Geographic and taxonomic patterns of extinction risk in Australian squamates

Reid Tingley, Stewart L. Macdonald, Nicola J. Mitchell, John C.Z. Woinarski, Shai Meiri, Phil Bowles, Neil A. Cox, Glenn M. Shea, Monika Böhm, Janice Chanson, Marcelo F. Tognelli, Jaclyn Harris, Claire Walke, Natasha Harrison, Savannah Victor, Calum Woods, Andrew P. Amey, Mike Bamford, Gareth Catt, Nick Clemann & 33 others Patrick J. Couper, Hal Cogger, Mark Cowan, Michael D. Craig, Chris R. Dickman, Paul Doughty, Ryan Ellis, Aaron Fenner, Stewart Ford, Glen Gaikhorst, Graeme R. Gillespie, Matthew J. Greenlees, Rod Hobson, Conrad J. Hoskin, Ric How, Mark N. Hutchinson, Ray Lloyd, Peter McDonald, Jane Melville, Damian R. Michael, Craig Moritz, Paul M. Oliver, Garry Peterson, Peter Robertson, Chris Sanderson, Ruchira Somaweera, Roy Teale, Leonie Valentine, Eric Vanderduys, Melanie Venz, Erik Wapstra, Steve Wilson, David G. Chapple

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Australia is a global hotspot of reptile diversity, hosting ~10% of the world's squamate (snake and lizard) species. Yet the conservation status of the Australian squamate fauna has not been assessed for >25 years; a period during which the described fauna has risen by ~40%. Here we provide the first comprehensive conservation assessment of Australian terrestrial squamates using IUCN Red List Categories and Criteria. Most (86.4%; n = 819/948) Australian squamates were categorised as Least Concern, 4.5% were Data Deficient, and 7.1% (range 6.8%–11.3%, depending on the treatment of Data Deficient species) were threatened (3.0% Vulnerable, 2.7% Endangered, 1.1% Critically Endangered). This level of threat is low relative to the global average (~18%). One species (Emoia nativitatis) was assessed as Extinct, and two species (Lepidodactylus listeri and Cryptoblepharus egeriae) are considered Extinct in the Wild: all three were endemic to Christmas Island. Most (75.1%) threat assessments were based on geographic range attributes, due to limited data on population trends or relevant proxies. Agriculture, fire, and invasive species were the threats that affected the most species, and there was substantial geographic variation in the number of species affected by each threat. Threatened species richness peaked on islands, in the Southern Alps, and across northern Australia. Data deficiency was greatest in northern Australia and in coastal Queensland. Approximately one-in-five threatened species were not represented in a single protected area. Our analyses shed light on the species, regions, and threats in most urgent need of conservation intervention.

Original languageEnglish
Article number108203
Pages (from-to)1-10
Number of pages10
JournalBiological Conservation
Volume238
DOIs
Publication statusPublished - Oct 2019

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extinction risk
Squamata
extinction
threatened species
Territory of Christmas Island
fauna
geographical variation
invasive species
snakes
Queensland
reptiles
lizards
conservation areas
agriculture
species diversity
Red List
conservation status
snake
reptile
lizard

