Residents have joined a fight to stop the Queensland government from completing a controversial dingo fence on world heritage listed Fraser Island.The Queensland government began building the $750,000 fences around the Eurong and Happy Valley townships on the island earlier this year, following a series of attacks by dingoes, including the fatal mauling of nine-year-old Clinton Gage in April 2001.Sustainability Minister Andrew MacNamara today responded to a petition from 325 people protesting against the fence at the Happy Valley township.The protesters said the fence would damage the sensitive environment which is home to the vulnerable black-breasted button-quail and the wallum sedge frog."We object to this unnecessary, unsightly, environmentally destructive and costly asset, which will require continued costly cyclic maintenance," the petition said."With the low number of visitors to Happy Valley and infrequent dingo sightings within Happy Valley, the cost per dog is not justifiable."In a letter of response, Mr MacNamara said he understood residents were not happy with the fence but education programs to change residents' and visitors' interaction with dingoes had not worked."Persistent, illegal and reckless feeding of dingoes in townships creates habituated and aggressive animals that pose a serious threat to humans, particularly children," he wrote.He said the risk of dangerous dingo-human interactions had been reduced where fences had been installed elsewhere on the island.Mr MacNamara's response came after Fraser Island's Butchulla people withdrew an emergency application to the federal government to stop the fence.Their barrister George Villaflor said the federal government had shown "incompetence" in dealing with the application and the Butchulla people would instead pursue whether construction of the fences had breached native title and destroyed culturally significant areas. AAP