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不同竞争力的外来种入侵对栖息地毁坏的响应

, PP. 111-117

Keywords: 竞争力,扩散力,外来种入侵,栖息地毁坏

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Abstract:

初步建立了一个不同竞争力外来种入侵的动力模型,并模拟了外来种的竞争力对入侵的影响,以及不同竞争力外来种入侵对栖息地毁坏的响应过程.研究结果表明:(1)外来种入侵首先威胁的是与其竞争力相邻的弱本地种;(2)在外来种成功入侵之后,将导致比其弱的本地种从强到弱依次灭绝;(3)不同竞争力的外来种入侵对栖息地毁坏的响应是随其竞争等级的奇偶性而发生分异,栖息地毁坏对外来种入侵的影响受外来种竞争力和栖息地毁坏程度共同影响.

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