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Tingley, R., Macdonald, S. L., Mitchell, N. J., Woinarski, J. C. Z., Meiri, S., Bowles, P., ... Chapple, D. G. (2019). Geographic and taxonomic patterns of extinction risk in Australian squamates. Biological Conservation, 238, 1-10. [108203]. https://doi.org/10.1016/j.biocon.2019.108203
Tingley, Reid ; Macdonald, Stewart L. ; Mitchell, Nicola J. ; Woinarski, John C.Z. ; Meiri, Shai ; Bowles, Phil ; Cox, Neil A. ; Shea, Glenn M. ; Böhm, Monika ; Chanson, Janice ; Tognelli, Marcelo F. ; Harris, Jaclyn ; Walke, Claire ; Harrison, Natasha ; Victor, Savannah ; Woods, Calum ; Amey, Andrew P. ; Bamford, Mike ; Catt, Gareth ; Clemann, Nick ; Couper, Patrick J. ; Cogger, Hal ; Cowan, Mark ; Craig, Michael D. ; Dickman, Chris R. ; Doughty, Paul ; Ellis, Ryan ; Fenner, Aaron ; Ford, Stewart ; Gaikhorst, Glen ; Gillespie, Graeme R. ; Greenlees, Matthew J. ; Hobson, Rod ; Hoskin, Conrad J. ; How, Ric ; Hutchinson, Mark N. ; Lloyd, Ray ; McDonald, Peter ; Melville, Jane ; Michael, Damian R. ; Moritz, Craig ; Oliver, Paul M. ; Peterson, Garry ; Robertson, Peter ; Sanderson, Chris ; Somaweera, Ruchira ; Teale, Roy ; Valentine, Leonie ; Vanderduys, Eric ; Venz, Melanie ; Wapstra, Erik ; Wilson, Steve ; Chapple, David G. / Geographic and taxonomic patterns of extinction risk in Australian squamates. In: Biological Conservation. 2019 ; Vol. 238. pp. 1-10.
@article{573da94c6e0d4c3e8fe103276c500793,
title = "Geographic and taxonomic patterns of extinction risk in Australian squamates",
abstract = "Australia is a global hotspot of reptile diversity, hosting ~10{\%} of the world's squamate (snake and lizard) species. Yet the conservation status of the Australian squamate fauna has not been assessed for >25 years; a period during which the described fauna has risen by ~40{\%}. Here we provide the first comprehensive conservation assessment of Australian terrestrial squamates using IUCN Red List Categories and Criteria. Most (86.4{\%}; n = 819/948) Australian squamates were categorised as Least Concern, 4.5{\%} were Data Deficient, and 7.1{\%} (range 6.8{\%}–11.3{\%}, depending on the treatment of Data Deficient species) were threatened (3.0{\%} Vulnerable, 2.7{\%} Endangered, 1.1{\%} Critically Endangered). This level of threat is low relative to the global average (~18{\%}). One species (Emoia nativitatis) was assessed as Extinct, and two species (Lepidodactylus listeri and Cryptoblepharus egeriae) are considered Extinct in the Wild: all three were endemic to Christmas Island. Most (75.1{\%}) threat assessments were based on geographic range attributes, due to limited data on population trends or relevant proxies. Agriculture, fire, and invasive species were the threats that affected the most species, and there was substantial geographic variation in the number of species affected by each threat. Threatened species richness peaked on islands, in the Southern Alps, and across northern Australia. Data deficiency was greatest in northern Australia and in coastal Queensland. Approximately one-in-five threatened species were not represented in a single protected area. Our analyses shed light on the species, regions, and threats in most urgent need of conservation intervention.",
keywords = "Assessment, Conservation status, Extinction risk, IUCN, Reptiles, Threat status",
author = "Reid Tingley and Macdonald, {Stewart L.} and Mitchell, {Nicola J.} and Woinarski, {John C.Z.} and Shai Meiri and Phil Bowles and Cox, {Neil A.} and Shea, {Glenn M.} and Monika B{\"o}hm and Janice Chanson and Tognelli, {Marcelo F.} and Jaclyn Harris and Claire Walke and Natasha Harrison and Savannah Victor and Calum Woods and Amey, {Andrew P.} and Mike Bamford and Gareth Catt and Nick Clemann and Couper, {Patrick J.} and Hal Cogger and Mark Cowan and Craig, {Michael D.} and Dickman, {Chris R.} and Paul Doughty and Ryan Ellis and Aaron Fenner and Stewart Ford and Glen Gaikhorst and Gillespie, {Graeme R.} and Greenlees, {Matthew J.} and Rod Hobson and Hoskin, {Conrad J.} and Ric How and Hutchinson, {Mark N.} and Ray Lloyd and Peter McDonald and Jane Melville and Michael, {Damian R.} and Craig Moritz and Oliver, {Paul M.} and Garry Peterson and Peter Robertson and Chris Sanderson and Ruchira Somaweera and Roy Teale and Leonie Valentine and Eric Vanderduys and Melanie Venz and Erik Wapstra and Steve Wilson and Chapple, {David G.}",
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language = "English",
volume = "238",
pages = "1--10",
journal = "Biological Conservation",
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Tingley, R, Macdonald, SL, Mitchell, NJ, Woinarski, JCZ, Meiri, S, Bowles, P, Cox, NA, Shea, GM, Böhm, M, Chanson, J, Tognelli, MF, Harris, J, Walke, C, Harrison, N, Victor, S, Woods, C, Amey, AP, Bamford, M, Catt, G, Clemann, N, Couper, PJ, Cogger, H, Cowan, M, Craig, MD, Dickman, CR, Doughty, P, Ellis, R, Fenner, A, Ford, S, Gaikhorst, G, Gillespie, GR, Greenlees, MJ, Hobson, R, Hoskin, CJ, How, R, Hutchinson, MN, Lloyd, R, McDonald, P, Melville, J, Michael, DR, Moritz, C, Oliver, PM, Peterson, G, Robertson, P, Sanderson, C, Somaweera, R, Teale, R, Valentine, L, Vanderduys, E, Venz, M, Wapstra, E, Wilson, S & Chapple, DG 2019, 'Geographic and taxonomic patterns of extinction risk in Australian squamates', Biological Conservation, vol. 238, 108203, pp. 1-10. https://doi.org/10.1016/j.biocon.2019.108203

