气候变化领域集成服务门户(CCPortal): A Long-Lived Alpine Perennial Advances Flowering under Warmer Conditions but Not Enough to Maintain Reproductive Success

CCPortal

DOI	10.1086/729438
	A Long-Lived Alpine Perennial Advances Flowering under Warmer Conditions but Not Enough to Maintain Reproductive Success
	Zettlemoyer, Meredith A.; Conner, Rebecca J.; Seaver, Micaela M.; Waddle, Ellen; DeMarche, Megan L.
发表日期	2024
ISSN	0003-0147
EISSN	1537-5323
起始页码	203
结束页码	5
卷号	203 期号:5
英文摘要	Assessing whether phenological shifts in response to climate change confer a fitness advantage requires investigating the relationships among phenology, fitness, and environmental drivers of selection. Despite widely documented advancements in phenology with warming climate, we lack empirical estimates of how selection on phenology varies in response to continuous climate drivers or how phenological shifts in response to warming conditions affect fitness. We leverage an unusual long-term dataset with repeated, individual measurements of phenology and reproduction in a long-lived alpine plant. We analyze phenotypic plasticity in flowering phenology in relation to two climate drivers, snowmelt timing and growing degree days (GDDs). Plants flower earlier with increased GDDs and earlier snowmelt, and directional selection also favors earlier flowering under these conditions. However, reproduction still declines with warming and early snowmelt, even when flowering is early. Furthermore, the steepness of this reproductive decline increases dramatically with warming conditions, resulting in very little fruit production regardless of flowering time once GDDs exceed approximately 225 degree days or snowmelt occurs before May 15. Even though advancing phenology confers a fitness advantage relative to stasis, these shifts are insufficient to maintain reproduction under warming, highlighting limits to the potential benefits of phenological plasticity under climate change.
英文关键词	plasticity; climate change; fitness landscape; phenology; selection
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:001191702300001
来源期刊	AMERICAN NATURALIST
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307646
作者单位	University System of Georgia; University of Georgia; University of Montana System; University of Montana; University of Colorado System; University of Colorado Boulder
推荐引用方式 GB/T 7714	Zettlemoyer, Meredith A.,Conner, Rebecca J.,Seaver, Micaela M.,et al. A Long-Lived Alpine Perennial Advances Flowering under Warmer Conditions but Not Enough to Maintain Reproductive Success[J],2024,203(5).
APA	Zettlemoyer, Meredith A.,Conner, Rebecca J.,Seaver, Micaela M.,Waddle, Ellen,&DeMarche, Megan L..(2024).A Long-Lived Alpine Perennial Advances Flowering under Warmer Conditions but Not Enough to Maintain Reproductive Success.AMERICAN NATURALIST,203(5).
MLA	Zettlemoyer, Meredith A.,et al."A Long-Lived Alpine Perennial Advances Flowering under Warmer Conditions but Not Enough to Maintain Reproductive Success".AMERICAN NATURALIST 203.5(2024).