The mid-domain effect in flowering phenology.

IF 4.6 1区 生物学 Q1 PLANT SCIENCES Plant Diversity Pub Date : 2024-05-25 eCollection Date: 2024-07-01 DOI:10.1016/j.pld.2024.05.005
Yanjun Du, Rongchen Zhang, Xinran Tang, Xinyang Wang, Lingfeng Mao, Guoke Chen, Jiangshan Lai, Keping Ma
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Abstract

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 latitudes. 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 diversity patterns.

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花期的中域效应
开花时间是物种分布和群落组合模式的重要驱动因素。然而,对于植物群落中开花多样性(即每个时期开花的物种数量)的形成因素,我们还有很多东西要学习。开花多样性的一个潜在解释是中域效应,即在一个有界域(空间或时间)内,物种分布范围的几何限制将产生多样性的中域峰值,而与生态因素无关。在这里,我们要确定中域效应是否能解释中国各地的开花高峰期(即群落中大多数物种开花的时间)。我们利用《中国植物志》中 16,267 个草本和木本物种的物候数据以及中国维管束植物分布数据库中的物种分布数据,确定了观察到的开花物种数与中域效应模型预测的开花物种数之间的关系,以及三个气候变量(月平均最低气温、月平均降水量和月平均日照时间)之间的关系。我们发现,中域效应可以解释中国所有物种开花多样性的很大一部分时间变化。此外,中域效应对高纬度地区开花多样性变异的解释比例高于低纬度地区。草本和木本物种的开花多样性模式与中域效应和环境变量都有关系。我们的研究结果表明,将几何限制因素与非生物和生物预测因素结合起来,可以改善对开花多样性模式的预测。
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来源期刊
Plant Diversity
Plant Diversity Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
8.30
自引率
6.20%
发文量
1863
审稿时长
35 days
期刊介绍: Plant Diversity (formerly Plant Diversity and Resources) is an international plant science journal that publishes substantial original research and review papers that advance our understanding of the past and current distribution of plants, contribute to the development of more phylogenetically accurate taxonomic classifications, present new findings on or insights into evolutionary processes and mechanisms that are of interest to the community of plant systematic and evolutionary biologists. While the focus of the journal is on biodiversity, ecology and evolution of East Asian flora, it is not limited to these topics. Applied evolutionary issues, such as climate change and conservation biology, are welcome, especially if they address conceptual problems. Theoretical papers are equally welcome. Preference is given to concise, clearly written papers focusing on precisely framed questions or hypotheses. Papers that are purely descriptive have a low chance of acceptance. Fields covered by the journal include: plant systematics and taxonomy- evolutionary developmental biology- reproductive biology- phylo- and biogeography- evolutionary ecology- population biology- conservation biology- palaeobotany- molecular evolution- comparative and evolutionary genomics- physiology- biochemistry
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