globalchange  > 气候变化与战略
DOI: 10.1111/ele.13595
论文题名:
Trade-off between seed dispersal in space and time
作者: Chen S.-C.; Poschlod P.; Antonelli A.; Liu U.; Dickie J.B.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:11
起始页码: 1635
结束页码: 1642
语种: 英语
中文关键词: Annual ; dormancy ; germination ; iteroparity ; lifespan ; longevity ; perennial ; seed bank ; seed dispersal
英文关键词: dormancy ; germination ; plant seed ; seed dispersal ; time ; Germination ; Plant Dormancy ; Seed Dispersal ; Seeds ; Time
英文摘要: Seed movement and delayed germination have long been thought to represent alternative risk-spreading strategies, but current evidence covers limited scales and yields mixed results. Here we present the first global-scale test of a negative correlation between dispersal and dormancy. The result demonstrates a strong and consistent pattern that species with dormant seeds have reduced spatial dispersal, also in the context of life-history traits such as seed mass and plant lifespan. Long-lived species are more likely to have large, non-dormant seeds that are dispersed far. Our findings provide robust support for the theoretical prediction of a dispersal trade-off between space and time, implying that a joint consideration of risk-spreading strategies is imperative in studying plant life-history evolution. The bet-hedging patterns in the dispersal–dormancy correlation and the associated reproductive traits have implications for biodiversity conservation, via prediction of which plant groups would be most impacted in the changing era. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166607
Appears in Collections:气候变化与战略

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作者单位: Royal Botanic Gardens Kew, Wellcome Trust Millennium Building, Wakehurst, West Sussex RH17 6TN, United Kingdom; Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Universitätsstrasse 31, Regensburg, 93040, Germany; Gothenburg Global Biodiversity Centre and Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, Göteborg, SE-405 30, Sweden; Royal Botanic Gardens Kew, Richmond, Surrey TW9 3AE, United Kingdom

Recommended Citation:
Chen S.-C.,Poschlod P.,Antonelli A.,et al. Trade-off between seed dispersal in space and time[J]. Ecology Letters,2020-01-01,23(11)
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