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The role of functional uniqueness and spatial aggregation in explaining rarity in trees
Umana, Maria Natalia; Mi, Xiangcheng1; Cao, Min; Enquist, Brian J.; Hao, Zhanqing4; Howe, Robert5; Iida, Yoshiko6; Johnson, Daniel7; Lin, Luxiang8; Liu, Xiaojuan1; Ma, Keping1; Sun, I-Fang; Thompson, Jill10; Uriarte, Maria12; Wang, Xugao4; Wolf, Amy5; Yang, Jie; Zimmerman, Jess K.; Swenson, Nathan G.
AbstractAim: Determining the drivers of species rarity is fundamental for understanding and conserving biodiversity. Rarity of a given species within its community may arise due to exclusion by other ecologically similar species. Conversely, rare species may occupy habitats that are rare in the landscape or they may be ill-suited to all available habitats. The first mechanism would lead to common and rare species occupying similar ecological space defined by functional traits. The second mechanism would result in common and rare species occupying dissimilar ecological space and spatial aggregation of rare species, either because they are specialists in rare habitats or because rare species tend to be dispersal limited. Here, we quantified the contribution of locally rare species to community functional richness and the spatial aggregation of species across tree communities world-wide to address these hypotheses. Location: Asia and the Americas. Time period: 2002 to 2012 (period that considers the censuses for the plots used). Major taxa studied: Angiosperm and Gymnosperm trees. Methods: We compiled a dataset of functional traits from all the species present in eight tree plots around the world to evaluate the contribution of locally rare species to tree community functional richness using multi- and univariate approaches. We also quantified the spatial aggregation of individuals within species at several spatial scales as it relates to abundance. Results: Locally rare tree species in temperate and tropical forests tended to be functionally unique and are consistently spatially clustered. Furthermore, there is no evidence that this pattern is driven by pioneer species being locally rare. Main conclusions: This evidence shows that locally rare tree species disproportionately contribute to community functional richness, and we can therefore reject the hypothesis that locally rare species are suppressed by ecologically similar, but numerically dominant, species. Rather, locally rare species are likely to be specialists on spatially rare habitats or they may be ill-suited to the locally available environments.
Keywordfunctional diversity functional traits species relative abundance temperate forests tree diversity tropical forests
Subject AreaEnvironmental Sciences & Ecology ; Geology
Indexed BySCI
WOS IDWOS:000406068800002
Publication PlaceHOBOKEN
Funding OrganizationNSF Dimensions of Biodiversity US-China [DEB-1241136, DEB-1046113] ; National Key Basic Research Program of ChinaNational Basic Research Program of China [2014CB954104] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370445, 31570430] ; Southeast Asia Biodiversity Research Institute of Chinese Academy of Sciences [2015CASEABRI004] ; Science and Technology Service Network Initiative of Chinese Academy of Sciences [KFJ-EW-STS-126] ; NSFNational Science Foundation (NSF) [BSR-8811902, DEB-9411973, DEB-0080538, DEB-0218039, DEB-0620910, DEB-0963447] ; NERCUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [ceh020002] Funding Source: UKRI ; Direct For Biological SciencesNational Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO) [1546686] Funding Source: National Science Foundation ; Natural Environment Research CouncilUK Research & Innovation (UKRI)Natural Environment Research Council (NERC) [ceh020002] Funding Source: researchfish
Corresponding Author Emailmaumana@gmail.com
OAGreen Submitted, gold
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Umana, Maria Natalia; Swenson, Nathan G.] Univ Maryland, Dept Biol, College Pk, MD 20742 USA
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China
3.Cao, Min; Lin, Luxiang; Yang, Jie; Swenson, Nathan G.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Kunming 650223, Peoples R China
4.Enquist, Brian J.] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA
5.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China
6.Univ Wisconsin Green Bay, Dept Nat & Appl Sci, Green Bay, WI 54311 USA
7.Forestry & Forest Prod Res Inst, Kyushu Res Ctr, Kumamoto 8600862, Japan
8.Yale Sch Forestry & Environm Studies, New Haven, CT 06511 USA
9.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Mengla 666303, Yunnan, Peoples R China
10.Natl DongHwa Univ, Dept Nat Resources & Environm Studies, Hualien 97401, Taiwan
11.Ctr Ecol & Hydrol, Penicuik, Midlothian, Scotland
12.Thompson, Jill; Zimmerman, Jess K.] Univ Puerto Rico, Dept Environm Sci, POB 70337, San Juan, PR 00936 USA
13.Columbia Univ, Dept Ecol Evolut & Environm Biol, New York, NY 10027 USA
14.Enquist, Brian J.] Santa Fe Inst, 1399 Hyde Pk Rd, Santa Fe, NM 87501 USA
Recommended Citation
GB/T 7714
Umana, Maria Natalia,Mi, Xiangcheng,Cao, Min,et al. The role of functional uniqueness and spatial aggregation in explaining rarity in trees[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2017,26(7):777-786.
APA Umana, Maria Natalia.,Mi, Xiangcheng.,Cao, Min.,Enquist, Brian J..,Hao, Zhanqing.,...&Swenson, Nathan G..(2017).The role of functional uniqueness and spatial aggregation in explaining rarity in trees.GLOBAL ECOLOGY AND BIOGEOGRAPHY,26(7),777-786.
MLA Umana, Maria Natalia,et al."The role of functional uniqueness and spatial aggregation in explaining rarity in trees".GLOBAL ECOLOGY AND BIOGEOGRAPHY 26.7(2017):777-786.
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