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Articles on Biodiversity

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Western Australia’s State Barrier Fence is designed to keep emus out of farms - but at what cost? Graeme Chapman.

All cost, little benefit: WA’s barrier fence is bad news for biodiversity

Every five or ten years Western Australia’s emus undertake mass migrations in search of food. On the way they encounter the 1,170km State Barrier Fence, which seeks to stop dingos, emus and kangaroos entering…

Frogs beat disease by croaking together

Ponds with more types of frogs are more resistant to infection, research from University of Colorado has found. The study…
The new study suggests extinction driven by climate instability may be just as important as evolution as a driver of plant biodiversity. http://www.flickr.com/photos/ecologyweb

Ice Age flora extinction reveals fresh plant biodiversity clues

Ice Ages caused a mass extinction of plants in south-eastern Australia around a million years ago, according to a new study that presents a fresh take on how extinction shapes biodiversity. Scientists…
We’re happy to kill individual creatures in large numbers - what’s stopping us wiping out the biosphere? Darren Harmon

Is an ethic of biodiversity enough?

The environmental crisis has never loomed so large nor been so extensively debated as in the last few years. But at the same time we have never heard less about environmental ethics - the bio-inclusive…
Four major hydroelectric projects are planned for the upper Yangtze River valley. Steb Fisher

Birds, dams and people: biodiversity in China

The 2012 China Ecological Footprint Report has highlighted the cost to biodiversity of China’s rapid economic development. Biodiversity in China is under pressure because of loss of habitat. In our study…
There are roughly 5 million species on earth. Most are insects. Roger Smith

We can name all of Earth’s species, but we may have to hurry

There has been enormous uncertainty amongst the scientific community on just how many species there are on Earth and how rapidly we are losing them through extinction. Given that taxonomists have described…
Spotted handfish. Bruce Miller/AAP

Australia’s unusual species

Australia has some of the world’s most unusual biological specimens. We have plants that look like animals, animals that look like plants, a fish that looks like a frog, a mole that does not dig tunnels…
An early dry season fire in Kakadu National Park – are these fires burning up our mammals? Clay Trauernicht

Scientists and national park managers are failing northern Australia’s vanishing mammals

Conservationists should take heart that Australia is finally waking up to the biodiversity crisis in Australia’s north. It is an urgent problem: right now, a diverse assortment of our small mammals – bandicoots…
A high level of coral cover doesn’t always mean a high level of species diversity; and diversity is important. Maria Beger

A lot of coral doesn’t always mean high biodiversity

The health and productivity of coral reefs is rapidly declining. Hard corals are the principal builders of coral reef ecosystems; however they are struggling to survive due to pollution, catchment clearing…
National parks’ role as a refuge from direct human intervention will only become more important in future. dracopylla/Flickr

Biodiversity crisis demands bolder thinking than bagging national parks

Tim Flannery’s recent Quarterly Essay, After the Future, questions whether Australian national parks will become “marsupial ghost towns” despite the tens of millions of dollars governments spend on them…
Without help, parks like Kakadu could become marsupial ghost towns. Territory Expeditions

The future for biodiversity conservation isn’t more national parks

Today we begin a series on Australia’s endangered species and how best to conserve them. The series will run each Thursday, and begins with this excerpt from Tim Flannery’s Quarterly Essay, After the Future…
Invertebrates can seem alien and “other”, but the world can’t get by without them. Thomas Shahan

Ignoring invertebrate conservation is simply spineless

Invertebrates are all around us – crawling, squirming and buzzing about their business. From forests canopies to ocean depths, they form about 80% of the known species on Earth. By virtue of their sheer…
There are sound ecological reasons for introducing grazing animals to some wild areas, but this shouldn’t act as a cover for non-scientific grazing. Richard Lehnert

Can livestock grazing benefit biodiversity?

Grazing by livestock (mainly sheep and cattle) has irreversibly degraded many natural ecosystems in Australia. Consequently, stock are usually removed from public land when new conservation reserves are…
Ants might be a pain … but they play a vital role in maintaining the variety of plant life we see around us. mraandrews

In defence of the humble ant, champion of biodiversity

You’d be hard pressed to find many people who hold ants in high regard. That might be due to their destructive behaviour towards lawns, their ability to infest your house in no time at all, or a willingness…
It appears that biodiversity increases during warmer periods in Earth’s history. Dom Dada/Flickr

Competition: warming and its effect on biodiversity

In 2008, I and my colleagues published a study which appeared to confirm that current global warming could cause large losses of species and a loss of biodiversity. Four years later and a new approach…

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