Publication Type: | Journal Article |
Year of Publication: | 1997 |
Authors: | Waite, TA, Strickland, D |
Journal: | The Condor |
Volume: | 99 |
Issue: | 2 |
Date Published: | 1997 |
ISBN Number: | 00105422 |
Keywords: | Corvidae, Garrulus, Garrulus glandarius, Perisoreus, Perisoreus canadensis |
Abstract: | We present evidence for cooperative breeding in Gray Jays (Perisoreus canadensis), a species characterized by delayed dispersal but long thought not to exhibit the life-history tactic of helping. Our findings to date suggest that the alloparental care of younger siblings by philopatric yearlings is confined to the post-fledging period of nutritional dependence. We encourage other workers to investigate whether helping may be confined to this period in other semi-social species as well. Ongoing work is aimed at evaluating the fitness consequences of helping in our study population. |
URL: | http://www.jstor.org/stable/1369960 |
Short Title: | The Condor |
Taxonomic name: