W. Andrew Barr
@wabarr.bsky.social
Assistant Prof at George Washington University. Paleoecology and human evolution. Creator of bioanthtree.org
its a food web....species connected to others with arrows, but this elliptical layout algorithm was NOT appropriate!
April 2, 2025 at 6:44 PM
its a food web....species connected to others with arrows, but this elliptical layout algorithm was NOT appropriate!
yes...100% I had the same thought!
April 2, 2025 at 6:44 PM
yes...100% I had the same thought!
Not to even mention cuts to police force, and many other public services.....
March 11, 2025 at 1:31 PM
Not to even mention cuts to police force, and many other public services.....
If you are lucky to live in a place where you have congressional representation please help us! Help my kids! Help the 10s of thousands of children who will be hurt by this.
March 11, 2025 at 1:31 PM
If you are lucky to live in a place where you have congressional representation please help us! Help my kids! Help the 10s of thousands of children who will be hurt by this.
That's an amazing writing space. I feel like I might be able to write a book in a space like that! 🤣
December 2, 2024 at 1:54 PM
That's an amazing writing space. I feel like I might be able to write a book in a space like that! 🤣
We conclude that we must take habitat reconstructions of extinct species as minimum estimates. We also point out that the rift is bad at capturing east-west gradients in variation. Free link to article here rdcu.be/dRqUm (4/4)
Spatial sampling bias influences our understanding of early hominin evolution in eastern Africa
Nature Ecology & Evolution - The Eastern African Rift System (EARS) is a key location for the hominin fossil record, but the fact that it samples a narrow section of the continent has long been...
rdcu.be
August 22, 2024 at 1:44 PM
We conclude that we must take habitat reconstructions of extinct species as minimum estimates. We also point out that the rift is bad at capturing east-west gradients in variation. Free link to article here rdcu.be/dRqUm (4/4)
We then take published cranial datasets of modern baboons and guenons and ask, how much anatomical variation does the rift capture in these widely distributed primates? Turns out major portions of morphological variation are missed by the rift. (3/4)
August 22, 2024 at 1:43 PM
We then take published cranial datasets of modern baboons and guenons and ask, how much anatomical variation does the rift capture in these widely distributed primates? Turns out major portions of morphological variation are missed by the rift. (3/4)
We take modern mammals that live in the rift for part of their range. We then "blind" ourselves to each species' occurrence outside the rift, and compare the rift to the full ranges. Unsurprisingly, the rift reflects the drier, less woody part of species' ranges. (2/4)
August 22, 2024 at 1:43 PM
We take modern mammals that live in the rift for part of their range. We then "blind" ourselves to each species' occurrence outside the rift, and compare the rift to the full ranges. Unsurprisingly, the rift reflects the drier, less woody part of species' ranges. (2/4)