干旱区生态环境知识资源中心(Arid): Seeding native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands

Arid

DOI	10.1007/s10530-019-01951-9
	Seeding native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands
	Urza, Alexandra K.1,2,3; Weisberg, Peter J.1,2; Chambers, Jeanne C.2,3; Board, David 3; Flake, Samuel W.4
通讯作者	Urza, Alexandra K.
来源期刊	BIOLOGICAL INVASIONS
ISSN	1387-3547
EISSN	1573-1464
出版年	2019
卷号	21 期号:6 页码:1993-2007
英文摘要	Exotic grass invasions are often facilitated by disturbances, which provide opportunities for invasion by releasing pulses of resources available to invaders. Where disturbances such as prescribed fire are used as a management tool, there is a pressing need to identify ecosystem attributes associated with susceptibility to disturbance-induced invasion. In the Great Basin of the western United States, expansion of the exotic annual grass Bromus tectorum is transforming native ecosystems. In this study we examined long-term understory plant community responses to experimental prescribed fire and post-fire seeding treatments in Great Basin pinyon-juniper woodlands. We asked (1) how long-term ecosystem resistance to fire-induced B. tectorum invasion varies along major abiotic and biotic gradients, and (2) whether post-fire seeding of perennial species promotes perennial plant establishment and increases resistance to invasion. Fourteen years after burning, we found that resistance to invasion was high on relatively cool and moist sites (higher elevation), but that the warmer and drier (low- to mid-elevation) burned sites had become heavily invaded by B. tectorum. Post-fire B. tectorum dominance was highest in sites with high pre-fire tree cover, where residual and newly established native perennial plant cover was limited following fire. We found that seeding perennial species after burning decreased invasibility in sites with low resistance. Seeding a mix of native perennial shrubs, forbs, and grasses was more effective at increasing perennial cover and inhibiting B. tectorum invasion than seeding a mix of non-native perennial grasses. Our results highlight the need for long-term studies to evaluate plant community responses to prescribed fire, as important treatment differences were not captured in a shorter (3-4year) post-fire monitoring period.
英文关键词	Biological invasions Great Basin Prescribed fire Resistance to invasion Restoration Semiarid woodlands
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000467649500013
WOS关键词	GREAT-BASIN ; BIOLOGICAL INVASIONS ; PLANT-COMMUNITIES ; POSTFIRE RECOVERY ; FIRE VARIES ; VEGETATION ; DOMINANCE ; NITROGEN ; CLIMATE ; DESERT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214631
作者单位	1.Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA; 2.Univ Nevada, Program Ecol Evolut & Conservat Biol, Reno, NV 89557 USA; 3.US Forest Serv, Rocky Mt Res Stn, Reno, NV USA; 4.North Carolina State Univ, Dept Plant & Microbial Biol, Raleigh, NC USA
推荐引用方式 GB/T 7714	Urza, Alexandra K.,Weisberg, Peter J.,Chambers, Jeanne C.,et al. Seeding native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands[J]. Arizona State University,2019,21(6):1993-2007.
APA	Urza, Alexandra K.,Weisberg, Peter J.,Chambers, Jeanne C.,Board, David,&Flake, Samuel W..(2019).Seeding native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands.BIOLOGICAL INVASIONS,21(6),1993-2007.
MLA	Urza, Alexandra K.,et al."Seeding native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands".BIOLOGICAL INVASIONS 21.6(2019):1993-2007.