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Anna MacDonald

@annamac.bsky.social
11K followers 3.1K following 213 posts

Uses DNA to study wildlife | plays hockey 🏑 | drinks tea | hikes | adventures with dogs | open heart surgery x2 #conservation #genetics #consgen #eDNA #ecology #Antarctica #biodiversity #seabirds #marsupials #WildOz Live in lutruwita / Tasmania 🇦🇺🇬🇧🏳️‍🌈 she/her

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Anna MacDonald @annamac.bsky.social · 3h
Sakura ❤️🐾 #RescueDog #AdoptDontShop
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Stefaniya Kamenova @stefaniyak2.bsky.social · 27/09/2026
Great new paper: The competence of the practitioner is inseparable from the credibility of #eDNA as a method, trustworthy exemplars and transparent communication of limitations are key for #eDNA uptake. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Embracing Environmental <fc>DNA</fc> (<fc>eDNA</fc>): Trust, Skepticism, and Competence in an Emerging Method
Trust in eDNA is fundamentally relational. Survey results show that experience increases perceived validity and usefulness while transforming skepticism into more nuanced evaluation, highlighting the....
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Mycology and Microbiology Center @myco-microbio.bsky.social · 28/09/2026
Eight years and thousands of samples later, results from one of our biggest long-term projects are finally published! 🌍💧🍄 The FunAqua dataset brings together aquatic fungal biodiversity data from 1,452 sites across 87 countries. www.nature.com/articles/s41...
nature.com
The FunAqua dataset of global fungal biodiversity in aquatic ecosystems - Scientific Data
Scientific Data - The FunAqua dataset of global fungal biodiversity in aquatic ecosystems
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Molecular Biology and Evolution @molbioevol.bsky.social · 17/09/2026
Mullin et al. use WGS from 101 museum specimens of British/Irish moss carder bumblebees from 1894-2019 to reveal a dramatic drop in genetic diversity: ∼24.6% decrease in heterozygosity and a 2.86-fold increase in ROH 🔗 academic.oup.com/mbe/article/... 📷 Gavin Broad #societyjournal #naturalhistory
MBE | Museum specimens reveal the genomic consequences of long-term population decline in an insect pollinator

Photo: Gavin Broad
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Metabarcoding and Metagenomics @mbmg.pensoft.net · 17/09/2026
A new #eDNA study of a Siberian bog finds #fungal diversity isn't concentrated in peat, as assumed - plant litter is richest, roots most specialized. Total richness (~11,500 SH) vastly exceeds the 208 species found by traditional sporocarp surveys: doi.org/10.3897/mbmg...
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Anna MacDonald @annamac.bsky.social · 14/09/2026
Liking some lichen. Hartz mountains. #Lutruwita #Tasmania #bushwalk #hiking
A large lichen-covered boulder, splashed with orange and black patches, sits in the foreground amid reddish alpine shrubs and grasses, with rocky terrain and dense green bush rising toward a cloudy sky behind.
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Anna MacDonald @annamac.bsky.social · 14/09/2026
Stunning views at Hartz mountains. #Lutruwita #Tasmania #bushwalk #hiking
An alpine wetland with scattered tussocks and reddish plants rising from shallow water, leading to a pool bordered by low bushes, with a misty peak visible on the horizon under a heavy grey sky.
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Anna MacDonald @annamac.bsky.social · 14/09/2026
Cushion plant. Hartz mountains. #Lutruwita #Tasmania #bushwalk #hiking
A rounded green cushion plant forms a dense, moss-like mound at the edge of still water, surrounded by reddish-brown alpine shrubs and grasses under a cloudy sky with distant hills on the horizon.
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Anna MacDonald @annamac.bsky.social · 14/09/2026
Arve Falls. Hartz mountains. #Lutruwita #Tasmania #bushwalk #hiking
A waterfall cascades over dark rock through dense green forest, framed by shrubby understory in the foreground and tall eucalyptus trees on the ridge above, with an overcast sky visible at the top.
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Anna MacDonald @annamac.bsky.social · 13/09/2026
Must be time for some more dog spam. Walk to our local cafe for coffee and dog treats 🐾 Sakura is extra fluffy after a wash yesterday ❤️
A very fluffy grey and white husky type dog, lying in the outdoor seating area of a cafe, looking very pleased to be there.
