Matthew Holden 🏳️🌈
@matthholden.bsky.social
Mathematician working in Ecology, Biodiversity Conservation, Fisheries, Natural Resource Management, Wildlife Trade, and Sustainability. Senior Lecturer at the University of Queensland. Vice president of the Resource Modeling Association #LGBTQSTEM he/they
Great work classifying ecosystems around the world to create an IUCN red list of ecosystems presented by Prof Emily Nicholson. Shows a small global decline in ecosystems but with extreme variation with some declining rapidly. 🌍
@aciucn.bsky.social @uq-cbcs.bsky.social
@aciucn.bsky.social @uq-cbcs.bsky.social
July 1, 2025 at 1:30 AM
Great work classifying ecosystems around the world to create an IUCN red list of ecosystems presented by Prof Emily Nicholson. Shows a small global decline in ecosystems but with extreme variation with some declining rapidly. 🌍
@aciucn.bsky.social @uq-cbcs.bsky.social
@aciucn.bsky.social @uq-cbcs.bsky.social
Bycatch reduction interventions are effective for improving marine species populations but very few studies report the impacts on fisher safety, and other fisher objectives. This is a major barrier to adoption. Great talk by Cindy Vargas @arizonastateuni.bsky.social at #iccb2025.
June 16, 2025 at 5:56 AM
Bycatch reduction interventions are effective for improving marine species populations but very few studies report the impacts on fisher safety, and other fisher objectives. This is a major barrier to adoption. Great talk by Cindy Vargas @arizonastateuni.bsky.social at #iccb2025.
We can achieve 100% renewable energy in Australia & also protect threatened species impacted by wind and solar developments with only 2-3% increase in electricity bills compared to if we didn't consider threatened species. #iccb2025 great talk by A Rogers
June 16, 2025 at 5:21 AM
We can achieve 100% renewable energy in Australia & also protect threatened species impacted by wind and solar developments with only 2-3% increase in electricity bills compared to if we didn't consider threatened species. #iccb2025 great talk by A Rogers
Please share. 2 tenure-track T&R math/stat jobs at the University of Queensland, Australia. Amazing weather, gorgeous campus & lifestyle. 17% employer retirement contribution, lots of leave. Strong global reputation. Supports diversity @stevenstrogatz.com uq.wd3.myworkdayjobs.com/en-US/uqcare...
May 16, 2025 at 1:26 AM
Please share. 2 tenure-track T&R math/stat jobs at the University of Queensland, Australia. Amazing weather, gorgeous campus & lifestyle. 17% employer retirement contribution, lots of leave. Strong global reputation. Supports diversity @stevenstrogatz.com uq.wd3.myworkdayjobs.com/en-US/uqcare...
Amazing talk by Dr Helen Mayfield on building models to manage ecosystems by consulting experts in a systematic way (expert elicitation) ... and most importantly an evaluation of whether it worked. @uq-cbcs.bsky.social @martinemaron.bsky.social
May 6, 2025 at 1:14 AM
Amazing talk by Dr Helen Mayfield on building models to manage ecosystems by consulting experts in a systematic way (expert elicitation) ... and most importantly an evaluation of whether it worked. @uq-cbcs.bsky.social @martinemaron.bsky.social
Great talk by @alicetwomey.bsky.social on solving the barriers for transdisciplinary research in conservation at the @uq-cbcs.bsky.social seminar. The methods exist we just need to use them. doi.org/10.1016/j.pe...
April 8, 2025 at 1:45 AM
Great talk by @alicetwomey.bsky.social on solving the barriers for transdisciplinary research in conservation at the @uq-cbcs.bsky.social seminar. The methods exist we just need to use them. doi.org/10.1016/j.pe...
Is Australia really a global leader in conserving our oceans? A/Prof Carissa Klein of @uq-cbcs.bsky.social says we have good intentions but need to do better, and we are currently NOT a leader due climate change policy, incl. approving new coal mines, and substandard fishery management funding 🌏
February 21, 2025 at 3:08 AM
Is Australia really a global leader in conserving our oceans? A/Prof Carissa Klein of @uq-cbcs.bsky.social says we have good intentions but need to do better, and we are currently NOT a leader due climate change policy, incl. approving new coal mines, and substandard fishery management funding 🌏
Nice best paper talk on methods for fitting time series data to stochastic models by Brock Sherlock at UNSW. Paper 👉 doi.org/10.1007/s115.... @smbmathbiology.bsky.social at #Anziam2025 MBSIG workshop.
