Alaska Arctic Vegetation Unit P2.1
- Bioclimate Subzones
- Floristic Provinces
- Lake Cover
- NDVI and Phytomass
- Substrate Chemistry
Lush lichen growth on Hall Island, St. Matthews group. Dry tundra. 1985. Photo: D.R. Klein.
The thick mats of fruticose lichens that dominated much of the landscape in the southern portion of St. Matthew Island prior to the introduction of reindeer had been greatly depleted by reindeer grazing when vegetation plots were established there (Station #2) in early August 1957. Only fragments of fractured lichens and moss remained on the ground surface in the depressions between the dark green willow hummocks. Photo: 1957. D.R. Klein.
This lichen-dominated plant community with scattered hummocks of willow is on Hall Island that was never reached by the reindeer. It serves as a control for assessing the grazing impact of reindeer on similar communities on St. Matthew Island. Photo: D.R. Klein.