As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Tuesday, 3 November 2015

Invasive birds spreading avian malaria in eastern Australia


Indian Mynas threaten bird life in South East Queensland region

Date:October 20, 2015
Source:Griffith University

An invasive bird species is carrying, and potentially spreading, a high prevalence of avian malaria throughout its range in eastern Australia, a Griffith University PhD candidate has uncovered.

Nicholas Clark found that up to 40% of Indian Mynas in the South East Queensland region can carry malaria parasites. While they can't infect humans, the parasites pose a significant threat to native wildlife.

He said that because Mynas carry some malaria strains exotic to Australia, the spread of the Myna could put our native birds such as parrots, magpies and butcher birds at risk.

His discovery, which formed his thesis project while studying with the School of Environment, was published online on 19 October in the International Journal for Parasitology.

"Malaria parasites are common in Australian birds but through the use of genetic techniques I have discovered they are more diverse than originally thought," the former Gold Coast student, who now works for the Department of Agriculture and Fisheries said.

Nicholas said that some of the malaria parasites found in Australia were probably introduced from other countries and are now being spread by the Myna, which was brought to Australia in the 1800s to control insect pests on crops. But today they are considered an aggressive pest that has the potential to cause significant negative impacts on biodiversity.

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