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Christian John

@jepsonnomad.bsky.social
4.1K followers 1.3K following 85 posts

Spatial ecology, seasonality, climate change, migration, and remote sensing. From snow, plants, and ungulates, to rain, humans, and coral reefs. Postdoc in the ‘Pile at UCSB. scholar.google.com/citations?hl=en&…

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Reposted by Christian John
Edward R. Ivimey-Cook @eivimeycook.bsky.social · 13/03/2026
🧵 New paper out today in @peercommunityin.bsky.social Journal! @joelpick.bsky.social et al. introduce the first standardised guidelines for data & code quality control in #ecology & #evolutionarybiology, on behalf of @sortee.bsky.social 🔓 doi.org/10.24072/pcj... #OpenScience #EEB [1/5]
doi.org
The SORTEE guidelines for data and code quality control in ecology and evolutionary biology
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Reposted by Christian John
Christian John @jepsonnomad.bsky.social · 08/12/2025
This was such a cool project to be a part of! We used ML models to build a high-res (1.4m) land cover map, and combined terrain+weather data w/ algae+water samples from >200 lagoon sites over 4 years to understand connections between land use, precipitation, water quality, and microbial communities.
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 09/12/2025
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students. I will record lectures & all will be found at this link: github.com/rmcelreath/s...
course schedule as a table. Available at the link in the post.
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Christian John @jepsonnomad.bsky.social · 08/12/2025
These findings emphasize the importance of land-sea connections in shaping the quality of waters that sustain life, restore spirits, and protect communities. From the tropics to the poles, impacts of activities on land eventually make their way to the ocean - and it's up to us to mitigate them.
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Christian John @jepsonnomad.bsky.social · 08/12/2025
Planktonic microbial communities (esp. those close to shore) were also affected by terrestrial stressors, and among nearshore sites, those with the most nutrient enrichment had microbial communities that were the most unique from more offshore lagoon sites.
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Christian John @jepsonnomad.bsky.social · 08/12/2025
We found that precipitation plays a dynamic role in short- (days) and long-term (weeks-to-months) nutrient enrichment but that land cover is an important driver of nutrients regardless of the time-scale of precipitation. Water column fDOM indicates nutrients are coming at least in part from land.
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Christian John @jepsonnomad.bsky.social · 08/12/2025
This was such a cool project to be a part of! We used ML models to build a high-res (1.4m) land cover map, and combined terrain+weather data w/ algae+water samples from >200 lagoon sites over 4 years to understand connections between land use, precipitation, water quality, and microbial communities.
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Christian John @jepsonnomad.bsky.social · 08/09/2025
Smoke pours over Little Lakes Valley at sunset; view from Morgan Pass (Saturday night). The Garnet Fire is about 40 miles away but prevailing winds bring poor air quality to the High Sierra. #GarnetFire #CAfire #CAwx
Smoky skies over Little Lakes Valley, downwind of the Garnet Fire
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Reposted by Christian John
EcoEvoRxiv @ecoevorxiv.bsky.social · 17/08/2025
The SORTEE Guidelines for Data and Code Quality Control in Ecology and Evolutionary Biology doi.org/10.32942/X24...
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Reposted by Christian John
Joel Pick @joelpick.bsky.social · 15/08/2025
🚨Introducing the @sortee.bsky.social Guidelines for Data and Code Quality Control in Ecology and Evolutionary Biology🚨 doi.org/10.32942/X24... Increasingly E&E journals are recruiting data editors. We provide standardised guidelines for journals with data editors and those wanting to recruit them 🧵
doi.org
The SORTEE Guidelines for Data and Code Quality Control in Ecology and Evolutionary Biology
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Reposted by Christian John
Edward R. Ivimey-Cook @eivimeycook.bsky.social · 02/08/2025
🎉New preprint! "TADA! Simple guidelines to improve code sharing" tinyurl.com/8rmnwjrk We present simple guidelines to help researchers of all coding levels improve the transparency and reproducibility of their analytical code, TADA! Transferable, Accessible, Documented, Annotated.
ecoevorxiv.org
TADA! Simple guidelines to improve code sharing
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Reposted by Christian John
Jacquelyn Gill @jacquelyngill.bsky.social · 30/07/2025
Are you an early-career biologist or ecologist who would benefit from an invited seminar? Would you like to come to UMaine next fall or spring to give a talk? Leave a brief comment with some info about what you do. I'm co-hosting our seminar series again, and am filling out our rosters.
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Christian John @jepsonnomad.bsky.social · 31/07/2025
So cool to see all the awesome work here in the comments! I’d be interested too. I ask a variety of landscape questions related to climate and land use change, spanning arctic plant phenology, alpine ungulate migration, and tropical lagoon biogeochemistry. Field work, remote sensing, & rstats :)
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Reposted by Christian John
bioRxiv Ecology @biorxiv-ecology.bsky.social · 17/06/2025
Terrigenous inputs link nutrient dynamics to microbial communities in a tropical lagoon www.biorxiv.org/content/10.1101/202…
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Christian John @jepsonnomad.bsky.social · 19/04/2025
I’ve noticed that when pasting rstudio auto indents code and the first cmd-z unindents code and the second unpastes it on a Mac. Maybe related to that?
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Christian John @jepsonnomad.bsky.social · 16/03/2025
Done!
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Reposted by Christian John
Chhaya Werner, PhD @restoration.bsky.social · 11/03/2025
Wrapping up a quarter-long Intro to Scientific Computing class -- we've had a blast! So grateful for @allisonhorst.bsky.social amazingly joyful illustrations and @uslter.bsky.social LTER datasampler package of simplified environmental datasets for teaching and learning 🧪🌎🌱⌨️