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Anna MacDonald @annamac.bsky.social · 09/09/2026
Conservation assessments focus on species but should also consider within-species diversity. It can be hard to combine ecological & molecular data to define genetically-distinct conservation units. Our paper outlines a standardised framework for population & ESU delineation doi.org/10.1093/bios...
doi.org
A practical framework for identifying genetic subpopulations and ESUs: Insights for IUCN assessments and broader management
Abstract. Species conservation assessments evaluate extinction risk, and recovery potential, advancing species persistence through guiding resource priorit
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Anna MacDonald @annamac.bsky.social · 09/09/2026
Nice to spend some time around the Hobart waterfront this week for the World Seabird Conference #WSC4
A view of Hobart across the wharf. Fishing boats in the water in the foreground, behind them the buildings of Hobart - a mix of older and more recent architecture - and  Kunanyi / Mout Wellington rising behind.
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Joachim Mergeay @jmergeay.bsky.social · 03/09/2026
We calculated the effective size of the Scandinavian wolf population every year since its founding from the entire pedigree. Why? Because we could. But also because this population is vulnerable, and policy keeps pushing for lower and lower conservation targets 1/ #consgen
nature.com
The effective size of the Scandinavian wolf population is too small for both short- and long-term conservation - Heredity
Heredity - The effective size of the Scandinavian wolf population is too small for both short- and long-term conservation
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Becky Taylor @beckystaylor.bsky.social · 01/09/2026
Been wondering how well runs of homozygosity can predict inbreeding depression? Read our new meta-analysis where we show a significant relationship between ROH and fitness across taxa #popgen #consgen: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Runs of Homozygosity Predict Inbreeding Depression Across Taxa: A Systematic Review and Meta‐Analysis
Measuring inbreeding via runs of homozygosity (ROH) captures realized autozygosity and can infer inbreeding timing through ROH length. A growing body of literature links the proportion of the genome ....
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Sibelle Vilaça @sibellevilaca.bsky.social · 21/08/2026
We have a new paper! Here we argue that the Global South needs to play a central role in biodiversity genomics, and not be relegated to sample providers. We also propose a pathway forward. #genomics #consgen www.frontiersin.org/journals/sci...
frontiersin.org
Frontiers | Sequencing life on Earth: why the Global South must be central
The biodiversity crisis is accelerating, with recent IUCN Red List confirming multiple recent species extinctions (IUCN, 2025). Of the 17 megadiverse countri...
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Jente Ottenburghs | Avian Hybrids @jenteo.bsky.social · 11/08/2026
Genetics and genomics of hybridization | Nature Reviews Genetics www.nature.com/articles/s41... Amazing review! 🤩
nature.com
Genetics and genomics of hybridization - Nature Reviews Genetics
Hybridization, the exchange of genes between divergent lineages, is now recognized as widespread across eukaryotes and essential to understanding genome evolution. In this Review, Schumer and Rieseber...
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Joanna Masel @joannamasel.bsky.social · 03/06/2026
Our new paper doi.org/10.1098/rspb... on long-term genetic threats to small populations finds that "mutational meltdown" (bad mutations fixing) is less of a problem than "mutational drought" (too few good new mutations) @wmawass.bsky.social @uliseshmc.bsky.social @jeremyjberg.bsky.social 1/5
doi.org
Extinction vortices are driven more by a shortage of beneficial mutations than by deleterious mutation accumulation
Abstract. Habitat loss contributes to extinction risk in multiple ways. Genetically, small populations can face an ‘extinction vortex’—a positive feedback
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Anna Brüniche-Olsen @annabruniche.bsky.social · 18/05/2026
New DNA evidence shows dingoes are almost 90% pure – and fall into eight distinct groups 🧬 🐕 Write up based on our new research doi.org/10.1111/con4... in @consletters.bsky.social #popgen #consgen
theconversation.com
New DNA evidence shows dingoes are almost 90% pure – and fall into eight distinct groups
Ancient and modern dingo DNA reveals eight genetically distinct groups of dingoes – and the limited influence of domestic dog genes.
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 27/03/2026
The Fish Behind Fish Feed: Rethinking Transparency Using DNA Tools onlinelibrary.wiley.com/doi/10.1111/... 🧪🌎🦑🐠
onlinelibrary.wiley.com
The Fish Behind Fish Feed: Rethinking Transparency Using DNA Tools
Aquaculture is now the fastest growing food sector and may be a promising solution to increasing seafood demands. Yet, carnivorous aquaculture species such as salmon and seabass continue to rely on…
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Southern eDNA Society @sednasociety.bsky.social · 03/03/2026
🧬📸 Calling all eDNA enthusiasts, researchers, students & practitioners! We want to see eDNA through your lens 👀 The #eDNAinFocus Photo Competition celebrates the creativity, diversity & real-world impact of environmental DNA research across Australia, New Zealand & beyond 🌏 🧵👇
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Anna MacDonald @annamac.bsky.social · 06/03/2026
Another belated "new paper". We used passive #eDNA sampling to evaluate the risk of biofouling species being introduced to Macquarie Island (and other Antarctic / subantarctic locations) by ships. Story from AAD: www.antarctica.gov.au/news/2026/ed... and link to paper: doi.org/10.1016/j.sc... 🧬🧪
antarctica.gov.au
e-DNA surveys could improve marine biosecurity – Australian Antarctic Program (News 2026)
Antarctic scientists have trialed a DNA ‘barcoding’ technique that could improve biosecurity measures that help protect polar ecosystems from invasive marine species.
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Anna MacDonald @annamac.bsky.social · 06/03/2026
While I was down South, this paper was published: MetaZooGene Intercalibration Experiment (MZG-ICE): Metabarcoding Marine Zooplankton Diversity of the Global Ocean. A nice collaboration via SCOR MetaZooGene Working Group - we evaluate #eDNA data comparability among labs. doi.org/10.1111/1755... 🧬🧪
doi.org
MetaZooGene Intercalibration Experiment (MZG‐ICE): Metabarcoding Marine Zooplankton Diversity of the Global Ocean
DNA metabarcoding of zooplankton biodiversity is used increasingly for monitoring global ocean ecosystems, requiring comparable data from different research laboratories and ocean regions. The MetaZo...
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Joachim Mergeay @jmergeay.bsky.social · 24/02/2026
A great explainer on the targets and indicators for the Global Biodiversity Framework. #consgen
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Anna MacDonald @annamac.bsky.social · 13/01/2026
A black browed albatross against the waves of the Southern Ocean. Photographed from RSV Nuyina near McDonald Islands #subantarctic #MarineScience
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Anna MacDonald @annamac.bsky.social · 13/01/2026
Yesterday I got to enjoy something special. RSV Nuyina passed near the McDonald Islands. I spent time on deck in the wind, spray & swell of the Southern Ocean, watching hundreds (thousands?) of seabirds hunting for food and travelling around the islands. #volcano #subantarctic #MarineScience #eDNA
McDonald Islands viewed from the ship - remote, steep, rocky islands rise from the southern ocean McDonald Islands viewed from the ship - remote, steep, rocky islands rise from the southern ocean McDonald Islands viewed from the ship - remote, steep, rocky islands rise from the southern ocean McDonald Islands viewed from the ship - remote, steep, rocky islands rise from the southern ocean
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Anna MacDonald @annamac.bsky.social · 05/01/2026
Stunning views of Big Ben from the deck of RSV Nuyina at Heard Island. Big Ben is an active volcano and Australia’s highest peak. It’s usually swathed in cloud, but not yesterday! #subantarctic #MarineScience #eDNA
Big Ben - a snow and ice covered volcano, dominating the view of Heard Island from the ocean. Some blue sky through the clouds.Big Ben - a snow and ice covered volcano, dominating the view of Heard Island from the helicopter deck of RSV Nuyina, with a colleague taking in the view. Some blue sky through the clouds.Big Ben - a snow and ice covered volcano, dominating the view of Heard Island from the ocean. In this photo a glacier flowing down the mountain reaches the seaBig Ben - a snow and ice covered volcano, dominating the view of Heard Island from the ocean.
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Anna MacDonald @annamac.bsky.social · 05/01/2026
Moonrise last night, from the heli deck of RSV Nuyina at Heard Island #subantarctic #MarineScience 🧪🧬
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Anna MacDonald @annamac.bsky.social · 27/12/2025
Season’s greetings from the Southern Ocean! I’m spending the summer on RSV Nuyina collecting #eDNA samples for biodiversity surveys 🌊❄️🐧🧬🚢🇦🇶 #antarctica
Close up picture of me (in warm clothing) standing on the deck with sea ice behind meLooking back along the port side of the ship, over two orange life boats, to see views of sea ice next to and behind the ship. A trail of disturbed ice shows where we came fromA large ice berg in the blue ocean, with paler blue sky and clouds behindSunset over the ocean, and reflected in the ship’s windows at the edge of the picture
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Gernot Segelbacher 🪶 🧬 @gsegelbacher.bsky.social · 03/12/2025
very interesting work on mosses in the arctic and their change in spore dispersal over time - also an important argument why we need long term monitoring programs #eDNA #consgen 🧪🌏🦤 jecologyblog.com/2025/11/18/s...
jecologyblog.com
Striking shifts in the timing of bryophyte spore dispersal: What 35 years of airborne DNA revealed about climate change
Fia Bengtsson, Lund University and Norwegian Institute of Nature Research, discusses her article: Rapid shifts in bryophyte phenology revealed by airborne eDNA Most of us walk past mosses and liver…
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Nicolas Dussex @nicolasdussex.bsky.social · 19/12/2025
🌊 🐟🦭🐋🐧 I have a PhD position available (4 years, start Mid-2026) at NRM Stockholm to work on the macrogenomics of sea warming. Apply here: recruit.visma.com/spa/public/a... #PhD #MarineGenomics #ClimateChange #EvolutionaryBiology #PopGen #Bioinformatics #conservationgenomics
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Anna MacDonald @annamac.bsky.social · 21/12/2025
Happy solstice! This is my longest longest day ever ☀️#Antarctica
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Joachim Mergeay @jmergeay.bsky.social · 21/11/2025
🧬 DNA from a biopsy sample taken from a surfacing beaked whale with a modified crossbow confirms these specimens as ginkgo-toothed beaked whales (mesoplodon ginkgodens), a species never (knowingly) seen alive. #consgen 🦊
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Anna MacDonald @annamac.bsky.social · 25/11/2025
So long Hobart, see you in February! I’m on board Australia’s icebreaker RSV Nuyina, heading south for the summer to collect environmental DNA samples to study biodiversity. We left yesterday afternoon, heading to Casey Station in #Antarctica and then Heard Island ❄️ 🐧 🧬 #eDNA
This is a selfie of me in my bright green jacket, standing on the heli deck of RSV Nuyina. There is distant land (southern Tasmania) in the background, across the water. The deck has “NUYINA” written in large white letters behind me.
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Dr Simon Goodman @phoca-sapiens.bsky.social · 10/11/2025
New PhD studentship opportunity in my lab & with collaborators from the Pinniped Genomes Consortium. Come help us unravel the genomics of seal physiological super powers! Closing date 7th January 2026 🧪🦭🧬🌍🦑🐳 #marine #mammals #consgen #popgen #phylo #molevol #evolution yes-dtn.ac.uk/research/the...
yes-dtn.ac.uk
The evolutionary genomics of life-history adaptations in pinnipeds - Yorkshire Environmental Sciences • Doctoral Training Network
Project summary Pinnipeds (seals, sea lions, fur seals and walrus) are keystone marine predators, and sentinels for marine ecosystem health. Advances in genomic technology open up the possibility to u...
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Laura Bertola @lauradbertola.bsky.social · 14/11/2025
We have another publication out! 🎉🎉🎉 “Hybrids along a natural–anthropogenic gradient: improving policy and management across all levels of biodiversity.” We explore how to deal with hybrids in conservation — scientifically and practically. A thread 🧵 conbio.onlinelibrary.wiley.com/doi/10.1111/...
conbio.onlinelibrary.wiley.com
Hybrids Along a Natural‐Anthropogenic Gradient: Improving Policy and Management Across All Levels of Biodiversity
Hybridization has long been a central topic in evolution and conservation. Recent developments in genomics have increased the ability to detect hybridization, defined here as breeding between species....
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Science & Fiction @scienceandfiction.net · 26/06/2025
This is 💙 Science & Fiction 💙 where scientific results & fictional stories intersect. A space for people who like to a) learn about #science & b) read exciting fictional stories ✨ 🇬🇧 www.scienceandfiction.net 🇩🇪 www.scienceandfiction.net/de Support: ko-fi.com/scienceandfi... #scicomm #wisskomm
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eDNAqua-Plan Project @ednaquaplan.bsky.social · 10/10/2025
DNA in sediments tells a longer story! New research shows sedimentary #eDNA can persist up to 132 days & be up to 1800x more concentrated than in water. What do you think about this? tinyurl.com/mtr947tn #Genomics #Biodiversity #Conservation
tinyurl.com
Fish environmental DNA is more concentrated in aquatic sediments than surface water
Genetic identification of aqueous environmental DNA (eDNA) provides site occupancy inferences for rare aquatic macrofauna that are often easier to obt…
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Maarten De Brauwer @maartendb.bsky.social · 10/10/2025
PhD opportunity: improving #eDNA methods to better understand estuarine health. A collaborative university-government project to provide solutions and improve the management of estuaries in Australia. sednasociety.com/2025/10/10/p...
