PHI 2396 Lecture Notes - Lecture 5: Polygynandry, Sexual Coercion, Pair Bond
25 May 2015
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Mice the male helps in delivery, raising, etc. According to bateman"s principle this is not advantageous so why do we see it: sexual coercion (the females are not in control, benefits outweigh the costs. Risk of losing paternal effort of primary care. Stds can be a disease transferred through close proximity, ecto parasites. In species that use female polyandry the females have been found to have more white blood cells. Reduced infancitice if the males think there is a chance that the young is theres they are less likely to kill it this is a confusion tactic. Fertility insurance more likely to be pregnant. Good genes - higher chance that at least some of the young will get good genes. Types of male polygamy (polygyny: female defense polygyny. Silver backed gorillas the dominant male travels with the harem of females protecting them and mating with them: resource defense polygyny.
