Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13865 |
Direct and indirect effects of episodic frost on plant growth and reproduction in subalpine wildflowers | |
Pardee, Gabriella L.1,2; Inouye, David W.2,3; Irwin, Rebecca E.1,2 | |
2018-02-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:2页码:848-857 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Frost is an important episodic event that damages plant tissues through the formation of ice crystals at or below freezing temperatures. In montane regions, where climate change is expected to cause earlier snow melt but may not change the last frost-free day of the year, plants that bud earlier might be directly impacted by frost through damage to flower buds and reproductive structures. However, the indirect effects of frost mediated through changes in plant-pollinator interactions have rarely been explored. We examined the direct and pollinator-mediated indirect effects of frost on three wildflower species in southwestern Colorado, USA, Delphinium barbeyi (Ranunculaceae), Erigeron speciosus (Asteraceae), and Polemonium foliosissimum (Polemoniaceae), by simulating moderate (-1 to -5 degrees C) frost events in early spring in plants insitu. Subsequently, we measured plant growth, and upon flowering measured flower morphology and phenology. Throughout the flowering season, we monitored pollinator visitation and collected seeds to measure plant reproduction. We found that frost had species-specific direct and indirect effects. Frost had direct effects on two of the three species. Frost significantly reduced flower size, total flowers produced, and seed production of Erigeron. Furthermore, frost reduced aboveground plant survival and seed production for Polemonium. However, we found no direct effects of frost on Delphinium. When we considered the indirect impacts of frost mediated through changes in pollinator visitation, one species, Erigeron, incurred indirect, negative effects of frost on plant reproduction through changes in floral traits and pollinator visitation, along with direct effects. Overall, we found that flowering plants exhibited species-specific direct and pollinator-mediated indirect responses to frost, thus suggesting that frost may play an important role in affecting plant communities under climate change. |
英文关键词 | climate change frost phenology plant reproduction plant-pollinator interactions pollination services |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423994700053 |
WOS关键词 | WESTERN NORTH-AMERICA ; CLIMATE-CHANGE ; FLOWERING PHENOLOGY ; POLEMONIUM-VISCOSUM ; FLORAL TRAITS ; GLOBAL-CHANGE ; SKY PILOT ; SEED SET ; DAMAGE ; POLLINATION |
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/17347 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.North Carolina State Univ, Dept Appl Ecol, Raleigh, NC USA; 2.Rocky Mt Biol Labs, Gothic, CO USA; 3.Univ Maryland, Dept Biol, College Pk, MD 20742 USA |
推荐引用方式 GB/T 7714 | Pardee, Gabriella L.,Inouye, David W.,Irwin, Rebecca E.. Direct and indirect effects of episodic frost on plant growth and reproduction in subalpine wildflowers[J]. GLOBAL CHANGE BIOLOGY,2018,24(2):848-857. |
APA | Pardee, Gabriella L.,Inouye, David W.,&Irwin, Rebecca E..(2018).Direct and indirect effects of episodic frost on plant growth and reproduction in subalpine wildflowers.GLOBAL CHANGE BIOLOGY,24(2),848-857. |
MLA | Pardee, Gabriella L.,et al."Direct and indirect effects of episodic frost on plant growth and reproduction in subalpine wildflowers".GLOBAL CHANGE BIOLOGY 24.2(2018):848-857. |
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