干旱区生态环境知识资源中心(Arid): An unfortunate alliance: Native shrubs increase the abundance, performance, and apparent impacts of Bromus tectorum across a regional aridity gradient

Arid

DOI	10.1016/j.baae.2021.09.001
	An unfortunate alliance: Native shrubs increase the abundance, performance, and apparent impacts of Bromus tectorum across a regional aridity gradient
	Lucero, Jacob E.; Callaway, Ragan M.; Faist, Akasha M.; Lortie, Christopher J.
通讯作者	Lucero, JE (corresponding author), York Univ, Dept Biol, 4700 Keele St, Toronto, ON M3J 1P3, Canada.
来源期刊	BASIC AND APPLIED ECOLOGY
ISSN	1439-1791
EISSN	1618-0089
出版年	2021
卷号	57 页码:41-53
英文摘要	Interspecific facilitation contributes to the assembly of desert plant communities. However, we know little of how desert communities invaded by exotic species respond to facilitation along regional-scale aridity gradients. These measures are essential for predicting how desert plant communities might respond to concomitant plant invasion and environmental change. Here, we evaluated the potential for Bromus tectorum (a dominant invasive plant species) and the broader herbaceous plant community to form positive associations with native shrubs along a substantial aridity gradient across the Great Basin, Mojave, and San Joaquin Deserts in North America. Along this gradient, we sampled metrics of abundance and performance for B. tectorum, all native herbaceous species combined, all exotic herbaceous species combined, and the total herbaceous community using 180 pairs of shrub and open microsites. Across the gradient, B. tectorum formed strong positive associations with native shrubs, achieving 1.6-2.2 times greater abundance, biomass, and reproductive output under native shrubs than away from shrubs, regardless of relative aridity. In contrast, the broader herbaceous community was not positively associated with native shrubs. Interestingly, increasing B. tectorum abundance corresponded to decreasing native abundance, native species richness, exotic species richness, and total species richness under but not away from shrubs. Taken together, these findings suggest that native shrubs have considerable potential to directly (by increasing abundance and performance) and indirectly (by increasing competitive effects on neighbors) facilitate B. tectorum invasion across a large portion of the non-native range. (C) 2021 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.
英文关键词	Bromus tectorum Deserts Drylands Facilitated invasion Facilitation Invasive species Native turncoats Positive interactions Shrubs Stress-gradient hypothesis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000712062900004
WOS关键词	POSITIVE INTERACTIONS ; PLANT FACILITATION ; STRESS GRADIENTS ; CLIMATE-CHANGE ; EXOTIC PLANTS ; NURSE-PLANTS ; COMPETITION ; COMMUNITIES ; INVASION ; NITROGEN
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367772
作者单位	[Lucero, Jacob E.; Lortie, Christopher J.] York Univ, Dept Biol, 4700 Keele St, Toronto, ON M3J 1P3, Canada; [Lucero, Jacob E.; Faist, Akasha M.] New Mexico State Univ, Dept Anim & Range Sci, 2980 South Espina St, Las Cruces, NM 88003 USA; [Callaway, Ragan M.] Univ Montana, Div Biol Sci, Missoula, MT 59812 USA; [Callaway, Ragan M.] Univ Montana, Inst Ecosyst, Missoula, MT 59812 USA
推荐引用方式 GB/T 7714	Lucero, Jacob E.,Callaway, Ragan M.,Faist, Akasha M.,et al. An unfortunate alliance: Native shrubs increase the abundance, performance, and apparent impacts of Bromus tectorum across a regional aridity gradient[J]. New Mexico State University,2021,57:41-53.
APA	Lucero, Jacob E.,Callaway, Ragan M.,Faist, Akasha M.,&Lortie, Christopher J..(2021).An unfortunate alliance: Native shrubs increase the abundance, performance, and apparent impacts of Bromus tectorum across a regional aridity gradient.BASIC AND APPLIED ECOLOGY,57,41-53.
MLA	Lucero, Jacob E.,et al."An unfortunate alliance: Native shrubs increase the abundance, performance, and apparent impacts of Bromus tectorum across a regional aridity gradient".BASIC AND APPLIED ECOLOGY 57(2021):41-53.