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Australia's most endangered snake might need burning
Date:3/24/2009

believes increased plant cover may be a problem for this endangered species due to the increased shading conferred by the vegetation.

"Prior studies have shown that broad-headed snakes require sunny, hot-rocks for shelter. Shaded rocks do not reach sufficiently high temperatures for the snakes to hunt their lizard prey effectively in the evenings," he said.

"The trend is clear as the vegetation cover increases, the snakes' available habitat decreases. Our results indicate that active management is required if the nation's most endangered snake species is to be saved from extinction," Dr Webb said.

Such management might take several forms, say the study's authors. Regular, controlled burns might open up the forest canopy and prevent tree seedling establishment on the westerly rock escarpments favoured by the reptiles. Alternatively, if controlled burns are deemed too expensive or too dangerous to implement, then foresters might clear overhanging vegetation in areas known to be important to the snakes.

Although broad-headed snakes would benefit from controlled burns, the extreme risks of bushfires in Australia must be weighed against the expected gains.

"As with all decisions in environmental management, the decision should be made on the basis of the best available information about the likely costs and benefits of the different strategies. This includes the potential collateral impacts upon other species of concern," warns Professor Shine.


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Contact: Melanie Thomson
melanie.thomson@wiley.com
44-186-547-6270
Wiley-Blackwell
Source:Eurekalert

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