globalchange  > 气候变化与战略
DOI: 10.1111/ele.13692
论文题名:
An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts
作者: Nørgaard L.S.; Zilio G.; Saade C.; Gougat-Barbera C.; Hall M.D.; Fronhofer E.A.; Kaltz O.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期:4
起始页码: 739
结束页码: 750
语种: 英语
中文关键词: disease ; dispersal syndrome ; eco-evolution ; epidemics ; experimental evolution ; Holospora undulata ; horizontal and vertical transmission ; host–parasite interactions ; Paramecium caudatum ; range expansion
英文关键词: biological invasion ; dispersal ; evolutionary biology ; horizontal transmission ; protozoan ; range expansion ; trade-environment relations ; trade-off ; virulence ; Bacteria (microorganisms) ; Holospora undulata ; Paramecium caudatum ; Protozoa ; animal ; evolution ; genetics ; Holosporaceae ; host parasite interaction ; Paramecium caudatum ; parasite ; virulence ; Animals ; Biological Evolution ; Holosporaceae ; Host-Parasite Interactions ; Paramecium caudatum ; Parasites ; Virulence
英文摘要: Exploitative parasites are predicted to evolve in highly connected populations or in expanding epidemics. However, many parasites rely on host dispersal to reach new populations, potentially causing conflict between local transmission and global spread. We performed experimental range expansions in interconnected microcosms of the protozoan Paramecium caudatum, allowing natural dispersal of hosts infected with the bacterial parasite Holospora undulata. Parasites from range front treatments facilitated host dispersal and were less virulent, but also invested less in horizontal transmission than parasites from range cores. These differences were consistent with parameter estimates derived from an epidemiological model fitted on population-level time-series data. Our results illustrate how dispersal selection can have profound consequences for the evolution of parasite life history and virulence. Decrypting the eco-evolutionary processes that shape parasite 'dispersal syndromes' may be important for the management of spreading epidemics in changing environments, biological invasions or in other spatial non-equilibrium settings. © 2021 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166898
Appears in Collections:气候变化与战略

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作者单位: School of Biological Sciences, Centre for Geometric Biology, Monash University, Melbourne, 3800, Australia; ISEM, University of Montpellier, CNRS, IRD, EPHE, Montpellier, France

Recommended Citation:
Nørgaard L.S.,Zilio G.,Saade C.,et al. An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts[J]. Ecology Letters,2021-01-01,24(4)
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