A study of changing rainfall and bushfire patterns has found - in addition to a likely decrease in cover of the dominant plant spinifex - feral animals pose a major threat to seed-eating rodents in central Australia.
Predators have contributed to about 60 percent of the world's bird, mammal and reptile extinctions.
Scientists at the University of Sydney have analysed up to 22 years of long-term monitoring data on plants and animals in central Australia to project how changing rainfall and wildfire patterns, because of climate change, will influence desert wildlife.
The research from the University of Sydney’s School of Life and Environmental Sciences, found while vegetation cover may decline because of climate change, the strongest negative effect on prey populations in this desert system is suppression from introduced predators.
The findings are being published in the Royal Society’s journal Open Science.
Some estimates have suggested that up to one in six species are at risk from climate change. Predators can take advantage of more open habitats for hunting, which puts more pressure on wildlife.
Lead author Dr Aaron Greenville said the model suggested that if removing introduced cats and foxes, the rodent population could increase by almost one in 10 in the study area within the Simpson Desert. “The dingo plays a complex positive role for wildlife in arid Australia,” added Dr Greenville.
The researchers, Dr Aaron Greenville, Professor Glenda Wardle and Professor Chris Dickman, in addition to working in the Faculty of Science, are affiliated with the Desert Ecology Research Group and the Terrestrial Ecosystem Research Network in Australia.
The Australian Cancer Research Foundation (ACRF) Image X Institute, lead by Professor Paul Keall, will revolutionise medical imaging, transform targeted radiotherapy and enable global access to radiotherapy.
Crop mapping plans have taken a back seat to this ‘agwork’ to focus attention on the Sydney Institute of Agriculture's key message as part of the inaugural National Agriculture Day, which is focussed on all things food.
University of Sydney Professor of Computer Science Dacheng Tao has been named a Fellow of the American Association for the Advancement of Science (AAAS), one of the highest honours in the field.