February 6, 2025 at 11:43 PM
Nice best paper talk on methods for fitting time series data to stochastic models by Brock Sherlock at UNSW. Paper 👉 doi.org/10.1007/s115.... @smbmathbiology.bsky.social at #Anziam2025 MBSIG workshop.
Congrats to Maria Kleshnina for winning the best talk by a non-student at #ANZIAM2025 the prestigious cherry ripe prize. Voted by the students. So we'll deserved!
February 6, 2025 at 2:06 AM
Congrats to Maria Kleshnina for winning the best talk by a non-student at #ANZIAM2025 the prestigious cherry ripe prize. Voted by the students. So we'll deserved!
Vivien Challis gives an exemplary maths plenary at #Anziam2025. I'm probably as distant from her area possible, yet my attention was glued the whole time. I now want to do a PhD in topology optimisation - just need to go back in time 15 years.
February 4, 2025 at 1:55 AM
Vivien Challis gives an exemplary maths plenary at #Anziam2025. I'm probably as distant from her area possible, yet my attention was glued the whole time. I now want to do a PhD in topology optimisation - just need to go back in time 15 years.
Excited for Vivien Challis's plenary on a tour of topology optimisation methods and applications at #anziam2025. In the introduction to Challis's work this word cloud shows how international it is, as both spellings of optimisation are prominent.
February 4, 2025 at 1:20 AM
Excited for Vivien Challis's plenary on a tour of topology optimisation methods and applications at #anziam2025. In the introduction to Challis's work this word cloud shows how international it is, as both spellings of optimisation are prominent.
Always good to be reminded of the importance of phytoplankton and zooplankton in ocean dynamics. Celia Dowling explores their dynamics at #anziam2024
February 2, 2025 at 11:54 PM
Always good to be reminded of the importance of phytoplankton and zooplankton in ocean dynamics. Celia Dowling explores their dynamics at #anziam2024
In a great talk @sarahvollert.bsky.social shows us how to use approximate Bayesian computation to calibrate and fit models when there is limited or no raw data and expert elicitation #anziam2025
February 2, 2025 at 11:12 PM
In a great talk @sarahvollert.bsky.social shows us how to use approximate Bayesian computation to calibrate and fit models when there is limited or no raw data and expert elicitation #anziam2025
Please share: Apply for ECR Keynote + travel grant, World Conference on Natural Resource Modeling, Nepal 2025. App = abstract + CV due 29 Jan. See 👉 resourcemodeling.org/rma-conferen.... Topic: Modeling for biodiversity, ecology, sustainability, fish, forest, ag, water, env sci, econ, etc. 🌍
January 24, 2025 at 1:51 AM
Please share: Apply for ECR Keynote + travel grant, World Conference on Natural Resource Modeling, Nepal 2025. App = abstract + CV due 29 Jan. See 👉 resourcemodeling.org/rma-conferen.... Topic: Modeling for biodiversity, ecology, sustainability, fish, forest, ag, water, env sci, econ, etc. 🌍
#ESAus2024: alcohol/food didn't affect guesses on the number of species observed in our house (answer 1,168, average ESA guess 200). An excuse to indulge at tonight's dinner. Find Andrew Rogers if you want to chat about our house biodiversity study 👉 doi.org/10.1002/ecy.... 🌍 @ecolsocaus.bsky.social
December 11, 2024 at 2:07 AM
#ESAus2024: alcohol/food didn't affect guesses on the number of species observed in our house (answer 1,168, average ESA guess 200). An excuse to indulge at tonight's dinner. Find Andrew Rogers if you want to chat about our house biodiversity study 👉 doi.org/10.1002/ecy.... 🌍 @ecolsocaus.bsky.social
At the last ESA, ecologists guessed how many species we found in our Brisbane home. Average guess: 200. Answer: 1,168. I suspect the average Aussie ecologist is from Melbourne ;) @ecolsocaus.bsky.social. Sad I'm missing #EsAus2024, but excited for all the bluesky updates. doi.org/10.1002/ecy....
December 8, 2024 at 10:25 PM
At the last ESA, ecologists guessed how many species we found in our Brisbane home. Average guess: 200. Answer: 1,168. I suspect the average Aussie ecologist is from Melbourne ;) @ecolsocaus.bsky.social. Sad I'm missing #EsAus2024, but excited for all the bluesky updates. doi.org/10.1002/ecy....
