Profile avatar
ericrlarson.bsky.social
Associate professor in freshwater ecology, University of Illinois at Urbana-Champaign. Crayfish, invasive species, environmental DNA, and more. https://publish.illinois.edu/erlarson/
83 posts 2,288 followers 4,339 following
Regular Contributor
Active Commenter
Posts 24 Comments 26

Enjoyed this opportunity to talk about our newly described Pacifastacus crayfishes from western North America yesterday

submitted 4 days ago • 0 comments

Not a bad conference location when you can encounter a manatee just down the road from the convention center #2025SFS

submitted 20 days ago • 1 comment

Visiting a new place (San Juan, Puerto Rico) for my favorite conference (Society for Freshwater Science) #2025SFS

submitted 21 days ago • 0 comments

US conservation science is at serious risk. Join a virtual rally May 22 (12–1pm ET) to defend the USGS Ecosystems Mission Area—vital for tracking wildlife, disease, ecosystems & biodiversity. Featuring Drew Lanham & Kenn Kaufman. It’s free, it’s virtual, it’s vital. www.mobilize.us/nwf/event/79...

submitted 23 days ago • 0 comments

BioTime v2 is out!!🚨 - Explore the largest #database of #biodiversity time-series studies in the world. Now with more studies🗄️🔍👩‍💻, more species 🌱🦎🦇🐟🌳🐜🐚🪸🐀, more locations 🌐…just more! onlinelibrary.wiley.com/doi/10.1111/... Free to download, free to use! #BioTime #Macroecology #GlobalChange

submitted 25 days ago • 1 comment

The definitive work on Chicago area fishes is out, my Sunday column. chicago.suntimes.com/outdoors/202...

submitted 30 days ago • 2 comments

This work originated, 18 years ago, with an NSF East Asia and Pacific Summer Institute (EAPSI) fellowship when I was a PhD student. EAPSI was a small award ($5k) to foster international collaborations, that involved spending 10 weeks in a host country with a mentor. #WithoutNSF #SaveNSF

submitted 30 days ago • 2 comments

The result of nearly two decades of work, my coauthors and I have just described two new crayfish species from western North America: introducing the Misfortunate Crayfish and Okanagan Crayfish (doi.org/10.11646/zoo...). More to follow soon, but it should be open access - message if you need a PDF.

submitted 31 days ago • 5 comments

It is hard to imagine a world without the USGS Ecosystems Mission, the bird banding lab, the Coop Unit program, etc. but apparently that is what America voted for and what this administration plans to do: wildlife.org/usgs-cuts-wo...

submitted 36 days ago • 0 comments

The first paper from my PhD is now out in @aslo.org Limnology and Oceanography Letters! We used nine years of daily temp and chl data from Peter, Paul, and Tuesday Lakes to show that aquatic heatwaves increased surface chlorophyll concentrations during 24 out of 29 events. doi.org/10.1002/lol2...

submitted 38 days ago • 2 comments

Sunrise on the Sangamon River, Illinois

submitted 74 days ago • 2 comments

Just stumbled across this, another solid paper from the Kelly lab! Great to see work like this on making eDNA interpretation more accessible to end-users besjournals.onlinelibrary.wiley.com/doi/10.1111/...

submitted 74 days ago • 0 comments

New freshwater #crayfish species from northern Tasmania! Engaeus excavator (Richardson 2025). It excavates very deep burrows (>2 m) in clay soils. Called “excavator”, because of its burrowing ability and the requirement to survey with an excavator!

submitted 89 days ago • 1 comment

Are crayfish native to upper Columbia River tributaries of the United States? Hamp Kennedy and Susie Adams of the US Forest Service apply primary historical sources and indigenous knowledge to cryptogenic species in a new paper at WIREs Water: wires.onlinelibrary.wiley.com/doi/full/10....

submitted 95 days ago • 0 comments

Hey C-U folks: it's Orange and Blue week at UIUC, and you can support a huge number of great initiatives on campus. I'm partial to the Writers Workshop (payment.giving.illinois.edu/schools/Univ...), but all campaigns here: payment.giving.illinois.edu/orange-and-b....

submitted 96 days ago • 0 comments

This week is #InvasiveSpeciesWeek! It’s a little late in the week but I will be running a sale on my invasive species sticker until next Thursday! #InvasiveSpecies #Conservation #Ecology 👩🏻‍🔬🌿🌎

submitted 101 days ago • 1 comment

Please help spread the word. Open tech position. My lab at Loyola University Chicago. www.careers.luc.edu/postings/31037 A project to improve eDNA resources and use eDNA to study fish diversity in Illinois's Fox River. @danielbolnick.bsky.social @ambikamath.bsky.social @ericrlarson.bsky.social

submitted 101 days ago • 0 comments

For the right person, this is a unicorn dream job. 🧪🌎 www.linkedin.com/posts/north-...

submitted 102 days ago • 3 comments

Can a new DNA test save the world’s rarest turtle?

submitted 103 days ago • 1 comment

We're hiring! Come work at UIUC! Assistant Professor in Molecular Epidemiology Tenure-track, 9 month position Closing date March 21 illinois.csod.com/ux/ats/caree...

submitted 109 days ago • 1 comment

It has been cold in Illinois the last few weeks, but that has kept one of our study sites awfully pretty

submitted 134 days ago • 2 comments

Deleting old tweets, and this came up. I forgot about it!! Illinois, Michigan, Indiana, & Wisconsin pawpaw presence by county (green), observations (green dots), and the lovely butterfly they are exclusively host to: zebra swallowtail presence (pink), and zebra swallowtail observations (pink dot)

submitted 137 days ago • 3 comments

Teachers! IL-IN Sea Grant is looking to understand the use of live crayfish in classroom settings. If you are (or know) a science teacher in grades 3-12 in the #GreatLakes region who has used live crayfish in the classroom, we'd like to chat! Interest form: purdue.ca1.qualtrics.com/jfe/form/SV_...

submitted 138 days ago • 2 comments

It IS the Year of the Snake, after all… onlinelibrary.wiley.com/doi/full/10....

submitted 152 days ago • 0 comments