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首页> 外文期刊>Brazilian Archives of Biology and Technology >Influence of lagoons size and prey availability on the wading birds (Ciconiiformes) in the upper Paraná river floodplain, Brazil
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Influence of lagoons size and prey availability on the wading birds (Ciconiiformes) in the upper Paraná river floodplain, Brazil

机译：泻湖的大小和猎物的可利用性对巴西巴拉那河上游平原上的涉水鸟（Ciconiiformes）的影响

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摘要

The influence of lagoons size and prey availability on the Ciconiiformes in the upper Paraná river floodplain, Brazil, were analysed. The Ciconiiformes census was conducted quarterly in 2002, simultaneously to the fish census (gill nets and seining nets). There was strong relationship between the lagoons size and birds abundance, but modest relationship of lagoons size with the birds diversity and number of species. The presence of Ciconiiformes in the lagoons was better predicted by the fish density in seining nets than by the fish capture by unit of effort in gill nets. Except in the flood, there was strong relationship between the fishes density and birds relative abundance, and more modest relationship of the fishes density with birds diversity and number of species. The lagoon's size and prey availability were strong predictors of Ciconiiformes abundance and relative abundance, respectively. However, environmental variables not analysed probably could have significant influence in the determination of the birds diversity and number of species.
机译：分析了泻湖的大小和猎物的可利用性对巴西巴拉那河上游平原上的Ciconiiformes的影响。 Ciconiiformes普查于2002年每季度进行一次，同时进行了鱼类普查（刺网和围网）。泻湖的大小和鸟类的丰度之间存在很强的关系，但泻湖的大小与鸟类的多样性和物种数量之间的关系适中。用围网中的鱼密度比用刺网中的单位捕捞量更好地预测泻湖中的icon虫的存在。除洪水外，鱼类密度与鸟类相对丰度之间存在很强的关系，鱼类密度与鸟类多样性和物种数量之间的关系较为适度。泻湖的大小和猎物的可利用性分别是Ciconiiformes丰度和相对丰度的有力预测指标。但是，未分析的环境变量可能会在确定鸟类多样性和物种数量方面产生重大影响。

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