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The incidence of plague has rebounded in the Americas, Asia, and Africa alongside rapid globalization and climate change. Previous studies have shown local climate to have significant nonlinear effects on plague dynamics among rodent communities. We analyzed an 18-year database of plague, spanning 1998 to 2015, in the foci of Mongolia and China to trace the associations between marmot plague and climate factors. Our results suggested a density-dependent effect of precipitation and a geographic location-dependent effect of temperature on marmot plague. That is, a significantly positive relationship was evident between risk of plague and precipitation only when the marmot density exceeded a certain threshold. The geographical heterogeneity of the temperature effect and the contrasting slopes of influence for the Qinghai-Tibet Plateau (QTP) and other regions in the study (nQTP) were primarily related to diversity of climate and landscape types.

Original publication

DOI

10.1038/s41598-023-38966-1

Type

Journal article

Journal

Scientific reports

Publication Date

07/2023

Volume

13

Addresses

Vanke School of Public Health, Tsinghua University, Beijing, 100084, China.

Keywords

Animals, Rodentia, Marmota, Plague, China, Tibet, Mongolia