Species diversity estimation of ambrosia and bark beetles in temperate mixed forests in Japan based on host phylogeny and specificity
Species diversity estimation of ambrosia and bark beetles in temperate mixed forests in Japan based on host phylogeny and specificity
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基于寄主系统发育和特异性的日本温带混交林豚草和树皮甲虫的物种多样性估计
DOI：
10.1007/s11284-013-1123-0
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发表时间：
2013
影响因子：
2
通讯作者：
Naoto Kamata
中科院分区：
文献类型：
--
作者：
Kenji Watanabe;Masashi Murakami;Toshihide Hirao;Naoto Kamata
了解寄主植物系统发育对食草动物组合结构的影响有助于估计全球食草动物物种丰富度。在这里，我们测试了宿主植物系统发育与包括豚草甲虫组合在内的两个组合之间的关系，这两个组合被认为是依赖植物的行会中最低的宿主特异性。这些当地规模的结果用于通过推断日本植物目和物种的数量来估计区域物种丰富度。将估计数量与日本描述的物种数量进行了比较。为了收集蛀木甲虫物种，暴露了代表日本树木植物区系所有主要谱系 17 目的 17 种植物的树干。总共收集了 12 种豚草和 4 种树皮甲虫。豚草和树皮甲虫组合的相似性随着焦点寄主植物物种之间的系统发育距离呈现显着的负趋势。这种关系的回归模型非常适合线性模型，而以前的研究使用半对数模型，这表明宿主利用机制与宿主分类水平存在差异。我们的结果显示，与热带雨林中的类似研究相比，温带森林中豚草甲虫群落的宿主范围更广。估计的物种丰富度低于日本所描述的物种，这表明需要沿海拔梯度收集更多样本，以便准确估计日本动物群。
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.