Virulence metrics and decomposition.
<p>Virulence was assessed using different metrics of host fitness/harm: <b>(a)</b> larval mortality, <b>(b)</b> pupae mortality, <b>(c)</b> adult mortality, and <b>(d)</b> reduction in fecundity (after conversion to a proportion, and the resultin...
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2025
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| Резюме: | <p>Virulence was assessed using different metrics of host fitness/harm: <b>(a)</b> larval mortality, <b>(b)</b> pupae mortality, <b>(c)</b> adult mortality, and <b>(d)</b> reduction in fecundity (after conversion to a proportion, and the resulting value subtracted to 1). A linear model with regime as a fixed factor and replicate as a random factor was used to test for differences due to parasite treatment for each host fitness trait. <b>(e)</b> Exploitation was measured as the mean spore density at days 15 and 18 (i.e., spore load divided by wing size) for every replicate of each regime. A post hoc multiple comparison test was run afterward to determine pairwise differences between parasite regimes, illustrated by letters above the plot. If letters are missing, then no parasite regime differs from each other. <b>(f)</b> Per parasite pathogenicity, as the relationship between virulence and spore density. <b>(g)</b> Infectiousness-virulence relationship for this infection model. Given that in this infection model, the spore load is expected to decelerate in the measured chronic phase, the number of spores is not expected to increase and, therefore, provide a fair estimate of the total number of spores each of the regimes can transmit. There is a positive relationship between virulence and host infectiousness. See Table D in <a href="http://www.plospathogens.org/article/info:doi/10.1371/journal.ppat.1013294#ppat.1013294.s001" target="_blank">S1 Text</a> for further details on the statistical analysis.</p> |
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