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首页> 外文期刊>Ecological research >The disruption of habitat isolation among three Hexagrammos species by artificial habitat alterations that create mosaic-habitat
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The disruption of habitat isolation among three Hexagrammos species by artificial habitat alterations that create mosaic-habitat

机译：人工生境的改变导致镶嵌生境的改变，从而破坏了三个六卦属物种之间的生境隔离

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In the coastal areas of Japan, three species of greenling (Hexagrammos spp.) can hybridize. In a natural reef setting we showed that Hexagrammos agrammus and H. octogrammus established their breeding territories in a shallow area where seaweed was abundant, whereas H. otakii established breeding territories in a deep area that was sparsely covered with seaweed. This difference in habitat use resulted in H. otakii being distributed separately from the other two species, thereby reducing the potential for hybridization. However, all the three species co-occurred in an artificial area near a breakwater. This area is characterized by steep slopes and complex stacked concrete structures, which create a mosaic-habitat consisting of a shallow environment with seaweed and a deep environment with sparse seaweed, allowing the three species to breed within a single area. Our results suggest that man-made structures can create an artificial mosaic-habitat that can disrupt habitat isolation and promote hybridization between species.
机译：在日本的沿海地区，三种绿化（Hexagrammos spp。）可以杂交。在天然珊瑚礁环境中，我们发现六边形文法和八角形目菌在繁茂的海藻浅层地区建立了繁殖区，而OTakii则在稀疏的海藻覆盖的深层地区建立了繁殖区。栖息地使用方式的这种差异导致otakii人与其他两个物种分开分布，从而降低了杂交的可能性。但是，这三种物种都同时发生在防波堤附近的人工区域。该地区的特点是陡峭的斜坡和复杂的堆叠混凝土结构，形成了由浅海带海藻和深海带稀疏海藻组成的镶嵌栖息地，使这三个物种可以在一个区域内繁殖。我们的结果表明，人造结构可以创建人造马赛克栖息地，从而破坏栖息地的隔离并促进物种之间的杂交。

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