The ecology of mosquito populations in relation to weather conditions,
emergent plants and predation in an urban wetland of Canberra was
studied. Anopheles annulipes, Aedes notoscriptus, Aedes australicus,
Aedes alboannulata, Culex annulirostris and Culex quinquefasciatus
were found. Temperature was a major climatic factor in determining
the abundance of mosquito populations in the wetland. First
collections and subsequent development of mosquitoes in Ginninderra wetland are likely to depend on local weather conditions each year.
The wetland proper was not a suitable habitat for mosquito breeding.
Tall emergent vegetation may have obstructed oviposition and
predation was also important in limiting colonization by mosquitoes.
Instead, isolated temporary waterbodies which were free of predators,
such as ground depressions, tyre tracks, domestic waste containers,
were the most important habitats for mosquitoes adjacent to the
Ginninderra wetland.
Field experiments found that predation of mosquito larvae by
mosquitofish Gambusia qffinis and notonectids Anisops was more
efficient in sunlight than shade and this was affected by the height of
emergent plants.
| Identifer | oai:union.ndltd.org:ADTP/219019 |
| Date | January 1993 |
| Creators | Hoa, Vu Minh, n/a |
| Publisher | University of Canberra. Resource & Environmental Science |
| Source Sets | Australiasian Digital Theses Program |
| Language | English |
| Detected Language | English |
| Rights | ), Copyright Vu Minh Hoa |
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