Geographic and taxonomic patterns of extinction risk in Australian squamates. / Tingley, Reid; Macdonald, Stewart L.; Mitchell, Nicola J.; Woinarski, John C.Z.; Meiri, Shai; Bowles, Phil; Cox, Neil A.; Shea, Glenn M.; Böhm, Monika; Chanson, Janice; Tognelli, Marcelo F.; Harris, Jaclyn; Walke, Claire; Harrison, Natasha; Victor, Savannah; Woods, Calum; Amey, Andrew P.; Bamford, Mike; Catt, Gareth; Clemann, Nick; Couper, Patrick J.; Cogger, Hal; Cowan, Mark; Craig, Michael D.; Dickman, Chris R.; Doughty, Paul; Ellis, Ryan; Fenner, Aaron; Ford, Stewart; Gaikhorst, Glen; Gillespie, Graeme R.; Greenlees, Matthew J.; Hobson, Rod; Hoskin, Conrad J.; How, Ric; Hutchinson, Mark N.; Lloyd, Ray; McDonald, Peter; Melville, Jane; Michael, Damian R.; Moritz, Craig; Oliver, Paul M.; Peterson, Garry; Robertson, Peter; Sanderson, Chris; Somaweera, Ruchira; Teale, Roy; Valentine, Leonie; Vanderduys, Eric; Venz, Melanie; Wapstra, Erik; Wilson, Steve; Chapple, David G.

In: Biological Conservation, Vol. 238, 108203, 10.2019, p. 1-10.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Geographic and taxonomic patterns of extinction risk in Australian squamates

AU - Tingley, Reid

AU - Macdonald, Stewart L.

AU - Mitchell, Nicola J.

AU - Woinarski, John C.Z.

AU - Meiri, Shai

AU - Bowles, Phil

AU - Cox, Neil A.

AU - Shea, Glenn M.

AU - Böhm, Monika

AU - Chanson, Janice

AU - Tognelli, Marcelo F.

AU - Harris, Jaclyn

AU - Walke, Claire

AU - Harrison, Natasha

AU - Victor, Savannah

AU - Woods, Calum

AU - Amey, Andrew P.

AU - Bamford, Mike

AU - Catt, Gareth

AU - Clemann, Nick

AU - Couper, Patrick J.

AU - Cogger, Hal

AU - Cowan, Mark

AU - Craig, Michael D.

AU - Dickman, Chris R.

AU - Doughty, Paul

AU - Ellis, Ryan

AU - Fenner, Aaron

AU - Ford, Stewart

AU - Gaikhorst, Glen

AU - Gillespie, Graeme R.

AU - Greenlees, Matthew J.

AU - Hobson, Rod

AU - Hoskin, Conrad J.

AU - How, Ric

AU - Hutchinson, Mark N.

AU - Lloyd, Ray

AU - McDonald, Peter

AU - Melville, Jane

AU - Michael, Damian R.

AU - Moritz, Craig

AU - Oliver, Paul M.

AU - Peterson, Garry

AU - Robertson, Peter

AU - Sanderson, Chris

AU - Somaweera, Ruchira

AU - Teale, Roy

AU - Valentine, Leonie

AU - Vanderduys, Eric

AU - Venz, Melanie

AU - Wapstra, Erik

AU - Wilson, Steve

AU - Chapple, David G.

PY - 2019/10

Y1 - 2019/10

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KW - Assessment

KW - Conservation status

KW - Extinction risk

KW - IUCN

KW - Reptiles

KW - Threat status

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DO - 10.1016/j.biocon.2019.108203

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SN - 0006-3207

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