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Dr.Kat Stewart

@ecoevoedna.bsky.social
862 followers 683 following 110 posts

Assistant Professor @Leiden University; #environmentalDNA #eDNA, #conservationgenetics, evolutionary ecology, #invasivespecies, hybridization, e3dna.com | editor @Oikos | editor @Evolutionary Ecology |

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Reposted by Dr.Kat Stewart
Dr Angel Borja @drangelborja.bsky.social · 21/07/2026
A new #GES4SEAS paper, from past year summer school has been published. It deals with #MachineLearning #eDNA and #CitizenScience for marine monitoring #MarineEcology #Research www.frontiersin.org/articles/10....
frontiersin.org
Frontiers | Machine learning, eDNA and citizen science in monitoring and assessing biodiversity and invasive alien species at sea
This research outlines the integration of machine learning, citizen science, environmental DNA (eDNA), and other emerging technologies to enhance marine biod...
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Reposted by Dr.Kat Stewart
Florian Altermatt @florianaltermatt.bsky.social · 17/07/2026
I am #hiring! In my group 📍Universität Zürich | University of Zurich & Eawag I have #two open #Postdoc #Positions, with application deadlines in early August 2026. 🧬 🦐 🐠🌐🌍 Here a quick reminder & 🧵with all details, thanks for 🔄 redistributing to interested candidates.
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Carmelo Fruciano @carmelofruciano.bsky.social · 15/07/2026
📢 We're hiring! A 1-year research fellowship in my lab @unict_it (in sunny Sicily 🌞🌊): #eDNA metabarcoding + #morphometrics/3D scanning to monitor invasive alien species. Broad search. Apply by 3 Aug. More details at www.fruciano.org/events/were-...
View of Mount Etna
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Reposted by Dr.Kat Stewart
Florian Altermatt @florianaltermatt.bsky.social · 11/07/2026
#Postdoc #Position opening up in my group: Developing Analytical #Pipelines and #Analyses to Survey #Invasive Alien #Species in Aquatic Systems using #eDNA (2 years) 🧬 📈 ❗ 🦐 🦀 🐠 🌍🌐❗ #JobOpening 🎯 apply.refline.ch/673277/1364/... 📍 Apply now & thx for spreading the word (deadline Aug 14th)
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Dr.Kat Stewart @ecoevoedna.bsky.social · 03/07/2026
Def worth a try. Plate covers are relatively cheap and also super easy for transport and sampling. Minor component of this paper, but still might be useful link.springer.com/article/10.1... Perhaps chat at global eDNA conference in Oct.
link.springer.com
Safeguarding Iguana diversity: enabling rapid and low-effort tracking of non-native iguanas through terrestrial eDNA innovations - Biological Invasions
Reptiles have among the highest extinction risk across terrestrial vertebrates, with habitat fragmentation, habitat destruction, and invasive alien species being the primary causes of reptile species ...
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Reposted by Dr.Kat Stewart
Physalia-courses@ONLINE @physaliacourses.bsky.social · 02/07/2026
🚨 New microgrant opportunity from @ednacollab.bsky.social Registration is now open for the next 2 weeks for our #eDNA with @nanoporetech.com workshop with @shump.bsky.social Don't miss this chance to receive support and join the training! Apply here: docs.google.com/forms/d/1Vnc...
docs.google.com
The eDNA Collaborative's 2026 Physalia Microgrant
Thank you for your interest in the eDNA Collaborative's 2026 Physalia Microgrant! This microgrant will be awarded in the form of an online course provided by Physalia Courses. Physalia provides scient...
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Dr.Kat Stewart @ecoevoedna.bsky.social · 03/07/2026
Very cool Matt! Reptiles are difficult beasts and require some creative thinking for sampling approaches. We trialed using pcr plate cover seals (ie sterilized tape) for iguanas and it seemed to work the best for detection.
