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Pleistocene reindeer and global warming

机译：更新世的驯鹿与全球变暖

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摘要

Current concerns for the future of reindeer and caribou (Rangifer tarandus) in the far north under conditions of global warming focus on the increased energetic and predation costs associated with warmer winters and on vegetation change and increased insect harassment caused by warmer summers. At the Grotte XVI archaeological site (Dordogne, southwestern France), episodes of summer warming between about 36,000 and 12,000 radiocarbon years ago appear to be associated with lowered relative abundances of reindeer. As the Pleistocene ended and summer temperatures climbed higher, reindeer were extirpated from southern France. A similar phenomenon appears to have occurred here during the prior Eemian interglacial. These records suggest that increased summer temperatures under conditions of global warming may have a direct negative effect on reindeer and caribou populations, including a northward displacement of their southern distributional boundary.
机译：在全球变暖的情况下，目前对最北部的驯鹿和驯鹿（Rangifer tarandus）的未来的关注集中在与冬天变暖相关的能源和捕食成本增加，以及由于夏天变暖导致的植被变化和昆虫骚扰增加。在Grotte XVI考古现场（法国西南部的多尔多涅省），几年前夏季变暖的事件似乎发生在36,000至12,000放射性碳之间，这与驯鹿的相对丰度降低有关。随着更新世的结束和夏季温度的升高，驯鹿从法国南部被灭绝。在先前的Eemian冰期之间，这里似乎发生了类似的现象。这些记录表明，在全球变暖条件下夏季温度升高可能会对驯鹿和驯鹿种群产生直接的负面影响，包括其南部分布边界的北移。

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