Threatened Species Index
@aus-tsx.bsky.social
The Threatened Species Index tracks changes in the abundance of Australia's imperilled species. Part of @tern-aus.bsky.social at the University of Queensland.
https://tsx.org.au
https://tsx.org.au
Pinned
In December, we released the 2024 Threatened Species Index! The latest data indicate that threatened and near-threatened species in Australia have declined by an average of 73% since 1985.🐸🐦🌿🐨
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
For today’s #WildlifeWednesday is the endangered Baudin's Black-Cockatoo (Zanda baudinii), found in south-western WA. These cockatoos can live for over 50 years and have a narrower and longer bill than the Carnaby’s Black-Cockatoo, which they are sometimes mistaken for!
📷 Keith Lightbody
#WildOz
📷 Keith Lightbody
#WildOz
November 5, 2025 at 5:17 AM
For today’s #WildlifeWednesday is the endangered Baudin's Black-Cockatoo (Zanda baudinii), found in south-western WA. These cockatoos can live for over 50 years and have a narrower and longer bill than the Carnaby’s Black-Cockatoo, which they are sometimes mistaken for!
📷 Keith Lightbody
#WildOz
📷 Keith Lightbody
#WildOz
🐸 For today’s #WildlifeWednesday is the endangered Pugh's Sphagnum Frog (Philoria pughi) found in far north-east NSW at mid-to-high elevations. They breed in spring and summer, and eggs are laid in a foam mass into water-filled breeding chambers in the ground!
📷 Jasmine Vink
#WildOz
📷 Jasmine Vink
#WildOz
September 17, 2025 at 6:56 AM
🐸 For today’s #WildlifeWednesday is the endangered Pugh's Sphagnum Frog (Philoria pughi) found in far north-east NSW at mid-to-high elevations. They breed in spring and summer, and eggs are laid in a foam mass into water-filled breeding chambers in the ground!
📷 Jasmine Vink
#WildOz
📷 Jasmine Vink
#WildOz
Reposted by Threatened Species Index
🎤 Join our Ecoacoustics workshop at #UQResearchAndInnovation Week!
📅 10 September | 2pm–3pm AEST
Learn how to leverage TERN's sophisticated multi-sensor infrastructure that utilise new technologies for sound #BiodiversityMonitoring.
Register: research-support.uq.edu.au/event/sessio...
📅 10 September | 2pm–3pm AEST
Learn how to leverage TERN's sophisticated multi-sensor infrastructure that utilise new technologies for sound #BiodiversityMonitoring.
Register: research-support.uq.edu.au/event/sessio...
Ecoacoustics - Hybrid event
Towards comprehensive ecosystem understanding through integrated data analysis.
research-support.uq.edu.au
August 19, 2025 at 11:31 PM
🎤 Join our Ecoacoustics workshop at #UQResearchAndInnovation Week!
📅 10 September | 2pm–3pm AEST
Learn how to leverage TERN's sophisticated multi-sensor infrastructure that utilise new technologies for sound #BiodiversityMonitoring.
Register: research-support.uq.edu.au/event/sessio...
📅 10 September | 2pm–3pm AEST
Learn how to leverage TERN's sophisticated multi-sensor infrastructure that utilise new technologies for sound #BiodiversityMonitoring.
Register: research-support.uq.edu.au/event/sessio...
Reposted by Threatened Species Index
🐨🌿🦎 Today is #ThreatenedSpeciesDay, a moment to ponder the past and prevent similar outcomes for Australia's native flora and fauna. Kudos to the @aus-tsx.bsky.social team for their continuous efforts in monitoring and data collection!
Share your data with the TSX: tsx.org.au/growing-the-...
Share your data with the TSX: tsx.org.au/growing-the-...
September 8, 2025 at 1:02 AM
🐨🌿🦎 Today is #ThreatenedSpeciesDay, a moment to ponder the past and prevent similar outcomes for Australia's native flora and fauna. Kudos to the @aus-tsx.bsky.social team for their continuous efforts in monitoring and data collection!
Share your data with the TSX: tsx.org.au/growing-the-...
Share your data with the TSX: tsx.org.au/growing-the-...
Reposted by Threatened Species Index
🦜✨ The Aussie Bird Count is back 20–26 Oct!
Spend just 20 mins counting birds in your backyard, balcony, schoolyard, workplace or local park.
