iiinova — where your digital self keeps evolving

Julian Olden @oldenfish.bsky.social · 25/06/2026

The Society for Freshwater Science is pretty awesome. Here is how I recognize the greatest of this society and all its passionate members. Cheers 🍺 www.freshwater-science.org @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 25/06/2026

This was a real labor of love and one of the most exciting pieces of research I've worked on. A real infatuation that persists today! Stay tuned for more as I continue to explore our intriguing and complicated history with species that we consider "pests". Reach out with 🤔 or 🗣️ inquiries.

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Julian Olden @oldenfish.bsky.social · 25/06/2026

Species bounty programs, like bounty hunters charged to bring fugitives to justice, enlist the public to capture unwanted species through financial incentives. Check out our paper in npjBiodiversity, where we review the eight-century-long practice. @natureportfolio.nature.com doi.org/10.1038/s441...

doi.org

Society’s struggle with unwanted species: what centuries of history reveal about species bounty programs - npj Biodiversity

npj Biodiversity - Society’s struggle with unwanted species: what centuries of history reveal about species bounty programs

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Julian Olden @oldenfish.bsky.social · 26/05/2026

Fun and reinvigorating times, Jono! Thanks for hanging out!

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Julian Olden @oldenfish.bsky.social · 21/05/2026

A huge thanks to the many folks who made the LeRoy Poff career celebration such a wonderful event. Special thanks to Chris Funk, Dave Lytle and Deb Finn. @streambug.bsky.social @jdtonkin.bsky.social @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 16/05/2026

Haha! Auction that raises $$ for students. Always a smartass Jeffery!

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Julian Olden @oldenfish.bsky.social · 16/05/2026

Gearing up for another fantastic SFS annual meeting! Just finished the beer cap art for the student auction. I’m stoked about it! Revealed on Monday night or early here if this post gets 75 likes! @sfs-src.bsky.social @freshwaterscience.bsky.social

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Julian Olden @oldenfish.bsky.social · 01/05/2026

Sounds like a perfect day to me!

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Julian Olden @oldenfish.bsky.social · 29/04/2026

Wow, this is utterly insane and really sad for those of us dedicated to 100% human-generated science.

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Julian Olden @oldenfish.bsky.social · 07/04/2026

This study offers strong evidence that a mechanism long established in small-scale analyses - namely, emergent aquatic insects fueling terrestrial predators - scales up to continental biodiversity patterns. Thus, protecting rivers is also a strategy for sustaining birds and their ecosystems.

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Julian Olden @oldenfish.bsky.social · 07/04/2026

The EPT association with aerial insectivorous birds remained robust after accounting for riparian covariates describing the extent of urban, agricultural and canopy cover that may influence the magnitude and availability of emergent insect prey to foraging birds.

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Julian Olden @oldenfish.bsky.social · 07/04/2026

Aerial insectivorous birds exhibit more than 3-fold higher prevalence at sites with high compared with low EPT (insect) richness. This linkage holds across river types describing hydrology, temperature & geomorphology, with the strongest gains occurring in rivers with low baseline bird prevalence.

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Julian Olden @oldenfish.bsky.social · 07/04/2026

We combined aquatic insect data from >140,000 river sites with over 83 million bird surveys from eBird. After accounting for spatiotemporal proximity & survey effort during the insect-emergence & bird-breeding period, the final dataset had 14,177 locations & over 2 million bird obs for 288 species.

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Julian Olden @oldenfish.bsky.social · 30/03/2026

Read your paper when it was published online early. Such a cool study! Congrats.

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Julian Olden @oldenfish.bsky.social · 25/02/2026

A piece we wrote for The Conversation that associated with our recent paper "Extreme events and river biodiversity under climate change" in Nature Reviews Biodiversity @jdtonkin.bsky.social @tdatry.bsky.social and others Read-only link: rdcu.be/e4Dkv doi.org/10.64628/AA....

doi.org

Extreme weather is transforming the world’s rivers. We need new ways to protect them

Rivers support billions of people but are among the least protected parts of nature. A major review shows what needs to be done as climate change accelerates.

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Julian Olden @oldenfish.bsky.social · 16/02/2026

Yep ... definitely not an outlier in my world either.

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Julian Olden @oldenfish.bsky.social · 05/02/2026

Super happy to have @ulaskimarta.bsky.social joining us at @uwsafs.bsky.social! Looking forward to working together!

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Julian Olden @oldenfish.bsky.social · 05/02/2026

Mismatches between invasive species policy, which relies on administrative borders, and scientific research conducted at ecological units complicate regulation, risk assessment, and biosecurity. Here we explore some solutions. www.nature.com/articles/s44...

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Reposted by Julian Olden

FieldNotes @fieldnotes-uw.bsky.social · 16/01/2026

Welcome the editors for FieldNotes 2026! pt. 1 We're so excited to introduce the editors of our editorial team! Stay tuned for the remaining editors and other updates!

