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Timothy Martin

@treephys.bsky.social
2.1K followers 1.8K following 580 posts

Tree Ecophysiology Professor, University of Florida School of Forest, Fisheries, and Geomatics Sciences. Trees, forests, forestry. Posts do not represent my employer. Plant ecophysiology starter pack: go.bsky.app/Pbq39H7

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Timothy Martin @treephys.bsky.social · 25/05/2026
Vegetative and floral buds on southern magnolia (*Magnolia grandiflora*).
Vegetative bud.Floral bud.
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Timothy Martin @treephys.bsky.social · 15/05/2026
Channeling the pine plantation energy.
A group of people standing in a pine plantation, taken with a wide angle lens so they appear to be standing in a geometric dome constructed of pine stems and crowns.
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Tobias Wilson-Bates @phdhurtbrain.bsky.social · 08/05/2026
They’re gonna close down the predatory learning management system unless we put on the best dang talent show this town has ever seen!!!
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Krista Koeller @kristalerista.bsky.social · 01/05/2026
No food here, only sticks. 🎥Bart Coppens
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Jacquelyn Gill @jacquelyngill.bsky.social · 01/05/2026
For the last day of my Paleoecology senior capstone, students made PSA-style posters in class. For the prompt, I asked them, “what’s one idea from studying the past that will help us protect the future?” Here’s what they came up with.
A hand-drawn colorful image of a nautilus, feathered dinosaur, and trilobite, reading “Nature is resilient, but we might not be. Protect our place on Earth.”A pencil sketch of dinosaurs on the left and birds and reptiles on the right, reading “RESILIENCE: a species may die…but their memory lives on.”A colorful sketch of insects on green paper reading “Protect all species: even the ones you don’t like.”A black sketch on yellow paper depicting a lion in Europe, camel in North America, and tropical and temperate trees growing together. It reads NICHES: broader than you think!
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Timothy Martin @treephys.bsky.social · 21/04/2026
Wildfire smoke on University of Florida campus this morning. North Florida is a tinderbox.
Wildfire haze on a campus road.
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Spacenerd19 @spacenerd19.bsky.social · 18/04/2026
After dark
Dark sky shot with many many stars visible
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🌱Green Grandma 🐝 @grngma.bsky.social · 13/04/2026
I normally don’t post my art (mosaics, stained glass and watercolor). But this piece was made for my husband who is visually impaired. This is a mosaic tactile piece called “Looking Up”. He loves touching redwoods so now he can go get a feel of glass bark, when we are not actually in a forest.
Photo of glass mosaic of redwood treeSide view of photo of glass mosaic of redwood treePhoto of glass mosaic of redwood tree
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Timothy Martin @treephys.bsky.social · 09/04/2026
Hummingbirds are jerks. Sound up for the full violent effect.
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🌴 Scott Zona, Ph.D. 🌴 @scottzona.bsky.social · 09/03/2026
Not all seeds have endosperm as their storage tissue. Some seeds store the energy needed for germination in the embryo’s cotyledons. You know peanuts: the 2 halves are the 2 cotyledons. The embryonic root & shoot are the little structures at the base. #cotyledon #Fabaceae #Botany 🌾🧪🌱
Photo of a handful of roasted, shelled peanuts in the palm of a hand. Some are split into two halves (the cotyledons).
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Devang Mehta🌱🧬 @mehta-lab.com · 25/02/2026
Reading one of the first publications documenting circadian rhythms in humans and it’s essentially two professors torturing an assistant prof. so i guess not much has changed in academia in 130 years 🙃
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Timothy Martin @treephys.bsky.social · 17/02/2026
The University of Florida's School of Forest, Fisheries, and Geomatics Sciences is looking for a Forest Hydrologist. This is a 9-month, tenure-track, 70% Research / 30% Teaching appointment.
Manatees in the clear water of a springfed stream in Florida.
