Jump to Main Content
- Nomi, Daisuke; Yuta, Teru; Koizumi, Itsuro
- Acta ornithologica 2015 v.50 no.2 pp. 213-220
- sex allocation, etc ; Parus major; clutch size; cost effectiveness; females; males; nests; parents; prediction; progeny; rearing; sex ratio; sexual dimorphism; Show all 13 Subjects
- ... Over decades, several hypotheses for sex allocation have been proposed and tested repeatedly. However, many studies have shown inconsistent results among species, populations, and study years. We investigated sex ratio patterns in a population of Japanese Tit Parus minor, which is closely related to the Great Tit Parus major. In this fouryear study, a total of 1500 offspring from 191 nests were se ...