ArticleEvolution letters2026
Pace of life predicts parasite resistance and fecundity tolerance, but not mortality tolerance, among Trinidadian guppies,
Article in Evolution letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Host defense against parasites can include limiting parasite growth, "resistance," limiting the mortality cost of infection, "mortality tolerance," and limiting the reproductive cost of infection, "fecundity tolerance." Theoretically, these 3 host strategies have very different epidemiological and evolutionary outcomes. In particular, because mortality tolerance increases parasite population size, it is under strong positive frequency-dependent selection and may therefore be less variable between populations than either resistance or fecundity tolerance. Additionally, host investment in each strategy can be expected to differ between populations that experience different ecological conditions. Here, we tested how populations of Trinidadian guppies
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