Sex-specific responses to climate change in plants alter population sex ratio and performance
Sex-specific responses to climate change in plants alter population sex ratio and performance
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DOI：
10.1126/science.aaf2588
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发表时间：
2016-07-01
期刊：
影响因子：
56.9
通讯作者：
Mooney, Kailen A.
中科院分区：
文献类型：
--
作者：
Petry, William K.;Soule, Judith D.;Mooney, Kailen A.
在许多物种中，雄性和雌性在生态上是不同的，但对气候变化的反应是否具有性别特异性尚不清楚。我们记录了四十多年来，在海拔1800米的范围内，缬草植物对气候变化的性别特异性反应。海拔的增加与水的可用性和雌性频率的增加有关，可能是由于性别特异性的水利用效率和存活率。最近的干旱化导致雄性的频率以每十年175米的速度向上移动，这一特征移动的速度超过了报道的物种范围移动的一个数量级。雄蜂频率的增加降低了花粉限制，增加了结实率。结合先前关于节肢动物性别特异性群落的研究，这些结果强调了性别之间的生态差异在调节对气候变化的生物反应中的重要性。
Males and females are ecologically distinct in many species, but whether responses to climate change are sex-specific is unknown. We document sex-specific responses to climate change in the plant Valeriana edulis (valerian) over four decades and across its 1800-meter elevation range. Increased elevation was associated with increased water availability and female frequency, likely owing to sex-specific water use efficiency and survival. Recent aridification caused male frequency to move upslope at 175 meters per decade, a rate of trait shift outpacing reported species' range shifts by an order of magnitude. This increase in male frequency reduced pollen limitation and increased seedset. Coupled with previous studies reporting sex-specific arthropod communities, these results underscore the importance of ecological differences between the sexes in mediating biological responses to climate change.