globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85058423158
论文题名:
The strength of ecological subsidies across ecosystems: a latitudinal gradient of direct and indirect impacts on food webs
作者: Montagano L.; Leroux S.J.; Giroux M.-A.; Lecomte N.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:2
起始页码: 265
结束页码: 274
语种: 英语
英文关键词: Allochthonous ; apparent interactions ; latitude ; macroecology ; meta-analysis ; meta-ecosystem
英文摘要: Material and energy flows among ecosystems can directly and indirectly drive ecosystem functions. Yet, how populations of consumers respond to allochthonous inputs at a macroecological scale is still unclear. Using a meta-analysis spanning several biomes, we show that the abundance of recipient populations is 36–57% larger with increased allochthonous inputs. The strength of direct effects on the recipients of these inputs as well as the indirect effects on the consumers of these recipients (i.e. ascending indirect effects) are constant across a latitudinal gradient spanning subtropical, arid, temperate, boreal and arctic ecosystems. However, indirect effect on the in situ resources of the input recipient (i.e. descending indirect effects) decreases with latitude. Our results suggest that the influence of allochthonous inputs can vary across large-scale gradients of ecosystem productivity and may be driven by the types of trophic interactions within recipient food webs. © 2018 John Wiley & Sons Ltd/CNRS
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122738
Appears in Collections:气候变化事实与影响

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作者单位: Department of Biology, Université de Moncton, Moncton, NB E1A 3E9, Canada; Canada Research Chair in Polar and Boreal Ecology and Centre d’études nordiques, Université de Moncton, Moncton, NB E1A 3E9, Canada; Department of Biology, Memorial University, St-John's, NL A1B 3X9, Canada; K.-C.-Irving Chair in Environmental Sciences and Sustainable Development, Université de Moncton, Moncton, NB E1A 3E9, Canada

Recommended Citation:
Montagano L.,Leroux S.J.,Giroux M.-A.,et al. The strength of ecological subsidies across ecosystems: a latitudinal gradient of direct and indirect impacts on food webs[J]. Ecology Letters,2019-01-01,22(2)
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