Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1111/j.0030-1299.2008.16404.x
Title (Primary) Parental versus offspring control on food division within the brood: the role of hatching asynchrony
Author Rodríguez, C.; Johst, K.; Bustamante, J.
Source Titel Oikos
Year 2008
Department OESA
Volume 177
Issue 5
Page From 719
Page To 728
Language englisch
Abstract Using an individual-based simulation model we study how different mechanisms of food division among multiple offspring influence nestling number and quality, as well as parental effort. We consider the combination of different scenarios of food availability (feeding conditions), hatching asynchrony and food division. If parents have full control on how to divide food among offspring, asynchronous broods have higher breeding performance than synchronous ones in a wide range of feeding conditions, giving theoretical support to empirically proved benefits of hatching asynchrony. If parents accept the outcome of sibling competition there is a threshold in feeding conditions below which asynchronous broods produced more fledglings and the reverse was true above the threshold. Interestingly, parents relying on the outcome of nestling competition do not necessarily differ in breeding performance from those which have full control over food allocation. Our study combines hatching asynchrony, provisioning behaviour of parents, jostling behaviour of nestlings and feeding conditions as a network of interacting processes of enormous interest to fully understand the parent-offspring conflict.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1363
Rodríguez, C., Johst, K., Bustamante, J. (2008):
Parental versus offspring control on food division within the brood: the role of hatching asynchrony
Oikos 177 (5), 719 - 728 10.1111/j.0030-1299.2008.16404.x