The results indicate that tundra vegetation exhibits strong regional variation in response to warming, and that in vulnerable regions, cumulative effects of long-term warming on tundRA vegetation - and associated ecosystem consequences - have the potential to be much greater than the authors have observed to date.
The 18th Tuckerman Workshop, an annual gathering of professional and amateur lichenologists and mycologists from the United States and Canada, with additional participants from Puerto Rico, Peru, and Austria, was held at this locality from March 1–7, 2009, and produced a total of 432 taxa, 18 of which are new to science and 89 are additions to the North America checklist.