It's not just Victoria's iconic mountain ash trees at risk – it's every species in their community

By David Lindenmayer, Professor, The Fenner School of Environment and Society, Australian National University
Chris Taylor, Research Fellow, Fenner School of Environment and Society, Australian National University
Elle Bowd, Research fellow, Australian National University
Kita Ashman, Adjunct research associate, Charles Sturt University

When we think of extinction, we think of individual species. But nature doesn’t operate like that. Entire communities and even whole ecosystems are now so compromised they could be lost entirely. Australia now has about 100 ecological communities at risk.

One of those is the iconic Mountain Ash (Eucalyptus regnans) community in Victoria’s Central Highlands. Many of us know and love these regal trees, the tallest flowering plant in the world. But decades of logging, repeated…

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