Jonathan Keller

Animals are neat! | Zoology | Paleo | Ecology | Evolution | Behavior | 3D imaging | Wildlife photography | PhD candidate @UNM | @UMNcbs grad | views his own

[Jonathan Keller @jonathanimals]

I defend my PhD this Friday, May 1st at noon Mountain Time.

Regardless of how recently we've interacted, please feel free to attend virtually via the Zoom link below.

https://t.co/xsartuf0rU
Meeting ID: 373 834 4128
Passcode: Keller

[Yiqi Luo @YiqiLuo]

New Science paper by Ohlert et al with a rainfall-exclusion experiment at 74 sites over the globe shows extreme droughts caused high productivity declines and low recovery, especially in drier locations with low plant diversity. https://t.co/U3BMLtQ6rf

[Connor Burgin @ConnorBurgin1]

My first dissertation chapter is published, announcing the v2.0 release of the Mammal Diversity Database! How many mammal species are there now? Updates and trends in taxonomic, nomenclatural, and geographic knowledge. https://t.co/C7imJhA2Fb

[Jonathan Keller @jonathanimals]

@caryatis @KelseyTuoc "Capture all your complicated feelings about gender" is needlessly condescending.

[Tim Ohlert @Tim_Ohlert]

Our paper on trait diversity indices is out now in PLOS ONE! Great paper to share with the trait nerd in your life.
https://t.co/GxPIqGNsPM

@MeghanAvolio @drcynthiacchang @phylofeast @ge54783 @hobbie_sarah @drkimkomatsu

[Rob Wiblin @robertwiblin]

Driving the New World Screwworm to extinction using 'gene drives' could do more to improve animal welfare than eliminating factory farming globally.

Hard to believe but so argues MIT biologist and inventor of the gene drive, @KEsvelt:

[Jonathan Keller @jonathanimals]

@IainCampbellPhD @ChrisPalmerMD For anyone else wondering about the Russian methods: "The fast consist[ed] of total abstinence from food for a period of 25-30 days."

[Jocelyn P. Colella @jociecolella]

🚨ENMs differentiate Pacific from American pine martens in North America, with potential ecological displacement when the two species are in sympatry:
https://t.co/xBvAxC7ZxR

Thanks to coauthors @Smilodontology @_danielleland @omys_omics + K. Stone + J. Cook

[Dr. Davey F. Wright ⛏️🦕🧬 @Davey_F_Wright]

Maybe the real @Napc2024 was the wonderful time with friends we had along the way. Feeling so blessed to be a paleontologist

[Savi Made @SaviMade]

Giveaway time! As a thank you to my twitter followers (all 500 of you!) I'm giving away a paint-it-yourself green frog model in the spirit of amphibian week
To enter, all you have to do is follow me and retweet this tweet. On May 11 at 8pm EST I'll draw a winner from the retweets

[Jonathan Keller @jonathanimals]

@lukenweaver @UMich @MichiganEarth @UMichPaleo Congrats, Luke! I hope to see you at NARLEE/NAPC!

[Jonathan Keller @jonathanimals]

@DrPardi *ephemeral signal. I'm still hesitant to do much stream of consciousness-ing on Xitter because uneditable errors are visible to so many.

[Jonathan Keller @jonathanimals]

@DrPardi Looks we had the same thought at the same time on two different platforms, haha. My reading suggests the marshmallow poops don't last long in cattle. So the elevated d15N would be an ephemeral ephemeral averaged over some period depending on the sampled predator's tissue type.

[Jonathan Keller @jonathanimals]

@DrPardi I'm on board with bioavailable fat and protein likely being higher in unweaned calf scat. I just wonder how that changes in scat derived from in utero nutrition vs milk-only vs weaning — and which of these give rise to the wolf-desired marshmallow poops.

[Jonathan Keller @jonathanimals]

@DrPardi "Excrement (poop) from a healthy milk-fed calf is usually yellow or light brown in color and has the consistency of caulking compound. As the calf matures (at about 30 days of age) their stools will become stiffer" per bulletin 1058 on an extension pub from U Maine.

[Sophianeⵣ is Team Hoary🦇🦇 @HonkIfUrHoary]

Ranchers on Facebook be like

[Connor Burgin @ConnorBurgin1]

Another MDD update! Definitely pretty late, but a pretty big set to end 2023 and start 2024! This update broke 6600 living mammal species as well.

[Julia Schwab @Julia__Schwab]

NEW paper on carnivoran ecomorphology!!! 🐆🐅🐈🐕🦭
Check out our review paper on how geometric morphometrics can tease apart ecomorphological signals: https://t.co/Rzikt6tiQX

[Adelaide University Palaeontologists @AUPalaeos]

You know you're gonna get a good #OpenDay experience when the UoAPalaeos show up! 😉🦖🦴🦘🐚

[Dr. Melissa I. Pardi, friend of megafauna @DrPardi]

Check out #IMC13 poster 160, one of our @Mammalogists undergraduate honoraria recipients. Esteban identified apomorphies across species of Reithrodontomys using CT scanning.