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Avian responses to fragmentation of the Maulino Forest in central Chile

机译：鸟类对智利中部毛利诺森林破碎的反应

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摘要

Depending on the mosaic of habitats that is created, forest fragmentation can reduce the abundance and diversity of forest birds. Temperate deciduous forests in South America are rapidly being replaced by pine plantations, causing changes in habitats for both breeding and migrant birds. We examined differences in avian species richness and abundance in three areas: a reserve with continuous tracts of native forest, forest fragments and pine plantations. Four species were negatively affected by fragmentation, with their abundance declining from continuous forest to pine plantations. Fourteen species were not affected by fragmentation and eight had significantly increased abundance in pine plantations compared to continuous forest. Overall abundance in pooled and ground/under storey birds was higher in forest fragments and pine plantations compared to continuous forest. The abundance of granivo-rous species was higher in the pine plantations than in the forest reserve, but the abundance of insectivorous species was higher in the forest reserve and in forest fragments than in pine plantations. Thus, forest fragmentation affects birds differentially according to their feeding ecology.
机译：根据所创造的栖息地的马赛克，森林碎片化会减少森林鸟类的数量和多样性。南美的温带落叶林正迅速被松树人工林取代，从而导致繁殖鸟类和迁徙鸟类的栖息地发生变化。我们研究了三个地区鸟类物种丰富度和丰度的差异：一个拥有连续片自然森林，森林碎片和松树人工林的保护区。破碎化对四种物种造成了负面影响，其丰富度从连续森林到松树人工林都在下降。与连续森林相比，松林中的14种不受碎片影响，其中8种的丰度显着增加。与连续森林相比，在森林碎片和松树人工林中，池养和地面/地下鸟类的总体丰度更高。松树人工林中的草食物种丰富度高于森林保护区，但森林保护区和森林碎片中食虫性物种的丰度高于松树人工林。因此，森林破碎化根据鸟类的觅食生态对鸟类产生不同的影响。

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