A new threat to Fraser Island

Volunteers are trying to control the spread of another noxious weed on World Heritage listed Fraser Island.

Under the Fraser Island Weed Management project, volunteers have been working near the township of Happy Valley to control the invasive species Crab’s eye vine (Abrus precatorius subsp. Africanus). Crab’s eye comes from Africa and grows readily in coastal environments. The red seeds are highly toxic if eaten.

Mr Jason Harvey, Weeds Management Officer at the University of the Sunshine Coast, said that the project has proven quite successful in engaging the community of the island.

“With a small but dedicated population who have a strong interest in the island’s management, we are well placed to recognise and monitor new infestations,” he said.

“Bree Jashin of Happy Valley has been monitoring the spread of this plant since first determining that it was not the native species of Abrus that occurs through North Queensland. “

“The information and the support she has given to volunteer projects in Happy Valley has helped prevent it from spreading to other areas on the island.”

Crab’s eye vine is highly invasive, growing readily in the coastal sandy dunes of Fraser Island and shows a great capacity to alter habitat. It is also opportunistic, responding very quickly to disturbances such as fire often out competing native species in the critical period after a burn.

Mr Harvey said that community members such as Bree could frequently monitor the success of control operations and carry out small scale follow up control.

“I believe that supporting volunteer operations by contributing accommodation and providing information on infestations in Happy Valley is one of the most satisfying successes of the project to date. When people really care, great things can be achieved."

The invasive Crab’s eye vine

Photos: Sheldon Navie

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