Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/01/2026(6/8) These systems are dynamic. Under low-oxygen conditions inside bark, some microbes can switch to producing methane or hydrogen — meaning climate change (e.g. flooding, warming) could alter these processes... 110
Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/01/2026(4/8) Our lab and field experiments show bark microbes can remove multiple climate-relevant gases from the atmosphere, with particularly strong uptake and affinity for hydrogen. 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/01/2026(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.🦠 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/01/2026(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. 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/01/2026(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/... 22310
Dr. Luke Jeffrey @jeffrethane.bsky.social · 19/11/2025New #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... 074
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/06/2025One way to collect 500 mL of #methane ebullition from a #GhostForest in 8 m of standing water… 061
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/06/2025What a way to start the (sampling) day 👌 with @jodittmann.bsky.social 093
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/06/2025Top winters day back at the Ghost Forest sampling for @jodittmann.bsky.social PhD projects. Plenty of ebullition bubbles down there!! 041
Dr. Luke Jeffrey @jeffrethane.bsky.social · 10/04/2025And 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… 1120
Dr. Luke Jeffrey @jeffrethane.bsky.social · 05/04/2025Photo 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.🌳 1100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 03/04/2025Our terrestrial #biogeochemistry research team in action yesterday investigating #GHG, #nutrient and #carbon fluxes in tropical wetland forests in the Northern Territory. #treethane 090
Dr. Luke Jeffrey @jeffrethane.bsky.social · 01/04/2025Tropical fieldwork day 2. Only 102 mm of rain yesterday🙃A few pics between the deluge ⛈️ 140
Dr. Luke Jeffrey @jeffrethane.bsky.social · 31/03/2025Fieldwork in the tropics - 12 degrees south 🐊⛈️🦟 140
Dr. Luke Jeffrey @jeffrethane.bsky.social · 30/01/2025New Zealand tree appreciation after a recent holiday. Amazing Redwoods, deadwoods, Kauri and Pohutukawa on the north island. 060
Dr. Luke Jeffrey @jeffrethane.bsky.social · 26/11/2024Recent #Fieldwork rekkie scouting out forested #wetland sites for new #PhD student Scott Cramb to investigate #tree dwelling trace gas #microbial communities and fluxes 0121
Dr. Luke Jeffrey @jeffrethane.bsky.social · 14/10/2024Check out our new paper in STOTEN 🚨 #Groundwater discharge and bank overtopping drive large #Carbon exports from Indian #Sundarban #Mangroves 🍃 www.sciencedirect.com/science/arti... 000
Dr. Luke Jeffrey @jeffrethane.bsky.social · 24/09/2024Another top day in the #Rainforest wrapping up a long term study of tree #Methane cycling for @jodittmann.bsky.social #PhD 🙌 032
Dr. Luke Jeffrey @jeffrethane.bsky.social · 28/05/2024Beautiful day for fieldwork measuring #rainforest #methane fluxes for @jodittmann.bsky.social ‘s #PhD. 031
Dr. Luke Jeffrey @jeffrethane.bsky.social · 10/05/2024Big 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! 021
Dr. Luke Jeffrey @jeffrethane.bsky.social · 10/04/2024An amazing green tree snake literally just sliding on up the side of a tree at my fieldwork site! 🐍 030
Dr. Luke Jeffrey @jeffrethane.bsky.social · 27/03/2024Had 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! 020
Dr. Luke Jeffrey @jeffrethane.bsky.social · 25/03/2024New 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 043
Dr. Luke Jeffrey @jeffrethane.bsky.social · 22/03/2024Prof Scott Johnson was taking the science to the next level today!🤙🧗 010
Dr. Luke Jeffrey @jeffrethane.bsky.social · 21/03/2024Very 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! 061
Dr. Luke Jeffrey @jeffrethane.bsky.social · 05/03/2024🚨@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.... 043
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/03/2024...we also managed to have a quick swim in tropical Litchfield National Park during the wet season 🐊 000
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/03/2024...and visiting CDU's long-tern stream carbon monitoring sites + measuring the 'first' Australian tropical headwater riparian tree stem methane fluxes... 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/03/2024Highlights of the trip included a field trip to Litchfield NP TERN flux tower site... 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/03/2024Was 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.. 100
Dr. Luke Jeffrey @jeffrethane.bsky.social · 07/02/2024First official DECRA fieldwork today with @jodittmann.bsky.social collecting tree stem gas fluxes the ‘old school’ way using vials. Definitely way too hot for waders but apparently not for methanogens. 030
Dr. Luke Jeffrey @jeffrethane.bsky.social · 16/01/2024Check out our new OpenAccess paper in JGR Biogeochemistry showing how 'Large Methane Emissions from Tree Stems Complicate the Wetland Methane Budget' agupubs.onlinelibrary.wiley.com/doi/10.1029/... 062
Dr. Luke Jeffrey @jeffrethane.bsky.social · 18/12/2023Last day scouting out rainforest methane with #PhD @jodittmann.bsky.social and Adi. Was 38 degrees C in the shade so very thankful for the canopy coverage!! 🥵 021
Dr. Luke Jeffrey @jeffrethane.bsky.social · 13/12/2023Fortunate to have such a pristine site to work in <1 hr from SCU Lismore campus! First day scouting #Rainforest methane dynamics for Johannes’s #PhD project with @drdamo77.bsky.social and Adi 041
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/12/2023After an exciting #PhD that will help contribute to meaningful change? Come work with us! We are seeking a PhD student (3.3 years fully funded) to investigate novel bark-dwelling microbial communities and greenhouse gas fluxes from Australian forests 🦠🍃| 🙏 share and apply here: tinyurl.com/mprmsaeh 112
Dr. Luke Jeffrey @jeffrethane.bsky.social · 04/12/2023Our new #OpenAccess paper in @newphyt.bsky.social shows how rapid bark-mediated #tree stem #methane transport occurs independently of the transpiration stream in #Melaleuca quinquenervia nph.onlinelibrary.wiley.com/share/BICV7K... 043