的多态性将提高种群的增长率和稳定性，从而扩大地理分布，减轻物种灭绝的风险。然而，这种颜色多态性的生态后果的普遍性仍然不确定。在这里，通过比较的方法，我们评估了颜色多态性是否影响一些豆娘、蝴蝶和脊椎动物群体的气候生态位宽度和灭绝风险。在所有分类群中，多态物种的气候生态位宽度大于单态物种，灭绝风险也低于单态物种。结果表明，颜色多态性有利于范围扩展和物种延续。
Polymorphisms in a population are expected to increase the growth rate and the stability of the population, leading to the expansion of geographical distribution and mitigation of extinction risk of a species. However, the generality of such ecological consequences of colour polymorphism remains uncertain. Here, via a comparative approach, we assessed whether colour polymorphisms influence climatic niche breadth and extinction risk in some groups of damselflies, butterflies and vertebrates. The climatic niche breadth was greater, and extinction risk was lower in polymorphic species than in monomorphic species in all taxa analysed. The results suggest that colour polymorphism facilitates range expansion and species persistence.