Hank Baker
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hankbaker.bsky.social
Hank Baker
@hankbaker.bsky.social
Evolutionary ecologist and conservation biologist with an affinity for freshwater and anadromous fish. Postdoc at UC Berkeley.
Interestingly, we found no evidence that non-natal rearing is driven by competition in the natal habitat, as previous earlier work indicated, suggesting instead that non-natal rearing is volitional. (7/8)
February 25, 2025 at 6:00 PM
Importantly, non-natal rearing was not expressed during very flow years, suggesting that as drought becomes increasingly common with global climate change, impacts on fish may be compounded by losses of critical phenotypic variation. (6/8)
February 25, 2025 at 6:00 PM
This effect may be mediated by differences in growth rate and emigration timing between groups. The non-natal rearers have more variable growth rates (only 1 yr of data), and more variable but earlier emigration timing than natal rearers. (5/8)
February 25, 2025 at 6:00 PM
This distinct, but somewhat subtle, form of phenotypic variation had important effects on population dynamics: The early downmigrants (non-natal rearers) returned as adults at a higher rate and with 1.6x greater stability through time than their natal rearing counterparts. (4/8)
February 25, 2025 at 6:00 PM
Coho are typically thought to rear in their natal habitat for a year before migrating to sea. We found that many fish (44%) leave their natal habitat early and spend several months rearing in the lower portion of the creek before emigrating. (3/8)
February 25, 2025 at 6:00 PM
This work took place in Willow Creek, a tributary to the Russian River and home of the endangered Central California Coast coho salmon. We tracked over 3000 juvenile salmon spanning nine cohorts using PIT tag detections. (2/8)
February 25, 2025 at 6:00 PM
A poem for today:

The Peace of Wild Things
By Wendell Berry
January 21, 2025 at 6:21 PM
Grateful to be in a lab that loves watching fish as much as I do. @fishteph.bsky.social @roygbivv.bsky.social @robfour.bsky.social
And the rest of the Berkeley freshwater labs crew
December 16, 2024 at 3:54 PM
Very heartening to see so many coho salmon spawning here on the central California coast.

🐟🧪🌎
December 16, 2024 at 3:54 PM
Having done much of my dissertation work on tui chub, I have a soft spot in my heart for chubs. They are definitely under appreciated. Re-reading A Sand County Almanac recently, I found that even Aldo Leopold, hero for unsung species, finds chubs to be a disappointment.
November 26, 2024 at 3:40 PM