DOI: 10.1111/gcb.13067
论文题名: Climate-induced warming imposes a threat to north European spring ecosystems
作者: Jyväsjärvi J. ; Marttila H. ; Rossi P.M. ; Ala-Aho P. ; Olofsson B. ; Nisell J. ; Backman B. ; Ilmonen J. ; Virtanen R. ; Paasivirta L. ; Britschgi R. ; Kløve B. ; Muotka T.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 12 起始页码: 4561
结束页码: 4569
语种: 英语
英文关键词: Aquifer
; Bryophytes
; Climate change
; Endemic
; Groundwater-dependent ecosystems
; Invertebrates
; Time-series
Scopus关键词: aquifer
; biodiversity
; bryophyte
; climate change
; endemic species
; global warming
; macroinvertebrate
; spring water
; water temperature
; Northern Europe
; bryophytes
; Invertebrata
; animal
; animal dispersal
; biodiversity
; biological model
; Finland
; greenhouse effect
; invertebrate
; moss
; natural spring
; physiology
; plant dispersal
; season
; Sweden
; temperature
; Animal Distribution
; Animals
; Biodiversity
; Bryophyta
; Finland
; Global Warming
; Invertebrates
; Models, Biological
; Natural Springs
; Plant Dispersal
; Seasons
; Sweden
; Temperature
英文摘要: Interest in climate change effects on groundwater has increased dramatically during the last decade. The mechanisms of climate-related groundwater depletion have been thoroughly reviewed, but the influence of global warming on groundwater-dependent ecosystems (GDEs) remains poorly known. Here we report long-term water temperature trends in 66 northern European cold-water springs. A vast majority of the springs (82%) exhibited a significant increase in water temperature during 1968-2012. Mean spring water temperatures were closely related to regional air temperature and global radiative forcing of the corresponding year. Based on three alternative climate scenarios representing low (RCP2.6), intermediate (RCP6) and high-emission scenarios (RCP8.5), we estimate that increase in mean spring water temperature in the region is likely to range from 0.67 °C (RCP2.6) to 5.94 °C (RCP8.5) by 2086. According to the worst-case scenario, water temperature of these originally cold-water ecosystems (regional mean in the late 1970s: 4.7 °C) may exceed 12 °C by the end of this century. We used bryophyte and macroinvertebrate species data from Finnish springs and spring-fed streams to assess ecological impacts of the predicted warming. An increase in spring water temperature by several degrees will likely have substantial biodiversity impacts, causing regional extinction of native, cold-stenothermal spring specialists, whereas species diversity of headwater generalists is likely to increase. Even a slight (by 1 °C) increase in water temperature may eliminate endemic spring species, thus altering bryophyte and macroinvertebrate assemblages of spring-fed streams. Climate change-induced warming of northern regions may thus alter species composition of the spring biota and cause regional homogenization of biodiversity in headwater ecosystems. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61691
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Ecology, University of Oulu, P.O. Box 3000, Oulu, Finland; Water Resources and Environmental Engineering Research Group, University of Oulu, P.O. Box 3000, Oulu, Finland; Division of Land and Water Resources Engineering, KTH Royal Institute of Technology, Stockholm, Sweden; Geological Survey of Sweden, P.O. Box 670, Uppsala, Sweden; Geological Survey of Finland, P.O. Box 96, Espoo, Finland; Metsähallitus, P.O. Box 94, Vantaa, Finland; Ruuhikoskenkatu 17 B 5, Salo, Finland; Finnish Environment Institute, Freshwater Centre, Groundwater and Water Supply, Mechelininkatu 34a, Helsinki, Finland; Finnish Environment Institute, Natural Environment Centre, Oulu, Finland
Recommended Citation:
Jyväsjärvi J.,Marttila H.,Rossi P.M.,et al. Climate-induced warming imposes a threat to north European spring ecosystems[J]. Global Change Biology,2015-01-01,21(12)