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Monogamy: One male and one female have an exclusive mating relationship. The term "pair bonding" often implies this. This is associated with one-male, one-female group compositions. There are two types of monogamy: type 1, which is facultative, and type 2, which is obligate. Facultative monogamy occurs when there are very low densities in a ...
Fraternal polyandry was (and sometimes still is) found in certain areas of Tibet, Nepal, and Northern India, as well as some central African cultures [10] where polyandry was accepted as a social practice. [6] [11] The Ezhava and Toda people of southern India practice fraternal polyandry, but monogamy has become prevalent recently. [12]
Acorn woodpeckers provide substantial information on breeding systems because they practice monogamy, polyandry, and polygyny. In polyandry the presence of more male breeders in acorn woodpeckers has shown that females reproduce the optimal clutch size and that with paternity sharing between males it is behaviorally more stable increasing male ...
Monogamy (/ m ə ˈ n ɒ ɡ ə m i / mə-NOG-ə-mee) is a relationship of two individuals in which they form a mutual and exclusive intimate partnership.Having only one partner at any one time, whether that be for life or whether that be serial monogamy, contrasts with various forms of non-monogamy (e.g., polygamy or polyamory). [1]
The authors found that polyandry was most common in egalitarian societies, and suspected contributors to polyandry included fewer men (due to the existence or threat of high adult male mortality or absence/travel) and higher male contributions towards food production. [6] Polyandry still appears to occur in the minority of societies.
[3] [12] With social monogamy there may not be an expected sexual fidelity between the males and the females. [1] [13] The existence of purely social monogamy is a polygamous or polyandrous social pair with extra pair coupling. [14] Social monogamy has been shown to increase fitness in prairie voles.
It is important to emphasize the distinctions between monogyny and polyandry, and monogyny and monogamy. Polyandry is a mating system by which a female mates with more than one male; the male, in turn, can also mate with more than one female.
For instance, monogamy infers exclusive mating access and, thus, greater paternity certainty. Observed mating systems in primates include: monogamy, polyandry, polygyny and polygamy (as described below). Monogamy, or a monogamous mating system, is when one adult male and one adult female have a preferential partner for copulation. [1]