Arid
DOI10.1016/j.rama.2015.09.002
Topographic Context of the Burn Edge Influences Postfire Recruitment of Arid Land Shrubs
Condon, Lea A.; Weisberg, Peter J.
通讯作者Condon, Lea A.
来源期刊RANGELAND ECOLOGY & MANAGEMENT
ISSN1550-7424
EISSN1551-5028
出版年2016
卷号69期号:2页码:129-133
英文摘要

Although fire is becoming frequent in arid lands throughout the world, little is known about the recruitment pattern of many arid land shrub species after fire. We explored topographic and edaphic correlates of postfire recruitment for four shrub species 6 years following wildfire in central Nevada, United States. We hypothesized that the spatial pattern of shrub recruitment varies with fire-related species traits according to the topographic position of the burn edge, which correlated with postfire seed sources. Where the burn edge fell on a ridge, the frequency of the colonizing shrub, Artemisia tridentata ssp. vaseyana, decreased with distance from the burn edge, whereas the frequency of facultative resprouting species was independent or increased with distance. Where the burn edge fell behind a ridge, there were fewer shrubs overall and a greater proportion of resprouting species. Most individuals of resprouting species were adults, suggesting immediate, fire-stimulated recruitment. Interactions among topographic position and distance from the burn edge influence the recruitment patterns of shrub species and have implications for the postfire species assemblage that are predictable on the basis of fire related plant traits. We demonstrate how the topographic position of the burn edge influences postfire recovery trajectories of the shrub community. (C) 2016 The Society for Range Management. Published by Elsevier Inc. All rights reserved.


英文关键词bitterbrush functional traits Great Basin plant reproduction strategy postfire succession sagebrush
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000371952400005
WOS关键词MEDITERRANEAN ECOSYSTEMS ; BIG SAGEBRUSH ; FIRE ; RECOVERY ; VEGETATION ; AMERICA ; CLIMATE ; TRAITS ; BASIN
WOS类目Ecology ; Environmental Sciences
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/2XILL650/195886
作者单位Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA
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Condon, Lea A.,Weisberg, Peter J.. Topographic Context of the Burn Edge Influences Postfire Recruitment of Arid Land Shrubs[J],2016,69(2):129-133.
APA Condon, Lea A.,&Weisberg, Peter J..(2016).Topographic Context of the Burn Edge Influences Postfire Recruitment of Arid Land Shrubs.RANGELAND ECOLOGY & MANAGEMENT,69(2),129-133.
MLA Condon, Lea A.,et al."Topographic Context of the Burn Edge Influences Postfire Recruitment of Arid Land Shrubs".RANGELAND ECOLOGY & MANAGEMENT 69.2(2016):129-133.
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