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首页> 外文期刊>The wilson journal of ornithology >Invasive Parasites and the Fate of Darwin's Finches in the Galapagos Islands: The Case of the Vegetarian Finch (Platyspiza crassirostris)
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Invasive Parasites and the Fate of Darwin's Finches in the Galapagos Islands: The Case of the Vegetarian Finch (Platyspiza crassirostris)

机译：加拉巴哥群岛上的入侵性寄生虫与达尔文雀的命运：以素食雀科为例（Platyspiza crassirostris）

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摘要

The Vegetarian Finch, Platyspiza crassirostris, is a relatively unstudied Darwin's finch that appears to be in decline in the Galapagos Islands. We monitored 11 nests of Vegetarian Finches during 2013 and 2014 on Santa Cruz Island, Galapagos, and found that 10 of these were infested with an invasive parasitic fly, Philornis downsi. This is the first report of P. downsi attacking this bird species. The number of P. downsi in nests of Vegetarian Finches was higher than for other Darwin's finch species, but nestling mortality was relatively low. We hypothesize that both of these trends may be related to fact that the Vegetarian Finch is one of the largest-bodied species of Darwin's finches. We also consider the conservation implications of P. downsi parasitism for populations of vegetarian finches and other Darwin's finch species in the Galapagos Islands.
机译：素食雀科，Platyspiza crassirostris，是一种相对未被研究的达尔文雀科，在加拉帕戈斯群岛似乎正在减少。我们在2013年和2014年期间监测了加拉帕戈斯省圣克鲁斯岛上的11只素食雀巢，发现其中10只被侵染性寄生蝇Philornis downsi侵扰。这是P. downsi攻击该鸟类的第一份报告。素食雀巢中的P. downsi数量高于其他达尔文雀科物种，但雏鸟死亡率相对较低。我们假设这两种趋势都可能与素食雀科是达尔文雀科最大体的物种之一有关。我们还考虑到加拉帕戈斯群岛的P. downsi寄生虫对素食雀科和其他达尔文雀科物种的保护意义。

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