4.7 Article

Climatic factors and human disturbance influence ungulate species distribution on the Qinghai-Tibet Plateau

期刊

SCIENCE OF THE TOTAL ENVIRONMENT
卷 869, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.scitotenv.2023.161681

关键词

Habitat suitability; MaxEnt model; Ungulate species; Zonation; Qinghai-Tibet Plateau

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By using the MaxEnt model, this study identified the distribution patterns of 19 ungulate species on the Qinghai-Tibet Plateau and found that their habitats have been greatly affected by human activities and climate change. The majority of these species are mainly distributed in the southeast of the plateau, and the key protected areas identified by the Zonation model are mainly located in this region as well. This research provides a scientific basis for addressing the development-protection contradiction and promoting biodiversity conservation on the Qinghai-Tibet Plateau.
Due to human activities and climate change, the habitats of ungulate species on the Qinghai-Tibet Plateau have been greatly affected in recent decades. In this study, the distribution patterns of 19 ungulate species on the Qinghai-Tibet Plateau were identified based on MaxEnt model in the past (1960-1990) and current periods (2000-2015). Then the changes of their habitat distribution and the species richness in different periods were compared. Finally, the Zonation model was used to identify the key protected areas of ungulate species. The results show that the MaxEnt model can well predict the distribution of ungulate species. Most ungulate species are mainly distributed in the southeast of the Qinghai-Tibet Plateau. The distance to lakes and precipitation are the main factors affecting the distribution of most ungulate species. The habitats originally located in the southeast of the Qinghai-Tibet Plateau have mainly extended northeastwards, while the habitats originally located in the northwest has been largely lost. The changes in the habitats of ungulate species in the southeast and northwest are diametrically opposite. The key protected areas identified by Zonation model are mainly located in the southeast of the Qinghai-Tibet Plateau. The existing nature reserves can effectively protect the suitable habitats of the Tibetan antelope, Tibetan wild ass and wild yak. This research can provide scientific basis for coordinating the contradiction between development and protection and promoting the biodiversity conservation on the Qinghai-Tibet Plateau.

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