The Effects of Male-Biased Parasitism on Population Dynamics
Author Information
Author(s): Martin R. Miller, Andrew White, Kenneth Wilson, Michael Boots
Primary Institution: Department of Animal and Plant Sciences, University of Sheffield
Hypothesis
How does increased susceptibility to infection in males affect population dynamics under different mating systems?
Conclusion
Male-biased parasitism can lead to different population dynamics compared to unbiased parasitism, especially at higher case mortalities.
Supporting Evidence
- Male-biased parasitism is thought to be more common in various species.
- At low case mortality, the dynamics are similar for male-biased and unbiased parasitism.
- At higher case mortalities, significant differences in population dynamics were observed.
Takeaway
This study looks at how male animals get sick more often than females and how that affects their populations. It finds that when more males are sick, it can change how the whole group of animals grows and survives.
Methodology
The study uses a theoretical two-sex model to analyze the effects of male-biased parasitism on population dynamics under different mating systems.
Potential Biases
The model may not fully capture the complexities of real-world host-parasite interactions and the effects of sexual selection.
Limitations
The model assumes that males have greater susceptibility to infection without considering other differential effects, and it does not account for overlapping generations.
Digital Object Identifier (DOI)
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