A collaborative research project between the Northern Territory Government's Department of Environment and Natural Resources (DENR) and Parks Australia
has found that feral cat exclosures have a positive impact on local reptile populations.
The research published in Biological Conservation found that in plots where cats were excluded reptile abundance increased at twice the rate, compared to cat-accessible plots.
The world is changing. Some of this change is planned and desirable. But much else is an unwanted consequence of the expansion of the human species. Those unwanted impacts will affect our lives and those of our descendants.
After undergraduate majors in Geography, Environmental Science and Botany, I did my PhD on native grasslands. I was struck by how these Critically Endangered ecosystems existing right on the edge of my city were being lost without most people even knowing about them – or understanding what amazing, super diverse ecosystems they are.
What influences where birds choose to nest? About 15% of Australian birds, or 114 species, need tree hollows for breeding or shelter. The number of hollow-bearing trees is declining due to timber harvesting and development.
Fish need to move to find food, escape predators and reach suitable habitat for reproduction. Dams, weirs and culverts can create barriers that fragment habitats, isolating fish populations. An Australian innovation, however, promises to help dwindling fish populations in Australia and worldwide.
Endangered forty-spotted pardalote nestlings are falling prey to the larvae of a blood-feeding fly parasite. Researcher Fernanda Alves, reports on experiments that encourage forty-spotted pardalotes to ‘self-fumigate’ their nests by incorporating chicken feathers treated with a bird-safe insecticide.