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Gernot Segelbacher 🪶 🧬 @gsegelbacher.bsky.social · 24/09/2025
why we need genetic diversity new paper out #consgen 🧪🦤🌏 doi.org/10.1002/pan3...
doi.org
Genetic diversity is key to a nature‐positive future
Read the free Plain Language Summary for this article on the Journal blog.
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Gernot Segelbacher 🪶 🧬 @gsegelbacher.bsky.social · 06/10/2025
what is biobanking about? find our more in these guidelines just published today 🌏🦤🧪 They are freely available and can be downloaded here: portals.iucn.org/library/site... #consgen
Picture of cover page of the biobanking guidelines for conservation with title author list and four images of a fern, frog, cryotubes and a seastar
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Marine eDNA Dude @marinednadude.bsky.social · 17/09/2025
For the first time this Spring, NOAA adopted eDNA into a formal stock assessment of Pacific Hake and this was supported by the Scientific Review Group for the Pacific Fisheries Management Council. www.fisheries.noaa.gov/s3/2025-03/2...
fisheries.noaa.gov
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Anna MacDonald @annamac.bsky.social · 16/09/2025
A little more dog spam, Sakura and Syra enjoying a forest walk 🐾 🐾 #RescueDog #AdoptDontShop
Two husky type dogs, one wolf grey and one black and white, standing on a train in the forest with green trees behind. Both dogs look happy
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Anna MacDonald @annamac.bsky.social · 16/09/2025
It’s been a while since I posted some dog spam. Here’s Sakura enjoying the beach 🐾 #RescueDog #AdoptDontShop
A photo of a happy husky-type dog walking along the sand at the beach, with water in the background.
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Polar Observer @polarobs.bsky.social · 15/09/2025
Astronauts on long-duration space missions could benefit from new #Antarctic research trialing ways to measure changes in brain and body function during deployments. www.antarctica.gov.au/news/2025/as...
antarctica.gov.au
Astronauts to benefit from brain tests in Antarctica – Australian Antarctic Program (News 2025)
Astronauts on long-duration space missions could benefit from new Antarctic research trialing ways to measure changes in brain and body function during deployments.
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Maarten De Brauwer @maartendb.bsky.social · 04/09/2025
Job opening! CSIRO @csiropublishing.bsky.social is currently hiring 2 #eDNA Postdoctoral Fellowships! sednasociety.com/2025/09/04/j...
sednasociety.com
Job opportunities: 2 Postdoctoral Fellowships at CSIRO
CSIRO, Australia’s national science agency, is currently recruiting two eDNA Postdoctoral Fellows. Applications close on October 5th. More information and links below. CSIRO Postdoctoral Fell…
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Philipp Bayer @philippbayer.bsky.social · 29/08/2025
This is great - we a huge need in the #eDNA community to have data-informed standards for eDNA identity cutoffs, not just the bog-standard 97% besjournals.onlinelibrary.wiley.com/doi/full/10.... For Chordata there is no cutoff that leads to 0% error when assigning species!! (Table S4)
besjournals.onlinelibrary.wiley.com
Taxon‐specific BLAST percent identity thresholds for identification of unknown sequences using metabarcoding
The identification of organisms in environmental samples using metabarcoding relies on factors such as taxonomic assignment methods, genetic markers, reference databases and confidence thresholds ...
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Erin Hahn (she/her) @erinhahn.bsky.social · 16/07/2025
📣 New paper! 📣 We summarise the outputs of last year's @sednasociety.bsky.social Airborne eDNA Workshop & chart a path for airborne eDNA as a transformative tool for #biodiversity, #biosecurity & #conservation. 🔗 tinyurl.com/4a8vb6ja #eDNA #airDNA #SeDNAS
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Justine E. Hausheer @justinehausheer.bsky.social · 19/06/2025
“Like climate change denialism, invasive species denialism is toxic” and “does a disservice to conservation.” PREACH 🙌💯 #iccb2025
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Justine Shaw @justineshaw.bsky.social · 19/06/2025
It's essential to build genetic diversity into the design of protected area. @lausally.bsky.social shares learnings about biodiversity hotspots in Antartcic marine waters informed by genetic data. Supported by @arcsaef.bsky.social #ICCB2025
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Nat Forsdick @natforsdick.bsky.social · 19/06/2025
Elize Ng describes the challenges of coordinating #conservation across the East Asian Australasian Flyway. What has been done, and how successful have these actions such as predator control, habitat protection and restoration been? #ICCB2025 🪶
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