Prediction of Suitable Distribution Area of Plateau pika ( Ochotona curzoniae ) in the Qinghai–Tibet Plateau under Shared Socioeconomic Pathways (SSPs)

Yinglian Qi, Xiaoyan Pu, Yaxiong Li, Dingai Li, Mingrui Huang, Xuan Zheng, Jiaxin Guo and Zhi Chen ()
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Yinglian Qi: School of Geographic Science, Qinghai Normal University, Xining 810008, China
Xiaoyan Pu: Medical College, Qinghai University, Xining 810016, China
Yaxiong Li: School of Life Science, Qinghai Normal University, Xining 810008, China
Dingai Li: School of Life Science, Qinghai Normal University, Xining 810008, China
Mingrui Huang: School of Life Science, Qinghai Normal University, Xining 810008, China
Xuan Zheng: School of Life Science, Qinghai Normal University, Xining 810008, China
Jiaxin Guo: School of Life Science, Qinghai Normal University, Xining 810008, China
Zhi Chen: School of Geographic Science, Qinghai Normal University, Xining 810008, China

Sustainability, 2022, vol. 14, issue 19, 1-23

Abstract: The Qinghai–Tibet Plateau is one of the regions most strongly affected by climate change. The climate feedback of the distribution of plateau pika, a key species, is closely related to the trophic structure of the plateau ecosystem and the development of agriculture and animal husbandry on the plateau. In order to understand the impact of future climate change on the suitable distribution area of plateau pika, potential suitable distribution areas of Plateau pika were predicted using the MaxEnt model under three climate scenarios (SSP 1-2.6, SSP 2-4.5, and SSP 5-8.5) in the near term (2021–2040) and medium term (2041–2060). The predictions were found to be highly accurate with AUC values of 0.997 and 0.996 for the training and test sets. The main results are as follows: (1) The precipitation of the wettest month (BIO 16), mean diurnal range (BIO 2), slope, elevation, temperature seasonality (BIO 4), and annual mean temperature (BIO 1) were the main influencing factors. (2) In the historical period, the total suitable distribution area of Plateau pika in the Qinghai–Tibet Plateau accounted for 29.90% of the total area at approximately 74.74 × 10 4 km 2 , concentrated in the eastern and central areas of the Qinghai–Tibet Plateau. (3) The total suitable distribution area of pika exhibited an expansion trend under SSP 1-2.6 and SSP 2-4.5 in the near term (2021–2040), and the expansion area was concentrated in the eastern and central parts of the Qinghai–Tibet Plateau. The expansion area was the largest in Qinghai Province, followed by Sichuan Province and Tibet. In contrast, the suitable distribution area shrank in the Altun Mountains, Xinjiang. Under SSP 5-8.5 in the near term and all scenarios in the medium term (2041–2060), the suitable distribution area of Plateau pika decreased to different degrees. The shrinkage area was concentrated at the margin of the Qaidam Basin, central Tibet, and the Qilian Mountains in the east of Qinghai Province. (4) Plateau pika migrated toward the east or southeast on the Qinghai–Tibet Plateau under the three climate scenarios. Under most of the scenarios, the migration distance was longer in the medium term than in the near term.

Keywords: Qinghai–Tibet Plateau; MaxEnt; pika; climate change; potential suitable area (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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