Our new ditch GHG paper now online in final view. A great team effort led by @tksilver.bsky.social with contributions from an all-star cast of supporting authors. iopscience.iop.org/article/10.1...

Bark microbiota modulate climate-active gas fluxes in Australian forests | Science www.science.org/doi/10.1126/...

New research reveals that paperbarks, among other trees, host abundant, specialized, and metabolically active bark-dwelling microbial communities that modulate climatically relevant gases, including methane, hydrogen, and carbon monoxide. Learn more this week in Science: https://scim.ag/4bp9hgl

Tree bark has a total surface area similar to all of the land area on Earth. It is home to a wide range of microbial species unknown to science, and they can either take up or emit gases that have a warming effect on the climate

Tree bark has a total surface area similar to all of the land area on Earth. It is home to a wide range of microbial species unknown to science, and they can either take up or emit gases that have a warming effect on the climate

(1/8) 🚨Thrilled to share our new research, now published on the cover of @science.org ! 🌳🦠 We discovered that tree #Bark — largely regarded as inert — hosts vast #Microbial communities that actively interact with the atmosphere. 🧵👇 www.science.org/doi/10.1126/...

New #PrePrint by #PhD @jodittmann.bsky.social open for discussion on @egubg.bsky.social investigating the question: 'Are #GhostForests a substantial source of #Methane from #Reservoirs?' 👻🪵 👇 egusphere.copernicus.org/preprints/20...

Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1

Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1

A global analysis reveals that most carbon dioxide emitted by rivers derives not from modern plant material, as was thought, but from ancient, buried carbon https://go.nature.com/3FQOdls

Enjoyed being back on the New River in southwest Virginia. First float of the year after full leaf out & first time floating this section (Whitehorne -> Eggleston) after hurricane Helene.

No advert out yet, but I will recruiting a 2yr postdoc, start date autumn 2025, at @livunigeog.bsky.social soon. Lowland and upland peatlands, GHGs, DOM and water chemistry. Plenty of fieldwork. Feel free to drop me a DM or email if you might be interested, and please spread the word.

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It’s alive! Our Mycorrhizal Networks special issue is out in Functional Ecology. Packed with spore-tacular science. A collection that highlights advances, identifies unresolved questions & the future research directions. besjournals.onlinelibrary.wiley.com/doi/10.1111/...

We are seeking a Postdoctoral Researcher (PDRA) in Freshwater Ecosystem Ecology researching the role of organic matter as a nutrient resource in freshwater ecosystems. A 4.5 year role with great training opportunites in isotope ecology and mesocosm experimental science www.jobs.ac.uk/job/DLU610/p...

There's a postdoc in peatland biogeochemistry advertised on our project by Dolly Kothawala and Gustaf Granath at Uppsala University. I can highly recommend Uppsala as a place to live and work. www.uu.se/en/about-uu/...

New paper! led by Josh Dean “Old carbon routed from land to the atmosphere by global river systems” doi.org/10.1038/s415... #radiocarbon in #rivers reveals the age of CO2 they release to the atmosphere. An active leak of old carbon from land. 🧪⚒️ @joshfdean.bsky.social @oxuniearthsci.bsky.social

A fantastic new mapping product for the world's inland waters, a critical driver for studying GHG emissions, biodiversity, and much more. Mapping the world's inland surface waters: an upgrade to the Global Lakes and Wetlands Database (GLWD v2) essd.copernicus.org/articles/17/...

One way to collect 500 mL of #methane ebullition from a #GhostForest in 8 m of standing water…

What a way to start the (sampling) day 👌 with @jodittmann.bsky.social

Top winters day back at the Ghost Forest sampling for @jodittmann.bsky.social PhD projects. Plenty of ebullition bubbles down there!!

Back in the Ghost Forest, looking #GHG from dead trees with @jeffrethane.bsky.social

Last week I had the pleasure of hosting our @soaes-unisq.bsky.social undergrad students studying Water Science during the WAT1101 residential school. In true Toowoomba style, the students had the full immersion experience, with consistent rain during the entire 3 days of our field tour.

Here’s our The Conversation piece about the research.

What if plants could pick their own fungal protectors?! ⚔️🌱 We're looking for a PhD student for a unique dual award PhD. Based at Western Sydney Uni & spend 12-18 months at University of Sheffield. You will work with me and with Profs Katie Field, Scott Johnson, Jeff Powell, and Jurriaan Tonn.

🌿 Pristine mangroves absorb nitrous oxide (N2O), offsetting up to 71% of methane (CH4) emissions. 🌎 Global N2O uptake may compensate one-third of aquatic CH4 emissions. aslopubs.onlinelibrary.wiley.com/doi/full/10.... @aslo.org @barefootlab.bsky.social @biogeoste.bsky.social #ASLO_Letters

Our new paper is out today @newphyt.bsky.social We investigated the bias involved in woody stem CO2 efflux measurements in tropical forests - including diel and vertical variations, and used TLS to upscale vertical variations and estimate stem surface area nph.onlinelibrary.wiley.com/doi/10.1111/...

