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首页> 外文期刊>The Emu >Breeding phenology and nest survival of Cinereous (Circus cinereus) and Long-winged (C. buffoni) Harriers in the agricultural landscapes of north-east Patagonia, Argentina
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Breeding phenology and nest survival of Cinereous (Circus cinereus) and Long-winged (C. buffoni) Harriers in the agricultural landscapes of north-east Patagonia, Argentina

机译：在阿根廷东北巴塔哥尼亚农业景观中养殖婴儿和巢穴生存和巢穴生存和长翼（C. Bufdoni）鹞的鹞

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摘要

We present novel data on breeding ecology and nest survival of the Cinereous (Circus cinereus) and Long-winged (C. buffoni) Harriers in modified grasslands of southern Argentina and we evaluate variations in daily nest survival rates (DSR) in relation to temporal and habitat variables. We studied three mixed nesting colonies embedded in agricultural landscapes along a road. We found that DSR decreased linearly with time of breeding and increased with vegetation height above the nest and the distance to the road. This is the first and most complete reproductive study concerning two species of conservation concern, namely the Cinereous and Long-winged Harriers in Patagonia. Our study provides valuable and novel insights into the population dynamics of these little-known species.
机译：我们提出了关于南阿根廷南部修饰草原的养殖生态和巢穴生存和长期（C. Bufdoni）鹞的新型数据，我们评估了日常巢生存率（DSR）的变化与时间和 栖息地变量。 我们研究了三个混合筑巢殖民地，沿着一条道路嵌入农业景观中。 我们发现DSR随着育种时间而线性下降，并随着巢穴上方的植被高度和到道路的距离而增加。 这是关于两种保护问题的第一个也是最完全的生殖研究，即巴塔哥尼亚的百分之一条和长翼鹞。 我们的研究为这些鲜为人知的物种的人口动态提供了有价值的和新的见解。

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