| DOI: | 10.1111/gcb.13769
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| 论文题名: | Simulated climate change, epidemic size, and host evolution across host-parasite populations |
| 作者: | Auld S.K.; Brand J.
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| 刊名: | Global Change Biology
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| ISSN: | 13541013
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| 出版年: | 2017
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| 语种: | 英语
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| 英文关键词: | Disease ecology
; Eco-evolutionary dynamics
; Global warming
; Mesocosms
; Parasitism
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| 英文摘要: | Climate change is causing warmer and more variable temperatures as well as physical flux in natural populations, which will affect the ecology and evolution of infectious disease epidemics. Using replicate seminatural populations of a coevolving freshwater invertebrate-parasite system (host: Daphnia magna, parasite: Pasteuria ramosa), we quantified the effects of ambient temperature and population mixing (physical flux within populations) on epidemic size and population health. Each population was seeded with an identical suite of host genotypes and dose of parasite transmission spores. Biologically reasonable increases in environmental temperature caused larger epidemics, and population mixing reduced overall epidemic size. Mixing also had a detrimental effect on host populations independent of disease. Epidemics drove parasite-mediated selection, leading to a loss of host genetic diversity, and mixed populations experienced greater evolution due to genetic drift over the season. These findings further our understanding of how diversity loss will reduce the host populations' capacity to respond to changes in selection, therefore stymying adaptation to further environmental change. © 2017 John Wiley & Sons Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/61190
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| Appears in Collections: | 影响、适应和脆弱性
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作者单位: | Biological and Environmental Sciences University of Stirling Stirling UK
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| Recommended Citation: | |
Auld S.K.,Brand J.. Simulated climate change, epidemic size, and host evolution across host-parasite populations[J]. Global Change Biology,2017-01-01
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