Articles on Ecology

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Tree canopy like in this Wyoming forest affects stream flow, the climate and life on land. Elyna Grapstein/BLM

Ancient forests took 100,000 years to recover from the last global warming period similar to today – Wyoming fossils reveal what happened

Understanding what happened in these forests 56 million years ago may help humanity recognize similar thresholds before we cross them again, the lead author of a new study writes.
Chinook salmon try to jump a closed gate at a fish hatchery. Supercaliphotolistic/iStock Images Plus via Getty Images

California’s salmon fishery is reopening after a population crash led to a 3‑year closure, but that doesn’t mean all is well

Salmon have faced a boom-bust cycle for years. Making their recovery last longer will require some big changes, including how hatcheries produce fish.

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