Two recent articles suggest that bilbies can persist under low predation levels from feral cats, but the ‘threshold question’ remains open. Is there a threshold cat density above which bilbies can’t survive – and if so, what is it; and does it vary between locations? For more information, see Moseby et, al., (2018) in Austral […]
The TGB Osborn Vegetation Reserve at Koonamore is the longest-running vegetation monitoring site of its kind in Australia – and site data is now readily available to researchers. The site has not been grazed by sheep for over 50 years, and has been rabbit-free for over 40 yrs – so there is a wealth of […]
Australia’s feral rabbits fall into three primary genetic lineages, with three other highly localised ones, according to a recently published research paper. The results suggest the rabbits originated from different introductions across the country, rather than a single site. The research, assisted in part by funding from the Foundation for Rabbit Free Australia, examined the […]
CSIRO funded researchers have discovered why young rabbits are immune to RHDV1, but not RHDV2. It seems that young rabbits have a naturally heightened immune system, but RHDV2 is able to shut down the elevated immune state – whereas RHDV1 is not. For more information, see the Research Updates in Feral Flyer Issue 350 (the […]
Ecological modellers have shown how reducing wild rabbit numbers helps maintain small native mammals. Benefits for small mammals occur when 30-40% of rabbits are removed through a mix of biological and physical controls. Higher rates of rabbit removal can lead to a decline in small mammals in the short term, but with subsequent long term […]
The Martu people of the western deserts are involved in developing a bilby monitoring program, combining traditional knowledge and scientific techniques. Robust monitoring is critical to the evaluation of different management strategies, such as burning practices and the control of cats, foxes and rabbits. For more information on the project, see the Threatened Species Recovery […]
Combing 17 years of field data on wild rabbit mortality and a model of rabbit populations has provided researchers with insight to the interactions between rabbit diseases – concluding that rabbits that have survived myxomatosis are more vulnerable to RHDV than those not previously infected by myxo. The researchers suggest several factors that may influence […]
Gene drive technology (a way to spread a specific gene through a species) may have potential for feral animal control (especially in isolated pest populations), but non-technical questions are also being raised. For more information, see the ABC News article – ‘Feral science or feral solution‘.
Exposure of rabbits to the myxoma virus renders them less likely to survive RHDV, according to a soon to be published research paper. The research, led by Louise Barnett and assisted by RFA, shows that a combination of biological controls can have more impact than the sum of individual controls on their own. For more […]
Following the arrival of RHDV2, European wild rabbit numbers dropped to around 20% of the average over the preceding ten years, according to recently published survey data. The results come from two long-term monitoring sites in South Australia, in the Flinders Ranges and at Turretfield. If the two sites are representative of other areas and […]