Dr. Luke Jeffrey
@jeffrethane.bsky.social
ARC DECRA Fellow | Biogeochemist | Senior researcher investigating the role of tree stems and their microbial communities within the global climate cycles. #Treethane #Methane #Wetlands #Carbon #Forests 🌱
Reposted by Dr. Luke Jeffrey
Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1
November 16, 2025 at 5:16 AM
Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1
Reposted by Dr. Luke Jeffrey
Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1
November 16, 2025 at 5:16 AM
Bark-associated diazotroph communities are a cryptic source of nitrogen in forests https://www.biorxiv.org/content/10.1101/2025.11.14.688567v1
Reposted by Dr. Luke Jeffrey
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
https://go.nature.com/3FQOdls
Ancient carbon released through modern rivers
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.
go.nature.com
June 9, 2025 at 12:01 PM
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
https://go.nature.com/3FQOdls
Reposted by Dr. Luke Jeffrey
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.
June 7, 2025 at 10:34 PM
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.
Reposted by Dr. Luke Jeffrey
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.
June 5, 2025 at 12:32 PM
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.
Reposted by Dr. Luke Jeffrey
🌊
Out today in Nature, our paper on the drivers of the record 2023 summer heating of the North Atlantic. Temperatures warmed to record levels in just a few months. The impacts on climate & ecosystems were severe. A thread on how this work came about and what we found.👇👇🧵 www.nature.com/articles/s41...
June 4, 2025 at 5:07 PM
🌊
Reposted by Dr. Luke Jeffrey
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/...
Packed with spore-tacular science.
A collection that highlights advances, identifies unresolved questions & the future research directions.
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Mycorrhizal networks: Understanding hidden complexity
Read the free Plain Language Summary for this article on the Journal blog.
besjournals.onlinelibrary.wiley.com
June 4, 2025 at 5:10 PM
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/...
Packed with spore-tacular science.
A collection that highlights advances, identifies unresolved questions & the future research directions.
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Dr. Luke Jeffrey
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...
February 11, 2025 at 7:37 PM
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...
Reposted by Dr. Luke Jeffrey
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/...
at Uppsala University. I can highly recommend Uppsala as a place to live and work.
www.uu.se/en/about-uu/...
February 3, 2025 at 5:38 PM
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/...
at Uppsala University. I can highly recommend Uppsala as a place to live and work.
www.uu.se/en/about-uu/...
Reposted by Dr. Luke Jeffrey
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
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
June 4, 2025 at 3:27 PM
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
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
Reposted by Dr. Luke Jeffrey
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/...
Mapping the world's inland surface waters: an upgrade to the Global Lakes and Wetlands Database (GLWD v2)
essd.copernicus.org/articles/17/...
Mapping the world's inland surface waters: an upgrade to the Global Lakes and Wetlands Database (GLWD v2)
Abstract. In recognition of the importance of inland waters, numerous datasets mapping their extents, types, or changes have been created using sources ranging from historical wetland maps to real-tim...
essd.copernicus.org
June 4, 2025 at 11:14 AM
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/...
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…
June 4, 2025 at 11:15 AM
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
June 4, 2025 at 11:08 AM
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!!
June 4, 2025 at 11:03 AM
Top winters day back at the Ghost Forest sampling for @jodittmann.bsky.social PhD projects. Plenty of ebullition bubbles down there!!
Reposted by Dr. Luke Jeffrey
Back in the Ghost Forest, looking #GHG from dead trees with @jeffrethane.bsky.social
June 2, 2025 at 9:02 AM
Back in the Ghost Forest, looking #GHG from dead trees with @jeffrethane.bsky.social
Reposted by Dr. Luke Jeffrey
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.
April 2, 2025 at 1:58 AM
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.
Reposted by Dr. Luke Jeffrey
Here’s our The Conversation piece about the research.
Reducing air pollution could increase methane emissions from wetlands – here’s what needs to be done
Improved computer models shed light on how reducing sulphur emissions will inadvertently release methane from wetlands.
theconversation.com
February 6, 2025 at 12:59 PM
Here’s our The Conversation piece about the research.
Reposted by Dr. Luke Jeffrey
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.
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.
May 1, 2025 at 11:19 PM
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.
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.
Reposted by Dr. Luke Jeffrey
🌿 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
🌎 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
April 3, 2025 at 12:45 PM
🌿 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
🌎 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
Reposted by Dr. Luke Jeffrey
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/...
Investigating the accuracy of tropical woody stem CO2 efflux estimates: scaling methods, and vertical and diel variation
Stem CO2 efflux (EA) significantly contributes to autotrophic and ecosystem respiration in tropical forests, but field methodologies often introduce biases and uncertainty. This study evaluates thes...
nph.onlinelibrary.wiley.com
April 7, 2025 at 8:00 AM
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/...
Reposted by Dr. Luke Jeffrey
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....
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....
Combined CH4, N2O, and CO2 Fluxes Reveal a Net Carbon Sink Across a Glacier‐Ocean Continuum
A rapidly-retreating marine-terminating glacier exported CH4 to nearshore waters N2O was undersaturated near the glacier front The regional CO2 sink greatly outweighs CH4 and N2O emissions
agupubs.onlinelibrary.wiley.com
February 18, 2025 at 9:06 AM
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....
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....
Our terrestrial #biogeochemistry research team in action yesterday investigating #GHG, #nutrient and #carbon fluxes in tropical wetland forests in the Northern Territory. #treethane
April 3, 2025 at 8:41 PM
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 ⛈️
April 1, 2025 at 7:33 PM
Tropical fieldwork day 2. Only 102 mm of rain yesterday🙃A few pics between the deluge ⛈️