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Julian Olden @oldenfish.bsky.social · 26/01/2026

‪Another wonderful CESAB FOOD-WEBS working group meeting in Montpellier! Super productive and creative time together. Funding: @frbiodiv.bsky.social

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Reposted by Julian Olden

Jeff Opperman @jjopperman.bsky.social · 22/01/2026

River need greater protection, but to date our methods for tracking protection status have been limited. In this post I describe a new method from @oldenfish.bsky.social @americanrivers.bsky.social and Conservation Science Partners - the Protected River Index www.forbes.com/sites/jeffop...

forbes.com

Improving How We Track Progress For River Protection

Rivers have relatively less protection than do land or oceans and we lack effective mechanisms for measuring protection. A new study offers an improved mechanism for tracking progress.

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Julian Olden @oldenfish.bsky.social · 13/01/2026

So glad that you investigated this issue! PISS is crappy, and it needs to be called out.

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Reposted by Julian Olden

American Rivers @americanrivers.bsky.social · 10/01/2026

🗣️ MAJOR ANNOUNCEMENT: Over 80% of our nation’s 4.4M miles of rivers aren’t adequately protected! Our brand new peer-reviewed research with Conservation Science Partners published in Nature Sustainability shows just how vulnerable our rivers are. ➡️ Learn more: www.americanrivers.org/npra-explore...

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Julian Olden @oldenfish.bsky.social · 09/01/2026

Expanding river-specific protections, such as new federal and state Wild and Scenic Rivers and Outstanding Resource Waters, would ensure effective, durable protection measures tailored to rivers.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

Individual states can promote river protection through new or strengthened riparian buffer legislation, administrative rules, or agricultural/forestry best practices. Protecting rivers flowing through private lands, such as those offered by easements or land trust acquisitions/agreements, is key.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

Federal public lands have an outsized role in protecting rivers nationwide, and multiple-use lands provide a major opportunity to scale protections; weakening or eliminating existing environmental policy mechanisms would undermine these safeguards.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

Protection often does not coincide with other conservation objectives, where only a small fraction of watersheds with high biodiversity, habitat intactness and importance to drinking water supply are adequately protected.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

Protection is overwhelmingly driven by land-based mechanisms, which are often spatially misaligned with hotspots of freshwater biodiversity and may inadequately safeguard rivers from upstream threats. Protection is also uneven across river types (intermittent rivers less protected) and geographies.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

America’s rivers are alarmingly under protected. Just over one-tenth (12%) of rivers in the contiguous United States and less than one-fifth (19%) nationwide are currently protected at a level deemed viable, while two-thirds remain entirely unprotected under the mechanisms assessed in this study.

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Julian Olden @oldenfish.bsky.social · 09/01/2026

National assessment of river protection in the U.S. Article: doi.org/10.1038/s418... Policy Brief: doi.org/10.1038/s418... Rivers Explorer: map.myriver.americanrivers.org Collaboration b/t American Rivers, Conservation Science Partners, Univ WA @americanrivers.bsky.social Thread 👇 | DM for PDF

Image of river protection status in the United States

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Reposted by Julian Olden

Chris Harrod @profchrisharrod.bsky.social · 15/12/2025

hot off the press! Led by the mighty Marie Perga, including many members of the Fooδ-webs team, and kindly funded by the Foundation for Research on Biodiversity/CESAB besjournals.onlinelibrary.wiley.com/doi/10.1111/...

besjournals.onlinelibrary.wiley.com

A global estimator of C and N isotope baselines for fresh waters

Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers'...

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Julian Olden @oldenfish.bsky.social · 19/12/2025

Unraveling multipredator impacts in salmon-bearing rivers using quantitative DNA metabarcoding. A wonderful collaboration with @jwinkfish.bsky.social. @uwsafs.bsky.social @uwenvironment.bsky.social @uwfreshwater.bsky.social 👇 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

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Julian Olden @oldenfish.bsky.social · 28/11/2025

I enjoyed your talk Miguel. It was early for me (6:30 am), but it was well worth it!

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Julian Olden @oldenfish.bsky.social · 25/11/2025

Nah ... I end up buying caps on eBay. I mostly use uncrimped caps (i.e., before they are used).

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Julian Olden @oldenfish.bsky.social · 24/11/2025

Late night, but there is no better feeling that having stable isotope samples all prepped! ⚛️🎉

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Julian Olden @oldenfish.bsky.social · 24/11/2025

Finally found some time to reconnect with my caps. Red swamp crayfish in all its glory. Adding it to my office wall! @newbelgium.bsky.social @pikebrewing.bsky.social

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Julian Olden @oldenfish.bsky.social · 21/11/2025

Sunrise from UW SAFS @uwsafs.bsky.social. Not a bad way to start the day! ☀️

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