干旱区生态环境知识资源中心(Arid): Vulnerability of grassland seed banks to resource-enhancing global changes

Arid

DOI	10.1002/ecy.3512
	Vulnerability of grassland seed banks to resource-enhancing global changes
	Eskelinen, Anu; Elwood, Elise; Harrison, Susan; Beyen, Eva; Gremer, Jennifer R.
通讯作者	Eskelinen, A (corresponding author), UFZ Helmholtz Ctr Environm Res, Dept Physiol Divers, Permoserstr 15, D-04318 Leipzig, Germany. ; Eskelinen, A (corresponding author), German Ctr Integrat Biodivers Res iDiv, Puschstr 4, D-04103 Leipzig, Germany. ; Eskelinen, A (corresponding author), Univ Oulu, Dept Ecol & Genet, POB 8000, FI-90014 Oulu, Finland.
来源期刊	ECOLOGY
ISSN	0012-9658
EISSN	1939-9170
出版年	2021-09
英文摘要	Soil seed banks represent reservoirs of diversity in the soil that may increase resilience of communities to global changes. Two global change factors that can dramatically alter the composition and diversity of aboveground communities are nutrient enrichment and increased rainfall. In a full-factorial nutrient and rainfall addition experiment in an annual Californian grassland, we asked whether shifts in aboveground composition and diversity were reflected in belowground seed banks. Nutrient and rainfall additions increased exotic and decreased native abundances, while rainfall addition increased exotic richness, both in aboveground communities and seed banks. Under nutrient addition, forbs and short-statured plants were replaced by grasses and tall-statured species, both above and below ground, and whole-community responses to the treatments were similar. Structural equation models indicated that especially nutrient addition effects on seed banks were largely indirect via aboveground communities. However, rainfall addition also had a direct negative effect on native species richness and abundance of species with high specific leaf area (SLA) in seed banks, showing that seed banks are sensitive to the direct effects of temporary increases in rainfall. Our findings highlight the vulnerability of seed banks in annual, resource-poor grasslands to shifts in compositional and trait changes in aboveground communities and show how invasion of exotics and depletion of natives are critical for these above-belowground compositional shifts. Our findings suggest that seed banks have limited potential to buffer resource-poor annual grasslands from the community changes caused by resource enrichment.
英文关键词	belowground diversity climate change coexistence community recovery diversity reservoir fertilization grassland nonnative species perturbation precipitation increase resilience
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000693733000001
WOS关键词	GERMINATION STRATEGIES ; NITROGEN DEPOSITION ; DESERT ANNUALS ; CLIMATE-CHANGE ; ANNUAL PLANTS ; PERSISTENCE ; RESPONSES ; DYNAMICS ; COEXISTENCE ; DIVERSITY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363023
作者单位	[Eskelinen, Anu] UFZ Helmholtz Ctr Environm Res, Dept Physiol Divers, Permoserstr 15, D-04318 Leipzig, Germany; [Eskelinen, Anu] German Ctr Integrat Biodivers Res iDiv, Puschstr 4, D-04103 Leipzig, Germany; [Eskelinen, Anu] Univ Oulu, Dept Ecol & Genet, POB 8000, FI-90014 Oulu, Finland; [Elwood, Elise; Beyen, Eva; Gremer, Jennifer R.] Univ Calif Davis, Dept Evolut & Ecol, Davis, CA 95616 USA; [Harrison, Susan] Univ Calif Davis, Dept Environm Sci & Policy, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Eskelinen, Anu,Elwood, Elise,Harrison, Susan,et al. Vulnerability of grassland seed banks to resource-enhancing global changes[J]. University of California, Davis,2021.
APA	Eskelinen, Anu,Elwood, Elise,Harrison, Susan,Beyen, Eva,&Gremer, Jennifer R..(2021).Vulnerability of grassland seed banks to resource-enhancing global changes.ECOLOGY.
MLA	Eskelinen, Anu,et al."Vulnerability of grassland seed banks to resource-enhancing global changes".ECOLOGY (2021).