Technical Comments

Response to Comment on "Parasites as a Viability Cost of Sexual Selection in Natural Populations of Mammals"

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Science  04 Apr 2003:
Vol. 300, Issue 5616, pp. 55
DOI: 10.1126/science.1081430

Figures

  • Figure 1

    SBP and mortality in wild mammals and humans. (A) Relation between sex bias in parasitism and sex bias in home range size in wild mammals. Each point represents a single species, and the line shows the least-squares regression (see main text for details). (B) Relation between the independent contrast scores for sex bias in parasitism and sex bias in home range size in wild mammals. Each point represents an independent contrast score generated using the program CAIC, and the line represents the least-squares regression, with the intercept forced through the origin. (C) Age-dependent variation in the rate of mortality (deaths per 100,000 population) attributed to non-HIV parasitic and infectious diseases in the United States in 1997 (10). (D) Relation between number of deaths caused by parasitic and infectious diseases in males and females. Data were log10-transformed. Each point represents data from a single country during the year 1996 (when available). The solid line represents the least-squares regression (y = 0.3617 ± 1.0080x;F 1,49 = 156.6, P < 0.0001,r 2 = 0.76). The dashed line shows the expected relationship (1:1) if males and females were equally likely to die from parasitic and infectious diseases.

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