biodiversity loss - Notes from Pig City

Flight Lines

Environment / March 22, 2021 / 5 minutes of reading

Nearly 20 years ago, in pursuit of a different sort of life, I spent six months commuting between Brisbane and Robbins Island, a remote chunk of privately owned land just off the far north-west coast of Tasmania. My job at the time was identifying and counting birds as part of an environmental impact assessment for a proposed windfarm.

The uninhabited island is a tough place to get around, accessible only by four-wheel-drive across the mudflats, at low tide. But its wild west coast is a haven for many thousands of migratory shorebirds, around 25 species of which perform marathon, nearly non-stop flights from the Siberian tundra, where they breed, all the way to Australia and back, every year.

Going through my notes from December 2002, a few numbers jump out: over 600 Curlew Sandpipers; 100 Great Knots; 180 Grey Plovers; more than 3,000 Red-necked Stints. One month later, these birds were joined by over 240 Bar-tailed Godwits. The numbers were impressive, but fairly typical at the time.

*Five Grey Plovers over the Oregon coast, USA. Photo: Roy L Lowe*

Now the windfarm proposal is back on, and Andrew Darby – a Hobart-based journalist and the author of a new book, Flight Lines – has been helping survey birds on the island again.… Read more..

Flight Lines Read More »

Snail’s place

Environment / May 14, 2016 / 7 minutes of reading

In 1996, Dr John Stanisic, then curator of invertebrates at the Queensland Museum, was doing a routine environmental impact assessment near Taroom in southern central Queensland, some 380 kilometres north-west of Brisbane. The purpose of Stanisic’s survey was to check for rare and threatened species around an impoundment for the proposed Nathan Dam, on the Dawson River.

The dam was a controversial project in the district, as it would have flooded large areas of arable farmland. The usual arguments were trotted out about jobs for the local community. The water, it was said, would supply the needs of the local towns. Others suspected that the real reason was to service a proposed mine at nearby Wondoan, now in mothballs due to the tanking price of coal.

Stanisic and his team were checking an unusual habitat called boggomoss, where natural springs emerge from the Great Artesian Basin and create small lagoons in the otherwise dry semi-arid woodlands of the Brigalow Belt. One of his team, who was searching for isopods (which the rest of us know as slaters), unearthed a snail from the leaf litter. “I knew right away what it was,” Stanisic says. “It was like, Eureka!”

Stanisic, who goes by the name of the Snail Whisperer on his own website – he has discovered and described some 900 species since 1980 – had been searching for this particular mollusc for 10 years.… Read more..

Snail’s place Read More »

Not pretty enough: an extinction under our nose

Environment / January 11, 2012 / 7 minutes of reading

“Why do you see, why do you see, why do you see right through me?” – Kasey Chambers

Recently, my partner and I took a walk up in the forests of Mt Mee, at the northern end of the D’Aguilar Range about an hour’s drive from Brisbane. We had a specific purpose: we were searching for the rare, threatened and exceptionally beautiful Richmond Birdwing. To our delight, we found a male quickly, not far from the car park of the Mill Rainforest Walk. I’d wanted to see one of these creatures for years, and it was truly an eye-popping pleasure (photo courtesy Tom Tarrant).

The birdwing is a very large butterfly, one of three in the genus Ornithoptera in Australia. The males of all three species found in this country (the other two are the Cairns and New Guinea Birdwings) are similar: the upperwings are a striking contrast of deep velvet black and emerald green; the abdomen is bright yellow, while the underwings are adorned with an intricate latticework of yellow, black and turquoise. They are the southernmost representatives of their type, originally occurring from around Maryborough in south-east Queensland down to the Clarence River in northern New South Wales. Apparently they were abundant in Brisbane in the late 19th and early 20th centuries.… Read more..

Not pretty enough: an extinction under our nose Read More »