SEASONAL PATTERNS IN ABUNDANCE OF WATERFOWL (ANATIDAE) AT A WASTE STABILIZATION POND IN VICTORIA
| Posted: |
03/06/2021 |
| Author(s): |
Andrew J. Hamilton, Iain R. Taylor |
The seasonal abundance of waterfowl on a waste stabilization pond at the Western Treatment Plant, Victoria,
Australia, was studied over two years. The abundances of species that are considered to be highly dispersive,
such as the Pink-eared Duck
Malacorhynchus membranaceus and Grey Teal
Anas gracilis, were erratic and
inconsistent across the two years. For other species, such as the Australasian Shoveler
Anas rhynchotis, Black
Swan C
ygnus atratus, Pacific Black Duck
Anas superciliosa and Australian Shelduck
Tadorna tadornoides, more
consistent patterns were observed each year. Most species used the site during what would be expected to be
their non-breeding season. Australian Shelducks appeared to use the site as a late-spring/early-summer moulting
refuge.
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