The Effectiveness of Aerial Survey for Determining the Distribution of Rabbit Warrens in a Semiarid Enviroment

1976 ◽  
Vol 3 (1) ◽  
pp. 79
Author(s):  
JT Martin ◽  
e Zickefoos
Keyword(s):  
Strong Correlation ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
Ground Speed ◽  
Pastoral Area ◽  
South Wales

The distribution of rabbit warrens on six different classes of country in the semiarid pastoral area of New South Wales was assessed by aerial survey from an altitute of 300 m, at a ground speed of 110 km/h, on a complete cover basis. Ground assessment of warren distribution showed that the proportion of warrens found by aerial survey varied between a 94% underestimate and a 13 % overestimate. This variation shows a strong correlation with mean warren size.

An Aerial Survey of 3 Game Species of Waterfowl (Family Anatidae) Populations in Eastern Australia

1986 ◽  
Vol 13 (2) ◽  
pp. 213 ◽  
Author(s):  
LW Braithwaite ◽  
M Maher ◽  
SV Briggs ◽  
BS Parker
Keyword(s):  
Surface Waters ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
Game Species ◽  
South Wales ◽  
Black Duck ◽  
The Pacific ◽  
Eastern Australia ◽  
Central Eastern

Populations of waterfowl of three game species, the Pacific black duck Anus superciliosa, grey teal A. gibberifrons, and maned duck Chenonetta jubata, were assessed by aerial survey in October 1983 within a survey region of 2 697 000 km2 of eastern Australia. The numbers of each species were assessed on all surface waters of over 1 ha, and on a sample of smaller surface waters within 10 survey bands each 30 km wide and spaced at intervals of 2� latitude from 20�30' to 38�30'S. The area within the survey bands was 324 120 km2, which gave a sampling intensity of 12.0% of the land surface area. The area of features shown as wetlands or water impoundments within the survey bands on 1 : 2 500 000 topographic maps was 19 200 km2 or 11.2% of the total area of these features in the survey region. The area of surface waters surveyed was assessed at 465 300 ha. Assessments of populations of each species were tallied for wetlands by grid cells of 6 min of 1� longitude along the survey bands (258-309 km2 depending on latitude). Distributions were then mapped, with log*10 indices of populations in each cell. Distributions of the black duck and grey teal showed a pattern of intense aggregation in limited numbers of cells, that of the maned duck was more evenly distributed. The major concentrations of the Pacific black duck were recorded in northern New South Wales and the south-eastern, western, central eastern and central coastal regions of Queensland; those of the grey teal were in south-western, western and northern New South Wales and central-eastern Queensland; the maned duck was broadly distributed over inland New South Wales with the exception of the far west, inland southern Queensland, and central northern Victoria.

Habitat Utilization by Sympatric Red Kangaroos Macropus-Rufus, and Western Grey Kangaroos Macropus-Fuliginosus, in Western New-South-Wales

1988 ◽  
Vol 15 (4) ◽  
pp. 413 ◽  
Author(s):  
D Priddel
Keyword(s):  
Temporal Change ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
Habitat Utilization ◽  
South Wales ◽  
Macropus Rufus

Habitat utilisation by sympatric red kangaroos, Macropus rufus, and western grey kangaroos, M. fuliginosus, was monitored by aerial survey. Red kangaroos used floodplain and sandplain with equal intensity. Western grey kangaroos favoured floodplain and utilised woodland on both landforms relatively more than did red kangaroos. Movements of kangaroos between sandplain and floodplain paralleled changes in pasture condition. Red kangaroos responded to pasture growth, moving to sandplain immediately after rain. Western greys followed up to 3 months later, the increase in use of sandplain being weakly correlated (r = 0.70) to an increase in pasture biomass. There was no evidence of any temporal change in use of either woodland or open plain by either species.

Patterns of waterbird use in wetlands of the Paroo, A river system of inland Australia.

1992 ◽  
Vol 14 (2) ◽  
pp. 128 ◽  
Author(s):  
MT Maher ◽  
LW Braithwaite
Keyword(s):  
New South ◽  
New South Wales ◽  
River System ◽  
Aerial Survey ◽  
Flood Event ◽  
Flood Events ◽  
Inland Wetlands ◽  
South Wales ◽  
Waterbird Species ◽  
North Western

The significance of inland wetlands to Australian waterbirds has been overlooked until recently. One important area identified from regular aerial survey centres on the Paroo River in north-western New South Wales. Between April 1983 and December 1985, a period covering a major flood, waterbird populations were estimated on five wetland systems associated with the Paroo during 14 trips. Fifty- three waterbird species were recorded with the anatids, Anas gibberifrons and Malacorhynchus membranaceus, accounting for 75 per cent of total estimated populations. Most breeding events were observed in those wetlands dominated by Muehlenbeckia florulenta (lignum). Breeding accounted for shifts in waterbird populations between wetland systems. A model of waterbird usage of the five wetland systems in relation to a complete flood event is described. The importance for waterbird conservation of wetlands used for breeding and maintenance of populations between flood events, and threats to the integrity of these wetlands are discussed.

