The Effect on Wild Dogs, Canis-F-Familiaris, of 1080-Poisoning Campaigns in Kosciusko-National-Park, Nsw

1986 ◽  
Vol 13 (4) ◽  
pp. 535 ◽  
Author(s):  
JC Mcilroy ◽  
RJ Cooper ◽  
EJ Gifford ◽  
BF Green ◽  
KW Newgrain
Keyword(s):  
National Park ◽  
Home Ranges ◽  
Rapid Loss ◽  
Grazing Land ◽  
Control Zone ◽  
South Eastern ◽  
Eastern Australia ◽  
Radio Transmitters ◽  
Wild Dogs ◽  
South Eastern Australia

Nine wild dogs, Canis f. familiaris, radio-tracked over periods of 28-61 days in Kosciusko National Park, N.S.W., occupied home ranges of 220-5420 ha (mean 2193 ha). These home ranges were similar in size to those observed for dingoes, C. f. dingo, in other areas of south-eastern Australia. The maximum distance that any of the nine dogs moved between successive daily locations was 11.2 km. On the basis of this information and that obtained by others, we suggest that the control of wild dogs on Crown Land in south-eastern Australia should be confined to those areas adjacent to private grazing land. Furthermore, a control zone 12-20 km wide should be adequate. Two successive trail-baiting campaigns with 1080 poison in March and April 1982 killed only two (22%) of the nine wild dogs carrying radio transmitters. Traps, in comparison, caught 15 out of 27 (56%) of the dogs known to be in the area. The main factors which reduced the success of the poisoning campaign were the rapid loss of toxicity of the baits after their distribution, the rapid rate at which they were removed by other animals, particularly foxes Vulpes vulpes and birds, and the dogs' apparent preference for natural prey.

scholarly journals Interspecific and Geographic Variation in the Diets of Sympatric Carnivores: Dingoes/Wild Dogs and Red Foxes in South-Eastern Australia

PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0120975 ◽  
Author(s):  
Naomi E. Davis ◽  
David M. Forsyth ◽  
Barbara Triggs ◽  
Charlie Pascoe ◽  
Joe Benshemesh ◽  
...  
Keyword(s):  
Geographic Variation ◽  
Red Foxes ◽  
South Eastern ◽  
Eastern Australia ◽  
Sympatric Carnivores ◽  
Wild Dogs ◽  
South Eastern Australia

The Conservation Genetics of Eucalyptus paliformis L. Johnson et Blaxell and E. parvifolia Cambage, Two Rare Species From South-Eastern Australia

1990 ◽  
Vol 38 (1) ◽  
pp. 79 ◽  
Author(s):  
SM Prober ◽  
C Tompkins ◽  
GF Moran ◽  
JC Bell
Keyword(s):  
Genetic Diversity ◽  
Narrow Band ◽  
Large Population ◽  
Continuous Distribution ◽  
Allozyme Diversity ◽  
Grazing Land ◽  
South Eastern ◽  
Eastern Australia ◽  
Population Sizes ◽  
South Eastern Australia

Eucalyptus paliformis is restricted to a small, isolated plateau on the eastern escarpment of south-eastern Australia. Eucalyptus parvifolia populations are scattered discontinuously in a narrow band of nearby grazing land that has been substantially cleared over the last 100 years. Allozyme diversity was examined in six of the seven known populations of E. paliformis and in all the eight known populations of E. parvifolia to help assess the potential for the survival of these species under current conditions of management. Levels of genetic diversity in E. paliformis are comparable to levels in other eucalypts of restricted distribution and, in conjunction with its large population sizes, are likely to be adequate for its survival. The greatest threat to E. paliformis is its localised distribution, which renders it susceptible to extinction by disturbance. By contrast, the levels and distribution of diversity in E. parvifolia, and estimates of migration between populations, suggest that the high variability measured in this species may be a consequence of a once more continuous distribution. The recent dissection of its range through clearing is likely to lead to a decline in levels of genetic diversity in E. parvifolia, which, when combined with destruction of the habitat where it can best outcompete other eucalypts, suggests its survival is threatened.

Home range of male lace monitors, Varanus varius (Reptilia : Varanidae), in south-eastern Australia

1993 ◽  
Vol 20 (3) ◽  
pp. 303 ◽  
Author(s):  
BW Weavers
Keyword(s):  
Home Range ◽  
Sample Size ◽  
Convex Polygon ◽  
Small Sample Size ◽  
Small Sample ◽  
Home Ranges ◽  
South Eastern ◽  
Eastern Australia ◽  
Realistic Description ◽  
South Eastern Australia

Travelling paths and overnight roosts of the lace monitor, Varanus varius, were recorded by radiotracking during periods of up to 19 months in lowland open forest of south-eastern Australia. Home ranges were calculated by four methods: convex polygon (without correction for small sample size), convex polygon (with correction for small sample size), and two 95% probability ellipses. From field observations, I conclude that the convex polygon method without correction for sample size provides the most realistic description of the space used by V. varius. By this method, I calculated a mean (+/- s.d.) home range of 65 +/- 34 ha for 13 male V. varius (mean mass 5.1kg) that were radio-tracked for 2-19 months.

scholarly journals Aerial baiting and wild dog mortality in south-eastern Australia

