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A.S. Pell & C.R. Tidemann
Abstract
This paper examines factors which could influence the breeding success
of native parrots in savannah and woodland areas in which substantial
populations of the introduced hollow-nesting sturnids, myna Acridotheres
tristis and starling Sturnus vulgaris are present.
The two exotic sturnids were shown to be the dominant users of available
nest resources (nest-boxes and available hollows) in the study sites.
The myna was successful in most aggressive encounters with starling
and the two native parrots during the period of nest-site selection
and occupancy. There was evidence of partitioning of nest resources
between species in the different areas and habitats available. The
exotic sturnids, particularly the myna, demonstrated the potential
to reduce the breeding success of the native parrots studied.
Copyright © Elsevier Science Limited.
Reference
Pell, A.S. and Tidemann, C.R. (1997). The impact of two exotic
hollow-nesting birds on two native parrots in savannah and woodland
in eastern Australia. Biological Conservation 79:
145-153.
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