Ellie Snyder

I'm looking for postdoc positions in freshwater biogeochemistry! Interested in any projects investigating nutrient and carbon cycling, phytoplankton coupling with dissolved organic matter cycling in human-altered landscapes, or hydrology and spatial modeling!

Wouldn’t it be kind of wild if someone actually pulled everything we know about what happens to eDNA between shedding and detection?
Decay, transport, microbes, temperature, rivers, oceans, all of it?!

We did that.

📄 Preprint link: www.researchsquare.com/article/rs-8...
🧬🔍🌊
#eDNA #MolecularEcology

A systematic review evaluating the performance of eDNA methods relative to conventional methods for biodiversity monitoring The rapid adoption of environmental DNA (eDNA) methods has drastically changed biodiversity monitoring efforts. It is often claimed that eDNA methods are more sensitive and efficient than conventiona...

Comparing innovative #eDNA technology with traditional ecology methods 🌍

#Ecology #Surveys #Biodiversity #Monitoring

nsojournals.onlinelibrary.wiley.com/doi/pdf/10.1...

#eDNA #metabarcoding #postdoc #genomics #aquaticecology #jobs #ecology

🚨 POSTDOC OPPORTUNITY @ CORNELL
Join our lab to push the frontier of DNA-based monitoring of aquatic ecosystems!

🔬 Metabarcoding + Metagenomics
🌊 Real-world monitoring impact
📍 Ithaca, NY | Start late summer 2025 (flexible)
📅 Apply by June 27

Full ad & details: www.therkildsenlab.org/join-us.html

This difference meant there was an increase in the proportion of the eDNA sample made up of small particles as we moved "downstream". More evidence that eDNA removal in streams is an interplay of physical and biotic factors. And this can be influenced by temp!

So what did we find?

At higher temps, small eDNA particles (0.2–1.0 μm), were removed faster than at lower temps, while removal rates were consistent across temps for larger eDNA particles (>1.0 μm).

Abagael Pruitt and Elise (Ellie) Snyder smiling for the camera while collecting an eDNA water sample from one of twenty-four indoor, recirculating mesocosms.

We conditioned these handy recirculating mesocosms (at #NotreDame) under a range of temperatures. Then we added #eDNA from from two fish species and and took H2O samples over time to measure removal rates for different eDNA sizes. SO to @abagaelpruitt.bsky.social letting me use her experiment setup!

Warming Increases Environmental DNA (eDNA) Removal Rates in Flowing Waters This study experimentally investigated how warmer water temperatures impact eDNA removal rates in flowing waters. Using recirculating mesocosms with varying water temperatures (20°C, 23°C, and 26°C) ...

New paper out today!!

We know warming speeds up eDNA removal in lakes and ponds, but what about streams and rivers where physical removal may obscure the impact of decay?
onlinelibrary.wiley.com/doi/10.1002/...

I’m defending next Thursday (March 27, 9am ET)! If you want the zoom link, let me know!

The SFS Early Career Committee invites all members to participate in a FREE lunchtime workshop at #2025SFS focused on recruitment. Are you looking for your next position? About to graduate? Join us to find your next science home. (1/2)

Comparing the Fate of eDNA by Particle Sizes and Molecule Lengths in Recirculating Streams The detection of environmental DNA (eDNA) has revolutionized aquatic species monitoring, yet interpreting eDNA data remains challenging due to gaps in our understanding of eDNA ecology (i.e., origin,...

New paper alert! 🚨- My final PhD chapter is finally out!

What happens to different eDNA components in water? 🌊💧

We tested particle size (small vs. large) and DNA molecule length (86 vs. 387 bp) in recirculating streams—and what we found might surprise you! 🧵👇

#eDNA #MolecularEcology
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