globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13366
论文题名:
Highest drought sensitivity and lowest resistance to growth suppression are found in the range core of the tree Fagus sylvatica L. not the equatorial range edge
作者: Cavin L.; Jump A.S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:1
起始页码: 362
结束页码: 379
语种: 英语
英文关键词: biogeography ; climate change ; distribution ; forest ; growth decline ; resilience ; stability ; tree rings
Scopus关键词: biogeography ; climate change ; deciduous tree ; drought ; growth response ; population decline ; population density ; temporal analysis ; tree ring ; Fagus ; Fagus sylvatica
英文摘要: Biogeographical and ecological theory suggests that species distributions should be driven to higher altitudes and latitudes as global temperatures rise. Such changes occur as growth improves at the poleward edge of a species distribution and declines at the range edge in the opposite or equatorial direction, mirrored by changes in the establishment of new individuals. A substantial body of evidence demonstrates that such processes are underway for a wide variety of species. Case studies from populations at the equatorial range edge of a variety of woody species have led us to understand that widespread growth decline and distributional shifts are underway. However, in apparent contrast, other studies report high productivity and reproduction in some range edge populations. We sought to assess temporal trends in the growth of the widespread European beech tree (Fagus sylvatica) across its latitudinal range. We explored the stability of populations to major drought events and the implications for predicted widespread growth decline at its equatorial range edge. In contrast to expectations, we found greatest sensitivity and low resistance to drought in the core of the species range, whilst dry range edge populations showed particularly high resistance to drought and little evidence of drought-linked growth decline. We hypothesize that this high range edge resistance to drought is driven primarily by local environmental factors that allow relict populations to persist despite regionally unfavourable climate. The persistence of such populations demonstrates that range-edge decline is not ubiquitous and is likely to be driven by declining population density at the landscape scale rather than sudden and widespread range retraction. © 2016 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.
资助项目: This research was partially funded through the ERA-Net BiodivERsA project Beech Forests for the Future by the UK Natural Environment Research Council (NERC, grant NE/G002118/1) and through Leverhulme Trust International Network Grant IN-2013-004. We are grateful to Andrew Hackett-Pain and Adrià Barbeta for assistance with fieldwork, to James Weir and Daniel Souto-Vilaros for assistance with laboratory work and to Christian Zang and Miguel Angel de Zavala for advice on the manuscript.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61148
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Biological and Environmental Sciences, University of Stirling, Stirling, United Kingdom; CREAF (Centre de Recerca Ecològica i Aplicacions Forestals, Campus de Bellaterra (UAB), Edifici C. 08193, Cerdanyola del Vallès, Spain

Recommended Citation:
Cavin L.,Jump A.S.. Highest drought sensitivity and lowest resistance to growth suppression are found in the range core of the tree Fagus sylvatica L. not the equatorial range edge[J]. Global Change Biology,2017-01-01,23(1)
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