Nature Doesn’t Do Monocultures

If Australia had a bird that embodied our national identity, it could belong to the Purple-crowned Fairy-wren. Tiny. Bold. Confident. Sporting a spectacular splash of purple that wouldn’t look out of place at an Australian music festival or on a TAFE or university campus. It’s all sass. And thank goodness it doesn’t believe Australia should be monochrome. Nature’s always known that diversity is something to celebrate.

Perhaps I’m a little biased. I first met Purple-crowned Fairy-wrens in 2017 while visiting Australian Wildlife Conservancy’s Mornington Wildlife Sanctuary in the Kimberley. Seeing those tiny flashes of purple darting through the riverside pandanus is something I’ll never forget.

But behind all that attitude lies one of northern Australia’s most vulnerable little birds.

Unlike the more familiar Superb Fairy-wren, the Purple-crowned Fairy-wren lives almost exclusively among pandanus trees along healthy, well-vegetated riverbanks in northern Australia. It depends on dense native vegetation for shelter, nesting and protection. When those ribbons of life along our rivers disappear, so does this remarkable little bird.

In many ways, it’s become a symbol of the challenges facing Australia’s biodiversity.

Its future is threatened by habitat degradation, cattle and feral herbivores trampling fragile riverbanks, altered fire regimes, and - of course - the growing impacts of climate change through hotter temperatures, changing rainfall and more extreme floods.

None of these threats acts alone. They all reinforce one another.

Protecting the Purple-crowned Fairy-wren isn’t simply about saving one beautiful bird. It’s about restoring healthy rivers, healthy landscapes and healthy Country that support thousands of other species - including us. Luckily they’re doing that at Mornington Sanctuary.

One of the great lessons of ecology is that diversity builds resilience. Monocultures may seem neat, but they’re fragile. Healthy Country needs countless species, each contributing something unique. Remove that diversity and, sooner or later, everything becomes poorer.

Perhaps that’s why I love this little bird so much. It’s colourful. It’s full of personality. It refuses to blend into the background. To be honest, some of our politicians who seem uncomfortable with diversity could learn a thing or two from the Purple-crowned Fairy-wren. That flash of purple reminds us that nature, and Australia, are at their strongest when diversity thrives.

If you have some spare cash, you can donate to Australian Wildlife Conservancy to help it protect the Purple-crowned Fairy-wren.

Photo from Australian Wildlife Conservancy.