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首页> 外文期刊>Oryx >Have Patagonian waterfowl been affected by the introdyction of the American mink Mustela vison?
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Have Patagonian waterfowl been affected by the introdyction of the American mink Mustela vison?

机译：巴塔哥尼亚水禽是否受到美国水貂鼬（Mustela Vison）引进的影响？

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摘要

The American mink Mustela vison has spread widely beyond its native North American range and is associated with problems for the conservation of native species because of its impact as both predator and competitor. We investigated the impact of feral mink on waterfowl in Lanin National Park, south-west Neuquen, Patagonia, Argentina, an area in which the predator is currently expanding. Statistically significant differences were observed in the number of waterfowl species at lakes without mink (7.3 ± SE 0.7) compared to those with mink (4.0 ±SE 0.6). Overall abundance of birds observed per day was higher at lakes without (104.2+ SE 20.6) than with mink (21.2 ±SE 22.3). The great grebe Podiceps major, speckled teal Anas flavir-ostris, Chiloe wigeon Anas sibilatrix and red-gartered coot Fulica armillata were more abundant on water bodies without mink, and flocks of the ashy-headed goose Chloe-phaga poliocephala were larger in areas without mink. Other species, such as the white-tufted grebe Rollandia rolland, coscoroba swan Coscoroba coscoroba, black-necked swan Cygnus melanocoryphus, cinnamon teal Anas cyanoptera, Andean duck Oxyura jamaicensis and Andean gull Larus serranus were never observed in areas harbouring mink. We conclude that at least 12 of the 25 waterfowl species observed are sensitive to the presence of the mink, either being absent or having a lower abundance where mink are present.
机译：美国水貂鼬的生活已广泛传播到其北美本土以外的地区，并且由于其作为捕食者和竞争者的影响而与保护本地物种有关。我们调查了野生貂皮对阿根廷巴塔哥尼亚内乌肯西南西南拉宁国家公园水禽的影响，该地区捕食者目前正在扩张。在没有水貂（7.3±SE 0.7）的湖泊中，与有水貂（4.0±SE 0.6）的湖泊相比，水禽种类的数量有统计学差异。每天观察到的鸟类总体丰度在没有（104.2+ SE 20.6）的湖泊比有貂（21.2±SE 22.3）的湖泊更高。在没有水貂的水体上，大型足虱，斑点蓝绿色的水鸭Anas flavir-ostris，Chiloe wigeon Anas sibilatrix和粉红色的老傻子Fulica armillata含量较高，而在没有水貂的地区，无头鹅鹅Chloe-phaga poliocephala的群较大。貂。在带有水貂的地区从未观察到其他物种，例如白簇生的格罗布Rolandia rolland，科斯柯巴天鹅Coscoroba coscoroba，黑颈天鹅天鹅绒，肉桂蓝绿色阿纳斯蓝翅目，安第斯鸭Oxyura jamaicensis和安第斯鸥Larus serranus。我们得出的结论是，观察到的25种水禽物种中至少有12种对水貂的存在敏感，无论是缺少水貂还是水貂中水貂的丰度都较低。

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  • 来源
    《Oryx》 |2009年第4期|648-654|共7页
  • 作者

    Salvador J. Peris; Javier Sanguinetti; Moises Pescador;

  • 作者单位

    Departamento de Zoologia, Facultad de Biologia, Universidad de Salamanca, 37071 Salamanca, Spain;

    Departamento de Zoologia, Facultad de Biologia, Universidad de Salamanca, 37071 Salamanca, Spain;

    Seccion Tecnica del Parque Nacional Lanin, San Martin de los Andes, Parques Nacionales de Argentina, Neuquen, Argentina;

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  • 正文语种 eng
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  • 关键词

    Argentina; mink; Mustela vison; Patagonia; population impact; waterfowl abundance;

    机译：阿根廷;貂;鼬（Mustela Vison）;巴塔哥尼亚;人口影响;水禽丰度;

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