Polygyny - Nature

Nature

Several species such as the wood mouse Apodemus sylvaticus possess a polygamous social order in which males mate with multiple females. Such circumstances result in competition between males during reproductive periods.

A variety of methods for practicing polygamy can be observed in the animal kingdom. For example, female defense polygyny is seen in marine amphipods, where the male herds the females into a cluster. This allows them to be protected by the male, while the male has continuous access to the females. Resource defense polygyny is a strategy seen in African cichlid fish, where the male collects empty snail shells which the females use to lay eggs. A third type is scramble competition polygamy, where females are widely spaced or fertility is time-limited, as in orangutans.