PARENTAL CARE IN RELATION TO BROOD SIZE IN THE HOUSE FINCH

摘要: Abstract Studies that quantify parental care in birds are often faced with the confounding effects of variation brood size. That is, nestlings from broods varying sizes may receive different quantities food for reasons not entirely related to quality adults. To control size, researchers divide feeding visitation rates by size yield a per-nestling rate. This presents problems, however, if adults adjust load response We examined relationship between and herbivorous House Finch (Carpodacus mexicanus) considering only but also sizes. As increased, overall rate increased both decreased. The was similar regardless whether we considered or actual loads, suggesting...