Hayley Geyle

(She/Her)

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Gilbert’s potoroo, a marsupial that may be extinct in 20 years. Dick Walker/Gilbert’s Potoroo Action Group

We identified the 63 animals most likely to go extinct by 2041. We can’t give up on them yet

Stephen Garnett, Charles Darwin University; Hayley Geyle, Charles Darwin University; John Woinarski, Charles Darwin University, and Mark Lintermans, University of Canberra

The hardest to save will be five reptiles, four birds, four frogs, two mammals and one fish, for which there are no recent confirmed records of their continued existence.
Spotted tree frog. Michael Williams/Its A Wildlife Photography

We name the 26 Australian frogs at greatest risk of extinction by 2040 — and how to save them

Graeme Gillespie, The University of Melbourne; Conrad Hoskin, James Cook University; Hayley Geyle, Charles Darwin University; Jaana Dielenberg, Charles Darwin University; Nicola Mitchell, The University of Western Australia, and Stephen Garnett, Charles Darwin University

We’ve identified three frog species very likely to already be extinct. Another four species on our list are still surviving, but not likely to make it to 2040 without help.
The bulloak jewel (Hypochrysops piceatus) Michael Braby

Next time you see a butterfly, treasure the memory: scientists raise alarm on these 26 species

Michael F. Braby, Australian National University; Hayley Geyle, Charles Darwin University; Jaana Dielenberg, Charles Darwin University; Phillip John Bell, University of Tasmania; Richard V Glatz, University of Adelaide; Roger Kitching, Griffith University, and Tim R New, La Trobe University

There’s still a very good chance of recovery for most of these species, but only with new targeted conservation effort.
Red-finned blue-eye Bush Heritage Australia / Adam Kerezsy

Australia’s smallest fish among 22 at risk of extinction within two decades

Mark Lintermans, University of Canberra; Hayley Geyle, Charles Darwin University; Jaana Dielenberg, The University of Queensland; John Woinarski, Charles Darwin University; Stephen Beatty, Murdoch University, and Stephen Garnett, Charles Darwin University

Twenty of these freshwater fish species have a 50% or greater probability of extinction within the next 20 years.
Success with conservation of Kangaroo Island’s Glossy Black-Cockatoos can now be compared with other bird conservation efforts around the country. Ian Sanderson/Flickr

For the first time we’ve looked at every threatened bird in Australia side‑by‑side

Stephen Garnett, Charles Darwin University; Alienor Chauvenet, Griffith University; April Reside, The University of Queensland; Brendan Wintle, The University of Melbourne; David Lindenmayer, Australian National University; David M Watson, Charles Sturt University; Elisa Bayraktarov, The University of Queensland; Hayley Geyle, Charles Darwin University; Hugh Possingham, The University of Queensland; Ian Leiper, Charles Darwin University; James Watson, The University of Queensland; Jim Radford, La Trobe University; John Woinarski, Charles Darwin University; Les Christidis, Southern Cross University; Martine Maron, The University of Queensland; Molly K Grace, University of Oxford; Paul McDonald, University of New England, and Sarah Legge, Australian National University

New research has shown how to measure conservation progress for Australia’s 238 endangered bird species
Maasai women on a conservation project in Kenya. Joan de la Malla

Indigenous peoples are crucial for conservation – a quarter of all land is in their hands

Stephen Garnett, Charles Darwin University; Álvaro Fernández-Llamazares, University of Helsinki; Cathy Robinson, CSIRO; Erle C. Ellis, University of Maryland, Baltimore County; Hayley Geyle, Charles Darwin University; Ian Leiper, Charles Darwin University; James Watson, The University of Queensland; Julia E. Fa, Manchester Metropolitan University; Kerstin Zander, Charles Darwin University; Micha V Jackson, The University of Queensland; Pernilla Malmer, Stockholm University; Tom Duncan, Charles Darwin University, and Zsolt Molnár, Hungarian Academy of Sciences, Budapest

A new map shows that more than 25% of all land outside Antarctica is held and managed by Indigenous peoples. This makes these communities vital allies in the global conservation effort.

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