Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14416 |
Resilience of seed production to a severe El Nino-induced drought across functional groups and dispersal types | |
O&1; 39;Brien, Michael J.2 | |
2018-11-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:11页码:5270-5280 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; USA |
英文摘要 | More frequent and severe El Nino Southern Oscillations (ENSO) are causing episodic periods of decreased rainfall. Although the effects of these ENSO-induced droughts on tree growth and mortality have been well studied, the impacts on other demographic rates such as reproduction are less well known. We use a four-year seed rain dataset encompassing the most severe ENSO-induced drought in more than 30 years to assess the resilience (i.e., resistance and recovery) of the seed composition and abundance of three forest types in a tropical dry forest. We found that forest types showed distinct differences in the timing, duration, and intensity of drought during the ENSO event, which likely mediated seed composition shifts and resilience. Drought-deciduous species were particularly sensitive to the drought with overall poor resilience of seed production, whereby seed abundance of this functional group failed to recover to predrought levels even two years after the drought. Liana and wind-dispersed species were able to maintain seed production both during and after drought, suggesting that ENSO events promote early successional species or species with a colonization strategy. Combined, these results suggest that ENSO-induced drought mediates the establishment of functional groups and dispersal types suited for early successional conditions with more open canopies and reduced competition among plants. The effects of the ENSO-induced drought on seed composition and abundance were still evident two years after the event suggesting the recovery of seed production requires multiple years that may lead to shifts in forest composition and structure in the long term, with potential consequences for higher trophic levels like frugivores. |
英文关键词 | climate change drought-deciduous ENSO evergreen forest succession lianas plant-climate interactions reproductive phenology tropical forests |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447760300022 |
WOS关键词 | TROPICAL DRY FOREST ; COSTA-RICA ; SPATIOTEMPORAL VARIATION ; LIANA ABUNDANCE ; TREE MORTALITY ; PATTERNS ; DIVERSITY ; MECHANISMS ; PHENOLOGY ; SIZE |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17370 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.ETH Zurich Swiss Fed Inst Technol, Inst Integrat Biol, Univ Str 16, Zurich, Switzerland; 2.Univ Zurich, URPP Global Change & Biodivers, Zurich, Switzerland; 3.Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN 55108 USA; 4.Univ Minnesota, Dept Plant & Microbial Biol, St Paul, MN 55108 USA |
推荐引用方式 GB/T 7714 | O&,39;Brien, Michael J.. Resilience of seed production to a severe El Nino-induced drought across functional groups and dispersal types[J]. GLOBAL CHANGE BIOLOGY,2018,24(11):5270-5280. |
APA | O&,&39;Brien, Michael J..(2018).Resilience of seed production to a severe El Nino-induced drought across functional groups and dispersal types.GLOBAL CHANGE BIOLOGY,24(11),5270-5280. |
MLA | O&,et al."Resilience of seed production to a severe El Nino-induced drought across functional groups and dispersal types".GLOBAL CHANGE BIOLOGY 24.11(2018):5270-5280. |
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