Graeme Cumming
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gscumming.bsky.social
Graeme Cumming
@gscumming.bsky.social

Ecologist of the frontiers... Prof at University of Western Australia & posting on ecology, conservation, academic life.

Environmental science 60%
Geography 15%

Very sad news, and a big loss to our community.
Devastating news that marine biologist, science communicator, and UniMelb VC Professor Emma Johnston has died after a short illness.
She really was an extraordinary and visionary leader, and I have no doubt she would have made a fine Chief Scientist one day.
theconversation.com/emma-johnsto...
Emma Johnston was a visionary scientist, environmentalist and leader, with an abiding hope for humanity
The University of Melbourne Vice-Chancellor, who has died aged 52, was driven by a deep love of science and a desire to safeguard the planet’s future.
theconversation.com
Devastating news that marine biologist, science communicator, and UniMelb VC Professor Emma Johnston has died after a short illness.
She really was an extraordinary and visionary leader, and I have no doubt she would have made a fine Chief Scientist one day.
theconversation.com/emma-johnsto...
Emma Johnston was a visionary scientist, environmentalist and leader, with an abiding hope for humanity
The University of Melbourne Vice-Chancellor, who has died aged 52, was driven by a deep love of science and a desire to safeguard the planet’s future.
theconversation.com
Percentage of self-sufficiency for specific food groups*

From Stehl et al. Nature Food 2025 www.nature.com/articles/s43...

*National food availability from domestic production as proportion from recommended intake by the Livewell diet. 100% means that all recommendations of a food group are met.
So reindeer (Rangifer tarandus) can't fly, but they are VERY MAGICAL.

For example, their EYES CHANGE COLOR during the year & they're one of the few large mammals that can see UV. Golden brown in summer, deep blue in winter.

Let's talk about the unique visual adaptations of Rudolph and company.
Our new review lays out a framework for understanding the social-ecological benefits of protected areas to their surroundings - just published in One Earth:
www.cell.com/one-earth/ab...
doi.org/10.1016/j.oneear.2025.101462

Reposted by Graeme S. Cumming

Tiger Shark * Boop *
“Solar-powered slug.” Photo by Giancarlo Mazarese

The sheep nudibranch Costasiella kuroshimae can feed on algae and sequester the chloroplasts into its own cells, where they capture sunlight and produce energy through photosynthesis.

Reposted by Trevor A. Branch

Seems like unlucky timing for Rudolph…
It's the first video evidence of polar bears hunting and eating reindeer—something that had long been assumed, but never clearly seen.

Learn more: https://scim.ag/4s0hU6P #ScienceMagArchives
It's the first video evidence of polar bears hunting and eating reindeer—something that had long been assumed, but never clearly seen.

Learn more: https://scim.ag/4s0hU6P #ScienceMagArchives
🚨 Two funded PhDs (one int'l, one UK) - study coral restoration & corporate sustainability with us in Lancaster! Enquiries welcome, January 30, please share widely! 🚨

🪸🐠 Coral restoration (int'l): www.findaphd.com/phds/project...

🌴📊 Corporate sustainability (UK): www.findaphd.com/phds/project...
Published!📖

This study shows that choosing the most effective restoration strategy for tropical forests at scale depends equally if not more on economic and logistical than ecological constraints.

Read more:https://buff.ly/MTipuln

Dogfish, I think! A kind of small shark - that's not a baby.
Warming oceans are having widespread and often negative effects on migratory seabirds, new research involving UKCEH shows.

The study compared seasonal sea surface temperatures with seabird numbers to quantify effects on reproduction, survival & population trends. doi.org/10.1073/pnas...

🧪1/
Demographic responses of North Atlantic seabirds to seasonal ocean warming | PNAS
Climate-driven ocean warming is profoundly reshaping marine ecosystems, with cascading effects on biodiversity and trophic interactions. For migrat...
doi.org

Reposted by Graeme S. Cumming

New publication

Activities undertaken by Indigenous Australians as “caring for Country”: A systematic review

Link: link.springer.com/article/10.1...
Activities undertaken by Indigenous Australians as “caring for Country”: A systematic review - Ambio
Senior Aboriginal leaders have stated that all decent Australians should be encouraged to take on the responsibility of caring for Country. There is much to be learned from caring for Country, particu...
link.springer.com
A history of Stommel diagrams (from 2011)
rs.resalliance.org/2010/02/24/a...

showing how nature is dynamic across space & time

Reposted by Graeme S. Cumming

Who said flying is limited to the sky?

