干旱区生态环境知识资源中心(Arid): Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions

Arid

DOI	10.1002/ecs2.3450
	Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions
	Chambers, Jeanne C.; Urza, Alexandra K.; Board, David, I; Miller, Richard F.; Pyke, David A.; Roundy, Bruce A.; Schupp, Eugene W.; Tausch, Robin J.
通讯作者	Chambers, JC (corresponding author), US Forest Serv, Rocky Mt Res Stn, USDA, Reno, NV 89512 USA.
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2021
卷号	12 期号:4
英文摘要	Fire and fuel management is a high priority in North American sagebrush ecosystems where the expansion of pinon and juniper trees and the invasion of nonnative annual grasses are altering fire regimes and resulting in loss of sagebrush species and habitat. We evaluated 10-yr effects of woody fuel treatments on sagebrush recruitment and plant functional group interactions using Sagebrush Steppe Treatment Evaluation Project data. We used mixed-effects ANOVAs to examine treatment effects on sagebrush density and cover and perennial and annual grass cover in expansion woodlands (prescribed fire and cut-and-leave) and annual grass invasion areas (prescribed fire, mowing, tebuthiuron herbicide application). We used piecewise structural equation models to evaluate interactions among sagebrush seedling density, juvenile and adult density, and cover and perennial and annual grass cover. Fuel treatments were equated to pulse or press disturbances varying in resource release and subsequent intra- and interspecific interactions. Prescribed fire, a high magnitude pulse disturbance with more severe effects in warm and dry sites, reduced sagebrush cover and decoupled associations among sagebrush seedlings, juvenile and adult density, and cover indicating changed population structure. Cutting and leaving trees, a low magnitude pulse disturbance in cooler and moister woodlands, increased sagebrush density and cover and generally had lesser effects on sagebrush intraspecific associations. Mowing, a moderate magnitude pulse disturbance, and tebuthiuron herbicide application, a multiyear press disturbance, reduced sagebrush cover and disrupted intraspecific relationships. Competitive release increased cover of perennial grass in all treatments but tebuthiuron. Annual grass increased in all treatments, especially prescribed fire and tebuthiuron. Annual and perennial grass interactions with sagebrush were generally rare, but in woodland treatments perennial grass suppressed annual grass through year 6. Treatments in cooler and moister woodland sites had more positive effects on sagebrush recruitment and perennial grass cover, less negative effects on sagebrush intraspecific interactions, and smaller increases in annual grass cover indicating potential increases in resilience to fire. In warmer and drier invasion sites, reductions in woody fuels resulted in lack of sagebrush recruitment, disruption of sagebrush intraspecific interactions, and progressive increases in annual grass indicating reduced resilience to fire and resistance to invaders.
英文关键词	annual grass invasion Artemisia tridentata Bromus tectorum fuel treatment piñ on and juniper resilience to disturbance resistance to invasion sagebrush recruitment Special Feature Sagebrush Steppe Treatment Evaluation Project woodland expansion
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000645597500010
WOS关键词	WYOMING BIG SAGEBRUSH ; COLD DESERT SHRUBLANDS ; ANNUAL GRASS INVASION ; GREAT-BASIN ; BROMUS-TECTORUM ; ARTEMISIA-TRIDENTATA ; RELATIVE IMPORTANCE ; PRESCRIBED FIRE ; COMMUNITIES ; RESISTANCE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	United States Geological Survey ; E18
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350048
作者单位	[Chambers, Jeanne C.; Urza, Alexandra K.; Board, David, I; Tausch, Robin J.] US Forest Serv, Rocky Mt Res Stn, USDA, Reno, NV 89512 USA; [Miller, Richard F.] Oregon State Univ, Dept Range & Anim Sci, Corvallis, OR 97331 USA; [Pyke, David A.] US Geol Survey, Forest & Rangeland Ecosyst Sci Ctr, Corvallis, OR 97331 USA; [Roundy, Bruce A.] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA; [Schupp, Eugene W.] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA; [Schupp, Eugene W.] Utah State Univ, Ecol Ctr, Logan, UT 84322 USA
推荐引用方式 GB/T 7714	Chambers, Jeanne C.,Urza, Alexandra K.,Board, David, I,et al. Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions[J]. United States Geological Survey, E18,2021,12(4).
APA	Chambers, Jeanne C..,Urza, Alexandra K..,Board, David, I.,Miller, Richard F..,Pyke, David A..,...&Tausch, Robin J..(2021).Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions.ECOSPHERE,12(4).
MLA	Chambers, Jeanne C.,et al."Sagebrush recovery patterns after fuel treatments mediated by disturbance type and plant functional group interactions".ECOSPHERE 12.4(2021).