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eDNAqua-Plan Project @ednaquaplan.bsky.social · 25/06/2026
🧬🌊 eDNAqua-Plan's recommendations for a federated system of taxonomically curated reference libraries A critical step towards scaling (e)DNA-based monitoring & research for supporting evidence-based policy. 🔗 Explore the recommendations: tinyurl.com/46tkrsx4 #eDNA #DNA #Biodiversity @ec.europa.eu
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Dr.Kat Stewart @ecoevoedna.bsky.social · 25/06/2026
Preach! 🙌
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Dr.Kat Stewart @ecoevoedna.bsky.social · 22/06/2026
💨Air doesn't just carry DNA—it carries location information. We show that simple wind data can help pinpoint where vertebrate airborne eDNA comes from, bringing us closer to biomonitoring from the air with spatial precision! onlinelibrary.wiley.com/doi/10.1002/... #eDNA #Conservation #congen
onlinelibrary.wiley.com
Local Transport of Vertebrate Airborne eDNA Is Captured by Wind‐Directed Catchment Area Models
This novel study models local airborne eDNA transport using wind-directed catchment models. Results show 100% of species detections within 100 m of samplers originate from predicted downwind catchmen...
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Reposted by Dr.Kat Stewart
Prof. Elizabeth Clare @profbatgirl.bsky.social · 11/06/2026
New paper from the lab on #eDNA sampling strategies for air. Well done Nina Garrett #womeninStem 🧪 . Sampling Intensity and Temporal Persistence of Airborne eDNA in Partially Enclosed Spaces - Garrett - 2026 - Environmental DNA - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Sampling Intensity and Temporal Persistence of Airborne eDNA in Partially Enclosed Spaces
The majority of species richness was detected using as little as four samplers in this enclosed space and the greater the number of sampling events, the fewer samplers were needed. eDNA also appeared...
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Reposted by Dr.Kat Stewart
Alex Fraik @akfraik.bsky.social · 14/05/2026
The US Forest Service National Genomics Center is hiring an eDNA lab technician! Come work with us on cool genetics projects in Missoula #ConsGen #eDNA
paycomonline.net
Environmental DNA Lab Technician
...
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Alex Fraik @akfraik.bsky.social · 20/05/2026
Another fisheries #consgen job alert! The Northern Gulf Institute at Mississippi State University is seeking a Postdoctoral Associate to lead the development and application of molecular assays to support fisheries and biodiversity monitoring #eDNA
explore.msujobs.msstate.edu
Careers | MSU Jobs
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Reposted by Dr.Kat Stewart
Heike Zimmermann @heikezimm.bsky.social · 04/05/2026
We are looking for a motivated student helper to join our international group at #GEUS, #Copenhagen Deadline 20.5.2026 Tasks: sample preparations, analysis of #climate #proxies, #eDNA and #ancientDNA, #microscopy, fieldwork prep… Please, spread the word!🦑 candidate.hr-manager.net/ApplicationI...
candidate.hr-manager.net
Studentermedhjælper – Arktisk klima- og havforskning
Vi søger en motiveret studentermedhjælper til at støtte forskningsaktiviteter i vores forskningsgruppe inden for arktisk klima og marine økosystemer ved De Nati
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Dr.Kat Stewart @ecoevoedna.bsky.social · 06/05/2026
Using a multi-marker approach, you look for gene flow signatures such as discordance among markers
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Dr.Kat Stewart @ecoevoedna.bsky.social · 04/05/2026
🔥Population genetic inferences from #eDNA going strong 💪: check out my lab's recent work on screening for hybrid zones using nuclear SNPs #conservationbiology onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Hybrid Horizons: Screening Hybridisation Through Nuclear Environmental DNA
Effective monitoring of hybrid zones is essential for understanding evolutionary dynamics and mitigating species loss caused by human-mediated hybridisation. Conventional methods rely on sampling num...
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The Mariani Lab @marianilab.bsky.social · 20/01/2026
Maybe there’s no better “natural #eDNA sampler” than a sponge. But here we show why #jellyfish maybe also deserve some consideration: link.springer.com/article/10.1... @craigwilding.bsky.social @ljmubiocon.bsky.social #OGS #Trieste #Miramare
Four species of jellyfish used to extract environmental DNA
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Amalia Mailli @amaliamailli.bsky.social · 20/01/2026
We are organising a great Summer School on eDNA and Invasive Species at NORD University in Bodø, Norway! Submissions are open, take a look below! #eDNA #InvasiveAlienSpecies #GuardIAS
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Reposted by Dr.Kat Stewart
Emilie A. Didaskalou @eadidaskalou.bsky.social · 22/12/2025
Proudly presenting the 1st chapter of my PhD as my 1st bluesky post!