Wow! Clever new experiments by Ryan Opera show "loss aversion", the tendency to perceive losses as worse than gains, can be explained by confusion/mistakes due to complexity rather than irrationality. Turns behavioural econ on its head! 🧪 📈 www.dropbox.com/scl/fi/9fk8l...
December 5, 2024 at 10:59 PM
Wow! Clever new experiments by Ryan Opera show "loss aversion", the tendency to perceive losses as worse than gains, can be explained by confusion/mistakes due to complexity rather than irrationality. Turns behavioural econ on its head! 🧪 📈 www.dropbox.com/scl/fi/9fk8l...
Very excited for this talk on radical conservation and environmental science collaborations with philanthropy by Madeleine McKinnon 🌍 who’s given out over 8 billion $ accords many organizations. At @uq-cbcs.bsky.social end of year event.
December 3, 2024 at 1:06 AM
Very excited for this talk on radical conservation and environmental science collaborations with philanthropy by Madeleine McKinnon 🌍 who’s given out over 8 billion $ accords many organizations. At @uq-cbcs.bsky.social end of year event.
When the gym gets flooded it’s time to look for frogs! Even got a green-thighed tree frog. Thanks @samuelho.bsky.social for all the frog spotting last night at Springfield lake (accessible via short 30min train from Brisbane - you should go check it out)
December 1, 2024 at 10:13 PM
When the gym gets flooded it’s time to look for frogs! Even got a green-thighed tree frog. Thanks @samuelho.bsky.social for all the frog spotting last night at Springfield lake (accessible via short 30min train from Brisbane - you should go check it out)
Excited and humbled to be awarded a Discovery Project Grant on the value of data and models to improve the management of diseases, biodiversity, and food production with @katehelmstedt.bsky.social, & @hugepossum.bsky.social & Katriona Shea. Keep an eye out for new postdoc and PhD positions. 🦤🧪
November 29, 2024 at 5:14 AM
Excited and humbled to be awarded a Discovery Project Grant on the value of data and models to improve the management of diseases, biodiversity, and food production with @katehelmstedt.bsky.social, & @hugepossum.bsky.social & Katriona Shea. Keep an eye out for new postdoc and PhD positions. 🦤🧪
Maths and Stats folks, Monash Uni is hiring in the fields of business stats and actuarial science @monashuniversity.bsky.social
November 29, 2024 at 3:32 AM
Maths and Stats folks, Monash Uni is hiring in the fields of business stats and actuarial science @monashuniversity.bsky.social
Great talk by Jaramar Villarreal Rosas on how we need to map, predict and plan for overcoming legal red tape (regulatory & institutional structures) when doing systematic conservation planning. @uq-cbcs.bsky.social
November 26, 2024 at 1:37 AM
Great talk by Jaramar Villarreal Rosas on how we need to map, predict and plan for overcoming legal red tape (regulatory & institutional structures) when doing systematic conservation planning. @uq-cbcs.bsky.social
This classic paper (Lande 1993) derives formulas for species extinction risk as a function of growth rate, carrying capacity, environmental shocks, and growth rate variability. The theory is under-used mathematics for endangered species listing policy 🌍🧪 🦤 ms.mcmaster.ca/~bolker/misc...
November 20, 2024 at 10:45 PM
This classic paper (Lande 1993) derives formulas for species extinction risk as a function of growth rate, carrying capacity, environmental shocks, and growth rate variability. The theory is under-used mathematics for endangered species listing policy 🌍🧪 🦤 ms.mcmaster.ca/~bolker/misc...
When do you need to collect more data? ... surprisingly, more data often has little value for decisions. Our new paper unravels why "Value of Information Analyses" can yield surprising results in #ecology doi.org/10.1111/2041... w @katehelmstedt.bsky.social in @methodsinecoevol.bsky.social 🌍
November 18, 2024 at 10:27 PM
When do you need to collect more data? ... surprisingly, more data often has little value for decisions. Our new paper unravels why "Value of Information Analyses" can yield surprising results in #ecology doi.org/10.1111/2041... w @katehelmstedt.bsky.social in @methodsinecoevol.bsky.social 🌍
Is the fact that I like to study fish and homoclinic bifurcations a coincidence? #mathematics #fisheries Image taken from one of my older papers. arxiv.org/pdf/1703.06736
November 15, 2024 at 11:48 PM
Is the fact that I like to study fish and homoclinic bifurcations a coincidence? #mathematics #fisheries Image taken from one of my older papers. arxiv.org/pdf/1703.06736