Journal of Avian Biology 30, 486-490.
Parental food provisioning is unrelated to manipulated offspring food demand in a nocturnal single-provisioning alcid, the Rhinoceros Auklets.
A. Takahashi, M. Kuroki, Y. Niizuma and Y. Watanuki 1999
The effects of offspring food demand on the regulation of parental food provisioning were examined in the Rhinoceros Auklets Cerorhinca monocerata, a nocturnal single-provisioning species, by conducting mate removal and supplementary feeding experiments. Parents did not adjust their level of food provisioning in response to an increased or a decreased chick food demand, contrasting with previous studies on Atlantic puffins Fratercula arctica and procellariiforms that provision their chicks at shorter intervals. The chicks reared by a single parent grew slower while those receiving supplementary food grew faster and fledged heavier and younger. The body condition of parents did not change.
BD99-3
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