This footage shows the largest known migration of mobula rays, captured in the waters of Baja California Sur.

Filmed by freediver and photographer Aidan Bedford.
A quiet reminder that art often begins with attention.

#NatureAsArt #VisualWonder #Observation

Reposted by Graeme S. Cumming

“The scientists do not know exactly what has caused this pandemic, but Cano said humans were ‘probably involved’ in the distribution of the disease. Current theories about its transmission include shipping, changes to currents and abnormal wave activity.” 🦠🪸 www.theguardian.com/environment/...
Sea urchin species on brink of extinction after marine pandemic
Ecologically important Diadema africanum almost eliminated by unknown disease in Canary Islands
www.theguardian.com

Also I am very grateful to UWA and my bosses for giving me the space and support to develop and run this massive analysis. I started my current fellowship very drained from the admin battles of trying to land an ARC Centre of Excellence gently, and getting back to science has been fantastic.
Happy to share my new publication in #Nature
doi.org/10.1038/s415.... Vegetation spillovers from Aus protected areas are common & widespread; also, management inside the area can affect vegetation outside the area. Spillovers don't factor much into conservation policy, but perhaps they should! 🧪🌍🌐
Protected area management has significant spillover effects on vegetation - Nature
Analysis of effect sizes of vegetation spillovers from protected areas in Australia shows that 71% of over 3,063 analysed protected areas had a positive spillover effect, and that these effects c...
doi.org
🏔️ Landscape composition shapes biological control by promoting off-season predator diversity

Our work demonstrates how off-season crop management and landscape structure jointly support overwintering predator populations and sustain their biological control potential🌍

Read more: buff.ly/CpAT3sQ

Reposted by Graeme S. Cumming

[tracker kneels and examines spoor]
- A herd of twits has passed this way but an hour ago.
- How can you tell?
- Look. Fresh nincompoop.

Ah noooo! So I haven’t been to the *proper* source after all 🧐
A new study finds the Zambezi River starts not in Zambia but in Angola’s highlands, adding 342 km to its length. Rivers there supply ~70% of the water that feeds Victoria Falls, underscoring the need to protect the Upper Zambezi Basin, where forest loss is rising.
Scientists chart a new source, and length, for Africa’s famous Zambezi River
A new study suggests that the Zambezi River, Africa’s fourth-longest, is 11% longer than previously thought, with its most distant source lying in Angola, not Zambia. While the finding leaves the…
news.mongabay.com

Reposted by Graeme S. Cumming

A new study finds the Zambezi River starts not in Zambia but in Angola’s highlands, adding 342 km to its length. Rivers there supply ~70% of the water that feeds Victoria Falls, underscoring the need to protect the Upper Zambezi Basin, where forest loss is rising.
Scientists chart a new source, and length, for Africa’s famous Zambezi River
A new study suggests that the Zambezi River, Africa’s fourth-longest, is 11% longer than previously thought, with its most distant source lying in Angola, not Zambia. While the finding leaves the…
news.mongabay.com

Reposted by Graeme S. Cumming

Spotted Eagle Rays.
They get the eagle part of their name from their snout, or beak, which they use to forage for invertebrates in the sand.

Looks like it found the fishosphere
Photo of the day: A blue footed booby diving into the big blue. 📸

Photography by Henley Spiers.

Reposted by Graeme S. Cumming

The Tasselled Wobbegong is a master of disguise that can eat a fish almost as big as itself in one gulp. It's classified as a shark, but when it lays on the sea floor it looks like a harmless rug if you manage to see it. But with powerful jaws and sharp teeth they are no fish to mess with.

Reposted by Graeme S. Cumming

Photo of the day: A blue footed booby diving into the big blue. 📸

Photography by Henley Spiers.

Félicitations, Anne! Bien méritées.