Spatial patterns and determinants of Moraceae richness in China
中国桑科植物物种多样性格局及其主导因子作者机构：Key Laboratory of Tropical Biological Resources of Ministry of EducationCollege of Tropical CropsHainan UniversityHaikou 570228China Key Laboratory of Bio-Resource and Eco-Environment of Ministry of EducationCollege of Life SciencesSichuan UniversityChengdu 610065China Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of EducationCollege of Urban and Environmental SciencesPeking UniversityBeijing 100871China
出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)
年 卷 期：2022年第15卷第6期
页 面：1142-1153页
核心收录：
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
基 金：Strategic Priority Research Program of the Chinese Academy of Sciences(XDB31000000) National Key Research Development Program of China(2017YFA0605101,2017YFC0505203) National Natural Science Foundation of China(32C125026,31988102,31770566)
主 题：hydrothermal dynamic hypothesis tropical niche conservatism hypothesis Janzen’s hypothesis Moraceae environmental factor China
摘 要：Understanding large-scale patterns of biodiversity and their drivers remains central in *** hypotheses have been proposed,including hydrothermal dynamic hypothesis,tropical niche conservatism hypothesis,Janzen’s hypothesis and a combination model containing energy,water,seasonality and habitat ***,their relative contributions to groups with different lifeforms and range sizes remain controversial,which have limited our ability to understand the general mechanisms underlying species richness *** we evaluated how lifeforms and species range sizes influenced the relative contributions of these three hypotheses to species richness patterns of a tropical family *** distribution data of Moraceae species at a spatial resolution of 50 km×50 km and their lifeforms(***,small trees and large trees)were *** species richness patterns were estimated for the entire family,different life forms and species with different range sizes *** effects of environmental variables on species richness were analyzed,and relative contributions of different hypotheses were evaluated across life forms and species range size *** species richness patterns were consistent across different species groups and the species richness was the highest in Sichuan,Guangzhou and Hainan provinces,making these provinces the hotspots of this *** seasonality is the primary factor in determining richness variation of *** best combination model gave the largest explanatory power for Moraceae species richness across each group of range size and life forms followed by the hydrothermal dynamic hypothesis,Janzen’s hypothesis and tropical niche conservatism *** these models has a large shared effects but a low independent effect(5%),except rare *** findings suggest unique patterns and mechanisms underlying rare species richness and provide a theoretical basis for protection of the Moraceae species in China
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