Allan McDevitt
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shrewgod.bsky.social
Allan McDevitt
@shrewgod.bsky.social

Lecturer in ATU ๐Ÿ‡ฎ๐Ÿ‡ช Shrews are my thing but work on all sorts of critters across land and water! Molecular ecologist by trade, doing a lot of eDNA work these days! Lab website: https://sites.google.com/view/mcdevittlab/home .. more

Environmental science 47%
Biology 30%
Pinned
1st PhD chapter from @jjackman27.bsky.social on comparing #eDNA filtration methods in a hyper-tidal estuary. Although some methods outperform others, all are generally effective in recovering fish biodiversity, including the passive metaprobe. Paper here: onlinelibrary.wiley.com/doi/10.1002/...
In a new study, researchers from @uab.cat claim people have been whaling for almost 5,000 years โ€“ and that the earliest evidence comes from the warm coastal waters of Brazil, not the Arctic. www.science.org/content/arti... @science.org
Worldโ€™s oldest whale harpoons discovered in Brazil
Far from the icy Arctic, ancient South Americans hunted whales using whalebone tools
www.science.org
๐Ÿ€The invasive black #rat (๐˜™๐˜ข๐˜ต๐˜ต๐˜ถ๐˜ด ๐˜ณ๐˜ข๐˜ต๐˜ต๐˜ถ๐˜ด) reappeared on World Heritage-listed Lord Howe Island.

Using #DNA analysis, this new study examined whether the rats were survivors of the 2019 eradication programme or new arrivals from mainland Australia.
โžก doi.org/10.3897/neob...

#rodent #invasivespecies

Reposted by Allan D. McDevitt

Starting off 2026 in a highly porcine manner. The story dropped on Jan 1 when a lot of the planet was focussed more on a hangover cure (myself included), than on the latest in human-pig research. Huge congrats to the dozens of amazing scientists and hooray for pigs!

www.science.org/doi/10.1126/...
Genomic and morphometric evidence for Austronesian-mediated pig translocation in the Pacific
Several millennia of human-mediated translocation of non-native pig species (genus Sus) to the islands of Wallacea and Oceania have considerably altered local ecosystems. To investigate the timing and...
www.science.org

Reposted by Allan D. McDevitt

That's a tasty line-up of PhD projects!!
We are recruiting several PhD students. If you are interested in conservation conflicts, population ecology, quantitative ecology, or biodiversity, check these projects out (links in the thread, feel free to reach out):
We are recruiting several PhD students. If you are interested in conservation conflicts, population ecology, quantitative ecology, or biodiversity, check these projects out (links in the thread, feel free to reach out):

Reposted by Allan D. McDevitt

Our last product of the SCOR WG157 MetaZooGene if out! We run a 10-laboratory intercomparison experiment on for zooplankton metabarcoding. Take home: major patterns hold, but sequencing platform matters, taq matters (a lot), add positive/negative controls...
onlinelibrary.wiley.com/doi/10.1111/...
MetaZooGene Intercalibration Experiment (MZGโ€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...
onlinelibrary.wiley.com
๐Ÿ”ฅ 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 eDNAโ€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
We are hiring!
If you like the #sea and its #fish and are motivated to apply #eDNA methods to make #fisheries more sustainable, then this #postdoc position might be perfect for you:

jobs.ljmu.ac.uk/vacancy/post...

@thefsbi.bsky.social
@bes-aquaticgroup.bsky.social
Post-doctoral Research Associate in Marine Environmental DNA (Fixed term) (5297)
jobs.ljmu.ac.uk
๐Ÿ“ข #PhD opportunity! Interested in #eDNA and protecting our #rivers? We are recruiting a PhD researcher to tackle a very topical challenge: Empowering citizen scientists with an eDNA toolbox to safeguard #freshwater fishes. Deadline: January 16th 2026. #PhDPosition #CardiffUniversity bit.ly/49bl4gO

Reposted by Allan D. McDevitt

5 things youโ€™ll learn in my new Stable Isotope Ecology courses:

โ€ข Isotope foundations
โ€ข Study design
โ€ข Food webs
โ€ข Mixing models
โ€ข R workflows

๐Ÿ‘‰ www.atomicecology.com/courses ๐Ÿ‘‰
Stable Isotope Data Analysis Through R - Training from Atomic Ecology
A revised and improved version of my wildly successful stable isotope data analysis course is now available through Atomic Ecology. In this course I teach you howโ€ฆ
vimeo.com

They are, and always will be, the coolest mammals...
๐ŸงชNew #shrewcrew #OA @genomeresearch.bsky.social ๐Ÿ“ƒshows how tiny shrews remain active in โ„๏ธโ„๏ธ! As it gets ๐Ÿฅถtiny mammals hibernate or migrate, but not shrews. They shrink, thus reducing their overallโšก๏ธdemand ๐Ÿ‘‰๐Ÿฝ genome.cshlp.org/content/earl... 1/4

Reposted by Allan D. McDevitt

Our new paper in PNAS, led by Megan Power: a large-scale study of telomere shortening in relation to reproductive costs in bats. Photo of one of the greater horseshoe bats we studied at Woodchester mansion by Hetty Metcalfe.

Reposted by Allan D. McDevitt

๐ŸงชNew #shrewcrew #OA @genomeresearch.bsky.social ๐Ÿ“ƒshows how tiny shrews remain active in โ„๏ธโ„๏ธ! As it gets ๐Ÿฅถtiny mammals hibernate or migrate, but not shrews. They shrink, thus reducing their overallโšก๏ธdemand ๐Ÿ‘‰๐Ÿฝ genome.cshlp.org/content/earl... 1/4

Reposted by Allan D. McDevitt

Dive deep into the early history of humans and dogs, this week on the @science.org podcast w/ Life Sciences Editor Sacha Vigniri ๐Ÿ•๐Ÿ•โ€๐Ÿฆบ๐Ÿฉ

www.science.org/content/podc...