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Timothy Martin @treephys.bsky.social · 16/02/2026
Germinating wiregrass (Aristida beyrichiana) seed.
germinating wiregrass seed with scale
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Hugh Jones @hbsj.bsky.social · 16/02/2026
Here's a #HigherEducationPostcard of @aucklanduni.bsky.social - also known as Waipapa Taumata Rau in the Maori language If you like this image, please repost it - remember, BlueSky has #NoAlgorithm
An old picture postcard showing the clock-tower at the University of Auckland. The image shows a white stone octagonal tower with clocks on alternate faces; the stone is carved into interesting patters,. There a very blue sky and a tree in full lea. Printed at the foot of the card is "Glockenturm der Universitat von Auckland"
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Jörg-Peter Schnitzler @jpschnitzler.net · 12/02/2026
#ForestFriday A sunny day in the rain forests at Hoh River. #photography #trees #PNW
Wett temperate rainforests in Olympic National Park.
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Andrew Hipp @andrewlhipp.bsky.social · 06/02/2026
Lovely Quercus rugosa. North of Oaxaca, 10 Oct 2025.
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@macro_action @birdzandbees.bsky.social · 03/02/2026
To catch a King. Om1 mkii and 50-200mm + mc14 teleconverter youtu.be/QOiHR5uwzLw?... SS1/6400 F4 ISO640
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Timothy Martin @treephys.bsky.social · 01/02/2026
Snow flurry in Gainesville, Florida this afternoon.
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Timothy Martin @treephys.bsky.social · 10/01/2026
Manatee mama and baby in the run at Blue Springs State Park in Volusia County, Florida. The sign at the entrance indicated that over 450 manatees were in the spring and run that day.
Manatee mother and baby in a spring
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Timothy Martin @treephys.bsky.social · 09/01/2026
Loblolly pine (*Pinus taeda*) cones. 15-year-old tree in an experiment in north Florida.
Loblolly pine cones.Loblolly pine cones on a felled tree.
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🌾 Dr. Liz Anna Kozik 🌾 @chaseprairie.bsky.social · 30/12/2025
I've been trying to catch a kingfisher, but somebody else showed up by the river today
a bald eagle flying through the snowa bald eagle flying through the snow
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James ⛰️🌾🇵🇸 @plantbard.bsky.social · 25/12/2025
Views from Bishop
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Association for Fire Ecology @afe-fireecology.bsky.social · 23/12/2025
Congratulations to the 2025 AFE Award Winners! 🎉 Dr. Gavin Jones was awarded the Early Career Award and Dr. Heather Alexander was awarded the Distinguished Leader Award 🔥Read more here: fireecology.org/news/award-winners-…
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Orcasketcher 🇺🇦 @orcasketcher.bsky.social · 08/10/2025
#InkTober2025 Day 8: Reckless. Was planning to draw an eloborate scene from the time when birds ate horses. But it was one of those days and I’m glad I at least got this guy on paper, Terrorbird Titanis walleri. Based on Blue Rhino Studio’s amazing diorama, brushpen with Copic markers.
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William Hammond @wmhammond.bsky.social · 23/11/2025
The taxodium were really looking great just downriver of Yankeetown this weekend, too!
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Timothy Martin @treephys.bsky.social · 23/11/2025
Huge baldcypress (*Taxodium distichum*) doing its fall thing in northern Florida.
Baldcypress crown in fall color.
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Timothy Martin @treephys.bsky.social · 15/10/2025
Fog in the flatwoods.
Fog and sun in forest
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Timothy Martin @treephys.bsky.social · 19/09/2025
Hitchhiker on one of the lab plants this morning.
Top of a pine seedling with a small snake among the needles, looking at the camera.
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Timothy Martin @treephys.bsky.social · 12/09/2025
Can't get enough of these fox squirrels.
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Timothy Martin @treephys.bsky.social · 27/08/2025
8 weeks post-fire, longleaf pine / wiregrass, north Florida.
Three deer look at the camera while standing in green grass underneath a pine overstory.
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Timothy Martin @treephys.bsky.social · 21/08/2025
1 minute time lapse of a-ci curve measurement on wiregrass (*Aristida beyrichiana*) in north Florida.
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Timothy Martin @treephys.bsky.social · 01/08/2025
Rainbow river, Florida.
Kayaks, river, and clouds.
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Timothy Martin @treephys.bsky.social · 30/07/2025
Students in my summer natural resources class with the Florida champion longleaf pine (*Pinus palustris*). On private property near Newberry, Florida. Students choose from field trips focused on private land management, ecosystem services, invasive species management, and ecosystem restoration.
A group of people standing at the base of a large longleaf pine tree.
