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New publication: How more than a century of climate change affected Joshua tree flowering

More than a century ago, in mid-June 1924, the Los Angeles Times devoted a photo spread and several column inches to the second-hand vacation story of some “Cadillac tourists” who saw Joshua trees bearing fruit. It meant, the Times reported, that rain was coming. M.C. Ellison of Sacramento, who has been touring Southern California in…

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Talking BARTs in Bavaria

Late last summer, Colin Carlson messaged me with an unusual proposal: He’d been invited to give a workshop on Bayesian additive regression trees and embarcadero, his package of BART-training utilities for R. The workshop would be in Germany, and Colin couldn’t make that trip. But, since our current collaboration drew heavily on embardacero, could he…

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New publication: An “unprecedented” map of Joshua tree populations

One of the biggest challenges for studying biodiversity is answering a seemingly simple question, where does this species live? If we know where a species occurs, we can describe the habitat that it needs, assess how large and stable its populations are, and make informed predictions about what will happen to those populations if we…