DOI: 10.1016/j.scitotenv.2020.137397
论文题名: Diverging taxonomic and functional trajectories following disturbance in a Neotropical forest
作者: Mirabel A. ; Hérault B. ; Marcon E.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 720 语种: 英语
英文关键词: Community ecology
; Disturbance trajectories
; Intermediate disturbance hypothesis
; Mid-term resilience
; Neotropical forests
; Taxonomic and functional biodiversity
Scopus关键词: Biodiversity
; Ecology
; Large dataset
; Redundancy
; Trajectories
; Tropics
; Community ecology
; Functional biodiversity
; Intermediate disturbance hypothesis
; Mid-term resilience
; Neotropical forests
; Forestry
; aboveground biomass
; biodiversity
; community composition
; community ecology
; environmental disturbance
; forest ecosystem
; taxonomy
; trajectory
; tropical forest
; article
; biodiversity
; biomass
; community ecology
; life history trait
; Neotropics
; plant leaf
; plant stem
; remission
; tropical rain forest
英文摘要: In the current global change context, it is urgent to anticipate the fate of tropical forests. This means understanding tree community response to disturbance and the underlying processes. In that respect, we aim here to clarify taxonomic and functional post-disturbance trajectories, and determine the scope of the Intermediate Disturbance Hypothesis (IDH) that remains debated in tropical forests. We analyzed community trajectories following a disturbance gradient from 10 to 60% of above-ground biomass loss in a Neotropical forest over 30 years. We considered trajectories along time of community taxonomic and functional trajectories in terms of richness, evenness, composition, and redundancy. We based on the annual botanical inventories of 75 ha of a Neotropical forest and on large trait datasets comprising seven leaf, stem, and life-history traits. We identified a decoupling between taxonomic composition, differing among communities, and functional composition, similar among communities and convergent in the functional space. The taxonomic diversity followed humped-shaped trajectories along time after disturbance depending on the initial disturbance intensity, which validated the IDH (Intermediate Disturbance Hypothesis). The functional diversity trajectories, however, were homogeneous among plots and dismissed the IDH. We explained this decoupling by the variations in community functional redundancy that mitigated the functional impact of disturbance. Although consistent, the recovery of community composition, diversity, and redundancy remained divergent from the initial state after 30 years. These results acknowledged the need of decades-long cycles without disturbance to ensure community complete recovery. © 2020 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158098
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: UMR EcoFoG, AgroParistech, CNRS, Cirad, INRA, Université des Antilles, Université de Guyane, French Guiana; INPHB (Institut National Polytechnique Félix Houphouët Boigny), Yamoussoukro, Cote d'Ivoire
Recommended Citation:
Mirabel A.,Hérault B.,Marcon E.. Diverging taxonomic and functional trajectories following disturbance in a Neotropical forest[J]. Science of the Total Environment,2020-01-01,720