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Timothy Martin @treephys.bsky.social · 24/07/2025
A largish prey animal inside a larger diamondback rattlesnake. North Florida flatwoods.
Large diamondback rattlesnake obviously swollen from a recent meal.
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Timothy Martin @treephys.bsky.social · 23/07/2025
Find the fox squirrel.
Fox squirrel on longleaf pine tree in northern Florida.
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Timothy Martin @treephys.bsky.social · 22/07/2025
Nice!
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Fernando Ojeda @ojedacopete.bsky.social · 10/07/2025
Drosophyllum plants with leaf-traps fully covered with mucilage in a summer day (10 july) on bare, dry soils. How do they manage? We’re working on it.
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Timothy Martin @treephys.bsky.social · 10/07/2025
Longleaf pine (*P. palustris*) / slash pine (*P. elliottii*) stand on a spodosol in N. Florida. Understory primarily wiregrass (*Aristida beyrichiana*), saw palmetto (*Serenoa repens*), gallberry (*Ilex glabra*). Prescribed fire every other year, it will burn again this summer.
Pine stand
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🌴 Scott Zona, Ph.D. 🌴 @scottzona.bsky.social · 09/07/2025
I mentioned naval stores last week. Here’s another industrial use. Subfossilized resin from Agathis trees (#Araucariaceae) in New Zealand was prized for varnishes. Gum-diggers excavated tons of the stuff. 📷: An Old Gum Digger of Houhora, North Auckland, Archives of NZ CCBY2 #resin #Botany 🌾🧪🌱
Vintage black and white photo of an older man sitting outside a small wooden shack. Around him are the tools of his trade (spade, digging rod) and a box of lumpy resin.
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foresterbob @foresterbob.bsky.social · 04/07/2025
Today's forestry pic (running late), Sitka spruce trees on the Olympic Peninsula. #forestry #trees #nature #washington #olympic
A thick grove of tall spruce trees in the late afternoon sun. Ground cover is mainly ferns and other low vegetation.
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Timothy Martin @treephys.bsky.social · 22/06/2025
Scallop eyeing me after being pulled out of the Gulf of Mexico.
Open scallop with blue eyes located along the edges of its shell.
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Timothy Martin @treephys.bsky.social · 18/06/2025
About 30 minutes post- prescribed fire. Longleaf pine (Pinus palustris) in northern Florida.
Forest with burnt understory and smoke in background.
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William Hammond @wmhammond.bsky.social · 12/06/2025
If you're waiting on a reply, a peer review, or other effort from me--please be patient. I urgently left to document a developing forest die-off event more intense than any I've seen. No obvious biotic agents, dead & dying include multiple Pinus & Juniperus, many Quercus, & shrubs. #WhatKillsTrees
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Timothy Martin @treephys.bsky.social · 15/06/2025
Subterranean holiday: Mammoth Cave National Park, Kentucky.
Large cavern with people for scale.
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Timothy Martin @treephys.bsky.social · 26/05/2025
Candyroot,*Polygala nana*. Northern Florida flatwoods. Thanks to @ecologyonfire.bsky.social for ID. If it doesn't have bark, I'm clueless.
Yellowish orange flower of candyroot plant.
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Timothy Martin @treephys.bsky.social · 24/05/2025
I was surprised to find that a mountain laurel grows in Florida flatwoods, definitely NOT in the mountains! *Kalmia hirsuta*, hairy mountain-laurel.
Pink hairy mountain laurel flowers.
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Matt Higgs @theofficialmatt.bsky.social · 18/05/2025
Quite a few hummingbirds this year. A male has been busy trying to win over a lady friend, while he drives off the other two or three males that try and visit the feeder. It keeps him very busy!
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Timothy Martin @treephys.bsky.social · 08/05/2025
Attended concert 2.5 hours away from campus with a colleague, opening act was introduced as being from Gainesville. Thought I recognized bassist, turns out she was one of our students. Small world!
The band "Prizilla" performing on stage at Tuffy's Music Box in Sanford, Florida.
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Sally Aitken 🇨🇦 @sallyaitken.bsky.social · 08/05/2025
Great news - we will be searching for a tree physiologist (tenure track) to join the Department of Forest and Conservation Sciences, UBC Forestry, later this year. Stay tuned! (Please share.)
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