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Grade of Membership models reveal geographical and environmental correlates of floristic structure in a temperate biodiversity hotspot
Li,Qin; Sun,Hang; Boufford,David E.; Bartholomew,Bruce; Fritsch,Peter W.; Chen,Jiahui; Deng,Tao; Ree,Richard H.
2021
Source PublicationNEW PHYTOLOGIST
ISSN0028-646X
Volume232Issue:3Pages:1424-1435
AbstractIdentifying the contours and correlates of species turnover is central to understanding the nature of biogeographical regions. The Hengduan Mountains region of south-central China (HMR) is well known for its high diversity of plants, but its boundaries and internal floristic structure are poorly understood, especially in relation to geographical and environmental factors.With data on occurrences and elevational ranges of seed plants across the HMR and adjacent areas of the greater Qinghai-Tibet Plateau, we identified motifs (distinct species assemblages) by Grade of Membership models, and characterized relative contributions of geography, elevation, and climate to their spatial patterns.Motifs segregate primarily by latitude, elevation, and correlated environmental variables, most sharply across the tropical-temperate divide. Secondarily, they segregate by longitude and geographical features, and reveal a novel divide across the Jinsha River. A core set of motifs corresponds to previous delineations of the HMR.The HMR biodiversity hotspot is more a mosaic of floristic elements than a cohesive entity. Grade of Membership models effectively reveal the geographical contours of biotic structure, and are a valuable new tool for biogeographical analysis.
Keywordbiogeographical regionalization biotic turnover floristic structure Hengduan Mountains seed plants species motif tropical-temperate divide HENGDUAN MOUNTAINS BIOGEOGRAPHICAL REGIONS TIBETAN PLATEAU PLANT DIVERSITY PATTERNS WORLDS DIVERSIFICATION EVOLUTION GRADIENT CLIMATE
DOI10.1111/nph.17443
WOS IDWOS:000658026700001
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73525
Collection中国科学院昆明植物研究所
Affiliation1.[Li, Qin; Ree, Richard H.] Field Museum, Dept Sci & Educ, Chicago, IL 60605 USA
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
3.Boufford, David E.] Harvard Univ Herbaria, Cambridge, MA 02138 USA
4.Calif Acad Sci, Dept Bot, Golden Gate Pk, Golden, CA 94118 USA
5.Fritsch, Peter W.] Bot Res Inst Texas, Ft Worth, TX 76017 USA
Recommended Citation
GB/T 7714
Li,Qin,Sun,Hang,Boufford,David E.,et al. Grade of Membership models reveal geographical and environmental correlates of floristic structure in a temperate biodiversity hotspot[J]. NEW PHYTOLOGIST,2021,232(3):1424-1435.
APA Li,Qin.,Sun,Hang.,Boufford,David E..,Bartholomew,Bruce.,Fritsch,Peter W..,...&Ree,Richard H..(2021).Grade of Membership models reveal geographical and environmental correlates of floristic structure in a temperate biodiversity hotspot.NEW PHYTOLOGIST,232(3),1424-1435.
MLA Li,Qin,et al."Grade of Membership models reveal geographical and environmental correlates of floristic structure in a temperate biodiversity hotspot".NEW PHYTOLOGIST 232.3(2021):1424-1435.
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