Joseph Tobias
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josephtobias.bsky.social
Joseph Tobias
@josephtobias.bsky.social

Birds, biodiversity, evolutionary biology, macroecology, conservation biology, ecosystem science, sustainable development, world birding, and other stuff. He/him
More at http://www.tobiaslab.net

Environmental science 42%
Biology 24%

Absolute scenes in Yunnan when this happened today
New study from Ty Loft’s PhD thesis. We used an energetic approach to quantify, acr sub-Saharan Africa, how mammal- and bird-mediated ecosystem functions have changed. We found that overall trophic energy flows have decreased by more than one-third, but this change varies across biomes and land uses
Energy flows reveal declining ecosystem functions by animals across Africa - Nature
An ecosystem energetics approach, quantifying trophic energy flows across species, offers a unified framework for linking animal biodiversity loss to changes in ecosystem function and Earth system pro...
www.nature.com
Our new @nature.com shows that energy flows mediated by mammals and birds across sub-Saharan Africa have declined by >30% unevenly across functional groups, with major consequences ecosystem functions
shorturl.at/AD0Yb

A long and busy week ended on a high yesterday. So proud of Dr @jyang19.bsky.social for sailing through her PhD viva, the final step of a long journey in my lab from a Silwood masters degree to a doctorate. 💪

Big thanks to Profs Cris Banks-Leite and Gavin Thomas for examining.

Wish I’d been there for that part! Boo to online vivas. Congrats to Dan - great thesis - and lots of luck with next steps 🪶

Reposted by Laura E. Dee

A heads-up for anyone interested in research quality, repeatability & transparency: I'm leading a 2-hour session at 10 am UK-time tomorrow, in conjunction with others.
Hopefully this can form the basis of a guidelines paper, so we're hoping you can join online to guide us in the right direction. 🌐🌎

Reposted by Joseph A. Tobias

🚨 SORTEE’s conference #SORTEE2025 is fast approaching

This year, we have opted once again for a format that facilitates lively exchanges of ideas & which has led to wonderful outcomes. Some examples: www.sortee.org/past/
There is still time to join us - register at sortee.org/upcoming/
Past events
Past events by Society for Open, Reliable, and Transparent Ecology and Evolutionary biology (SORTEE)
www.sortee.org

Good memories. My second attempt, and such a relief!
We have a new paper developing methods for looking at bird-fire macroecology. What’s most fascinating to me is that the magnitude *and* direction of fire effects can vary enormously across a species range. Stationarity is dead!! Long live non-stationarity!!

doi.org/10.1002/fee....
Evaluating macroecological fire impacts on bird populations
Fire regimes are context-dependent, as are the ways that animals respond. However, most information on animal responses to fire comes from short-term local field studies, which are hard to extrapolat....
doi.org
Confused writing is usually a symptom of confused thinking. As we struggle to clarify writing, we clarify our thoughts. AI writing aids rob us of that struggle, leaving clean-looking text and thoughts still confused for lack of inspection. Writing is not just a product; it is a diagnostic tool.

Colonial superorganisms breaking basic biological rules again. 🐜🧪

Perfect. If you can just tick the box in the Behaviors section called "Foraging or eating" that works fine!

Great shot. Will you be uploading to eBird? Would be useful for our dietary analysis

🚨New paper led by @adrianaalzate.bsky.social showing that in most plant and animal groups the age of a species predicts its geographical range size, although the relationship is strongly mediated by dispersal ability and occurrence on islands 🧪🌐🪶

www.nature.com/articles/s41...
A new @natcomms.nature.com study led by iDiv alumna @adrianaalzate.bsky.social @naturalis.bsky.social uncovered that across >26,000 species evolutionary age is positively linked to range size, except in marine mammals.

#Biodiversity #Evolution #iDivResearch
www.idiv.de/older-specie...
Older species tend to have large ranges – unless they live on islands
New Nature Communication publications sheds light on how ecological, evolutionary, and geographical processes can simultaneously shape species’ vulnerability to extinction.
www.idiv.de

Reposted by Joseph A. Tobias

Pick an idiom: "more than meets the eye", "beauty more than skin [feather] deep" etc.

