气候变化领域集成服务门户(CCPortal): Seasonal change mediates the shift between resource and pollen limitation in Hedysarum scoparium (Fabaceae)

CCPortal

DOI	10.3724/SP.J.1226.2015.00094
	Seasonal change mediates the shift between resource and pollen limitation in Hedysarum scoparium (Fabaceae)
	Pan, ChengChen; Feng, Qi; Zhao, HaLin; Zhao, XueYong; Liu, LinDe; Liu, JiLiang; Zhang, Li; Li, Jin
发表日期	2015
ISSN	1674-3822
起始页码	94
结束页码	98
卷号	7 期号:1
英文摘要	Theory suggests that with sufficient environmental variation, pollen limitation might be observed at some places or times, and resource limitation at others, but there are no empirical data about the effect of seasonal change on the variation of pollen limitation and resource limitation within a flowering season. In this study, we examined pollen and resource limitation by comparing fruit set and seed production in natural-and hand-pollinated Hedysarum scoparium flowers in the middle reaches of the Hexi Corridor region, China, in 2010. We also described a role for the first substantial autumn rainfall in mediating a shift between pollen and resource limitation in H. scoparium, but did not analyze this experimentally. Our results indicated that H. scoparium was resource limited at peak flowering during the summer, and was pollen limited at peak flowering during the autumn. The seasonal change (summer to autumn) mediated the shift between pollen and resource limitations in H. scoparium. The shift timing depended on the date of the first autumn rainfall in 2010. Changes in the first substantial rainfall in autumn may affect fruiting of H. scoparium, thus affecting population persistence of this species and development/structure of the local ecosystem if such conditions persist.
英文关键词	plant reproductive ecology; fruit set; seed production; Hedysarum scoparium
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS关键词	REPRODUCTIVE SUCCESS ; SEED PRODUCTION ; FRUIT ABORTION ; SET ; POLLINATION ; PLANTS ; FERTILIZATION ; LEGUMINOSAE ; PATTERNS ; FITNESS
WOS记录号	WOS:000390930900013
来源期刊	SCIENCES IN COLD AND ARID REGIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239379
作者单位	[Pan, ChengChen; Feng, Qi; Zhao, HaLin; Zhao, XueYong; Liu, JiLiang; Li, Jin] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [Liu, LinDe; Zhang, Li] Ludong Univ, Sch Life Sci, Yantai 264025, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Pan, ChengChen,Feng, Qi,Zhao, HaLin,et al. Seasonal change mediates the shift between resource and pollen limitation in Hedysarum scoparium (Fabaceae)[J]. 中国科学院西北生态环境资源研究院,2015,7(1).
APA	Pan, ChengChen.,Feng, Qi.,Zhao, HaLin.,Zhao, XueYong.,Liu, LinDe.,...&Li, Jin.(2015).Seasonal change mediates the shift between resource and pollen limitation in Hedysarum scoparium (Fabaceae).SCIENCES IN COLD AND ARID REGIONS,7(1).
MLA	Pan, ChengChen,et al."Seasonal change mediates the shift between resource and pollen limitation in Hedysarum scoparium (Fabaceae)".SCIENCES IN COLD AND ARID REGIONS 7.1(2015).