Scopus记录号: 2-s2.0-85062691194
论文题名: When do herbivorous insects compete? A phylogenetic meta-analysis
作者: Bird G. ; Kaczvinsky C. ; Wilson A.E. ; Hardy N.B.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
语种: 英语
英文关键词: Competition
; enemy-mediated
; indirect competition
; plant-mediated
; tri-trophic interactions
英文摘要: When herbivorous insects interact, they can increase or decrease each other's fitness. As it stands, we know little of what causes this variation. Classic competition theory predicts that competition will increase with niche overlap and population density. And classic hypotheses of herbivorous insect diversification predict that diet specialists will be superior competitors to generalists. Here, we test these predictions using phylogenetic meta-analysis. We estimate the effects of diet breadth, population density and proxies of niche overlap: phylogenetic relatedness, physical proximity and feeding-guild membership. As predicted, we find that competition between herbivorous insects increases with population density as well as phylogenetic and physical proximity. Contrary to predictions, competition tends to be stronger between than within feeding guilds and affects specialists as much as generalists. This is the first statistical evidence that niche overlap increases competition between herbivorous insects. However, niche overlap is not everything; complex feeding guild effects indicate important indirect interactions. © 2019 John Wiley & Sons Ltd/CNRS 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122758
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Entomology and Plant Pathology, Auburn University, Auburn, AL, United States; School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, United States
Recommended Citation:
Bird G.,Kaczvinsky C.,Wilson A.E.,et al. When do herbivorous insects compete? A phylogenetic meta-analysis[J]. Ecology Letters,2019-01-01