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Vagrant Antarctic fur seals, Arctocephalus gazella,in southern Chile

机译:智利南部流浪的南极海狗,Arctocephalus gazella

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The Antarctic fur seal, Arctocephalus gazella, in the eastern South Pacific Ocean, first reported on Hoste Island, Cape Horn in 1973, and then on the Juan Fernandez Archipelago in 1982 and 1983, was recorded again in October and December 2009 on the southern coast of Chile. Three different individuals were seen simultaneously on a single day at Punta Dungenes, Magellan Strait, and a fourth individual was sighted at the northeastern coast of Almirantazgo Sound, Tierra del Fuego. These records represent the first sightings of live Arctocephalus gazella in southern Chile. Although it is difficult to establish both their origin and rationale for dispersion outside of their distribution range, the substantial breeding population recovery in South Georgia and food shortages during the breeding and post-breeding season are suggested as possible explanations.
机译:南太平洋东部的南极海狗Arctocephalus gazella,最早于1973年在合恩角的Hoste岛上报道,然后于1982年和1983年在胡安·费尔南德斯群岛上报道,并于2009年10月和2009年12月在南海岸再次记录智利。一天同时在麦哲伦海峡的蓬塔·邓金斯(Punta Dungenes)看到了三个不同的人,在火地岛(Tierra del Fuego)的Almirantazgo Sound东北海岸看到了另一个人。这些记录是智利南部首次见到活Arctocephalus瞪羚的发现。尽管很难确定其起源和分布范围以外的分布原理,但建议在佐治亚州南部大量繁殖种群的恢复以及繁殖和繁殖后季节的食物短缺被认为是可能的解释。

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