Last year 57k people counted 4.1M birds – let’s make 2025 bigger! 🐦
Register now! 👉 aussiebirdcount.org.au
#AussieBirdCount #BirdLifeOz
Spend just 20 mins counting birds in your backyard, balcony, schoolyard, workplace or local park.
Last year 57k people counted 4.1M birds – let’s make 2025 bigger! 🐦
Register now! 👉 aussiebirdcount.org.au
#AussieBirdCount #BirdLifeOz
September 10, 2025 at 3:54 AM
🦜✨ The Aussie Bird Count is back 20–26 Oct!
Spend just 20 mins counting birds in your backyard, balcony, schoolyard, workplace or local park.
Last year 57k people counted 4.1M birds – let’s make 2025 bigger! 🐦
Register now! 👉 aussiebirdcount.org.au
#AussieBirdCount #BirdLifeOz
Spend just 20 mins counting birds in your backyard, balcony, schoolyard, workplace or local park.
Last year 57k people counted 4.1M birds – let’s make 2025 bigger! 🐦
Register now! 👉 aussiebirdcount.org.au
#AussieBirdCount #BirdLifeOz
For this #WildlifeWednesday is the vulnerable Superb Parrot (Polytelis swainsonii) located in Victoria, ACT and NSW. They breed from September to January, and during this time, males may form flying flocks, sometimes consisting of over 30 individuals!
📷 Matthew Fitzgerald
#WildOz
📷 Matthew Fitzgerald
#WildOz
August 20, 2025 at 6:25 AM
For this #WildlifeWednesday is the vulnerable Superb Parrot (Polytelis swainsonii) located in Victoria, ACT and NSW. They breed from September to January, and during this time, males may form flying flocks, sometimes consisting of over 30 individuals!
📷 Matthew Fitzgerald
#WildOz
📷 Matthew Fitzgerald
#WildOz
🐸 For today’s #WildlifeWednesday is the vulnerable Pouched Frog (Assa darlingtoni). This small frog (up to 2 cm in length) is found in north-east NSW and south-east Qld. Tadpoles develop inside the male’s brood pouches, located on both sides of its lower body!
📷 Hines, H.; DES
#WildOz #frogs
📷 Hines, H.; DES
#WildOz #frogs
July 9, 2025 at 6:24 AM
🐸 For today’s #WildlifeWednesday is the vulnerable Pouched Frog (Assa darlingtoni). This small frog (up to 2 cm in length) is found in north-east NSW and south-east Qld. Tadpoles develop inside the male’s brood pouches, located on both sides of its lower body!
📷 Hines, H.; DES
#WildOz #frogs
📷 Hines, H.; DES
#WildOz #frogs
🐸 For today’s #WildlifeWednesday is the endangered Mahony's Toadlet (Uperoleia mahonyi) which was formally described in 2016. This small frog – growing up to 3.5 cm in body length – inhabits the mid-north coast of NSW and breeds in autumn and spring!
📷 Stephen Mahony
#WildOz #frogs
📷 Stephen Mahony
#WildOz #frogs
June 11, 2025 at 7:30 AM
🐸 For today’s #WildlifeWednesday is the endangered Mahony's Toadlet (Uperoleia mahonyi) which was formally described in 2016. This small frog – growing up to 3.5 cm in body length – inhabits the mid-north coast of NSW and breeds in autumn and spring!
📷 Stephen Mahony
#WildOz #frogs
📷 Stephen Mahony
#WildOz #frogs
For this #WildlifeWednesday is the vulnerable Painted Honeyeater (Grantiella picta), which grows up to 16 cm in length and is found in open forests and woodlands. This honeyeater is a specialist feeder, mostly feeding on the fruit of mistletoes, especially Amyema species!
📷 Andrew Silcocks
#WildOz
📷 Andrew Silcocks
#WildOz
May 21, 2025 at 5:52 AM
For this #WildlifeWednesday is the vulnerable Painted Honeyeater (Grantiella picta), which grows up to 16 cm in length and is found in open forests and woodlands. This honeyeater is a specialist feeder, mostly feeding on the fruit of mistletoes, especially Amyema species!
📷 Andrew Silcocks
#WildOz
📷 Andrew Silcocks
#WildOz
Reposted by Threatened Species Index
📹 In case you missed it, want to rewatch and share, the recording for our #InvasiveSpecies Vs #ThreatenedSpecies #webinar is now available on our TERN Webinars webpage.
Watch it here: www.tern.org.au/webinars/
Watch it here: www.tern.org.au/webinars/
May 12, 2025 at 1:03 AM
📹 In case you missed it, want to rewatch and share, the recording for our #InvasiveSpecies Vs #ThreatenedSpecies #webinar is now available on our TERN Webinars webpage.