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Dr.Kat Stewart @ecoevoedna.bsky.social · 20/12/2025
🔥 Hot off the press: ever wonder if you could get demographic info for natural pops with #eDNA #environmentalDNA? Well wonder no more! First proof of principle for sex-ratios coming to a computer screen near you: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Unlocking Demography: Developing an eDNA‐Based Toolkit to Measure Sex Ratios From Populations
Demographic information, such as sex ratios, is essential for understanding population dynamics and informing conservation strategies. Yet obtaining sex ratios in natural populations can be challengi....
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Dr.Kat Stewart @ecoevoedna.bsky.social · 10/11/2025
Submitting a symposia application for #eccb2026 on transdisciplinary applications of #eDNA research, focusing on stakeholder integration. If you’d like to present in this symposia and are already planning to attend, message me before Friday!
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Dr.Kat Stewart @ecoevoedna.bsky.social · 19/10/2025
Done, you’re in! 🤝
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Dr.Kat Stewart @ecoevoedna.bsky.social · 04/10/2025
Your wish is my command, good sir! 👍
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Dr.Kat Stewart @ecoevoedna.bsky.social · 17/09/2025
Your wish is my command, Lauren!
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Tim Adriaens @adriaenstim.bsky.social · 16/09/2025
SAVE THE DATE #Neobiota2026 is coming to Brussels Leave your contact details www.neobiota2026.org
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Dr.Kat Stewart @ecoevoedna.bsky.social · 15/09/2025
Come visit us at Leiden University for ECCB2026!
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Dr.Kat Stewart @ecoevoedna.bsky.social · 03/09/2025
You’re in!
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Reposted by Dr.Kat Stewart
Patrick Nichols @saltwaterpatrick.bsky.social · 25/08/2025
Can we circumvent the cumbersome filtration of #edna from seawater to detect rare taxa? Yes! Passively deploying simple cost-effective cotton membranes can, with trade-offs of course. @sednasociety.bsky.social doi.org/10.7717/peer...
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Dr.Kat Stewart @ecoevoedna.bsky.social · 22/08/2025
Ooooohhhh 😍
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Dr.Kat Stewart @ecoevoedna.bsky.social · 22/08/2025
A caulking gun might be your new best friend with those syringes. Your hands will thank me later
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Dr.Kat Stewart @ecoevoedna.bsky.social · 22/08/2025
Love me a good ol’ sankey!
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Dr Joanne Littlefair @jlittlefair.bsky.social · 01/08/2025
A great FAIR (Findable, Accessible, Interoperable, Resuseable) hosted by Miwa Takahashi of CSIRO, @lynseyrharper.bsky.social @nidunn.bsky.social last Friday. Recording great metadata for #eDNA studies, #futureproof
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Reposted by Dr.Kat Stewart
EuroMarine OYSTER @em-oyster.bsky.social · 29/07/2025
⛴️🌊OceanX is seeking a #post-doctoral associate in the field of marine #eDNA and meta #genomics ⏳unspecified deadline 👉More info: buff.ly/GXVsEfV
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Jonathan Tonkin @jdtonkin.bsky.social · 27/06/2025
And their ecological impacts are much more widespread and diverse than is often communicated. Here, I try to put the record straight. I do so while describing a recent paper of ours that introduces a new categorisation of 19 impacts types that invasive species have across ecological hierarchies.
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David Nogués Bravo @noguesbravo.bsky.social · 30/06/2025
Would you like to come to work with us here at @Macroecology ? The Center is opening six new positions! macroecology.ku.dk/people/posit...
macroecology.ku.dk
Open Positions
Positions and vacancies at the Center for Macroecology, Evolution and Climate
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Allan McDevitt @shrewgod.bsky.social · 24/06/2025
New paper out from our crew on using #eDNA to detect the pathogenic chytrid fungus (Bsal) and characterise the surrounding amphibian community from pond samples in the Netherlands. Small number of samples but highlights the potential of eDNA for routine monitoring of both. bioone.org/journals/jou...
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Javier Santoyo @jsantoyo.bsky.social · 03/06/2025
Shotgun sequencing of airborne eDNA achieves rapid assessment of whole biomes, population genetics and genomic variation. #eDNA #ShotgunSequencing #PopulationGenetics #GenomicVariation #Genomics #Bioinformatics @natecoevo.nature.com‬ 🧬 🖥️ www.nature.com/articles/s41...
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Dr.Kat Stewart @ecoevoedna.bsky.social · 05/06/2025
Nice one!
