John L Field
@johnlfield.bsky.social
130 followers 310 following 9 posts
Researching bioenergy, soil carbon & land-based mitigation. NCA5 author, Colorado State U. Natural Resource Ecology Lab alum. he/him
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Reposted by John L Field
angierasmussen.bsky.social
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
Reposted by John L Field
yalecncc.bsky.social
📢📢📢 The application window is now open for YCNCC's Fall 2025 Postdoctoral Fellowship call. Details and application via the below link. We will start reviewing applications after 12/1. Please share widely!! naturalcarboncapture.yale.edu/opportunitie...
Reposted by John L Field
rahmstorf.bsky.social
Excellent, well-informed new podcast! Like a ship entering a storm, we’re now entering the overshoot - a world above 1.5 degrees C #globalwarming. This requires a whole new mindset,
explored by Laurie Laybourn.
overshootpod.bsky.social
Overshoot Episode 1: Uncharted Territory

If the world didn’t win, has it lost?

We meet the underdog diplomats who helped the world set the 1.5°C goal, and the champion sailors who can help us set a course for navigating what comes next

Listen to episode one now: open.spotify.com/episode/1bJl...
PART 1: Uncharted Territory
open.spotify.com
Reposted by John L Field
phillewis.bsky.social
Jane Goodall, ethologist and conservationist, has died. She was 91
Reposted by John L Field
theresalaverty.bsky.social
Reminder: two more days to apply for this opportunity!
theresalaverty.bsky.social
Do you like acoustic data, community ecology, and desert oases? Apply for a PhD in my lab to investigate the role of ephemeral water sources (i.e., playa lakes and tinajas) in structuring desert bat (and maybe bird) communities. Visit lavertylab.org/join-the-lab for more. Applications due October 1
Advertisement for a PhD assistantship in the Laverty Lab on bats, birds, and the role of ephemeral water sources. Applications are due 1 October 2025. Visit https://lavertylab.org/join-the-lab for more information A playa lake at the Jornada Basin Long-Term Ecological Research site just north of Las Cruces (New Mexico). Photo by: Wiebke Boeing. A tinaja in Organ Pipe Cactus National Monument (Arizona) with a mist net positioned along the shore in front of it
Reposted by John L Field
brookebosborne.bsky.social
Yessss new paper is OUT! Scott Ferrenberg led this effort to tease apart "nurse plant" effects in the Chihuahuan Desert.

Spoiler alert: don't underestimate the power of a little shade in arid systems

@scottferrenberg.bsky.social

rdcu.be/eH1O8
Quantifying potential abiotic drivers of the ‘nurse plant effect’ in two dominant shrub species of the northern Chihuahuan Desert
rdcu.be
johnlfield.bsky.social
High-level conclusion: the environmental footprint of poplar-derived cellulosic ethanol production is much more sensitive to poplar yield than it is to poplar biomass quality (sugar content).

Similar what we concluded previously for switchgrass— doi.org/10.1021/acss...
Reposted by John L Field
katherinesiegel.bsky.social
You still have 5 days to apply for this awesome postdoc opportunity in the Environmental Data Science Innovation & Impact Lab at the University of Colorado-Boulder! This could be your backyard!
Image of five slanted rock formations (called the Flatirons) in the snow on a sunny day. There is a trail through the snow leading away towards the rock formations, which rise above some trees.
Reposted by John L Field
theresalaverty.bsky.social
Do you like acoustic data, community ecology, and desert oases? Apply for a PhD in my lab to investigate the role of ephemeral water sources (i.e., playa lakes and tinajas) in structuring desert bat (and maybe bird) communities. Visit lavertylab.org/join-the-lab for more. Applications due October 1
Advertisement for a PhD assistantship in the Laverty Lab on bats, birds, and the role of ephemeral water sources. Applications are due 1 October 2025. Visit https://lavertylab.org/join-the-lab for more information A playa lake at the Jornada Basin Long-Term Ecological Research site just north of Las Cruces (New Mexico). Photo by: Wiebke Boeing. A tinaja in Organ Pipe Cactus National Monument (Arizona) with a mist net positioned along the shore in front of it
Reposted by John L Field
globalchangebio.bsky.social
Which Plant Traits Increase Soil Carbon Sequestration? Empirical Evidence From a Long‐Term Poplar Genetic Diversity Trial

🔗 buff.ly/Esj0c1H
@johnlfield.bsky.social
johnlfield.bsky.social
Biologically diverse long-term common gardens can provide unique insights into plant controls on biogeochemical cycling, even if they weren't originally designed for it. We're now sampling 300+ other genotypes at this site, to try to resolve the controls and mechanisms affecting soil C & N cycling.
A researcher from the Center of Bioenergy Innovation sampling roots in between rows of tall black cottonwood trees at a common garden site near Clatskanie, Oregon.
johnlfield.bsky.social
We found:
- surface mineral-associated C stock differences under black cottonwood trees of different genotype.
- soil C associated more strongly with root elemental content than root lignin, N, or aboveground biomass.
- surface soil C stocks diverged by genotype at rates of 1–4 Mg/ha/y.
Reposted by John L Field
ohdearz.bsky.social
This will end the Hispanic-serving institution (HSI) program (schools with >25% Latino undergrads). For reference, current flagships that are HSIs include Arizona and Arizona State, 5 UCs (Irvine, Riverside, Merced, Santa Barbara, Santa Cruz), Rutgers, U New Mexico & NM State, UT Austin & UT El Paso
clancyny.bsky.social
Trump Aims to End Millions in Grants to Colleges With High Hispanic Populations

By Danielle Douglas-Gabriel

Gift link! wapo.st/4oTVanO (Yes, WaPo will ask for an email address.)
Reposted by John L Field
Reposted by John L Field
theresalaverty.bsky.social
Enjoying the cool weather in Baltimore this week for #ESA2025. Come hear about the long-distance movements of lesser long-nosed bats that my colleagues and I have been documenting this Thursday at 8:45am (COS 128 - Behavior: Migration and Movement 1). Please don't be afraid to say hi!
Reposted by John L Field
theresalaverty.bsky.social
Also if you're at #ESA2025 and interested in bats (maybe birds too), bioacoustics, arid landscapes, and thinking of a PhD, please say hello. I plan to recruit 1-2 grad students. Spring or fall 2026 start with a focus on desert waters or renewable energy. lavertylab.org

Happy to meet up!
The Laverty Lab
A conservation science and wildlife ecology lab at NMSU
lavertylab.org
Reposted by John L Field
hausfath.bsky.social
The EPA cited my paper in their argument against the endangerment finding today. However, their point is completely backwards: my paper actually supports the EPA's 2009 range of 1.8C to 4C warming by 2100. www.nature.com/artic...