scholarly journals Advances in aerial survey methods for macropods in New South Wales and Queensland

2021 ◽  
Vol 22 (S1) ◽  
pp. 99-105 ◽  
Author(s):  
Neal Finch ◽  
Anthony Pople ◽  
Steven R. McLeod ◽  
Glenn Wallace
Keyword(s):  
New South ◽  
Survey Methods ◽  
New South Wales ◽  
Aerial Survey ◽  
South Wales

Studies on the yellow-footed rock-wallaby, Petrogale xanthopus Gray (Marsupialia : Macropodidae). 3. Distribution and management in western New South Wales

1987 ◽  
Vol 14 (2) ◽  
pp. 147 ◽  
Author(s):  
T. L. Lim ◽  
J. R. Giles
Keyword(s):  
Large Scale ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
Isolated Population ◽  
Faecal Pellets ◽  
Low Level ◽  
The Past ◽  
South Wales ◽  
North Western

Contrary to previous literature, P. xanthopus had not been recorded in western New South Wales before its existence was reported by Fox (1966). There is only one geographically isolated population of less than 250 animals in two separate colonies in the Gap and Coturaundee Ranges, where they are confined to two cliff systems and two outcrops. Their distribution is therefore more limited than first reported by Wilson et al. (1976). They were more widespread in the past, being found also in the Barrier and Bynguano Ranges. These conclusions have been reached from data collected from: (1) a large-scale low-level aerial survey and subsequent ground inspections to record this species' presence in specific locations in north-western New South Wales; (2) a systematic detailed survey of the Gap and Coturaundee Ranges to establish its pattern of habitat use from the accumulated density of faecal pellets; (3) low-level aerial surveys over these and other areas, by helicopter, to confirm the results of earlier surveys and check on reported sightings. The results of this study are being used for the management of this rare rock-wallaby in New South Wales. It is recommend that this species be re-established in the Bynguano Range.

The Abundance of Kangaroos in Suboptimal Habitats: Wheat, Intensive Pastoral, and Mallee

1982 ◽  
Vol 9 (2) ◽  
pp. 221 ◽  
Author(s):  
J Short ◽  
GC Grigg
Keyword(s):  
New South ◽  
New South Wales ◽  
Significant Proportion ◽  
South Australia ◽  
Agricultural Practices ◽  
Aerial Survey ◽  
Tree Cover ◽  
South Eastern ◽  
South Wales ◽  
Western Victoria

The densities of red and grey kangaroos in western Victoria and south-eastern South Australia were assessed by aerial survey. Much of the 133000-km2 area surveyed was farmed intensively for wheat and sheep but a significant proportion was largely unaltered mallee woodland or mallee heath. Of the total area, 85% had a density of less than one kangaroo per square kilometre, and 32% had a density of less than 0.01 km-2, values considerably lower than those reported for pastoral areas in New South Wales and South Australia. Low densities in settled areas are attributed to intensive agricultural practices, small landholdings and lack of tree cover. Low densities in mallee may be due to the lack of palatable grasses and the absence of permanent watering points.

Numbers, Distribution and Harvesting Rate of Kangaroos on the Inland Plains of New South Wlaes

1977 ◽  
Vol 4 (2) ◽  
pp. 99 ◽  
Author(s):  
G Caughley ◽  
RG Sinclair ◽  
GR Wilson
Keyword(s):  
Central Region ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
North Central Region ◽  
Survey Area ◽  
North Central ◽  
North West ◽  
The North ◽  
South Wales

The number of kangaroos on the plains of New South Wales (496000 km2) was estimated as 2 073 000 & 98 000 red kangaroos, Megaleia rufa, and 1 578 000 i- 84 000 grey kangaroos, Macropus giganteus and M. fuliginosus. The overall densities were 4.18 reds and 3.18 greys per square kilometre. Sheep outnumbered kangaroos by five to one. Red kangaroos were most numerous in the north-west of the state, greys in the north-central region. The legal harvest on the survey area in 1975 was 48 100 reds and 60 300 greys, representing 2.3% of the population of reds and 3.8% of the greys. Density is mapped for both red and grey kangaroos, and a design is offered for monitoring subsequent changes in density by aerial survey.

Distribution and Relative Abundance of Feral Goats in the Rangelands of Eastern Australia.

1993 ◽  
Vol 15 (2) ◽  
pp. 331 ◽  
Author(s):  
C Southwell ◽  
K Weaver ◽  
N Sheppard ◽  
P Morris
Keyword(s):  
Relative Abundance ◽  
New South ◽  
New South Wales ◽  
Aerial Survey ◽  
South Wales ◽  
Eastern Australia ◽  
Goat Population ◽  
Arid Rangelands ◽  
Feral Goat ◽  
Semi Arid

An aerial survey of 966,000 km2 of the arid/semi-arid rangelands of Queensland and New South Wales in the winter of 1992 indicated a minimum feral goat population of almost 1 million animals (density 0.97�0.12/km2). Observed density (f standard error) was higher in New South Wales (1.51�0.23/km2) than in Queensland (0.47�0.09/km2).

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