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Assessing the impact of climate change on the distribution of Osmanthus fragrans using Maxent

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Abstract

Models that evaluate the potential geographic distribution of species can be used with a variety of important applications in conservation biology. Osmanthus fragrans has high ornamental, culinary, and medicinal value, and is widely used in landscaping. However, its preferred habitat and the environmental factors that determine its distribution remain largely unknown; the environmental factors that shape its suitability also require analysis. Based on 89 occurrence records and 30 environmental variables, this study constructed Maxent models for current as well as future appropriate habitats for O. fragrans. The results indicate that UV-B seasonality (19.1%), precipitation seasonality (18.8%), annual temperature range (13.1%), and mean diurnal temperature range (12.5%) were the most important factors used for interpreting the environmental demands for this species. Highly appropriate habitats for O. fragrans were mainly distributed in southwestern Jiangsu, southern Anhui, Shanghai, Zhejiang, Fujian, northern Guangdong, Guangxi, southern Hunan, southern Hubei, Sichuan, and Taiwan. Under climate change scenarios, the spatial extent of the area of suitable distribution will decrease, and the distribution center of O. fragrans will shift to the southwest. The results of this study will help land managers to avoid blindly introducing this species into inappropriate habitat while improving O. fragrans yield and quality.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This work was supported by the Forestry Science and Technology Promotion and Demonstration Fund of Central Finance (Grant No. [2018]TG08); and the Construction of Jiangsu Modern Agricultural Industry Technology System (Grant No. JATS [2019]448).

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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Fen Kong Liang Tang, Huan He, and Fuxia Yang. The first draft of the manuscript was written by Jun Tao and Weicheng Wang, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Jun Tao or Weicheng Wang.

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The authors declare no competing interests.

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Responsible Editor: Philippe Garrigues

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Kong, F., Tang, L., He, H. et al. Assessing the impact of climate change on the distribution of Osmanthus fragrans using Maxent. Environ Sci Pollut Res 28, 34655–34663 (2021). https://doi.org/10.1007/s11356-021-13121-3

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  • DOI: https://doi.org/10.1007/s11356-021-13121-3

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