Nate Upham
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n8upham.bsky.social
Nate Upham
@n8upham.bsky.social
Evolutionary biologist & Mammalogist at Arizona State University
Rodents of the Sonoran Desert and Sky Islands
Connecting rodent evolution, genomics, & ecology to life's cosmic problems 🌒
\\ Views are my own // #BLM
Brandon's the best! Super cool you invited him to speak ❤️
October 15, 2025 at 3:37 AM
Thanks Iroro!
September 15, 2025 at 1:58 AM
Thanks Theresa and Jack!!
September 12, 2025 at 3:51 AM
Impressively, most small mammal specimens (87%) were collected prior to 1980, meaning they were collected without DNA/RNA preservation as a priority.

This work lays the foundation for future fieldwork in the Madrean Sky Islands, especially from undersampled mountains.
September 8, 2025 at 7:46 PM
Mexico's 25 sky islands are mostly unsampled (only the San Luis, Sierra dos Ajos, and Sierra La Mariquita have any specimens) and several of Arizona's larger sky islands have fewer than 40 specimens (Galiuros, Canelo Hills, Santa Teresas, Mules, and Dragoons).
September 8, 2025 at 7:46 PM
Answer? Mostly on 5 of the 54 sky islands: 79% come from the Chiricahuas, Pinalenos, Huachucas, Animas, and Santa Catalinas.

Only 25 sky islands in the Madrean system have any recorded specimens.
September 8, 2025 at 7:46 PM
Just watched "Boy and the Heron" -- legendary!!
August 31, 2025 at 5:25 AM