In work led by Rosalyn Price-Waldman, we describe a hidden (and ignored!) black or white layer found below the visible surface of bird feathers which helps make bird colours so striking!

🧪 🪶 #colsci
Songbirds play optical tricks to make their feather colors ‘pop’
Concealed black or white bands on feathers boost the vibrancy of bird plumage
www.science.org

Reposted by Joseph A. Tobias

🥳 New paper out in the Biological Journal of the Linnean Society!

Manakin’s moving melody: the interplay between courtship dance display and vocalization as a predictor of hybridization in manakins (Aves: Pipridae)
academic.oup.com/biolinnean/a...

#ornithology

Hmm yeah, I saw that. If it's the post I'm thinking about. Not exactly insightful comments either.

I mean, I agree that some room for debate on socials is good, and comments shouldn't always be fluffy. But the tendency you report is real and annoying

Well done, @kerrys189.bsky.social, and a much deserved ‘no corrections’. A really excellent thesis and it was a pleasure being involved. Best of luck with next steps!
Super happy that @kerrys189.bsky.social passed her viva with no corrections!! 🥳🥳🥳

Congratulations, Dr. Stewart!!

The EcCo lab will miss you, but we know you are off to do amazing things

Thanks to the excellent examiners @alexpigot.bsky.social & @vlboult.bsky.social
Super happy that @kerrys189.bsky.social passed her viva with no corrections!! 🥳🥳🥳

Congratulations, Dr. Stewart!!

The EcCo lab will miss you, but we know you are off to do amazing things

Thanks to the excellent examiners @alexpigot.bsky.social & @vlboult.bsky.social

Well done to you and Anne for getting all of us over the line. Long journey! Thanks for getting me involved and for the opportunity to put some well-brewed ideas into words. 🙏🌳🌎
We should come to terms with the fact that forest, shrubland, grassland, and wetland ecosystems cannot offset fossil fuel CO₂ emissions.

But we should still protect and restore them for biodiversity and other ecosystem benefits.
Limited carbon sequestration potential from global ecosystem restoration - Nature Geoscience
The maximum carbon sequestration potential from global terrestrial ecosystem restoration efforts until 2100 is 96.9 Gt, which is equivalent to 3.7–12.0% of anthropogenic emissions until then, accordin...
www.nature.com

Agreed. We make this point clearly, including the abstract. It's the reason why species-centric conservation has taken centre stage and will continue to do so. Problem is it won't work without better integration with the second column – and fortunately that process of integration is underway.

All good points. I think the key point you are missing is that we are not advocating replacing one strategy with the other. More like the left hand box (traditional conservation approaches) is doomed to fail without better integration with the right hand box

I think your critique is also oversimplistic and false!
Agreed about the co-supportive element though. We make this point very clearly in the paper (including the title)

Warning: May include parrots (all of them)

Beautiful thread by my brilliant colleague, Silu Wang, outlining the special issue she has just released (with Anne Yoder). She highlights some of the wider themes inspiring our article (in same issue) about rethinking the boundaries and targets of biodiversity conservation.
🫠. A tree came out today with 9,072 bird species, all placements based on actual DNA. It looks like they used eBird 2022 taxonomy; 10,096 were recognized back then. That means these folks just dropped (molecularly well informed) knowledge on 83% of the world's birds.

www.cell.com/current-biol...
A new time tree of birds reveals the interplay between dispersal, geographic range size, and diversification
Flight may affect the dispersal and evolution of birds. Using a new evolutionary tree, Claramunt et al. find that efficient fliers have broader geographic ranges, and speciation reduces range size, bu...
www.cell.com

🕊️🙏
Birds are dinosaurs who shrugged off a couple apocalypses. Some eat bone marrow. Some drink nectar. They outswim fish in the sea. They smile politely at gravity’s demands. ‬

‪I am grateful to see them. I am grateful to feed them. I am grateful to know them.‬