Novel trophic interactions under climate change promote alpine plant coexistence

doi:10.1126/science.abd7015

GSTDTAP > 气候变化

DOI	10.1126/science.abd7015
	Novel trophic interactions under climate change promote alpine plant coexistence
	Patrice Descombes; Camille Pitteloud; Gaëtan Glauser; Emmanuel Defossez; Alan Kergunteuil; Pierre-Marie Allard; Sergio Rasmann; Loïc Pellissier
	2020-12-18
发表期刊	Science
出版年	2020
英文摘要	Climate warming causes shifts in the distributions of organisms and different organisms may move at different rates, resulting in changes in the composition and functioning of ecological communities. These effects are rarely considered in forecasts about the effects of climate change on biodiversity. Using experimental translocations, Descombes et al. investigated how differential upslope migration in alpine plants and their insect herbivores affects community interactions. Lowland herbivores modify the three-dimensional vegetation structure at higher altitudes, and this modified vegetation structure favors the coexistence of plant species, especially by favoring small-stature species. Reorganized trophic interactions will play an important role in driving plant community changes under future climate change. Science , this issue p. [1469][1] Herbivory and plant defenses exhibit a coupled decline along elevation gradients. However, the current ecological equilibrium could be disrupted under climate change, with a faster upward range shift of animals than plants. Here, we experimentally simulated this upward herbivore range shift by translocating low-elevation herbivore insects to alpine grasslands. We report that the introduction of novel herbivores and increased herbivory disrupted the vertical functional organization of the plant canopy. By feeding preferentially on alpine plants with functional traits matching their low-elevation host plants, herbivores reduced the biomass of dominant alpine plant species and favored encroachment of herbivore-resistant small-stature plant species, inflating species richness. Supplementing a direct effect of temperature, novel biotic interactions represent a neglected but major driver of ecosystem modifications under climate change. [1]: /lookup/doi/10.1126/science.abd7015
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/308368
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Patrice Descombes,Camille Pitteloud,Gaëtan Glauser,et al. Novel trophic interactions under climate change promote alpine plant coexistence[J]. Science,2020.
APA	Patrice Descombes.,Camille Pitteloud.,Gaëtan Glauser.,Emmanuel Defossez.,Alan Kergunteuil.,...&Loïc Pellissier.(2020).Novel trophic interactions under climate change promote alpine plant coexistence.Science.
MLA	Patrice Descombes,et al."Novel trophic interactions under climate change promote alpine plant coexistence".Science (2020).