My last PhD chapter is out! Combined GHG fluxes reveal a net carbon sink across a glacier-ocean continuum — glacier exports CH₄ to coastal waters, but strong CO₂ uptake outweighs GHG emissions. 🌊❄️ Read more: agupubs.onlinelibrary.wiley.com/doi/full/10....

And that’s a wrap! Huge effort from #SCU team working in the hot and humid tropical #wetland and #Savannah #forests in the Northern Territory. Many thanks to #CDU colleagues for incredible support and assistance 🙌 Now it’s time for GHG data analysis…

Photo dump from amazing field sites in Australia’s Northern Territory. Our #PhD students are collecting data to better understand #carbon, #nutrient and green house gas fluxes in #tropical wetland and upland forests.🌳

Our terrestrial #biogeochemistry research team in action yesterday investigating #GHG, #nutrient and #carbon fluxes in tropical wetland forests in the Northern Territory. #treethane

Tropical fieldwork day 2. Only 102 mm of rain yesterday🙃A few pics between the deluge ⛈️

Fieldwork in the tropics - 12 degrees south 🐊⛈️🦟

New Zealand tree appreciation after a recent holiday. Amazing Redwoods, deadwoods, Kauri and Pohutukawa on the north island.

Going to re-up these two post doc opportunities as the deadline is fast approaching.

Firefighting planes are dumping ocean water on the Los Angeles fires − why using saltwater is typically a last resort theconversation.com/firefighting... by Pat Megonigal of SERC!

Awesome outcome of Apra Tomer’s MSc work summarising >10 years of field investigations at 40 coastal systems from 14 countries. Groundwater discharge explained much of the CO2 tidal dynamics in nearshore waters. www.science.org/doi/full/10....

Proud to be a part of the authorship team on this one! Groundwater discharge contributes large amounts of carbon dioxide to coastal ecosystems and warrants inclusion in their carbon budgets. www.science.org/doi/full/10....

A new paper by Amaral et al., showing that #TreeStem #Methane fluxes exceeds #Ebullition and #Diffusive flux pathway from innundated #Amazonian #Wetland #Forests www.tandfonline.com/doi/full/10....

A new paper: 'Tidal influence on #CarbonDioxide and #Methane fluxes from #TreeStems and soils in #Mangrove forests' in @eurogeosciences.bsky.social bg.copernicus.org/articles/21/...

As we approach the end of 2024 I wanted to share some field trip highlights 1/n January 2024 My hefty Aussie bulldog (hence life jacket) has well developed sea legs taking a peruse on St George’s Basin where fetch driven erosion of northern shorelines is evident

Aquatic science folks: Would anyone mind sharing a conference poster that presents some kind of water quality time series data? I'm developing a water science course where students will make a poster on water quality data they collect during the trimester. I would love to provide some examples!

🚨 #DiscoveryProjects #DP25 announcement: ❗️Outcomes announced publicly for Discovery Projects 2025❗️ See ARC's RMS for list ➡️ rms.arc.gov.au/RMS/Report/D... /bot

You hear about our successes a lot on here, but I don't talk enough about the rejections. As of today, 10 out of the 12 grants members of our lab put in this year didn't get up. Most grants were led by early-career researchers in/with our team as a way for them to lead independent programs. 1/3

Recent #Fieldwork rekkie scouting out forested #wetland sites for new #PhD student Scott Cramb to investigate #tree dwelling trace gas #microbial communities and fluxes

Honoured to receive Monash University's inaugural Researcher of the Year award last night. Since starting my group eight years ago, the university has enabled us to do creative, impactful, often programmatic research. This award recognises a huge collective effort from our team and collaborators.

Check out our new paper in STOTEN 🚨 #Groundwater discharge and bank overtopping drive large #Carbon exports from Indian #Sundarban #Mangroves 🍃 www.sciencedirect.com/science/arti...

Another top day in the #Rainforest wrapping up a long term study of tree #Methane cycling for @jodittmann.bsky.social #PhD 🙌

Day 1 of our last field campaign. We will miss those trees and palms. Thank you to @jeffrethane.bsky.social and Scott and the Holsworth Wildlife Research Endowment.

Look up, tree barks contain active microbial communities that cycle climate-active gases including CH₄, H₂, CO and VOCs. In our new #Preprint we coupled genome-resolved #Metagenomics with #Biogeochemical fluxes to highlight this cryptic process 🦠🍃 www.biorxiv.org/content/10.1...