Mariette, Mylene M.; Pariser, Emma C.; Gilby, Amanda J.; Magrath, Michael; Pryke, Sarah R.; Griffith, Simon C.
-Although the costs of parental care are at the foundations of optimal-parental-investment theory, our understanding of the nature of the underlying costs is limited by the difficulty of measuring variation in foraging effort. We simultaneously measured parental provisioning and foraging behavior in a free-living population of Zebra Finches (Taeniopygia guttata) using an electronic monitoring system. We fitted 145 adults with a passive transponder tag and remotely recorded their visits to nest...[Show more]
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