Modelling of birds and locust-control operations in Eastern Australia

Szabo, Judit, Deveson, Ted and Astheimer, Lee 2003, Modelling of birds and locust-control operations in Eastern Australia, in AOC 2003 : Australasian Ornithological Conference : Programs and abstracts, Birds Australia, Carlton, Vic..

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Title Modelling of birds and locust-control operations in Eastern Australia
Author(s) Szabo, Judit
Deveson, Ted
Astheimer, Lee
Conference name Australasian Ornithological Conference (2003 : Canberra, A.C.T.)
Conference location Canberra, A.C.T.
Conference dates 10-13 December, 2003
Title of proceedings AOC 2003 : Australasian Ornithological Conference : Programs and abstracts
Publication date 2003
Publisher Birds Australia
Place of publication Carlton, Vic.
Summary Locust outbreaks provide an abundant, but unpredictable food source for many native species in Australia. For economic reasons, locust control is unavoidable and can affect a considerable area in Eastern Australia. Depending on the pesticide applied, locust control operations may affect birds in treated areas, either directly through intoxication of the predator, or indirectly, through elimination of its prey. As a preliminary step in identifying the potential impact of these operations on native species, the co-occurrence of birds and locust control operations was assessed using GIS mapping techniques. Data from the Birds of Australia New Atlas provided information about species' distribution between latitudes 17 and 37 degree S, and longitudes 136 and 152 degree E. Of the 834 species present in this region, 292 were chosen on the basis of their geographical distribution and occurrence west of the Great Dividing Range. Sightings for each species were mapped using reporting rates and number of observations per half-degree grid cells. Birds were categorised by habitat, distribution, movement and feeding habits and those species reported to consume Orthopterans were noted. APLC locust survey (1987–2000) and spraying data (1977–2002) were analysed and overlapped with soil and vegetation maps obtained from Geoscience Australia and Environment Australia to find significant hotspots for locust occurrence. These maps were then overlayed with bird distributions to identify the species most likely to be in areas of locust presence and spraying operations.
Language eng
Field of Research 060299 Ecology not elsewhere classified
HERDC Research category EN.1 Other conference paper
ERA Research output type E Conference publication
Copyright notice ©2003, AOC
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