Evaluation of a Warfarin Poisoning Programme for Feral Pigs (Sus Scrofa).

1990 ◽  
Vol 17 (5) ◽  
pp. 525 ◽  
Author(s):  
G Saunders ◽  
B Kay ◽  
B Parker
Keyword(s):  
Sus Scrofa ◽  
Total Population ◽  
Agricultural Land ◽  
Control Programme ◽  
Feral Pigs ◽  
Programme Cost ◽  
Eastern Australia ◽  
Initial Control

A warfarin poisoning programme to control feral pigs was evaluated on agricultural land in eastern Australia between July and September, 1987. The estimated total population before the poisoning programme was 189 pigs within the 94.4 km2 study area. Poisoned and free-fed bait was offered initially at 69 sites and over a period of 57 days. Only two pregnant sows were believed to have survived the programme which was equivalent to a 98.9% reduction. As a result of breeding and re-invasion a further 38 pigs were removed in the 12 months after the control programme. Cost of initial control was $A39 per pig while cost of maintenance control was $A47 per pig.

Seasonal Patterns in Bait Consumption by Feral Pigs (Sus Scrofa) in the Hill Country of South-Eastern Australia.

1993 ◽  
Vol 20 (5) ◽  
pp. 637 ◽  
Author(s):  
JC Mcilroy ◽  
EJ Gifford ◽  
RI Forrester
Keyword(s):  
Sus Scrofa ◽  
National Park ◽  
Seasonal Patterns ◽  
Australian Capital Territory ◽  
Feral Pigs ◽  
Hill Country ◽  
Eastern Australia ◽  
Main Factors ◽  
Autumn And Winter ◽  
The Hill

Both fermenting wheat and bran/pollard pellets were readily accepted as bait throughout the year by feral pigs (Sus scrofa) in Namadgi National Park, Australian Capital Territory. Birds mainly ate wheat bait, particularly during winter. Other animals occasionally fed on both types of bait, mainly during autumn and winter. Covering baits with forest-floor litter did not significantly affect their discovery and consumption by pigs or by other animals. The proximity of the pigs to the bait line and their appetite for bait appeared to be the main factors responsible for seasonal differences in bait consumption. Trail-baiting campaigns against pigs in similar hill country areas are likely to be more effective during late autumn than other seasons because more pigs are likely to be close to the trails then and more quickly find and eat greater quantities of bait.

A study of dung decay and plot size for surveying feral pigs using dung counts

1998 ◽  
Vol 25 (3) ◽  
pp. 255 ◽  
Author(s):  
Jim Hone ◽  
Warren Martin
Keyword(s):  
Survival Rate ◽  
Correlation Analysis ◽  
Sus Scrofa ◽  
Partial Correlation ◽  
Partial Correlation Analysis ◽  
Feral Pigs ◽  
South Eastern ◽  
Plot Size ◽  
Eastern Australia ◽  
Survey Accuracy

The effects of dung decay and plot size on counts of dung pellets of feral pigs (Sus scrofa) were investigated in south-eastern Australia. Greater understanding of both could potentially improve survey accuracy and field interpretation of dung counts by managers. Dung pellets persisted for up to 16 months, with over 50% disappearance within 2–5 months, depending on season. The long persistence suggests the need for caution in infering recent presence of feral pigs from the presence of intact pig dung. Partial correlation analysis showed the survival rate of pellets during the first month to be significantly negatively correlated with measures of temperature and rainfall in the month. There was a significant (P < 0.005) interaction of plot size, over the range 5–20 m2, and month on the average number of pellets per square metre per month, and a significant (P < 0.01) effect of year on average counts. The largest plot size always detected at least one dung pellet but smaller plots did not.

Attractiveness of a novel omnivore bait, PIGOUT®, to feral pigs (Sus scrofa) and assessment of risks of bait uptake by non-target species

2006 ◽  
Vol 33 (8) ◽  
pp. 651 ◽  
Author(s):  
Brendan D. Cowled ◽  
Steven J. Lapidge ◽  
Michelle Smith ◽  
Linton Staples
Keyword(s):  
Sus Scrofa ◽  
Field Studies ◽  
Sex Bias ◽  
Small Animals ◽  
Elevated Blood ◽  
Target Specificity ◽  
Target Species ◽  
Fresh Meat ◽  
Feral Pigs ◽  
Eastern Australia

Following a bait-preference pilot study on captive feral pigs, a series of field studies assessed the attractiveness and target-specificity of a prototype manufactured feral pig bait (PIGOUT®). Two promising test baits and fresh meat reference baits were biomarked with iophenoxic acid and aerially distributed in 100-km2 blocks of land infested with feral pigs in western Queensland to assess field uptake and target-specificity without prefeeding. Uptake was assessed by measuring blood iodine levels in aerially shot feral pigs. In all, 80% of feral pigs sampled in a non-toxic PIGOUT®-baited area had significantly elevated blood iodine, compared with 52% of sampled feral pigs in a meat-baited area (although slightly different baiting strategies were employed). No age or sex bias was evident in PIGOUT®-consuming feral pigs. No monitored manufactured baits were consumed by non-target species in 500 bait-nights. Attractiveness and target-specificity trials of ground-laid, unfenced PIGOUT® baits compared with reference baits were subsequently undertaken in several regions of eastern Australia. Results showed that PIGOUT® was consumed readily by feral pigs at all sites, and that it offered significant improvement in target specificity when compared with unfenced wheat or meat baits. However, the baits were consumed by small numbers of macropods, birds and possums. Available evidence indicates that the target-specificity of PIGOUT® bait is highest in the rangelands, reducing slightly in temperate areas and subalpine forests, where abundance of small animals is higher.

