Published online by Cambridge University Press: 05 June 2012
Overview
Pair bonds and parental behaviour are among the most variable social traits. To understand how and why these traits are so variable, we investigate three issues in this chapter. First, we present an overview of recent work on molecular and neural aspects of pair bonds and parental care using microtine rodents as model organisms. We focus on two neuropeptides, oxytocin and vasopressin, and show that although both molecules are found in both sexes, oxytocin plays a more prominent role in regulating parenting and pair bonding in females, whereas vasopressin serves this role in males. Variation in the expression of oxytocin and vasopressin receptors appears to contribute to species and individual differences in social behaviour. These studies also show that although oxytocin and vasopressin function in distinct brain regions, they act within the same neural circuit. Therefore, females and males appear to accomplish behavioural changes in pair bonding and parental care by altering the responsiveness of the same neural circuit. Second, studies of pair bonds and parental care in natural populations have revealed that these traits are often tied together. Cost–benefit analyses of both traits in a game-theoretic framework provide novel insights into how diverse pair bonding and parental care may have evolved. Recent work emphasises the role of social environment in influencing pair bonding and care. Finally, we point out that currently there is a schism between proximate and ultimate approaches to understanding pair bonding and parental care.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.