干旱区生态环境知识资源中心(Arid): Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations

Arid

DOI	10.1016/j.cub.2019.11.071
	Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations
	Rafferty, Nicole E.1,2; Diez, Jeffrey M.3; Bertelsen, C. David 4,5
通讯作者	Rafferty, Nicole E.
来源期刊	CURRENT BIOLOGY
ISSN	0960-9822
EISSN	1879-0445
出版年	2020
卷号	30 期号:3 页码:432-+
英文摘要	Climate change is known to affect regional weather patterns and phenology; however, we lack understanding of how climate drives phenological change across local spatial gradients. This spatial variation is critical for determining whether subpopulations and metacommunities are changing in unison or diverging in phenology. Divergent responses could reduce synchrony both within species (disrupting gene flow among subpopulations) and among species (disrupting interspecific interactions in communities). We also lack understanding of phenological change in environments where life history events are frequently aseasonal, such as the tropical, arid, and semi-arid ecosystems that cover vast areas. Using a 33-year-long dataset spanning a 1,267-m semi-arid elevational gradient in the southwestern United States, we test whether flowering phenology diverged among subpopulations within species and among five communities comprising 590 species. Applying circular statistics to test for changes in year-round flowering, we show flowering has become earlier for all communities except at the highest elevations. However, flowering times shifted at different rates across elevations likely because of elevation-specific changes in temperature and precipitation, indicating diverging phenologies of neighboring communities. Subpopulations of individual species also diverged at mid-elevation but converged in phenology at high elevation. These changes in flowering phenology among communities and subpopulations are undetectable when data are pooled across the gradient. Furthermore, we show that nonlinear changes in flowering times over the 33-year record are obscured by traditional calculations of long-term trends. These findings reveal greater spatiotemporal complexity in phenological responses than previously recognized and indicate climate is driving phenological reshuffling across local spatial gradients.
类型	Article
语种	英语
国家	USA
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000511287900022
WOS关键词	PLANT-POLLINATOR INTERACTIONS ; PHENOTYPIC PLASTICITY ; RESPONSES ; TIME ; ONSET ; TEMPERATURE ; ADAPTATION ; COMMUNITY ; PATTERNS ; INSIGHTS
WOS类目	Biochemistry & Molecular Biology ; Biology ; Cell Biology
WOS研究方向	Biochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Cell Biology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314295
作者单位	1.Univ Calif Riverside, Dept Evolut Ecol & Organismal Biol, 900 Univ Ave, Riverside, CA 92521 USA; 2.Rocky Mt Biol Labs, POB 519, Crested Butte, CO 81224 USA; 3.Univ Calif Riverside, Dept Bot & Plant Sci, 900 Univ Ave, Riverside, CA 92521 USA; 4.Univ Arizona, Sch Nat Resources & Environm, 1955 E Sixth St, Tucson, AZ 85721 USA; 5.Univ Arizona, Herbarium, POB 210036, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Rafferty, Nicole E.,Diez, Jeffrey M.,Bertelsen, C. David. Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations[J]. University of Arizona,2020,30(3):432-+.
APA	Rafferty, Nicole E.,Diez, Jeffrey M.,&Bertelsen, C. David.(2020).Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations.CURRENT BIOLOGY,30(3),432-+.
MLA	Rafferty, Nicole E.,et al."Changing Climate Drives Divergent and Nonlinear Shifts in Flowering Phenology across Elevations".CURRENT BIOLOGY 30.3(2020):432-+.