PEOPLE had recently left food for dingoes at the same spot where two sisters from Brisbane were attacked on Fraser Island, according to conservationist Mike West.
A Queensland Parks and Wildlife Service representative said the women were jogging on the beach south of Yidney Rocks when they were confronted by two dingoes about 6.45am.
One woman received bites to both of her legs and was transferred to Hervey Bay Hospital for treatment, while the other received a bite to the calf which did not puncture the skin.
Mr West, a Fraser Island World Heritage Area Advisory Committee member who has owned a home on the island for more than 25 years, said irresponsible people were just as much to blame as the dingoes for the attack.
He said Fraser Island habituated dingoes needed to be caught and desexed, as wild dingoes usually avoided humans.
"If you're going to get bitten, it's always by these habitual dingoes," he said.
"They're always the ones who are picking up food from humans ... these people are as much to blame as the dingoes."
Mr West, who is working on a documentary about the island, said people should avoid jogging or running in dingo areas.
A Hervey Bay Hospital spokesman said the injured woman had a low-level wound and was being monitored overnight in hospital.
Rangers are now investigating the incident and have increased patrols on Fraser Island to monitor dingo activity.
A QPWS representative said camp zones between Poyungan Rocks and Eli Creek had been closed until further notice.
"In the wake of this latest incident, people considering walking or jogging on the beaches should exercise caution and stay in a group."
People on Fraser Island should keep children close, stay in a group, avoid feeding dingoes, keep camp sites clean and secure and never approach or encourage interaction.