DOI: 10.1111/ddi.13017
论文题名: Long-term monitoring reveals forest tree community change driven by atmospheric sulphate pollution and contemporary climate change
作者: Verrico B.M. ; Weiland J. ; Perkins T.D. ; Beckage B. ; Keller S.R.
刊名: Diversity and Distributions
ISSN: 13669516
出版年: 2020
卷: 26, 期: 3 语种: 英语
英文关键词: beta diversity
; elevational gradients
; generalized dissimilarity modelling
; global change
; montane environments
; species distributions
Scopus关键词: anthropogenic effect
; atmospheric pollution
; climate change
; estimation method
; geothermal gradient
; global change
; mountain environment
; multivariate analysis
; Sentinel
; spatiotemporal analysis
; species diversity
; sulfate
; United States
; Vermont
; Camelidae
; Picea rubens
英文摘要: Aim: Montane environments are sentinels of global change, providing unique opportunities to assess impacts on species diversity. Multiple anthropogenic stressors such as climate change and atmospheric pollution may act concurrently or synergistically in restructuring communities. Thus, a major challenge for conservation is untangling the relative importance of different stressors. Here, we combine long-term monitoring with multivariate community modelling to estimate the anthropogenic drivers shaping forest tree diversity along an elevational gradient. Location: Camels Hump Mountain, Vermont, USA. Methods: We used Generalized Dissimilarity Modelling (GDM) to model spatial and temporal turnover in beta diversity along an elevational gradient over a 50-year period and tested for spatiotemporal shifts in density and elevational distribution of individual species. GDMs were used to predict community turnover as nonlinear functions of changes in elevation, climate and atmospheric pollution. Results: We observed significant shifts in elevational range and density of individual species, which contributed to an overall reduction in the elevational gradient in beta diversity through time. GDMs showed the combined effects of sulphate deposition and temperature as drivers of this temporal reduction in beta diversity. Spatiotemporal changes differed among species, with shifts observed both up- and downslope. For example, in a reversal of a previous upslope range contraction, red spruce (Picea rubens Sarg.) increased in density and shifted downslope since the 1990s, occupying warmer, drier climates. Main conclusion: Our results demonstrate that global change is impacting the stratification of forest tree diversity along elevational gradients, but the responses of individual species are complex and variable in direction. We suggest abiotic drivers may directly impact individual species while also indirectly altering species interactions along elevational gradients. Our approach modelling the drivers of compositional turnover quantifies the rate and amount of change in beta diversity along environmental gradients and serves as a powerful complement to studying species-specific responses. © 2019 The Authors. Diversity and Distributions published by John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158771
Appears in Collections: 气候变化与战略
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作者单位: Plant Biology Department, University of Vermont, Burlington, VT, United States
Recommended Citation:
Verrico B.M.,Weiland J.,Perkins T.D.,et al. Long-term monitoring reveals forest tree community change driven by atmospheric sulphate pollution and contemporary climate change[J]. Diversity and Distributions,2020-01-01,26(3)