Are oestrous feral pigs, Sus scrofa, useful as trapping lures?

2005 ◽  
Vol 32 (7) ◽  
pp. 605 ◽  
Author(s):  
J. C. McIlroy ◽  
E. J. Gifford
Keyword(s):  
Sus Scrofa ◽  
National Park ◽  
Pilot Trial ◽  
Control Program ◽  
Cost Effective ◽  
General Technique ◽  
Feral Pigs

Eight feral pigs (two boars, four sows and two piglets) were caught in traps using oestrous sows as lures during a control program on a remnant pig population in part of Namadgi National Park during spring, 1990. The program was mostly based on aerial baiting with warfarin. No pigs were caught in traps containing anoestrous sows or in traps containing bait only. Seven unmarked pigs (caught seven days after the cessation of baiting) did not appear to have eaten any warfarin bait. In an earlier pilot trial, two boars were caught at a trap containing an oestrous sow, one of these again in a trap baited only with fermented grain, but no pigs were caught at a trap containing an anoestrous sow. Although not cost-effective as a general technique, this method could be useful in specific circumstances, such as eradication campaigns on islands, if the last few pigs are, or have become bait shy, or are impossible to cull by other methods.

scholarly journals Relationships between soil macroinvertebrates and nonnative feral pigs (Sus scrofa) in Hawaiian tropical montane wet forests

2019 ◽  
Vol 22 (2) ◽  
pp. 577-586 ◽  
Author(s):  
Nathaniel H. Wehr ◽  
Creighton M. Litton ◽  
Noa K. Lincoln ◽  
Steven C. Hess
Keyword(s):  
Sus Scrofa ◽  
Feral Pigs ◽  
Soil Macroinvertebrates ◽  
Wet Forests

Epigeic invertebrates of pig‐damaged, exposed wetland sediments are rooted: An ecological response to feral pigs ( Sus scrofa )

2020 ◽  
Vol 30 (12) ◽  
pp. 2207-2220
Author(s):  
Jonathan C. Marshall ◽  
Joanna J. Blessing ◽  
Sara E. Clifford ◽  
Peter M. Negus ◽  
Alisha L. Steward
Keyword(s):  
Sus Scrofa ◽  
Feral Pigs ◽  
Ecological Response

Multiplex Serology for Common Viral Infections in Feral Pigs (Sus scrofa) in Hawaii between 2007 and 2010

2015 ◽  
Vol 51 (1) ◽  
pp. 239-243 ◽  
Author(s):  
Rachel J. Stephenson ◽  
Benjamin R. Trible ◽  
Yu Wang ◽  
Maureen A. Kerrigan ◽  
Samuel M. Goldstein ◽  
...  
Keyword(s):  
Sus Scrofa ◽  
Viral Infections ◽  
Feral Pigs ◽  
Multiplex Serology

scholarly journals Niche Partitioning Among White-Lipped Peccaries (Tayassu pecari), Collared Peccaries (Pecari tajacu), and Feral Pigs (Sus Scrofa)

2009 ◽  
Vol 90 (1) ◽  
pp. 119-128 ◽  
Author(s):  
Arnaud Leonard Jean Desbiez ◽  
Sandra Aparecida Santos ◽  
Alexine Keuroghlian ◽  
Richard Ernest Bodmer
Keyword(s):  
Sus Scrofa ◽  
Niche Partitioning ◽  
Feral Pigs ◽  
Tayassu Pecari ◽  
Pecari Tajacu

Effectiveness of a Warfarin-Poisoning Campaign Against Feral Pigs, Sus Scrofa, in Namadgi National Park, A.c.t.

1989 ◽  
Vol 16 (2) ◽  
pp. 195 ◽  
Author(s):  
JC Mcilroy ◽  
M Braysher ◽  
GA Saunders
Keyword(s):  
Population Density ◽  
Sus Scrofa ◽  
National Park ◽  
Home Ranges ◽  
Feral Pigs ◽  
Radio Transmitters

The aim of this study was to develop better techniques for controlling feral pigs, Sus scrofa, in the event of an outbreak of an exotic disease than the use of 1080. Trail-baiting with warfarin-treated wheat killed 30 of 32 feral pigs carrying radio transmitters in Namadgi National Park, A.C.T., in May 1986. The casualties took 9.7 � 0.4 (mean � s.e.) days to die (range 6-14) and all died within 2.06 km of the bait trail. The two survivors (both males) were radio-located within 339 m of the poison trails several times, but then moved 5.1 and 1.5 km, respectively, out of the trial area. Home ranges averaged 4.7 � 0.6 km2 (range 0.7-22.6) and the population density was approximately 2 km-2. The pigs' mobility did not alter as death approached. They moved equal distances during the day and the night. Differences in mobility between the sexes were generally minor.

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