气候变化领域集成服务门户(CCPortal): A metapopulation model of social group dynamics and disease applied to Yellowstone wolves

CCPortal

DOI	10.1073/pnas.2020023118
	A metapopulation model of social group dynamics and disease applied to Yellowstone wolves
	Brandell E.E.; Dobson A.P.; Hudson P.J.; Cross P.C.; Smith D.W.
发表日期	2021
ISSN	00278424
卷号	118 期号:10
英文摘要	The population structure of social species has important consequences for both their demography and transmission of their pathogens. We develop a metapopulation model that tracks two key components of a species’ social system: average group size and number of groups within a population. While the model is general, we parameterize it to mimic the dynamics of the Yellowstone wolf population and two associated pathogens: sarcoptic mange and canine distemper. In the initial absence of disease, we show that group size is mainly determined by the birth and death rates and the rates at which groups fission to form new groups. The total number of groups is determined by rates of fission and fusion, as well as environmental resources and rates of intergroup aggression. Incorporating pathogens into the models reduces the size of the host population, predominantly by reducing the number of social groups. Average group size responds in more subtle ways: infected groups decrease in size, but uninfected groups may increase when disease reduces the number of groups and thereby reduces intraspecific aggression. Our modeling approach allows for easy calculation of prevalence at multiple scales (within group, across groups, and population level), illustrating that aggregate population-level prevalence can be misleading for group-living species. The model structure is general, can be applied to other social species, and allows for a dynamic assessment of how pathogens can affect social structure and vice versa. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Infectious disease; Metapopulation; Model; Social groups; Yellowstone
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180353
作者单位	Center for Infectious Disease Dynamics, Department of Biology, Huck Institute of the Life Sciences, Pennsylvania State University, University Park, PA 16802, United States; Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08540, United States; Santa Fe Institute, Santa Fe, NM 87501, United States; US Geological Survey, Northern Rocky Mountain Science Center, Bozeman, MT 59715, United States; Wolf Project, Yellowstone Center for Resources, Yellowstone National Park, WY 82190, United States
推荐引用方式 GB/T 7714	Brandell E.E.,Dobson A.P.,Hudson P.J.,et al. A metapopulation model of social group dynamics and disease applied to Yellowstone wolves[J],2021,118(10).
APA	Brandell E.E.,Dobson A.P.,Hudson P.J.,Cross P.C.,&Smith D.W..(2021).A metapopulation model of social group dynamics and disease applied to Yellowstone wolves.Proceedings of the National Academy of Sciences of the United States of America,118(10).
MLA	Brandell E.E.,et al."A metapopulation model of social group dynamics and disease applied to Yellowstone wolves".Proceedings of the National Academy of Sciences of the United States of America 118.10(2021).