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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea
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Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea

机译：全新世象海豹的分布意味着罗斯海的气候比现在温暖

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摘要

We show that southern elephant seal (Mirounga leonina) colonies existed proximate to the Ross Ice Shelf during the Holocene, well south of their core sub-Antarctic breeding and molting grounds. We propose that this was due to warming (including a previously unrecognized period from approximate to 1,100 to 2,300 C-14 yr B.P.) that decreased coastal sea ice and allowed penetration of warmer-than-present climate conditions into the Ross Embayment. If, as proposed in the literature, the ice shelf survived this period, it would have been exposed to environments substantially warmer than present.
机译：我们表明，在全新世期间，南部象海豹（Mirounga leonina）殖民地存在于罗斯冰架附近，远在其南亚次大陆繁育和蜕皮场的南部。我们认为，这是由于变暖（包括以前无法识别的大约从公元前1100年到2,300 C-14 yr）导致沿海海冰减少，并使比现在更温暖的气候条件渗透到了Ross Embayment。如果如文献所述，如果冰架在此期间幸存下来，那么它将被暴露在比目前温度更高的环境中。

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