Habitat generalization of a predatory ladybird, Harmonia yedoensis (Coleoptera: Coccinellidae), in an allopatric area with respect to its sibling species Harmonia axyridis
Habitat generalization of a predatory ladybird, Harmonia yedoensis (Coleoptera: Coccinellidae), in an allopatric area with respect to its sibling species Harmonia axyridis
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掠食性瓢虫 Harmonia yedoensis（鞘翅目：瓢虫科）在与其兄弟物种异色瓢虫异域分布的区域的栖息地概括
DOI：
10.1111/ens.12385
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发表时间：
2019
影响因子：
0.9
通讯作者：
Osawa Naoya
中科院分区：
文献类型：
--
作者：
Noriyuki Suzuki;Sugo Junki;Ohata Masaaki;Osawa Naoya
在日本中部，Harmonia yedoensis 是一种只生活在松树栖息地的专业瓢虫，而它的兄弟物种异色瓢虫则是一种多面手，以自然界中多种蚜虫为食。有趣的是，H. axyridisis 不分布于日本南部的琉球群岛。我们假设 H. 的生态位。 yedoensis 应该在琉球群岛分布更广，其竞争物种在日本中部，H. axyridis，不存在。我们进行了实地考察并对已发表的作品进行了调查，以检查 H 的栖息地利用情况。琉球群岛的 yedoensis。我们发现H.琉球群岛的斑叶菊成虫参观了多种落叶乔木，包括野生罗望子、木槿、台湾樱花和马来榕，以及松树。这些观察表明，栖息地泛化已经发生在 H.琉球群岛的 yedoensis 不与 H.异色菊。
In central Japan,Harmonia yedoensisis a specialist ladybird that is confined to pine tree habitats, whereas its sibling speciesHarmonia axyridisis a generalist that feeds on a wide range of aphid species in nature. Interestingly,H. axyridisis not distributed in the Ryukyu Archipelago, southern Japan. We hypothesized that the ecological niche ofH. yedoensisshould be wider in the Ryukyu Archipelago, where its competitor species in central Japan,H. axyridis, is absent. We undertook fieldwork and a survey of published works to examine habitat utilization byH. yedoensisin the Ryukyu Archipelago. We found thatH. yedoensisadults in the Ryukyu Archipelago visited several kinds of deciduous trees, including wild tamarind, Chinese hibiscus, Taiwan cherry and Malayan banyan, as well as pine trees. These observations suggest that habitat generalization has occurred inH. yedoensisin the Ryukyu Archipelago, where it does not compete withH. axyridis.