Dr.Kat Stewart
LightNews LightNews
banner
ecoevoedna.bsky.social
Dr.Kat Stewart
@ecoevoedna.bsky.social
840 followers 680 following 100 posts
Assistant Professor @Leiden University; #environmentalDNA #eDNA, #conservationgenetics, evolutionary ecology, #invasivespecies, hybridization, e3dna.com
| editor @Oikos | editor @Evolutionary Ecology |
Posts Replies Media Videos
Pinned
ecoevoedna.bsky.social
Dr.Kat Stewart @ecoevoedna.bsky.social · Nov 17
I started an #eDNA starter pack as one didn’t exist yet. Feel free to message me to get your name added. Open to all! go.bsky.app/U2vgV5Q
Reposted by Dr.Kat Stewart
marianilab.bsky.social
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
January 20, 2026 at 10:47 AM
Reposted by Dr.Kat Stewart
amaliamailli.bsky.social
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
guardias.bsky.social GuardIAS @guardias.bsky.social · Jan 14
Registration is open for GuardIAS Summer School 2026, with a focus on e-DNA and Invasive Species! 🌊

Explore the program and meet the trainers: guardias.eu/welcome-to-t...

Register here: docs.google.com/forms/d/e/1F...

#GuardIAS #InvasiveAlienSpecies #IAS #InvasiveSpecies #BioInvasions
January 20, 2026 at 12:49 PM
Reposted by Dr.Kat Stewart
eadidaskalou.bsky.social
Proudly presenting the 1st chapter of my PhD as my 1st bluesky post!
December 22, 2025 at 3:23 PM
ecoevoedna.bsky.social
🔥 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/...
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....
onlinelibrary.wiley.com
December 20, 2025 at 8:13 PM
ecoevoedna.bsky.social
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!
November 10, 2025 at 5:32 PM
Reposted by Dr.Kat Stewart
adriaenstim.bsky.social
SAVE THE DATE #Neobiota2026 is coming to Brussels Leave your contact details www.neobiota2026.org
September 16, 2025 at 7:08 AM
ecoevoedna.bsky.social
Come visit us at Leiden University for ECCB2026!
society4conbio.bsky.social Society for Conservation Biology @society4conbio.bsky.social · Sep 15
The 8th European Congress for Conservation Biology will take place in Leiden, NL! They will explore how #biodiversity can be safeguarded effectively in the long term. First call is open now! Check out: eccb26leiden.eu/calls/ for more info, we are looking forward to your contributions!
September 15, 2025 at 3:34 PM
Reposted by Dr.Kat Stewart
saltwaterpatrick.bsky.social
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...
August 25, 2025 at 9:26 AM
Reposted by Dr.Kat Stewart
jlittlefair.bsky.social
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
August 1, 2025 at 9:57 AM
Reposted by Dr.Kat Stewart
em-oyster.bsky.social
⛴️🌊OceanX is seeking a #post-doctoral associate in the field of marine #eDNA and meta #genomics

⏳unspecified deadline
👉More info: buff.ly/GXVsEfV
July 29, 2025 at 8:59 AM
Reposted by Dr.Kat Stewart
jdtonkin.bsky.social
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.
June 27, 2025 at 4:00 AM
Reposted by Dr.Kat Stewart
noguesbravo.bsky.social
Would you like to come to work with us here at @Macroecology ? The Center is opening six new positions!

macroecology.ku.dk/people/posit...
Open Positions
Positions and vacancies at the Center for Macroecology, Evolution and Climate
macroecology.ku.dk
June 30, 2025 at 9:09 AM
Reposted by Dr.Kat Stewart
shrewgod.bsky.social
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...
June 24, 2025 at 10:47 AM
Reposted by Dr.Kat Stewart
jsantoyo.bsky.social
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...
June 3, 2025 at 5:07 PM
Reposted by Dr.Kat Stewart
drbarnes.org
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...
www.reabic.net
June 4, 2025 at 9:09 PM
ecoevoedna.bsky.social
🎇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
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...
link.springer.com
June 2, 2025 at 8:19 AM
Reposted by Dr.Kat Stewart
envdna.bsky.social
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...
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...
www.biorxiv.org
May 29, 2025 at 3:12 PM
Reposted by Dr.Kat Stewart
romangoergen.bsky.social
🦈 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...
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.
oceanographicmagazine.com
May 9, 2025 at 6:58 AM
ecoevoedna.bsky.social
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.
May 6, 2025 at 9:02 AM
Reposted by Dr.Kat Stewart
hollybroadhurst.bsky.social
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 🧬🦦
May 5, 2025 at 11:43 AM
Reposted by Dr.Kat Stewart
mbmg.pensoft.net
🧬 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)
May 2, 2025 at 8:25 AM
ecoevoedna.bsky.social
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...
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...
www.universiteitleiden.nl
April 30, 2025 at 10:26 AM
ecoevoedna.bsky.social
Interested in establishing a European Society for Environmental Omics? Let your voice be heard #eDNA folks!
April 29, 2025 at 11:39 AM
Reposted by Dr.Kat Stewart
alexsmithants.bsky.social
🧪

