MOVEMENTS OF TWO EXPERIMENTALLY DISPLACED BROWN TREECREEPERS Climacteris picumnus IN A MATRIX OF WOODLAND AND PASTURE
| Posted: |
20/07/2021 |
| Author(s): |
Caren B. Cooper |
Previous work found that Brown Treecreepers
Climacteris picumnus were unable to disperse to isolated
woodland patches in the New England Tablelands, northern New South Wales. I attempted to understand dispersal
behaviour by testing how Brown Tre ecreepers react to landscape patterns while moving. I radio-tagged two male
Brown Treecreepers on their resident territories and released them on territories two kilometres away. I expected
to follow the return paths of these birds across a matrix of pastures and woodlands within hours of release. The
male that I moved to a new territory connected directly to the original territory by woodlands returned within four
days. The male that I moved to a new territory which was isolated from the original territory by cleared land did
not return. The post-release movements of both males were confined to woodlands. These observations reveal
the limited movement behaviour of male Brown Treecreepers and provide anecdotal evidence that non-wooded
habitat is a barrier to dispersal in this species.
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