干旱区生态环境知识资源中心(Arid): Creosote growth rate and reproduction increase in postfire environments

Arid

DOI	10.1002/ece3.5771
	Creosote growth rate and reproduction increase in postfire environments
	Molinari, Rebecca Lee 1; Bishop, Tara B. B.1; Bekker, Matthew F.2; Kitchen, Stanley G.3; Allphin, Loreen 1; St Clair, Samuel B.1
通讯作者	St Clair, Samuel B.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:22 页码:12897-12905
英文摘要	Human activities are changing patterns of ecological disturbance globally. In North American deserts, wildfire is increasing in size and frequency due to fuel characteristics of invasive annual grasses. Fire reduces the abundance and cover of native vegetation in desert ecosystems. In this study, we sought to characterize stem growth and reproductive output of a dominant native shrub in the Mojave Desert, creosote bush (Larrea tridentata (DC.) Coville) following wildfires that occurred in 2005. We sampled 55 shrubs along burned and unburned transects 12 years after the fires (2017) and quantified age, stem diameter, stem number, radial and vertical growth rates, and fruit production for each shrub. The shrubs on the burn transects were most likely postfire resprouts based on stem age while stems from unburn transects dated from before the fire. Stem and vertical growth rates for shrubs on burned transects were 2.6 and 1.7 times higher than that observed for shrubs on unburned transects. Fruit production of shrubs along burned transects was 4.7-fold more than shrubs along paired unburned transects. Growth rates and fruit production of shrubs in burned areas did not differ with increasing distance from the burn perimeter. Positive growth and reproduction responses of creosote following wildfires could be critical for soil stabilization and re-establishment of native plant communities in this desert system. Additional research is needed to assess if repeat fires that are characteristic of invasive grass-fire cycles may limit these benefits.
英文关键词	creosote bush dendrochronology fire ecology Larrea tridentata Mojave Desert
类型	Article
语种	英语
国家	USA
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000492384600001
WOS关键词	MOJAVE DESERT ; LARREA-TRIDENTATA ; SOIL CHARACTERISTICS ; WATER RELATIONS ; SONORAN DESERT ; ANNUAL PLANTS ; BUSH SCRUB ; FIRE ; NITROGEN ; SHRUBS
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
EI主题词	2019-10-25
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310353
作者单位	1.Brigham Young Univ, Dept Plant & Wildlife Sci, 4124 LSB, Provo, UT 84602 USA; 2.Brigham Young Univ, Dept Geog, Provo, UT 84602 USA; 3.US Forest Serv, USDA, Rocky Mt Res Stn, Provo, UT USA
推荐引用方式 GB/T 7714	Molinari, Rebecca Lee,Bishop, Tara B. B.,Bekker, Matthew F.,et al. Creosote growth rate and reproduction increase in postfire environments[J],2019,9(22):12897-12905.
APA	Molinari, Rebecca Lee,Bishop, Tara B. B.,Bekker, Matthew F.,Kitchen, Stanley G.,Allphin, Loreen,&St Clair, Samuel B..(2019).Creosote growth rate and reproduction increase in postfire environments.ECOLOGY AND EVOLUTION,9(22),12897-12905.
MLA	Molinari, Rebecca Lee,et al."Creosote growth rate and reproduction increase in postfire environments".ECOLOGY AND EVOLUTION 9.22(2019):12897-12905.