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首页> 外文期刊>Journal of Field Ornithology >Adoption of unrelated young by greater rheas
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Adoption of unrelated young by greater rheas

机译：较大的流浪者收养无关的年轻人

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摘要

the benefits, if any, of the adoptive behavior of mal Greater Rheas (Rhea amer- icana) towards unrelated young while leading their offspring are not known. Therefore, we quantified adoption by Rheas in an agricultural area of Rio Grande do Sul, Brazil, in order to quantify the potential benefits and the recipients of these benefits. Adult males frequently adopted (23/100), were more vigilant and protective than non-adopters, and ended up leading larger groups of young than non-adopting males. The adopted chicks were usually not more than 1-wk old and survived in greater proportion than the adopter's own offspring.
机译：尚不知道，大不列颠美洲大麦（Rhea americana）对无亲属的幼仔在领养后代时的收养行为是否有好处。因此，我们量化了Rheas在巴西南里奥格兰德州农业地区的收养情况，以量化潜在利益和这些利益的接受者。经常收养的成年男性（23/100），比不收养的男性更警惕和保护，最终比不收养的男性领导更多的年轻人。被收养的小鸡通常不超过一周大，并且比被收养者的后代存活的比例更高。

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