2020 ◽  
Vol 47 (2) ◽  
pp. 99 ◽  
Author(s):  
G. Ballard ◽  
P. J. S. Fleming ◽  
P. D. Meek ◽  
S. Doak
Keyword(s):  
South Eastern ◽  
Mesic Forest ◽  
Veterinary Medicines ◽  
South Wales ◽  
Eastern Australia ◽  
Lethal Management ◽  
Vertebrate Pests ◽  
Wild Dog ◽  
Wild Dogs ◽  
South Eastern Australia

Abstract ContextWild dogs, including dingoes and dingo cross-breeds, are vertebrate pests when they cause financial losses and emotional costs by harming livestock or pets, threaten human safety or endanger native fauna. Tools for lethal management of these animals currently include aerial baiting with poisoned baits. In New South Wales (NSW), Australia, aerial baiting was previously permitted at a rate of 40 baits km−1 but a maximum rate of 10 baits km−1 was subsequently prescribed by the Australian Pesticides and Veterinary Medicines Authority. The efficacy of these baiting rates has not been quantified in eastern Australia, undermining the value of the policy and rendering adaptive management efforts difficult, at best. AimTo quantify the mortality rate of wild dogs exposed to aerial baiting at historic and currently approved rates, i.e. 40 baits per kilometre and 10 baits per kilometre, respectively. MethodsWild dog mortality rates were measured at sites in mesic north-eastern NSW, where aerial baiting was applied to control wild dogs and contrasted with sites and individuals where no baiting was undertaken. In total, 132 wild dogs were trapped and fitted with GPS-VHF telemetry collars before annual aerial baiting programs. Collars were used to locate animals after aerial baiting and to determine the fates of individuals. Key results90.6% of collared wild dogs exposed to aerial baiting at 40 baits km−1 died, whereas only 55.3% of those exposed to 10 baits km−1 died (Welsh’s t=4.478, P=0.004, v=6.95). All wild dogs that were not exposed to toxic baits survived during the same periods. ConclusionManagers using aerial baiting to maximise wild dog mortality in mesic south-eastern Australia should use 40 baits km−1 rather than 10 baits km−1. ImplicationsWild dog population reduction for mitigation of livestock and faunal predation requires the application of efficacious control. The currently prescribed maximum aerial baiting rate of 10 baits km−1 is inadequate for controlling wild dog populations in mesic forest environments in NSW.

scholarly journals Correction: Interspecific and Geographic Variation in the Diets of Sympatric Carnivores: Dingoes/Wild Dogs and Red Foxes in South-Eastern Australia

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0130241 ◽  
Author(s):  
Naomi E. Davis ◽  
David M. Forsyth ◽  
Barbara Triggs ◽  
Charlie Pascoe ◽  
Joe Benshemesh ◽  
...  
Keyword(s):  
Geographic Variation ◽  
Red Foxes ◽  
South Eastern ◽  
Eastern Australia ◽  
Sympatric Carnivores ◽  
Wild Dogs ◽  
South Eastern Australia

Effects of large-scale high-severity fire on occupancy and abundances of an invasive large mammal in south-eastern Australia

2012 ◽  
Vol 39 (7) ◽  
pp. 555 ◽  
Author(s):  
David M. Forsyth ◽  
Andrew M. Gormley ◽  
Luke Woodford ◽  
Tony Fitzgerald
Keyword(s):  
National Park ◽  
Large Scale ◽  
Survey Methods ◽  
Large Mammal ◽  
South Eastern ◽  
High Severity ◽  
Eastern Australia ◽  
Pellet Counts ◽  
Sambar Deer ◽  
South Eastern Australia

Context Despite large mammals being an important component of many ecosystems, there is little information on the impacts of fire on large mammal populations. Aims We evaluated the effects of the large-scale high-severity ‘Black Saturday’ fires of 7 February 2009 on occupancy and abundances of an invasive large mammal, the sambar deer (Cervus unicolor), in south-eastern Australia. Methods The effects of the Black Saturday fires on the abundance of sambar deer were assessed using repeated annual counts of faecal pellets during 2007–11 in Kinglake National Park, which was burnt, and in Mount Buffalo National Park, which was not burnt. Pre-fire occupancy was modelled from data collected at 80 4-km2 cells using three survey methods. The same survey methods were used at 15 burnt (n = 9 sampled pre-fire) and 15 unburnt (n = 5 sampled pre-fire) cells 16–24 months after Black Saturday. Because multiple surveys were performed in each cell, we used a Bayesian state–space site-occupancy model to partition changes in the probability of occupancy from changes in the probability of detection. Key results Counts of sambar deer pellets increased linearly during 2007–11 in the unburnt Mount Buffalo National Park. Pellet counts also increased linearly in Kinglake National Park from 2007 to 2008, and then decreased (to zero) following Black Saturday; pellet counts increased again in 2010 and 2011. Sambar deer occupancy was weakly reduced (from 0.99 to 0.88) in burnt cells 16–24 months after Black Saturday, but was little changed in unburnt cells (from 0.99 to 0.98). Conclusions We conclude that the abundance of sambar deer was substantially reduced by the large-scale high-severity Black Saturday fires, but that most burnt habitat was reoccupied 16–24 months later. Implications There is concern about the negative impacts of invasive sambar deer on native biodiversity, particularly immediately post-fire. Our study suggests that it takes at least 8 months before sambar deer recolonise areas burnt by a large-scale high-severity fire; however, a risk-averse approach would be to act (e.g. by erecting fences or culling) sooner than that.

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