Watch it here: www.tern.org.au/webinars/
Watch it here: www.tern.org.au/webinars/
Next up for #WildlifeWednesday is the endangered Woylie (Bettongia penicillata ogilbyi). The diet of this small, nocturnal marsupial includes underground fungi, bulbs, tubers and seeds. Their digging helps the ecosystem by spreading seeds and fungal spores!
📷 Wayne Lawler/AWC
#WildOz #mammals
📷 Wayne Lawler/AWC
#WildOz #mammals
May 14, 2025 at 7:11 AM
Next up for #WildlifeWednesday is the endangered Woylie (Bettongia penicillata ogilbyi). The diet of this small, nocturnal marsupial includes underground fungi, bulbs, tubers and seeds. Their digging helps the ecosystem by spreading seeds and fungal spores!
📷 Wayne Lawler/AWC
#WildOz #mammals
📷 Wayne Lawler/AWC
#WildOz #mammals
🐸For today’s #WildlifeWednesday is the critically endangered Spotted Tree Frog (Litoria spenceri), found in mountainous river systems in north-eastern Victoria and southern NSW. This frog grows up to 6cm in length and breeds from late October to early December!
📷 Adam Parsons
#WildOz #frogs
📷 Adam Parsons
#WildOz #frogs
May 7, 2025 at 6:39 AM
🐸For today’s #WildlifeWednesday is the critically endangered Spotted Tree Frog (Litoria spenceri), found in mountainous river systems in north-eastern Victoria and southern NSW. This frog grows up to 6cm in length and breeds from late October to early December!
📷 Adam Parsons
#WildOz #frogs
📷 Adam Parsons
#WildOz #frogs
For this #WildlifeWednesday is the endangered Lord Howe Woodhen (Hypotaenidia sylvestris) found on Lord Howe Island. These flightless medium-sized birds feed mostly on invertebrates including snails and worms. Adults pair for life and defend their territory of 2-3ha!
📷 Patrick Kavanagh
#WildOz
📷 Patrick Kavanagh
#WildOz
April 23, 2025 at 6:27 AM
For this #WildlifeWednesday is the endangered Lord Howe Woodhen (Hypotaenidia sylvestris) found on Lord Howe Island. These flightless medium-sized birds feed mostly on invertebrates including snails and worms. Adults pair for life and defend their territory of 2-3ha!
📷 Patrick Kavanagh
#WildOz
📷 Patrick Kavanagh
#WildOz
Next up for #WildlifeWednesday is the endangered Dibbler (Parantechinus apicalis) which was presumed extinct until 1967. This small, carnivorous marsupial is found in WA. They breed in autumn and adult females can carry up to 8 joeys in their pouch at one time!
📷 Cathy Lambert, Perth Zoo
#WildOz
📷 Cathy Lambert, Perth Zoo
#WildOz
April 16, 2025 at 6:10 AM
Next up for #WildlifeWednesday is the endangered Dibbler (Parantechinus apicalis) which was presumed extinct until 1967. This small, carnivorous marsupial is found in WA. They breed in autumn and adult females can carry up to 8 joeys in their pouch at one time!
📷 Cathy Lambert, Perth Zoo
#WildOz
📷 Cathy Lambert, Perth Zoo
#WildOz
🐸 For today’s #WildlifeWednesday is the vulnerable Sunset Frog (Spicospina flammocaerulea). This small frog (up to 3.5cm) is found in south-west WA and was only discovered in 1994. Inhabiting Australia for least 30 million years, it is one of the country’s oldest frogs!
📷 Adam Parsons
#WildOz
📷 Adam Parsons
#WildOz
April 9, 2025 at 6:33 AM
🐸 For today’s #WildlifeWednesday is the vulnerable Sunset Frog (Spicospina flammocaerulea). This small frog (up to 3.5cm) is found in south-west WA and was only discovered in 1994. Inhabiting Australia for least 30 million years, it is one of the country’s oldest frogs!
📷 Adam Parsons
#WildOz
📷 Adam Parsons
#WildOz
For #WildlifeWednesday today, we have the endangered Pretty Beard Orchid (Calochilus pulchellus). This herbaceous orchid occurs in southern NSW and eastern Victoria and flowers between late-October and late-November, producing up to 2 open flowers at a time – beautiful!
