Dispersal and recruitment of juvenile Red-capped Robins, Petroica goodenovii

Dowling, Damian K., Antos, Mark and Sahlman, Tobias 2003, Dispersal and recruitment of juvenile Red-capped Robins, Petroica goodenovii, Emu, vol. 103, no. 3, pp. 199-205, doi: 10.1071/MU03001.

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Title Dispersal and recruitment of juvenile Red-capped Robins, Petroica goodenovii
Formatted title Dispersal and recruitment of juvenile Red-capped Robins, Petroica goodenovii
Author(s) Dowling, Damian K.
Antos, Mark
Sahlman, Tobias
Journal name Emu
Volume number 103
Issue number 3
Start page 199
End page 205
Publisher CSIRO Publishing
Place of publication Collingwood, Vic.
Publication date 2003
ISSN 0158-4197
Summary Data on the dispersal and recruitment of juvenile birds following fledging are largely unreported for Australian birds. In this study, we investigated the short-distance dispersal of a sample of colour-banded, juvenile Red-capped Robins, Petroica goodenovii, in Terrick Terrick National Park, Victoria, Australia. Of 67 colour-banded juvenile birds that successfully reached independence during the 2000–01 breeding season, eight were recruited into the study area or adjacent areas for the following breeding season. A ninth bird was resighted in Gunbower State Forest, 36 km from where it was banded. This is the furthest recorded dispersal movement of a Red-capped Robin. Of 59 colour-banded juvenile birds that reached independence during the 2001–02 season, four remained within the study area for the remainder of the breeding season, but these birds were not present in the study area during the following breeding season. Juvenile birds that successfully reached independence and dispersed were heavier as nestlings, when controlled for age and date, than birds that disappeared (assumed dead) before reaching independence. Estimates of Red-capped Robin abundances within Terrick Terrick National Park were greater than those of nearby eucalypt woodlands, suggesting that the White Cypress-pine, Callitris glaucophylla, woodlands within the park offer good-quality habitat for Red-capped Robins and may be saturated with breeding territories. Thus, juveniles may be forced to establish breeding territories far from their natal territories. These results are discussed in relation to avenues for further research on juvenile dispersal in Australian birds and their conservation implications.
Language eng
DOI 10.1071/MU03001
Field of Research 060208 Terrestrial Ecology
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008643

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