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Interspecific interactions in phytophagous insects revisited: a quantitative assessment of competition theory.
Ecology Letters ( IF 7.6 ) Pub Date : 2007-09-15 , DOI: 10.1111/j.1461-0248.2007.01093.x
Ian Kaplan 1 , Robert F Denno
Affiliation  

The importance of interspecific competition is a highly controversial and unresolved issue for community ecology in general, and for phytophagous insects in particular. Recent advancements, however, in our understanding of indirect (plant- and enemy-mediated) interactions challenge the historical paradigms of competition. Thus, in the context of this rapidly developing field, we re-evaluate the evidence for interspecific competition in phytophagous insects using a meta-analysis of published studies. Our analysis is specifically designed to test the assumptions underlying traditional competition theory, namely that competitive interactions are symmetrical, necessitate spatial and temporal co-occurrence, and increase in intensity as the density, phylogenetic similarity, and niche overlap of competing species increase. Despite finding frequent evidence for competition, we found very little evidence that plant-feeding insects conform to theoretical predictions for interspecific competition. Interactions were highly asymmetrical, similar in magnitude within vs. between feeding guilds (chewers vs. sap-feeders), and were unaffected by the quantity of resources removed (% defoliation). There was mixed support for the effects of phylogeny, spatial/temporal separation, and the relative strength of intra- vs. interspecific competition. Clearly, a new paradigm that accounts for indirect interactions and facilitation is required to describe how interspecific competition contributes to the organization of phytophagous insect communities, and perhaps to other plant and animal communities as well.

中文翻译:

再次探讨了植物吞噬昆虫的种间相互作用:竞争理论的定量评估。

一般而言,种间竞争的重要性对于社区生态学,尤其是对于食植物昆虫而言,是一个极富争议性且尚未解决的问题。但是,在我们对间接(植物和敌人介导的)相互作用的理解中,最近的进步挑战了竞争的历史范式。因此,在这个快速发展的领域中,我们使用已发表研究的荟萃分析,重新评估了噬菌体昆虫种间竞争的证据。我们的分析是专门为测试传统竞争理论所基于的假设而设计的,即竞争相互作用是对称的,需要时空共生,并且随着竞争物种的密度,系统相似性和生态位重叠的增加而强度增加。尽管经常找到竞争的证据,但我们发现很少有证据表明以植物为食的昆虫符合种间竞争的理论预测。互动高度不对称,在进食行会之间的相互之间的数量级相似(嚼食与汁液进给者之间),并且不受移除的资源量(落叶百分比)的影响。对于种系发生,空间/时间间隔以及种内竞争与种间竞争的相对强度的影响,存在各种支持。显然,需要一种解释间接相互作用和促进作用的新范式来描述种间竞争如何促进植食性昆虫群落的组织,也许还有助于其他动植物群落。我们发现很少有证据表明以植物为食的昆虫符合种间竞争的理论预测。互动高度不对称,在进食行会之间的相互影响程度相似(嚼食与汁液进食者之间),并且不受所移除资源数量(落叶的百分比)的影响。对于种系发生,空间/时间间隔以及种内竞争与种间竞争的相对强度的影响,存在各种支持。显然,需要一种解释间接相互作用和促进作用的新范式来描述种间竞争如何促进植食性昆虫群落的组织,也许还有助于其他动植物群落。我们发现很少有证据表明以植物为食的昆虫符合种间竞争的理论预测。互动高度不对称,在进食行会之间的相互之间的数量级相似(嚼食与汁液进给者之间),并且不受移除的资源量(落叶百分比)的影响。对于种系发生,空间/时间间隔以及种内竞争与种间竞争的相对强度的影响,存在各种支持。显然,需要一种解释间接相互作用和促进作用的新范式来描述种间竞争如何促进植食性昆虫群落的组织,也许还有助于其他动植物群落。饲喂行会之间的相互之间的数量级相似(咀嚼人与树汁给食者之间),并且不受去除的资源量(落叶百分比)的影响。对于种系发生,空间/时间间隔以及种内竞争与种间竞争的相对强度的影响,存在各种支持。显然,需要一种解释间接相互作用和促进作用的新范式来描述种间竞争如何促进植食性昆虫群落的组织,也许还有助于其他动植物群落。饲喂行会之间的大小相近(嚼食与汁液喂食器之间),并且不受资源清除量(落叶的百分比)的影响。对于种系发生,空间/时间间隔以及种内竞争与种间竞争的相对强度的影响,存在各种支持。显然,需要一种解释间接相互作用和促进作用的新范式来描述种间竞争如何促进植食性昆虫群落的组织,也许还有助于其他动植物群落。
更新日期:2019-11-01
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