📷 John Briggs, OEH
#WildOz
📷 John Briggs, OEH
#WildOz
March 19, 2025 at 6:14 AM
For #WildlifeWednesday today, we have the endangered Pretty Beard Orchid (Calochilus pulchellus). This herbaceous orchid occurs in southern NSW and eastern Victoria and flowers between late-October and late-November, producing up to 2 open flowers at a time – beautiful!
📷 John Briggs, OEH
#WildOz
📷 John Briggs, OEH
#WildOz
For this #WildlifeWednesday is the endangered Northern Bettong (Bettongia tropica) found in Far North Queensland. During the day, these solitary nocturnal macropods take shelter in a nest – one that they built from plant material collected using their prehensile tail!
📷Wayne Lawler/AWC
#WildOz
📷Wayne Lawler/AWC
#WildOz
March 12, 2025 at 6:10 AM
For this #WildlifeWednesday is the endangered Northern Bettong (Bettongia tropica) found in Far North Queensland. During the day, these solitary nocturnal macropods take shelter in a nest – one that they built from plant material collected using their prehensile tail!
📷Wayne Lawler/AWC
#WildOz
📷Wayne Lawler/AWC
#WildOz
🦜 For today's #WildlifeWednesday is the critically endangered Swift Parrot (Lathamus discolor) – one of three migratory parrots in the world! They breed in Tasmania in spring-summer, nesting in tree hollows of eucalypts, then migrate to the south-east of mainland Australia.
📷 Mick Roderick
#WildOz
📷 Mick Roderick
#WildOz
March 5, 2025 at 6:24 AM
🦜 For today's #WildlifeWednesday is the critically endangered Swift Parrot (Lathamus discolor) – one of three migratory parrots in the world! They breed in Tasmania in spring-summer, nesting in tree hollows of eucalypts, then migrate to the south-east of mainland Australia.
📷 Mick Roderick
#WildOz
📷 Mick Roderick
#WildOz
🐸 For today’s #WildlifeWednesday is the endangered Mountain Frog (Philoria kundagungan) found at mid-high elevations in a small region of the Gondwana rainforests near the Qld-NSW border. They reach around 3cm and females lay eggs in water-filled cavities on land!
#WildOz
📷 Jodi Rowley
#WildOz
📷 Jodi Rowley
February 19, 2025 at 5:31 AM
🐸 For today’s #WildlifeWednesday is the endangered Mountain Frog (Philoria kundagungan) found at mid-high elevations in a small region of the Gondwana rainforests near the Qld-NSW border. They reach around 3cm and females lay eggs in water-filled cavities on land!
#WildOz
📷 Jodi Rowley
#WildOz
📷 Jodi Rowley
Some great news for your Friday morning: the critically endangered plains-wanderer has been detected on two pockets of remnant grassland using audio detectors and AI - the first time detected in Melbourne's west in over thirty years!
www.theguardian.com/environment/...
www.theguardian.com/environment/...
‘Like finding gold’: plains-wanderers spotted in Melbourne’s west for first time in 30 years with help of AI
Critically endangered bird detected after analysis of tens of thousands of hours of song meter recordings
www.theguardian.com
February 14, 2025 at 12:12 AM
Some great news for your Friday morning: the critically endangered plains-wanderer has been detected on two pockets of remnant grassland using audio detectors and AI - the first time detected in Melbourne's west in over thirty years!
www.theguardian.com/environment/...
www.theguardian.com/environment/...
In December, we released the 2024 Threatened Species Index! The latest data indicate that threatened and near-threatened species in Australia have declined by an average of 73% since 1985.🐸🐦🌿🐨
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
February 13, 2025 at 1:28 AM
In December, we released the 2024 Threatened Species Index! The latest data indicate that threatened and near-threatened species in Australia have declined by an average of 73% since 1985.🐸🐦🌿🐨
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
Visit tsx.org.au/tsx2024 to view the latest trends and tsx.org.au to learn more about the TSX!
Today's #WildlifeWednesday is the world’s rarest marsupial: the critically endangered Gilbert's Potoroo (Potorous gilbertii). Thought to be extinct for almost a century before it was rediscovered in 1994, there are now more than 110 individuals in the wild in WA! Pic: DBCA
February 12, 2025 at 5:04 AM
Today's #WildlifeWednesday is the world’s rarest marsupial: the critically endangered Gilbert's Potoroo (Potorous gilbertii). Thought to be extinct for almost a century before it was rediscovered in 1994, there are now more than 110 individuals in the wild in WA! Pic: DBCA