Juvenile helping behaviour in the Dusky Moorhen, Gallinula tenebrosa

Putland, D. A. and Goldizen, A. W. (2001) Juvenile helping behaviour in the Dusky Moorhen, Gallinula tenebrosa. Emu, 101 3: 265-267. doi:10.1071/MU00046


Author Putland, D. A.
Goldizen, A. W.
Title Juvenile helping behaviour in the Dusky Moorhen, Gallinula tenebrosa
Journal name Emu   Check publisher's open access policy
ISSN 0158-4197
Publication date 2001-01-01
Sub-type Article (original research)
DOI 10.1071/MU00046
Volume 101
Issue 3
Start page 265
End page 267
Total pages 3
Editor D. Morton
Place of publication Collingwood, Victoria, Australia
Publisher CSIRO Publishing
Language eng
Subject C1
270707 Sociobiology and Behavioural Ecology
780105 Biological sciences
Abstract In Dusky Moorhens, Gallinula tenebrosa, helping behaviour maybe displayed by juveniles when groups contain offspring of different age classes. We investigated the frequency and amount of parental care provided by juvenile moorhens to younger siblings from subsequent same-year broods. In some social groups, juveniles provided up to 33% of the total number of feeds provided to chicks. Juveniles were observed to feed chicks when as young as six weeks of age, often while still receiving food from adults themselves. Low within-group relatedness and low reproductive costs associated with juvenile helping have important consequences for the cost-benefit ratio of helping behaviour in this species.
Keyword Ornithology
Natural-selection
Birds
Evolution
Chloropus
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Biological Sciences Publications
Ecology Centre Publications
 
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Created: Wed, 15 Aug 2007, 02:27:48 EST