Arid
DOI10.1017/S0960258511000407
Seed bank persistence and climate change
Ooi, Mark K. J.1,2
通讯作者Ooi, Mark K. J.
来源期刊SEED SCIENCE RESEARCH
ISSN0960-2585
EISSN1475-2735
出版年2012
卷号22页码:S53-S60
英文摘要

The strong mechanistic relationship between climatic factors and seed dormancy and germination suggests that forecast climatic changes will significantly affect seed bank persistence. This review focuses on the potential impact of changing temperature, rainfall and fire regimes on the longevity of long-term persistent seed-banks. Currently, there are few studies investigating the mechanistic responses of demographic processes, such as seed-bank dynamics, to forecast climate change. However, from the work that has been published, several key points have been highlighted. First, increased air temperatures will produce significantly higher soil temperatures in open and sparsely vegetated habitats. Some evidence shows that this could accelerate the decline of seed viability and compromise bet-hedging strategies of species in dryland regions. Second, changes to rainfall season may determine the relative success of recruitment, with lower levels of success producing net losses to seed bank longevity. Finally, higher temperatures are likely to produce increased fire frequency, compromising the persistence of plant populations dependent on long-lived seed banks. Improving our understanding of both the mechanistic response and adaptive capacity of seed banks to climate change will provide a solid basis for improved predictions of future species distributions and risk of extinction, particularly in ecosystems subjected to temporally stochastic disturbances. It is necessary to develop functional groups based on key life-history trait responses to changing environmental conditions, to enable broader-scale predictions of distribution and persistence in the future.


英文关键词climate change drought fire global warming heat wave long-term persistence semi-arid soil seed bank soil temperature storage effect
类型Review
语种英语
国家England ; Australia
收录类别SCI-E
WOS记录号WOS:000299886400009
WOS关键词ANNUAL PLANTS ; EVOLUTIONARY RESPONSES ; HABITAT FRAGMENTATION ; AUSTRALIAN FABACEAE ; WESTERN-AUSTRALIA ; SOIL TEMPERATURES ; CHANGE IMPACTS ; GERMINATION ; FIRE ; DORMANCY
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/175017
作者单位1.Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England;
2.Univ Wollongong, Sch Biol Sci, Inst Conservat Biol, Wollongong, NSW 2522, Australia
推荐引用方式
GB/T 7714
Ooi, Mark K. J.. Seed bank persistence and climate change[J],2012,22:S53-S60.
APA Ooi, Mark K. J..(2012).Seed bank persistence and climate change.SEED SCIENCE RESEARCH,22,S53-S60.
MLA Ooi, Mark K. J.."Seed bank persistence and climate change".SEED SCIENCE RESEARCH 22(2012):S53-S60.
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