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We walked onto a bluff padded in low-growing crowberry and Arctic thyme.

The species has a symbiotic relationship with dozens of plants, such as the medicinal herb Astragalus membranaceus, used in traditional medicine, and the rare Korean crowberry.

Surrounding the 323 reindeer carcasses were seeds of crowberry – a keystone species of alpine tundra – that scavengers were dropping around the site.

The resulting bounty used in the hotel kitchen also includes cloudberries, juniperberries, marshberries, crowberries — and snowberries, “when we can get them,” he says.

Some droppings, the researchers noticed, were blue and loaded with crowberry seeds.