GIS Resource CompendiumEntry ID: HYDROSPHERE_INC_GIS_RESOURCES
Abstract: Statistics for environmnental measurements, with point locations
for measurement stations, and contextual GIS data.
Available statistics include, daily and yearly averaged USGS
streamflow and ground water data , NCDC daily climatic data, and EPA
STORNET water quality information.
Data is available via CD-ROM and can be ordered through the
Hydrosphere Data Products, Inc. web site at:
Data are published in both off the shelf yearly subscriptions, or in
custom compilations. Datasets are available on a lease or purchase basis.
Other products include full time-series envirnmental data available
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Start Date: 1781-01-01Stop Date: 1998-02-28
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES LIFE HISTORY
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > EXOTIC SPECIES
ISO Topic Category
Quality Information on feral cats was gathered from December 1975 to March 1977 and from December 1978 to February 1981. Cats were shot, sexed, and weighed to the nearest 30g; females were autopsied for reproductive condition. Embryos were counted in utero and the age of each estimated according to weight in grams, on the basis of data from domestic cats. Limited mark-recapture studies using cage-traps ... were also made in the Green Gorge area during 1979. Cats were identified by coloured neck collars and/or numbered metal eartags.
Population size was estimated from monthly transect counts carried out day and night between January and October 1979. The day and night counts were done within 24 hours of one another, if weather permitted. The transect followed the coast from Green Gorge to Brothers Point (4.5 km) and then continued onto the plateau from Prion Lake to Green Gorge (5.5 km). At night a 100-W spotlight was used to sweep a path up to 350 m wide on the coast and 550 m wide on the plateau. The actual area covered was determined from a contour map of the island and by calculating distnaces to which a cat could be seen. These regions were chosen as they were regarded representative of habitats on Macquarie Island. During this year no cats were killed between Pyramid Peak and a line drawn between Bauer Bay and Sandy Bay, except on the west coast below the plateau edge. The west coast was 3km away and regarded sufficiently remote from the study areas as not to influence them.
Between 3 March and 16 September 1979, daytime observations from a convenient hill were made of an adult male orange cat at Green Gorge to map its home range and to observe its activities and those of other cats in the area. Twelve days of observation were made: six days in March, three in April, and one each for May, June and September. Home range was taken to be the area traversed by the cat for its daily activities. The area was then calculated by joining the outer data points. No correction factor was used and once-only excursions were excluded from the calculations.
Access Constraints A pdf copy of the referenced paper is available for download from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference at the provided URL when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 6,976 kb
Distribution Format: pdf
Role: TECHNICAL CONTACT
Phone: +61 3 6233 6728
Fax: +61 3 6233 3477
Email: geoffco at dpiwe.tas.gov.au
Department of Tourism, Arts and the Environment Parks and Wildlife Service 134 Macquarie Street
Province or State: Tasmania
Postal Code: 7000
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: dave.connell at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Brothers, N.P., Skira, I.J., Copson, G.R. (1985) Biology of the feral cat, Felis catus (L.), on Macquarie Island. Australian Wildlife Research 12. 425-436
Creation and Review Dates
DIF Creation Date: 2005-04-21
Last DIF Revision Date: 2010-07-28