Reposted by Allan D. McDevitt

Our new @azti.bsky.social paper on Advancing ecological #assessment: towards the integration of #eDNA #metabarcoding into an estuarine #fish index is out.
#Research
#MarineEcology
#GES4SEAS

Free download here:

authors.elsevier.com/sd/article/S...
New #mammal conservation #PhD: "Understanding and Addressing Rural Hedgehog Population Declines".

@srucnews.bsky.social EastBio CASE project in partnership with (and co-supervised by) @ptes-org.bsky.social.

Details: www.findaphd.com/phds/project...

Act fast - applications close 15 December.
๐Ÿฆ”๐Ÿฆ”๐Ÿฆ”

Reposted by Allan D. McDevitt

Ireland and Troy Parrott, why such a moment probably shouldnโ€™t have been possible, and why itโ€™s about so much more than a play-off

A moribund national team culture is alive again

www.independent.co.uk/sport/footba...
Why Troy Parrottโ€™s magic moment meant more than the World Cup play-offs to Ireland
The plight of Heimer Hallgrimssonโ€™s team after four games meant none of this should have possible for a country which lacks the talent pool of yesteryear
www.independent.co.uk
A PhD project on historical genomics in the declining red squirrel in Britain is available in my group, through the @aries-dtp.bsky.social. Use historical genomes to track the effects of decline and genetic rescue in this charismatic species. aries-dtp.ac.uk/studentships...
Historical genomics of the declining red squirrel in Britain | Aries
Dr Anders Bergstrรถm, School of Biological Sciences, University of East Anglia Professor Cock van Oosterhout, School of Environmental Sciences, University of East Anglia Dr Selina Braceโ€ฆ
aries-dtp.ac.uk

Ah, the dreaded reviewer comments that are longer than the paper itself ๐Ÿคฆโ€โ™‚๏ธ
Out now by Zhang et al:

Hyperspectral imagery ๐Ÿ›ฐ๏ธ, LiDAR point clouds ๐Ÿ›ฉ๏ธ, and #eDNA ๐Ÿงฌ to assess land-water linkage of #biodiversity across #aquatic functional feeding groups.๐ŸŸ๐Ÿชฐ๐Ÿฆ ๐Ÿ”ฌ๐ŸŒ๐ŸŒ

zslpublications.onlinelibrary.wiley.com/doi/10.1002/...

@eawag.bsky.social #UZH

Reposted by Allan D. McDevitt

If there is anything that you always wanted to know about the #metaprobe but were afraid to ask,
Mark your diary: THURSDAY 27 NOVEMBER!
More news soonโ€ฆ
#eDNA
@britishecologicalsociety.org

Can't get an ewok out of my head looking at the face pattern on the left!
๐ŸฆŒ Deer migration, deer density, tick distribution and incidence of a tick-borne zoonosis
โžก๏ธ buff.ly/4wXYf5c
Interested in a PhD in ornithology? Funding available for projects at the interface of ecology, behaviour & evolution from Oct '26 working on long-term population studies of tits at Wytham, based in @biology.ox.ac.uk in the new Life & Mind Building in Oxford
www.findaphd.com/phds/project...

Reposted by Allan D. McDevitt

Five species from a #smallmammal #cameratrap at Portsoy, Aberdeenshire - a mouse, two voles and two shrew species - including Water Shrew ๐Ÿ˜€

#mammal #trailcamera @nesmammals.bsky.social

Reposted by Allan D. McDevitt

๐Ÿ‡ This study presents a methodological framework using camera trap and scat data to assess how components of prey availability influence prey selection. This is done in a way that can be applied across a variety of mammal species and ecological contextsโžก๏ธ buff.ly/7iWNO4X

Reposted by Allan D. McDevitt

Just out, our new paper "The state of the late Quaternary megafauna extinction debate...". We review the various perspectives, methods, and datasets which have been used to explore the extinction of many large animals. Was it humans, climate, or a mix of both? The debate continues!
Frontiers | The state of the late Quaternary megafauna extinction debate: a systematic review and analysis
With its origins in the late 18th and early 19th century, the question of what drove the late Quaternary megafauna extinctions remains one of scienceโ€™s most ...
www.frontiersin.org

Reposted by Allan D. McDevitt

In this #newpaper I joined 24 other colleagues across 18 countries to say nuance is needed in licensing marine ecological restoration projects. We don't advocate deregulation but they can't be subjected to same licensing framework as extractive and commercial activities. www.cell.com/cell-reports...
Rethinking marine restoration permitting to urgently advance efforts
The decline in marine biodiversity necessitates the urgent restoration of our oceans; however, these efforts face unique technical, financial, and regulatory challenges. Unlike terrestrial work, metho...
www.cell.com
๐ŸŒŠ New paper out!
Our latest study in Environmental DNA shows how fish daily vertical migrations affect eDNA in the ocean. ๐ŸŸ
For species like European hake, seafloor eDNA signals vary between morning and evening, showing that behavior must be considered in eDNA monitoring.
๐Ÿ‘‰ doi.org/10.1002/edn3...
Environmental DNA for Aquatic Monitoring: Impact of Diel Vertical Migration
Environmental DNA concentrations are affected by animal behavior, such as diel vertical migration (DVM), which has repercussions for designing eDNA sampling strategies. The effect of DVM was identifi....
doi.org