Dr David Hamilton
@drdevildave.bsky.social
2.6K followers 440 following 97 posts
Conservation Equollogist | Lutruwita, Tasmania | Tasmanian devil advocate & accidental quoll scientist, posting mainly science & quoll puns
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Reposted by Dr David Hamilton
calxcunningham.bsky.social
It's bizarre. I can think of at least 3 scientific publications that predict (i.e., model) the uncontrolled explosion of deer across Tas. None of them were referred to in the report. weirdddd
drdevildave.bsky.social
“Not anticipated”, if you’ve been living under a rock for the past 5 years…

www.abc.net.au/news/2025-10...

Feral deer are a huuuuge problem in Tasmania that’s only getting worse. Legislation catching up with reality would be a good start - incredibly, they’re still a partly protected species…
'Not anticipated': New survey shows deer population boom in Tasmania
The first survey for feral deer in Tasmania in five years reveals an unanticipated increase of nearly 20,000 to the population.
www.abc.net.au
Reposted by Dr David Hamilton
jackdashby.bsky.social
The measure for how excellent a city is should be how quickly you can see something wonderful.
It took less than an hour after arriving in #Hobart for @drdevildave.bsky.social and me to see a #platypus, which is of course the most wonderful thing there is. #Tasmania #MammalWatching #WildOz
drdevildave.bsky.social
A dangerous(ly adorable) predator approaches…
drdevildave.bsky.social
Harry, why is your dog stealing quoll food!?
drdevildave.bsky.social
Should note that the devils can, & do, extract themselves from this situation perfectly well. There’s no denying them food…
drdevildave.bsky.social
As part of eastern quoll translocation work, we use supplementary feeding stations that are meant to exclude Tasmanian devils.

The devils disagree…
A Tasmanian devil standing pensively outside a tube containing food. The tube is CLEARLY too small for the devil to fit into… Oh wait, no it isn’t… The devil has comically managed to insert the entire front half of his body into the narrow tube. It looks like he is entering another dimension
drdevildave.bsky.social
I am here for the Captain Quoll rebrand!!
drdevildave.bsky.social
Quoll beans!!

These tiny eastern quolls are only around 5 weeks old, & just starting to get their spots
A marsupial pouch full of tiny, pink eastern quolls. Their distinctive spotted pelage is starting to become apparent
Reposted by Dr David Hamilton
tasland.bsky.social
#GardensforWildlife members, here is a survey just for you! Your garden is the missing link in a new @utas.edu.au Honours research project. Honours student Millicent Biggs is studying how backyard gardens support #Tasmanian #wildlife. Start the survey here: lnkd.in/gChGeTAa
drdevildave.bsky.social
Please enjoy this antechinus sproinging* away

* technical term
drdevildave.bsky.social
That’s a funky looking EQ - its vibe is all wrong!
Reposted by Dr David Hamilton
jackdashby.bsky.social
You can date a display of Australian mammals by whether the distribution maps recognise recent extinctions. Eastern #quolls went extinct in mainland Australia in the 1960s, but they're still on this historic display at @hunterianglasgow.bsky.social Zoology Museum.
#taxidermy #extinction
A display of taxidermy of several species of Australian mammal, with a big green map of Australia. A taxidermy eastern quoll. The map on its label suggests the quoll lives in Tasmania (where it still does live today) and the southeast of the mainland (where it became extinct)
drdevildave.bsky.social
Whoops, sorry - that wasn't meant to be the take-home! The captive-bred quolls did great, we just have to refine methods in terms of which individuals are released to help them with breeding. So a focus on juveniles & adults who have bred previously in future, which is exactly what we're doing ☺️
Reposted by Dr David Hamilton
cath-dickson.bsky.social
Busy start to #ICCB2025 - sharing @tasland.bsky.social ten year fauna camera data set - pre & post-fire at Five Rivers. Huge shout out to coauthors including @drdevildave.bsky.social & Jo Potts
drdevildave.bsky.social
This work was the result of a great collaboration between @tasland.bsky.social, @utas.edu.au, WWF Australia and the Tasmanian Quoll Conservation Program (made up in part by Bonorong Wildlife Sanctuary, Devils@Cradle, East Coast Nature World & Trowunna Wildlife Sanctuary)
drdevildave.bsky.social
Another interesting side finding was the first (that we know of) genetic confirmation of multiple paternity in eastern quolls, with multiple litters found to have been fathered by more than one male quoll!
A nesting box full of quolls, with both colour morphs (dark & fawn) represented.
drdevildave.bsky.social
Useful lessons to be learned from this for future translocations of this species, with a key one being around releasing reproductively naive adult quolls. They were able to survive well in the environment, but may not have been able to translate that to breeding success.
drdevildave.bsky.social
However, genetic analysis of the next generation found no evidence that any of them had a captive-bred parent!

While we may have missed some juveniles in our sampling, this (at the least) indicates that the captive-bred quolls had lower breeding success than their wild counterparts
An adult male light-morph eastern quoll about to be released
drdevildave.bsky.social
We also wanted to examine the genetic effects of the supplementation, so sampled the next generation of quolls post-release.

This was a key part of an Honour's project by Jessica Morrison, who's the lead author on the study
An eastern quoll in the hand, after having a small genetic sample taken