 This study uses field data and satellite imagery to model lichen cover for a 583,200 square kilometers area that encompasses nine Karibu ranges in interior Alaska and Yukon. The researchers found that Karibu avoided lichen poor areas and showed stronger selection as lichen cover increased. They created a landscape scale map of lichen cover that incorporates extensive field data for model training and validation, which will be useful for understanding trends in lichen abundance and distribution, as well as for Karibu research, management and conservation. This article was authored by Matthew J. McCander, Eric C. Palm, Gerald V. Frost and others.