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Matthew A. Barnes @drbarnes.org · 04/06/2025
Proud of this new publication demonstrating #eDNA as a useful accessory to invasive species management in practice. In this case, we observed eDNA declines coinciding with community-led apple snail removal from an Austin, Texas pond. www.reabic.net/journals/mbi...
reabic.net
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Dr.Kat Stewart @ecoevoedna.bsky.social · 02/06/2025
🎇New paper alert GENETIC POLLUTION-caused by human-driven hybridization-is more widespread and dangerous than you think. With modern DNA tools, we can act BUT policy must catch up fast! Read more: link.springer.com/article/10.1... #conservation #biodiversity #biosecurity #conservationgenetics
link.springer.com
Scientists’ warning on genetic pollution - Discover Conservation
Genetic pollution (i.e. anthropogenic hybridization) is insidious; it is a worryingly common problem that should be taken more seriously. Advances in DNA sequencing technologies make it possible to ob...
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Reposted by Dr.Kat Stewart
Moler @envdna.bsky.social · 29/05/2025
Developing terrestrial environmental DNA sampling methods for detecting arboreal invasive reptiles: a case study of the green anole in the Ogasawara Island, Japan #eDNA #environmentalDNA www.biorxiv.org/content/10.1...
biorxiv.org
Developing terrestrial environmental DNA sampling methods for detecting arboreal invasive reptiles: a case study of the green anole in the Ogasawara Island, Japan
Early detection of invasive alien species is essential for preventing establishment and mitigating ecological impacts, particularly in island ecosystems harbouring evolutionarily isolated endemic spec...
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Dr.Kat Stewart @ecoevoedna.bsky.social · 15/05/2025
No problem Clare, you’ve been added as well! Enjoy
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Dr.Kat Stewart @ecoevoedna.bsky.social · 15/05/2025
You’re name has now been added, making the list even greater 💪
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Dr.Kat Stewart @ecoevoedna.bsky.social · 14/05/2025
Done! 🙌
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Roman Goergen @romangoergen.bsky.social · 09/05/2025
🦈 Offshore wind farms may offer safe zones for sharks & rays.🌍 Dutch researchers found eDNA of 5 species, incl. basking sharks, in turbine areas.🧪 Bans on bottom trawling could help marine life rebound.🌐 #Sharks #eDNA #Marinelife #Conservation #wildlife oceanographicmagazine.com/news/are-off...
oceanographicmagazine.com
Are offshore wind farms the next safe spaces for sharks and rays? - Oceanographic
New eDNA evidence has confirmed the presence of active shark and rays around Dutch offshore wind farms, posing an exciting new question.
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Dr.Kat Stewart @ecoevoedna.bsky.social · 06/05/2025
After 4 year as a subject editor for @oikosjournal.bsky.social I am stepping away to focus more on my students and teaching. It’s been fun and educational! I’d definitely recommend it. If anyone qualified in the #eDNA sphere is looking to be an editor, let me know and I can pass along your info.
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Holly Broadhurst @hollybroadhurst.bsky.social · 05/05/2025
Our review is finally here! We include all the terrestrial and semi-aquatic mammal-focused #eDNA and #iDNA studies available up to Jan 2025! It's amazing to see how far this field has come 🧬🦦
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Metabarcoding and Metagenomics @mbmg.pensoft.net · 02/05/2025
🧬 Calling all #eDNA and #EnvironmentalOmics enthusiasts! At the AquaEcOmics meeting, 35 international experts discussed forming a European Society for Environmental Omics (ESEO) to strengthen collaboration across the field. 🧵(1/4)
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Dr.Kat Stewart @ecoevoedna.bsky.social · 30/04/2025
We (many across NL) just received a large infrastructure grant to create a network of SMART aquatic research hubs. Worth €4.2 million, #eDNA will form a decent portion of this, bringing the Netherlands capacity for aquatic experimentation higher. www.universiteitleiden.nl/en/news/2025...
universiteitleiden.nl
Funding boost for the Living Lab and other outdoor laboratories
A consortium of research infrastructures focused on water quality has received €4.18 million in funding from the Dutch Research Council (NWO). This grant will support the transformation of outdoor lab...
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Dr.Kat Stewart @ecoevoedna.bsky.social · 29/04/2025
Interested in establishing a European Society for Environmental Omics? Let your voice be heard #eDNA folks!
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