干旱区生态环境知识资源中心(Arid): Biogeography of fire regimes in western US conifer forests: A trait-based approach

Arid

DOI	10.1111/geb.13079
	Biogeography of fire regimes in western US conifer forests: A trait-based approach
	Stevens, Jens T.1; Kling, Matthew M.2; Schwilk, Dylan W.3; Varner, J. Morgan 4; Kane, Jeffrey M.5
通讯作者	Stevens, Jens T.
来源期刊	GLOBAL ECOLOGY AND BIOGEOGRAPHY
ISSN	1466-822X
EISSN	1466-8238
出版年	2020
卷号	29 期号:5 页码:944-955
英文摘要	Aim Functional traits are a crucial link between species distributions and the ecosystem processes that structure those species' niches. Concurrent increases in the availability of functional trait data and our ability to model species distributions present an opportunity to develop functional trait biogeography (i.e., the mapping of functional traits across space). Functional trait biogeography can improve process-based predictions about the resistance of certain species assemblages to changing environmental conditions across landscape scales. We illustrate this concept by developing the first trait-based, quantitative ranking of fire resistance (adult tree survival) in North American conifer species and mapping that fire resistance across space. Location and time period Western continental USA, present day. Major taxa studied Twenty-nine common conifer tree species. Methods We compiled six traits for each species: three relating to tree morphology and three relating to litter flammability. We combined these traits into a single fire resistance score and used community-weighted averaging to estimate the fire resistance scores of different forest communities, using interpolated species distribution and relative abundance data. Results Species associated historically with frequent fire have high fire resistance scores (e.g., Pinus ponderosa), reflected by thick bark, tall crowns and flammable litter. Species associated with subalpine or arid conditions have low fire resistance scores (e.g., Picea engelmannii and Pinus edulis), reflected by thin bark, short stature, poor self-pruning and low litter flammability. A map of forest community fire resistance across the western USA reveals agreement with independent assessments of historical fire regimes, while also identifying areas where community-wide species traits might be mismatched with historical fire regimes. Main conclusions Quantifying the functional traits that confer resistance to tree-killing fire provides a direct link between ecosystem disturbance and community resistance. Understanding this link is crucial to evaluation of the long-term resilience of different forest types under dynamic fire regimes. Our work represents the first known spatial representation of fire resistance traits at a regional scale and, as such, provides a link between functional traits and biogeography relevant to a critical ecosystem process.
英文关键词	bark thickness conifer fire ecology flammability functional trait biogeography resistance
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000522565300012
WOS关键词	BURNING CHARACTERISTICS ; LEAF TRAITS ; FLAMMABILITY ; ECOLOGY ; STRATEGIES ; EVOLUTION ; SEVERITY ; LITTER ; MODEL ; OAKS
WOS类目	Ecology ; Geography, Physical
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
来源机构	United States Geological Survey ; University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314640
作者单位	1.US Geol Survey, New Mexico Landscapes Field Stn, 301 Dinosaur Tr, Santa Fe, NM 87508 USA; 2.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA; 3.Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA; 4.Tall Timbers Res Stn, Tallahassee, FL USA; 5.Humboldt State Univ, Dept Forestry & Wildland Resources, Arcata, CA 95521 USA
推荐引用方式 GB/T 7714	Stevens, Jens T.,Kling, Matthew M.,Schwilk, Dylan W.,et al. Biogeography of fire regimes in western US conifer forests: A trait-based approach[J]. United States Geological Survey, University of California, Berkeley,2020,29(5):944-955.
APA	Stevens, Jens T.,Kling, Matthew M.,Schwilk, Dylan W.,Varner, J. Morgan,&Kane, Jeffrey M..(2020).Biogeography of fire regimes in western US conifer forests: A trait-based approach.GLOBAL ECOLOGY AND BIOGEOGRAPHY,29(5),944-955.
MLA	Stevens, Jens T.,et al."Biogeography of fire regimes in western US conifer forests: A trait-based approach".GLOBAL ECOLOGY AND BIOGEOGRAPHY 29.5(2020):944-955.