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One example of this is found in mixed forests, which contain coniferous evergreen tree species whose ancestors lived over 300 million years ago.

It tore through more than 4,000 acres of dense coniferous forest near the Seattle City Light’s hydropower dams and two towns that house staff.

This pattern has been identified as one of the unexpected symptoms of climate change, and its impact on the chickadees is providing an early warning of the disruptions ahead within these coniferous forest ecosystems.

They were also more likely to consume seeds on the spot in coniferous forests than in broadleaf forests, again probably because of the availability of other food stores.

The ancient pollen record shows coniferous forests and grasslands characterized the region, able to support foraging and hunting by humans.