Dr. Luke Jeffrey
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 JeffreyOur 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...
- Reposted by Dr. Luke JeffreyBark microbiota modulate climate-active gas fluxes in Australian forests | Science www.science.org/doi/10.1126/...
- Reposted by Dr. Luke JeffreyNew 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: scim.ag/4bp9hgl
- Reposted by Dr. Luke JeffreyTree 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
- Reposted by Dr. Luke JeffreyTree 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/...
- (2/8) Across 8 common Australian tree species (paperbarks, eucalypts, acacias, mangroves & more), bark contains trillions of microbial cells per m² — distinctly unique from soil or water communities.
- (3/8) These bark microbes aren’t just living there — they’re active. Many use trace gases like #Hydrogen (H₂), #Methane (CH₄), and #CarbonMonoxide (CO) as #Carbon and energy sources.🦠
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View full thread(8/8) Also see the short piece we wrote for @theconversation.com here: theconversation.com/we-discovere...
- 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...
- Reposted by Dr. Luke JeffreyBark-associated diazotroph communities are a cryptic source of nitrogen in forests biorxiv.org/content/10.1101/202…
- Reposted by Dr. Luke JeffreyBark-associated diazotroph communities are a cryptic source of nitrogen in forests biorxiv.org/content/10.1101/202…
- Reposted by Dr. Luke JeffreyA 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/3FQOdls
- Reposted by Dr. Luke JeffreyEnjoyed 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 JeffreyNo 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...
- Reposted by Dr. Luke JeffreyIt’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/...
- Reposted by Dr. Luke JeffreyWe 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 JeffreyThere'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/...
- Excited to finally announce our new project, funded by Water4All Partnership and led by @hydrokoch.bsky.social. Looking forward to new collaborations and lots of peaty research.
- Reposted by Dr. Luke JeffreyNew 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
- Reposted by Dr. Luke JeffreyA 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!!
- Reposted by Dr. Luke JeffreyBack in the Ghost Forest, looking #GHG from dead trees with @jeffrethane.bsky.social
- Reposted by Dr. Luke JeffreyLast 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 JeffreyHere’s our The Conversation piece about the research.
- Reposted by Dr. Luke JeffreyWhat 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.
- 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
- Reposted by Dr. Luke JeffreyOur 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 JeffreyMy 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.
- Reposted by Dr. Luke JeffreyGoing to re-up these two post doc opportunities as the deadline is fast approaching.
- Reposted by Dr. Luke JeffreyFirefighting 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!
- Reposted by Dr. Luke JeffreyAwesome 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....
- Reposted by Dr. Luke JeffreyProud 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/...
- Reposted by Dr. Luke JeffreyAs 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
- Reposted by Dr. Luke JeffreyAquatic 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!
- Reposted by Dr. Luke Jeffrey🚨 #DiscoveryProjects #DP25 announcement: ❗️Outcomes announced publicly for Discovery Projects 2025❗️ See ARC's RMS for list ➡️ rms.arc.gov.au/RMS/Report/D... /bot
- Reposted by Dr. Luke JeffreyYou 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
- Reposted by Dr. Luke JeffreyHonoured 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 🙌
- Reposted by Dr. Luke JeffreyDay 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...
- Reposted by Dr. Luke JeffreyLuckily, that strangler fig didnt fall on any of our sample trees.
- Reposted by Dr. Luke JeffreySecond day of fieldwork measuring rainforest #methane fluxes, with the help from Adi. Thanks for the support from the Holsworth Wildlife Research Endowment.
- Beautiful day for fieldwork measuring #rainforest #methane fluxes for @jodittmann.bsky.social ‘s #PhD.
- Big week in the forest sampling various biomes, biogeochemisty and bark for Paula’s PhD. We even managed managed to find a little sunshine at times!
- An amazing green tree snake literally just sliding on up the side of a tree at my fieldwork site! 🐍
- Had the pleasure of showing a couple of visitors around my supratidal and freshwater Melaleuca wetland sites. Jeff Kelleway and Raf Carvalho measuring site elevation with RTK GNSS. Tree L21 is in fact 6.7 MASL!
- New project funding = new #PhD position! Come work with me investigating #Microbes and #Methane fluxes in Australian #Wetlands #Mangroves and #Rainforests #FindAPhD #Treethane Full details on how to apply: tinyurl.com/udb3xepm
- Prof Scott Johnson was taking the science to the next level today!🤙🧗
- Very very very very wet day, sampling rainforest during the rain with Paula and @jodittmann.bsky.social 🌧️ Lucky the river didn’t rise any more otherwise we’d be camping in there overnight!
- New paper led by Fern Adame showing that 'All tidal #Wetlands are #BlueCarbon ecosystems' in Oxford BioScience Here we discuss & suggest that all wetlands & #Forests influenced by tides should be considered as #BlueCarbon ecosystems🌱 academic.oup.com/bioscience/a...
- 🚨@newphyt.bsky.social Commentary: 'Researchers barking up (the right) tree find new mechanisms controlling #methane transport by woody vegetation' - a thoughtful & well-written commentary by Ward& Megonigal on the importance of our recent #Melaleuca paper🌱 nph.onlinelibrary.wiley.com/doi/full/10....
- Was privileged to be hosted by Clem Duvert at tropical CDU (Darwin) with a bunch of clever folks working towards refining the Australian inland water C-Budget last week..
- Highlights of the trip included a field trip to Litchfield NP TERN flux tower site...
- ...and visiting CDU's long-tern stream carbon monitoring sites + measuring the 'first' Australian tropical headwater riparian tree stem methane fluxes...
- ...we also managed to have a quick swim in tropical Litchfield National Park during the wet season 🐊
