首页|The mid-domain effect in flowering phenology

The mid-domain effect in flowering phenology

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The timing of flowering is an important driver of species distribution and community assembly patterns.However,we still have much to learn about the factors that shape flowering diversity(i.e.,number of species flowering per period)in plant communities.One potential explanation of flowering diversity is the mid-domain effect,which states that geometric constraints on species ranges within a bounded domain(space or time)will yield a mid-domain peak in diversity regardless of ecological factors.Here,we determine whether the mid-domain effect explains peak flowering time(i.e.,when most species of communities are flowering)across China.We used phenological data of 16,267 herbaceous and woody species from the provincial Flora in China and species distribution data from the Chinese Vascular Plant Distribution Database to determine relationships between the observed number of species flowering and the number of species flowering as predicted by the mid-domain effect model,as well as between three climatic variables(mean minimum monthly temperature,mean monthly precipitation,and mean monthly sunshine duration).We found that the mid-domain effect explained a significant proportion of the temporal variation in flowering diversity across all species in China.Further,the mid-domain effect explained a greater proportion of variance in flowering diversity at higher latitudes than at lower lati-tudes.The patterns of flowering diversity for both herbaceous and woody species were related to both the mid-domain effect and environmental variables.Our findings indicate that including geometric constraints in conjunction with abiotic and biotic predictors will improve predictions of flowering di-versity patterns.

Flowering diversityFunctional biogeographyLatitudinal gradientMacroecologyMacrophenologyNull model

Yanjun Du、Rongchen Zhang、Xinran Tang、Xinyang Wang、Lingfeng Mao、Guoke Chen、Jiangshan Lai、Keping Ma

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School of Tropical Agriculture and Forestry(School of Agricultural and Rural Affairs,School of Rural Revitalization),Hainan University,Haikou 570228,China

HNU-ASU Joint International Tourism College,Hainan University,Haikou 570228,China

School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200062,China

College of Ecology and Environment,Nanjing Forestry University,Nanjing 210037,China

State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China

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国家自然科学基金Jiangsu Social Development Project

42261004BE2022792

2024

10.1016/j.pld.2024.05.005

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCD
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2024.46(4)