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首页> 外文期刊>Ecological research >Species diversity estimation of ambrosia and bark beetles in temperate mixed forests in Japan based on host phylogeny and specificity
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Species diversity estimation of ambrosia and bark beetles in temperate mixed forests in Japan based on host phylogeny and specificity

机译：基于寄主系统发育和特异性的日本温带混交林氨甲虫和树皮甲虫物种多样性估算

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摘要

Understandings of the effect of host plant phylogeny on the structure of herbivore assemblage is useful for estimating global species richness of herbivores. Here we test the relationship between host plant phylogeny and two assemblages including ambrosia beetle assemblage that have been considered to be the lowest host specificity among plant-dependent guilds. These results of local scale were used for estimating regional species richness by extrapolating to the number of plant order and species in Japan. The estimated numbers were compared with the numbers of described species in Japan. Tree trunks of 17 plant species representing 17 orders of all major lineages of Japanese tree flora were exposed for collecting wood boring beetle species. A total of 12 ambrosia and four bark beetle species were collected. Similarity of both ambrosia and bark beetle assemblages showed a significant negative trend with phylogenetic distance between focal host plant species. The regression model for this relationship was well fit by a linear model whereas previous studies used a semi-log model, which suggests a difference in mechanism of host utilization with host taxonomic levels. Our results showed a broader host range of ambrosia beetle assemblage in temperate forest than to a comparable study in tropical rainforests. Species richness estimated is lower than the described species in Japan, suggesting the need for more samples along the altitudinal gradients for accurate estimation for the Japanese fauna.
机译：了解寄主植物系统发育对草食动物组合结构的影响，有助于估算草食动物的全球物种丰富度。在这里，我们测试了宿主植物系统发育与两个组合之间的关系，这些组合包括被认为是植物依赖性行会中宿主特异性最低的寄主甲虫组合。这些本地规模的结果通过推断日本的植物序和物种数量，被用于估算区域物种的丰富度。将估计数量与日本描述物种的数量进行比较。暴露了代表日本树种所有主要谱系的17序的17种植物的树干，以收集无聊的甲虫物种。总共收集了12种佳肴和4种树皮甲虫。杂草和树皮甲虫组合的相似性显示，寄主寄主植物物种之间的系统发生距离具有显着的负趋势。线性模型很好地拟合了这种关系的回归模型，而先前的研究则使用半对数模型，这表明宿主利用机制与宿主分类学水平存在差异。我们的结果显示，与热带雨林中的可比研究相比，温带森林中的甲虫集合体范围更广。估计的物种丰富度比日本描述的物种低，这表明需要沿海拔梯度增加更多的样本才能对日本动物区系进行准确估计。

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