Factors and you can Outcomes regarding Monogamy
The human being lifetime background trend (we.age., quick birth intervals, apparently high youngster endurance, and a long period of teenager reliance) means that moms and dads are often on status off support multiple dependents of numerous age additionally. While the newborns, juveniles, and teens each wanted different varieties of hard work financial investments, parents is posed with an allocation condition during the most of its reproductive career: how-to take care of babies and you may small kids instead of reducing date spent in affairs giving food and other info for more mature college students (Lancaster, 1991; Hurtado et al., 1992; Hrdy, 1999; Kaplan mais aussi al., 2000; Kramer, 2005b, 2010; Kramer and you can Veile, 2018). Exactly how moms and dads eliminate so it exchange-out to assistance a rapid reproductive speed is definitely theoretically linked with monogamy therefore the collaboration of dads, sisters, while others to aid moms and dads raise dependents.
Collaborative Breeding
, 2014), which in addition to help you men parental financial support, try a key determining part of person sociality, knowledge, and market success (Hrdy, 2005, 2009; Kramer, 2010; van Schaik and Burkart, 2010; Kramer and you can Greaves, 2011). Numerous current phylogenetic analyses offer compelling evidence that collaborative reproduction into the bird, insect, and you will mammalian taxa is preceded by a descent away from monogamy (Hughes et al., 2008; Cornwallis ainsi que al., 2010; Lukas and Clutton-Brock, 2012). The reasoning is the fact inside the a low-monogamous mating system, an effective sexually mature personal might american men like to marry foreign women from be far more closely relevant so you can their own offspring (r = 0.5) rather than sisters who may have an alternative moms and dad (roentgen ranging from sisters = 0.25). (بیشتر…)