DOI: 10.1111/gcb.12104
论文题名: Temperature-dependent shifts in herbivore performance and interactions drive nonlinear changes in crop damages
作者: Dangles O. ; Herrera M. ; Mazoyer C. ; Silvain J..-F.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 4 起始页码: 1056
结束页码: 1063
语种: 英语
英文关键词: Agricultural pests
; Biodiversity-ecosystem functioning
; Conceptual model
; Crop damage
; Global warming
; Herbivore pest
; Species interactions
; Stress-gradient hypothesis
; Thermal stress
Scopus关键词: biodiversity
; climate change
; crop damage
; ecosystem function
; global warming
; herbivore
; interspecific interaction
; performance assessment
; pest damage
; species richness
; animal
; article
; crop
; ecosystem
; greenhouse effect
; herbivory
; temperature
; Animals
; Crops, Agricultural
; Ecosystem
; Global Warming
; Herbivory
; Temperature
英文摘要: Understanding how and to what extent the influence of temperature on physiological performance scales up to interspecific interactions and process rate patterns remains a major scientific challenge faced by ecologists. Here, we combined approaches developed by two conceptual frameworks in ecology, the stress-gradient hypothesis (SGH), and the biodiversity-ecosystem functioning relationship (B-EF), to test the hypothesis that interspecific difference in thermal performance modulates multiple species interactions along a thermal stress (SGH) and the subsequent richness effects on process rates (B-EF). We designed an experiment using three species of herbivorous agricultural pests with different thermal optima for which we determined how temperature influences the direction and the strength of interaction and subsequent richness effects on crop damage (7 species interaction treatments × 6 temperature treatments × 10 replicates). We showed that both biotic interactions and species richness effects drive variations in crop damages along a thermal stress gradient, and thus have the potential to drive agro-system responses to climate change. To help explain and generalize underlying mechanisms of richness effects on process rates, we further proposed a conceptual model that views interaction outcomes as shifting between positive and negative along a thermal stress depending on species thermal optima. Overall, our study demonstrates that nonlinear effects of temperature on process rates must be a major concern in terms of prediction and management of the consequences of global warming. © 2012 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62478
Appears in Collections: 影响、适应和脆弱性
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作者单位: Institut de Recherche pour le Développement (IRD), UR 072, LEGS-CNRS, UPR 9034, CNRS, Gif-sur-Yvette, Cedex 91198, France; Université Paris-Sud 11, Orsay, Cedex, 91405, France; Pontificia Universidad Católica del Ecuador, Facultad de Ciencias Exactas y Naturales, Quito, Ecuador; Instituto de Ecología, Universidad Mayor San Andrés, Cotacota, La Paz, Bolivia
Recommended Citation:
Dangles O.,Herrera M.,Mazoyer C.,et al. Temperature-dependent shifts in herbivore performance and interactions drive nonlinear changes in crop damages[J]. Global Change Biology,2013-01-01,19(4)