Cute monsters in witches hats add code and field notes to a bubbling cauldron, set along a picturesque mountain streamIllustrated representations of different data sets in the package fill a "box," including a buffalo, trout, pika, fiddler crab, maple seedling, snowfall, and hurricane
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Christian John @jepsonnomad.bsky.social · 09/03/2025
Amplexus!!!
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Christian John @jepsonnomad.bsky.social · 03/01/2025
Done!
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Christian John @jepsonnomad.bsky.social · 03/01/2025
Great list! Would love to get on this if possible
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Reposted by Christian John
Jon Kuntz, PhD 🦈 @sharkeye.bsky.social · 17/12/2024
My first first-author paper was published this morning! Did you know eye lenses grow in layers throughout life and can be analyzed to study movement and foraging ecology. But eye lenses differ in bio molecular composition across fish taxa, especially for sharks! 🧪🌎🦑 link.springer.com/article/10.1...
link.springer.com
Investigating eye lens composition for stable isotope analysis in fishes: a comparison between Chondrichthyes and Actinopterygii - Environmental Biology of Fishes
Life history ecology provides a framework for understanding the complex interactions between organisms and their environments but is challenging to resolve for long-lived and migratory species. In fis...
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SORTEE @sortee.bsky.social · 23/12/2024
Happy holidays and happy end of the year to all of you. Thank you for making 2024 a wonderful and exciting year for our society. Let's continue working towards Open, Reliable, and Transparent Ecology and Evolutionary Biology in 2025. Join us at: sortee.org/join
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Christian John @jepsonnomad.bsky.social · 16/12/2024
You got it!
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Christian John @jepsonnomad.bsky.social · 16/12/2024
Oh my bad I thought you meant like pull lever manual haha
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Christian John @jepsonnomad.bsky.social · 15/12/2024
Juras seem pretty pricey, so I’m assuming budget is a little flexible? I’ve really enjoyed my breville barista express but it’s a bit more than that delonghi option. Had it for about a year now and it’s been good for a house of 2 incl 1 covfefe fiend
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Christian John @jepsonnomad.bsky.social · 12/12/2024
There are for you!
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Christian John @jepsonnomad.bsky.social · 11/12/2024
absolutely!
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Christian John @jepsonnomad.bsky.social · 11/12/2024
sure thing!
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Christian John @jepsonnomad.bsky.social · 11/12/2024
added!
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Christian John @jepsonnomad.bsky.social · 06/12/2024
I can’t dm you :( but am volunteering on the sortee advocacy committee starting 2025!
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Christian John @jepsonnomad.bsky.social · 06/12/2024
Heyo! Tracking plant phenology with time-lapse cameras. <3 monitoring
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Christian John @jepsonnomad.bsky.social · 05/12/2024
nice, thanks for all the suggestions!!!
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Christian John @jepsonnomad.bsky.social · 05/12/2024
done!
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Christian John @jepsonnomad.bsky.social · 05/12/2024
added!
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Megan S. Reich @megansreich.bsky.social · 03/12/2024
Super stoked to share our latest research on the migratory patterns of painted lady butterflies across the Sahara! 🦋🏜️ www.cell.com/iscience/ful...
cell.com
Trans-Saharan migratory patterns in Vanessa cardui and evidence for a southward leapfrog migration
Chemistry; Nature conservation; Ecology; Entomology
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Christian John @jepsonnomad.bsky.social · 02/12/2024
Great list! Would love to be added
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Abby (she/her) @abigailthiemkey.bsky.social · 27/11/2024
I made one! I’ve realized when going to conferences that graduate students and early career professionals in the wildlife world are constantly communicating and will be working together later down the road. LMK if you want to be added, I def missed folks! go.bsky.app/FFFHs9U
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Christian John @jepsonnomad.bsky.social · 01/12/2024
Added!
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Benjamin Nowak @bjnnowak.bsky.social · 01/12/2024
Sharing some #dataviz reflections I've had to go from the classic choropleth map on the left to the map on the right [...]
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Christian John @jepsonnomad.bsky.social · 30/11/2024
Added!
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Christian John @jepsonnomad.bsky.social · 30/11/2024
Done!
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Christian John @jepsonnomad.bsky.social · 30/11/2024
Added!
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Christian John @jepsonnomad.bsky.social · 30/11/2024
Added!
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Christian John @jepsonnomad.bsky.social · 26/11/2024
You got it!
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BWEEMS @official-bweems.bsky.social · 25/11/2024
Hi Bluesky! We are BWEEMS, Black Women in Ecology, Evolution and Marine Science. A non-profit dedicated to amplifying and supporting Black women in EEMS spaces! It's nice to be here! 🐟 🪴 🐊 www.bweems.org
bweems.org
Black Women in Ecology, Evolution, and Marine Science
BWEEMS is a global network of Black Women driving innovation in ecology, evolution, and marine science despite being historically overlooked and isolated in the field.
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Christian John @jepsonnomad.bsky.social · 26/11/2024
Would love to get on this list! Also a plug for @juliannarenzi.bsky.social
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Christian John @jepsonnomad.bsky.social · 25/11/2024
Added!
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Christian John @jepsonnomad.bsky.social · 25/11/2024
Added!
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Christian John @jepsonnomad.bsky.social · 24/11/2024
Heh heh heh
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