DOI: 10.1111/geb.13033
论文题名: The potential role of species and functional composition in generating historical constraints on ecosystem processes
作者: Ordonez A. ; Svenning J.-C.
刊名: Global Ecology and Biogeography
ISSN: 1466822X
出版年: 2020
卷: 29, 期: 2 语种: 英语
英文关键词: climatic stability
; disequilibrium dynamics
; functional traits
; historical biogeography
; historical legacy
; palaeoclimate
; response lags
Scopus关键词: biogeography
; environmental change
; environmental conditions
; global change
; Neogene
; paleoclimate
; phylogenetics
; Quaternary
; vascular plant
; Tracheophyta
英文摘要: Aim: Biogeographical processes and past environmental conditions are known to constrain current patterns of species, functional and phylogenetic diversity. An unanswered question is whether such constraints to biodiversity also affect ecosystem processes. Location: Global. Time period: Neogene and Quaternary. Major taxa studied: Vascular plants. Methods: We propose that evolution, migration-lag in response to environmental changes, and extinction may result in historical legacies in current ecosystem composition (species and functional) that can lead to historical legacies in ecosystem processes – that is, deviations from the potential rates or magnitudes of ecosystem processes, given current environmental conditions and the habitat-suitable native species and trait pools that exist under such circumstances. Results: Historical legacies in ecosystem processes may begin with changes in species richness and composition in response to environmental shifts. These changes are mediated by response traits that determine how species react to environmental changes and track suitable environmental conditions. Response traits are often associated with effect traits, which determine the rates and magnitude of ecosystem processes. Via this association, environmentally driven response-trait determined changes in species diversity may cascade to ecosystem processes through effect trait compositional changes. These changes could lead to ecosystem processes deviating from a potential state defined by current environmental conditions and the overall species pool. We populate this conceptual framework with cases that show how historical legacies in biodiversity translate to historical legacies in ecosystem processes, and we discuss the implications of the concept for global change ecology. Main conclusions: We need to rethink our expectations of future ecological dynamics as past, and current, environmental changes may push ecosystem processes away from their environmentally and compositionally defined potential state. © 2019 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159453
Appears in Collections: 气候变化与战略
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作者单位: Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus C, Denmark; Centre for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Aarhus C, Denmark
Recommended Citation:
Ordonez A.,Svenning J.-C.. The potential role of species and functional composition in generating historical constraints on ecosystem processes[J]. Global Ecology and Biogeography,2020-01-01,29(2)