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首页> 外文期刊>Oryx >Good intentions gone wrong: did conservation management threaten Endangered huemul deer Hippocamelus bisulcus in the future Patagonia National Park?
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Good intentions gone wrong: did conservation management threaten Endangered huemul deer Hippocamelus bisulcus in the future Patagonia National Park?

机译：好的意图错了：在未来的巴塔哥尼亚国家公园中，保护管理是否威胁到濒临灭绝的huemul鹿Hippocamelus bisulcus？

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Conservation interventions increasingly involve active management of relative species abundances, especially when taxa of conservation concern are threatened by complex food web interactions. Unfortunately, the complexity of such interspecific interactions means that well-meaning management interventions can have unexpected, sometimes detrimental, effects on the species they are intended to protect. Here we report that the abrupt removal of an abundant non-native prey species (domestic sheep) and the cessation of predator control, actions intended to protect huemul deer Hippocamelus bisulcus in the future Patagonia National Park, appear to have had negative effects on this Endangered ungulate. During and following the changes in predator-prey management, predation of huemul fawns and females older than 1 year by native culpeo foxes Lycalopex culpaeus and pumas Puma concolor increased 3- and 5-fold, respectively. Predictions from demographic models suggest that elevated mortality rates of female huemul older than 1 year will, on average, cause this population of huemul to decline. These results highlight risks of unintended consequences when aggressive management actions are taken to protect taxa embedded in complex food webs. They also suggest that careful consideration of both inter- and intra-trophic level effects among all species in a system is warranted before conservation interventions are undertaken.
机译：保护干预越来越多地涉及对相对物种丰富度的积极管理，特别是当关注保护的分类单元受到复杂食物网络相互作用的威胁时。不幸的是，这种种间相互作用的复杂性意味着善意的管理干预措施可能对其打算保护的物种产生意想不到的，有时甚至是有害的影响。在这里我们报告说，突然移走大量非本地猎物（家养绵羊）和停止捕食者控制，旨在保护未来巴塔哥尼亚国家公园中的美洲驼鹿河马双耳的行动，似乎对该濒危物种产生了负面影响有蹄类动物。在捕食者-捕食者管理发生变化期间和之后，本地美洲狮狐狸Lycalopex culpaeus和美洲狮美洲狮美洲狮对美洲驼小鹿和大于1岁雌性的捕食分别增加了3倍和5倍。人口统计学模型的预测表明，平均年龄超过1岁的雌性huemul死亡率升高平均会导致其数量下降。这些结果突显了采取积极的管理措施来保护嵌入复杂食品网中的分类单元的意外后果的风险。他们还建议，在采取保护措施之前，必须仔细考虑系统中所有物种之间的营养水平和营养水平的影响。

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