气候变化领域集成服务门户(CCPortal): An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts

CCPortal

DOI	10.1111/ele.13692
	An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts
	Nørgaard L.S.; Zilio G.; Saade C.; Gougat-Barbera C.; Hall M.D.; Fronhofer E.A.; Kaltz O.
发表日期	2021
ISSN	1461023X
起始页码	739
结束页码	750
卷号	24 期号:4
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.
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
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204457
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
推荐引用方式 GB/T 7714	Nørgaard L.S.,Zilio G.,Saade C.,et al. An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts[J],2021,24(4).
APA	Nørgaard L.S..,Zilio G..,Saade C..,Gougat-Barbera C..,Hall M.D..,...&Kaltz O..(2021).An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts.Ecology Letters,24(4).
MLA	Nørgaard L.S.,et al."An evolutionary trade-off between parasite virulence and dispersal at experimental invasion fronts".Ecology Letters 24.4(2021).