首页|Spatial patterns and drivers of native plant diversity in Hainan,China

Spatial patterns and drivers of native plant diversity in Hainan,China

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Hainan Island has the most extensive and well-preserved tropical forests in China.With rapid economic development of Hainan,biodiversity is increasingly at risk.Determining the spatial patterns of plant diversity in Hainan and explaining the drivers behind plant diversity are important considerations in assessing and maximizing the effectiveness of national parks,such as the newly designated Hainan Rainforest National Park.We assessed phylogenetic diversity patterns,and species richness using 106,252 georeferenced specimen records and a molecular phylogeny of 3,792 native plant species.Based on phylogenetic range-weighted turnover metrics,we divided Hainan flora into four major floristic units.The Grade of Membership model was used to further verify the four units,and to understand their boundaries and the internal structure of each floristic unit.Finally,the best combination model was used to explore the driving mechanisms underlying the division.Our results reveal that central Hainan is the most important hotspot for plant endemism and diversity,followed by the southern area.Environmental energy is the main factor determining the spatial patterns of native plant diversity on the island,and accessibility has the greatest impact on native plant diversity among social factors.We explore patterns of spatial phylogenetics and biogeography to identify potential priorities for management and conservation drivers of plant diversity patterns across Hainan,to provide the basis for the effective protection of native plant diversity and the improvement of national parks of Hainan Island.

biodiversitydriversfloristic unitHainan IslandHainan Tropical Rainforest National Parkspatial phylogenetics

Guo-Qing Wang、Rosa A.Scherson、Diego Vera、Yun-Hao Bai、Jun Wen、Lin-Yuan Guo、Alice C.Hughes、Hua-Feng Wang

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Sanya Nanfan Research Institute of Hainan University,Hainan Yazhou Bay Seed Laboratory,Sanya 572025,China

Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture,Sanya 572025,China

Laboratorio de Evolución y Sistemática,Facultad de Ciencias Forestales y Conservación de la Naturaleza,Universidad de Chile,Santiago,Chile

Institute of Ecology,College of Urban and Environmental Sciences,Key Laboratory for Earth Surface Processes of the Ministry of Education,Peking University,Beijing 100871,China

Department of Botany,National Museum of Natural History,Smithsonian Institution,Washington,DC 20013-7012,USA

School of Biological Sciences,University of Hong Kong,Hongkong,China

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国家自然科学基金国家自然科学基金Project of Sanya Yazhou Bay Science and Technology CityHainan Universityopen funding from Huadong Normal Universityopen funding from Huadong Normal University

3227022132160273SCKJ-JYRC-2022-83XTCX2022NYB0gSHUES2021A08SHUES2022A06

2024

10.1111/jse.13017

植物分类学报
中国科学院植物研究所　中国植物学会

植物分类学报

CSTPCD
影响因子：0.322
ISSN：1674-4918
年,卷(期)：2024.62(4)
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