Domestic pigs were brought to Australia as a food source for European settlers and some of those pigs that escaped or were free-roaming established feral colonies outside of human settlements. It is estimated that up to 23.5 million feral pigs occupy nearly half of Australia and feral pigs are found in all states and territories. Approximately 3-6 million feral pigs live in Queensland placing pressure on the natural environment.
Feral pigs require access to water, food, and cover and these requirements are highly predictive of their distribution and abundance. Because they require readily available access to water, they are typically associated with wetlands and waterways and not usually found in the dry interior of the country. In locations where resources are readily available, feral pigs may form permanent populations; feral pigs will relocate when food opportunities are low and their demanding energy requirements are not being met. Additionally, despite the high mortality of piglets and juveniles, high fertility means that feral pigs can rapidly increase their population each year.
Last updated: 10 May 2021
This page should be cited as:
Department of Environment and Science, Queensland (2021) Feral pigs, WetlandInfo website, accessed 29 September 2021. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/ecology/components/fauna/wetland-pests/feral-pigs.html