Convergent structure of multitrophic communities over three continents.
Convergent structure of multitrophic communities over three continents.
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DOI：
10.1111/ele.12183
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发表时间：
2013-12
期刊：
影响因子：
8.8
通讯作者：
Simon T. Segar;R. A. S. Pereira;S. Compton;J. Cook
中科院分区：
文献类型：
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作者：
Simon T. Segar;R. A. S. Pereira;S. Compton;J. Cook
生态学理论预测，使用相同资源的社区应该具有相似的结构，但对殖民和生态位转移的进化限制可能会阻碍这种趋同。利用无花果果实，首先进化约75MYA的黄蜂的多营养社区，不显示长期的“遗传”的分类（谱系）组成或物种多样性。然而，三大洲的群落在我们定义的五个昆虫公会的存在和相对丰富的生态上已经融合。有些类群在每个群落中占据相同的生态位（系统发生生态位保守主义）。然而，我们表明，生态群落结构的整体收敛也取决于由居民血统和其他昆虫血统的本地殖民无花果的生态位变化的组合。我们的研究探索了新的领域，并开发了新的启发式工具，结合生态学和生物发生学，以解决植物上昆虫复杂的多营养群落的模式，其中包括陆地生物多样性的很大一部分。
Ecological theory predicts that communities using the same resources should have similar structure, but evolutionary constraints on colonisation and niche shifts may hamper such convergence. Multitrophic communities of wasps exploiting fig fruits, which first evolved about 75MYA, do not show long-term 'inheritance' of taxonomic (lineage) composition or species diversity. However, communities on three continents have converged ecologically in the presence and relative abundance of five insect guilds that we define. Some taxa fill the same niches in each community (phylogenetic niche conservatism). However, we show that overall convergence in ecological community structure depends also on a combination of niche shifts by resident lineages and local colonisations of figs by other insect lineages. Our study explores new ground, and develops new heuristic tools, in combining ecology and phylogeny to address patterns in the complex multitrophic communities of insect on plants, which comprise a large part of terrestrial biodiversity.