干旱区生态环境知识资源中心(Arid): Spatio-Temporal Patterns of Joshua Tree Stand Structure and Regeneration Following Mojave Desert Wildfires

Arid

DOI	10.3389/fevo.2021.667635
	Spatio-Temporal Patterns of Joshua Tree Stand Structure and Regeneration Following Mojave Desert Wildfires
	St. Clair, Seth B.; St. Clair, Elijah A.; St. Clair, Samuel B.
通讯作者	Clair, SSB (corresponding author)，Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA.
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2022
卷号	9
英文摘要	Eastern Joshua tree (Yucca jaegeriana) plays a central role in the ecology of the Mojave Desert ecosystem. However, the emergence of invasive grass fire-cycles in the last several decades brings into question Joshua trees' tolerance and resilience to changing fire regimes. This study's objective was to examine the effects of wildfires on the structure and regeneration potential of Joshua trees forests. We examined the density, size class structure, and regeneration response of Joshua tree populations on a network of one kilometer transects along the boundaries of four independent wildfires and the interior of the largest fire that occurred 15 years ago (2005) in the northeast Mojave Desert. Burned edge and burned interior transects had 23- and 4.1-fold lower Joshua tree stand densities than unburned transects. The more robust recovery of stand density along burned interior transects compared to burned edge transects appears to be primarily driven by more prolific vegetative sprouting. Our data show that Joshua trees can sprout vegetatively following fire, but it is not a strong or consistent post-fire resprouter. Limiting the spread of invasive annual grasses and novel fire regimes will be critical to maintaining healthy Joshua tree populations into the future, particularly on the edge of its ecological range.
英文关键词	invasive grass fire cycle Mojave Desert vegetative regeneration wildfire Yucca brefifolia
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:000753703000001
WOS关键词	YUCCA-BREVIFOLIA ; SONORAN DESERTS ; CLIMATE-CHANGE ; LIFE-HISTORY ; FIRE ; SURVIVORSHIP ; VARIABILITY ; SEVERITY ; GROWTH
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376503
作者单位	[St. Clair, Seth B.; St. Clair, Elijah A.; St. Clair, Samuel B.] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA
推荐引用方式 GB/T 7714	St. Clair, Seth B.,St. Clair, Elijah A.,St. Clair, Samuel B.. Spatio-Temporal Patterns of Joshua Tree Stand Structure and Regeneration Following Mojave Desert Wildfires[J],2022,9.
APA	St. Clair, Seth B.,St. Clair, Elijah A.,&St. Clair, Samuel B..(2022).Spatio-Temporal Patterns of Joshua Tree Stand Structure and Regeneration Following Mojave Desert Wildfires.FRONTIERS IN ECOLOGY AND EVOLUTION,9.
MLA	St. Clair, Seth B.,et al."Spatio-Temporal Patterns of Joshua Tree Stand Structure and Regeneration Following Mojave Desert Wildfires".FRONTIERS IN ECOLOGY AND EVOLUTION 9(2022).