气候变化领域集成服务门户(CCPortal): A unifying framework for the transient parasite dynamics of migratory hosts

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DOI	10.1073/pnas.1908777117
	A unifying framework for the transient parasite dynamics of migratory hosts
	Peacock S.J.; Krkošek M.; Lewis M.A.; Molnár P.K.
发表日期	2020
ISSN	0027-8424
起始页码	10897
结束页码	10903
卷号	117 期号:20
英文摘要	Migrations allow animals to track seasonal changes in resources, find mates, and avoid harsh climates, but these regular, long-distance movements also have implications for parasite dynamics and animal health. Migratory animals have been dubbed “superspreaders” of infection, but migration can also reduce parasite burdens within host populations via migratory escape from contaminated habitats and transmission hotspots, migratory recovery due to parasite mortality, and migratory culling of infected individuals. Here, we show that a single migratory host-macroparasite model can give rise to these different phenomena under different parametrizations, providing a unifying framework for a mechanistic understanding of the parasite dynamics of migratory animals. Importantly, our model includes the impact of parasite burden on host movement capability during migration, which can lead to “parasite-induced migratory stalling” due to a positive feedback between increasing parasite burdens and reduced movement. Our results provide general insight into the conditions leading to different health outcomes in migratory wildlife. Our approach lays the foundation for tactical models that can help understand, predict, and mitigate future changes of disease risk in migratory wildlife that may arise from shifting migratory patterns, loss of migratory behavior, or climate effects on parasite development, mortality, and transmission. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Host-parasite; Migration; Population dynamics; Wildlife health
语种	英语
scopus关键词	animal behavior; Article; climate change; controlled study; host parasite interaction; mathematical model; migratory species; parasite development; parasite dynamics; parasite load; parasite mortality; parasite phenomena and functions; parasite transmission; population dynamics; positive feedback; priority journal; wildlife; animal; animal disease; biological model; ecosystem; host parasite interaction; mortality; parasite; parasitology; physiology; population migration; season; wild animal; Animal Diseases; Animal Migration; Animals; Animals, Wild; Behavior, Animal; Ecosystem; Host-Parasite Interactions; Models, Biological; Parasites; Population Dynamics; Seasons
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/160954
作者单位	Peacock, S.J., Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada, Laboratory of Quantitative Global Change Ecology, Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada; Krkošek, M., Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada; Lewis, M.A., Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2G1, Canada, Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, AB T6G 2G1, Canada; Molnár, P.K., Laboratory of Quantitative Global Change Ecology, Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada, Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada
推荐引用方式 GB/T 7714	Peacock S.J.,Krkošek M.,Lewis M.A.,et al. A unifying framework for the transient parasite dynamics of migratory hosts[J],2020,117(20).
APA	Peacock S.J.,Krkošek M.,Lewis M.A.,&Molnár P.K..(2020).A unifying framework for the transient parasite dynamics of migratory hosts.Proceedings of the National Academy of Sciences of the United States of America,117(20).
MLA	Peacock S.J.,et al."A unifying framework for the transient parasite dynamics of migratory hosts".Proceedings of the National Academy of Sciences of the United States of America 117.20(2020).