Generalism and the evolution of parasite virulence
Generalism and the evolution of parasite virulence
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DOI：
10.1016/j.tree.2013.07.002
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发表时间：
2013-10-01
影响因子：
16.8
通讯作者：
Boots, Mike
中科院分区：
文献类型：
--
作者：
Leggett, Helen C.;Buckling, Angus;Boots, Mike
寄生虫对宿主危害（毒力）的演变将受到许多因素的影响，尤其是寄生虫可以感染的宿主范围。在这里，我们认为寄生虫的宿主范围（通性）可能会直接影响观察到的寄生虫毒力水平的四种方式：通性的成本，感染的多样性，适应不良的毒力，和主机的可用性。整合寄生虫感染性范围与生活史进化将产生新的一般假设的进化生态学的毒力，以及明确的预测新出现的疾病的毒力所造成的主机转移。
The evolution of parasite-imposed host harm (virulence) will be affected by numerous factors, not least the range of hosts that parasites can infect. Here, we consider four ways that parasite host range (generalism) might directly affect observed levels of parasite virulence: costs of generalism, multiplicity of infection, maladaptive virulence, and host availability. Integrating parasite infectivity range with life-history evolution will generate novel general hypotheses for the evolutionary ecology of virulence, as well as explicit predictions about the virulence of emerging diseases resulting from host shifts.