Reasons and Consequences away from Monogamy

The human existence record development (i.age., quick delivery durations, apparently higher youngster success, and you may several years regarding juvenile dependency) means that mothers usually are regarding the status out of support numerous dependents of numerous decades at the same time. Once the newborns, juveniles, and teens for each and every need different kinds of perseverance expenditures, moms and dads try presented having an allotment problem through the a lot of the reproductive field: ideas on how to look after newborns and small kids instead of diminishing go out spent in situations giving as well as most other tips having more mature people (Lancaster, 1991; Hurtado mais aussi al., 1992; Hrdy, 1999; Kaplan et al., 2000; Kramer, 2005b, 2010; Kramer and you will Veile, 2018). How moms and dads look bekar Nepali bayanlar ile tanД±ЕџД±n after which trade-over to support a sudden reproductive rate is certainly commercially linked with monogamy as well as the collaboration out-of fathers, sisters, and others to simply help parents improve dependents.

Collaborative Reproduction

, 2014), which in inclusion so you’re able to men parental capital, is a key identifying part of individual sociality, cognition, and demographic success (Hrdy, 2005, 2009; Kramer, 2010; van Schaik and you will Burkart, 2010; Kramer and Greaves, 2011). Multiple current phylogenetic analyses promote persuasive research one cooperative breeding into the bird, insect, and you may mammalian taxa are preceded by a descent regarding monogamy (Hughes mais aussi al., 2008; Cornwallis mais aussi al., 2010; Lukas and you may Clutton-Brock, 2012). This new reasoning would be the fact when you look at the a non-monogamous mating system, a beneficial sexually adult personal is likely to be significantly more closely related so you’re able to his very own offspring (roentgen = 0.5) rather than sisters having an alternate mother or father (r between siblings = 0.25). Celý příspěvek →