SEXUAL SIZE DIMORPHISM AND AGING CHARACTERS IN THE LESSER SHEATHBBLL AT MARION ISLAND
- 1 March 1980
- journal article
- research article
- Published by Taylor & Francis in Ostrich
- Vol. 51 (1) , 39-43
- https://doi.org/10.1080/00306525.1980.9633539
Abstract
Mass and linear dimensions of adult, subadult and juvenile lesser sheathbills C. minor at Marion Island [Indian Ocean] are given. Males were larger than females in all dimensions but were otherwise similar in external appearance. The larger size of males is attributed to selection favoring male dominance in aggressive territorial encounters. External features of the head and the voice could be used to differentiate adults, subadults and juveniles in the field.This publication has 4 references indexed in Scilit:
- Birds of the Antarctic and Sub‐AntarcticPublished by Wiley ,1975
- Breeding Seasons and Sexual Dimorphism in Rockhopper PenguinsThe Auk, 1972
- Sexual Selection for Size Differences in Two Species of SandpipersEvolution, 1970
- Sexual Dimorphism and Differential Niche Utilization in BirdsOrnithological Applications, 1966