Student Opportunity!!

Interested in using #eDNA to rediscovering lost #amphibian species in Área de Conservación Guanacaste, Costa Rica?

Check out this opportunity led by @rpuschen.bsky.social and join us working with #ACG and @gdfcf.bsky.social

🔗 Info: www.plymouth.ac.uk/study/resear...

🧪
Rediscovering Lost Amphibians: Using eDNA to Detect Critically Endangered Frogs in Área de Conservación Guanacaste, Costa Rica Project description Amphibians are among the most threatened vertebrates globally, with many species feared extinct due to habitat loss and emerging infectious diseases. However, some populations may persist undetected in remote and biodiverse regions like Área de Conservación Guanacaste (ACG), Costa Rica. This project will harness the power of environmental DNA (eDNA) to rediscover critically endangered Neotropical amphibians, including harlequin toads (Atelopus spp.), stream-breeding tree frogs (Hylidae), and elusive Neotropical salamanders (Plethodontidae). By collecting and analyzing water samples from pristine and historically occupied streams, we will identify traces of amphibian DNA, offering a non-invasive and highly sensitive tool for species detection. The project will refine eDNA sampling methodologies for tropical environments, bridging conservation science and molecular ecology to inform targeted conservation action. This ResM project is run in collaboration with Área de Conservación Guanacaste and the Guanacaste Dry Forest Conservation Fund (GDFCF), ensuring strong local conservation impact. The successful student will gain expertise in eDNA techniques, bioinformatics, and amphibian ecology while working in one of the most ecologically significant regions of Central America. This project has direct conservation applications, helping guide habitat protection and management strategies to safeguard rediscovered amphibian populations. Eligibility Applicants should have a first or upper second-class honours degree in a relevant subject such as biological sciences, molecular ecology, conservation biology, or a related discipline. A relevant Master’s qualification is desirable but not essential. This project is primarily laboratory-based, and applicants should have experience or a strong interest in molecular techniques, particularly environmental DNA (eDNA) analysis, PCR, and bioinformatics. Experience with DNA extraction, qPCR, metabarcoding, and sequence data analysis is advantageous. A background in amphibian ecology, conservation genetics, or freshwater ecology would also be beneficial. The ideal candidate will be highly motivated, detail-oriented, and comfortable working with environmental samples in a molecular laboratory setting. Strong analytical skills and the ability to work independently while collaborating with conservation partners are essential. If your first language is not English, you must meet the minimum English language requirements for the programme: an IELTS Academic score of 6.5 (with no less than 5.5 in each component test area) or an equivalent qualification. The project is supported for 1.5 years and covers full tuition fees only. If you wish to discuss this project further informally, please contact Dr Robert Puschendorf by email: robert.puschendorf@plymouth.ac.uk. Please see our apply for a postgraduate research programme page for a list of supporting documents to upload with your application.
April 16, 2025 at 2:24 PM
Reposted by Dr.Kat Stewart
alpineedna.bsky.social
What is nature vs biodiversity, how is #eDNA useful, and what is that corporate food chain that is waking up the risks posed by loss of #biodiversity? This podcast covers it all --> www.imd.org/ibyimd/podca...
Can eDNA revolutionize biodiversity monitoring? - I by IMD
Explore eDNA science with Kristy Deiner on the IMD Management Cast . Learn how genetics, biodiversity, and data analytics shape conservation and the bioeconomy.
www.imd.org
April 9, 2025 at 6:31 PM