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21 results on '"Horsup, Alan"'

7. How do you trap a shy wombat? Trialling new trap designs for northern hairy-nosed wombats (Lasiorhinus krefftii).

Author

Molyneux, Jenny, Harper, Dave, and Horsup, Alan

Subjects
FOREST reserves, NATIONAL parks & reserves
Abstract

The low trap success (2–4%) of northern hairy-nosed wombats (Lasiorhinus krefftii) has proven a considerable limiting factor to their conservation and management. This project aimed to utilise expert knowledge and experience to redesign current traps and deployment to improve trap success, reduce by-catch and required resources, and improve safety for field staff and captured fauna. A trial of several trap variations and deployment strategies was conducted at Epping Forest National Park (Scientific). Results indicated new trap design and deployment strategies contributed to improving outcomes against all the aims. Most notably, an increased trap success of 10.5% was detected, significantly improving capabilities to achieve conservation and management outcomes. The low trap success (2–4%) of northern hairy-nosed wombats (Lasiorhinus krefftii) has proven a considerable limiting factor to their conservation and management. This project utilised expert knowledge and experience to redesign current traps and deployment to improve trap success, reduce by-catch and required resources, and improve safety for field staff and captured fauna. The results show the capacity to improve monitoring capabilities for a cryptic species, to ultimately improve the ability of managers to achieve conservation outcomes. [ABSTRACT FROM AUTHOR]

Published
2022
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11. Demographic monitoring of an entire species (the northern hairy-nosed wombat, Lasiorhinus krefftii) by genetic analysis of non-invasively collected material

Author

Banks, Samuel, Hoyle, Simon D, Horsup, Alan, Sunnucks, Paul, Taylor, Andrea Carolyn, Banks, Samuel, Hoyle, Simon D, Horsup, Alan, Sunnucks, Paul, and Taylor, Andrea Carolyn

Abstract

Successful management of endangered species may be greatly facilitated by the ability to monitor population trends. The Australian northern hairy-nosed wombat (Lasiorhinus krefftii) is one of the world's most endangered mammals, but precise abundance estimation by trapping surveys has proven exceedingly difficult. A mark-recapture study was conducted in the sole remaining L. krefftii population, based on microsatellite identification of individuals and their gender from DNA in remotely collected single hairs. Population size was estimated to be 113 (95% confidence interval of 96 to 150). This suggests an increase in population size over the previous estimate of 65 (95% CI 42-186) in 1993, although the estimates did not differ significantly. There was a significant male bias in the sex ratio (2.25 males: 1 female), in agreement with recent trapping surveys. The non-invasive approach used here is vital for estimating population size and trends, and hence it is the most important recent advance in the conservation management of the northern hairy-nosed wombat.

Published
2003

20. Trends in the population of the Northern Hairy-nosed Wombat Lasiorhinus krefftii in Epping Forest National Park, Central Queensland

Author

G. Crossman, Doug, N. Johnsow, Christopher, and B. Horsup, Alan

Abstract

The Northern Hairy-nosed Wombat Lasiorhinus krefftii now survives only in Epping Forest National Park, central Queensland. The species was formerly more widespread in the Epping Forest region than at present. Its decline appears to have occurred in three distinct episodes of contraction, two of which were associated with prolonged drought. Indirect monitoring of abundance suggests that the population was stable from 1974 to 1981, when cattle were excluded from the Park, but has increased since 1983. A trapping programme between 1985 and 1989 suggests that the absolute size of the population may be about 70. The population contains approximately equal numbers of males and females; almost all females breed; and a large and apparently increasing proportion of the population consists of young animals. Further increases in density and range within Epping Forest National Park appear possible. Removal of some animals for translocation should be attempted when it is clear that such removals will not jeopardize the stability and vigour of the Epping Forest population.

Published
1995
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21. The short-term effect of radio-packages on a free-ranging large herbivore, the northern hairy-nosed wombat

Author

Woolnough, Andrew P., Johnson, Christopher N., and Horsup, Alan B.

Abstract

The short-term effect of radio-packages on the activity of the northern hairy-nosed wombat, Lasiorhinus krefftii, was investigated using activity data-loggers. Adjustment to the radio-package occurred between 10 and 18 days following capture and fitting of the radio-package. Following the adjustment period, activity levels were some 84–97% less than that of the initial activity level after the attachment of the radio-package. We believe that the adjustment period needs to be considered in studies involving the attachment of radio- packages.

Published
1998

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