Patterns of lichen diversity in Yellowstone National Park
Document Type: Journal Article
Author(s): S. Eversman; C. M. Wetmore; K. Glew; J. P. Bennett
Publication Year: 2002

Cataloging Information

  • Bryoria
  • Douglas-fir
  • Engelmann spruce
  • fire exclusion
  • fire management
  • forest management
  • Letharia vulpina
  • lichens
  • lodgepole pine
  • mercury
  • microclimate
  • Picea engelmannii
  • Pinus albicaulis
  • Pinus contorta
  • Pseudotsuga menziesii
  • S - sulfur
  • whitebark pine
  • wildfires
  • Wyoming
  • Yellowstone National Park
Record Maintained By:
Record Last Modified: June 12, 2018
FRAMES Record Number: 51326
Tall Timbers Record Number: 28164
TTRS Location Status: Not in file
TTRS Call Number: Available
TTRS Abstract Status: Fair use, Okay, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.


We here report 359 species in 103 genera from Yellowstone National Park. We found 71.3% of the total number of species in Picea engelmannii forests and 57.4% of the total number in Pseudotsuga menziesii stands. This compares to 42.3% of the species in Pinus contorta and 37.0% of the species in Pinus contorta/Pinus albicaulis stands. The presence of old Pseudotsuga menziesii and mature Picea engelmannii indicates that the forests have not burned for at least 300 yr, contributing to higher lichen diversity. The drier lodgepole pine and whitebark pine forests burn more frequently than every 300 yr and have fewer microhabitats for lichen growth. Species with thalli large enough to identify are beginning to recolonize substrates burned in the 1988 fires. Bryoria fremontii and Letharia vulpina exhibit levels of mercury and sulfur higher than those in other specimens in the region. © 2021 by the American Bryological and Lichenological Society, Inc.

Eversman, S., C. M. Wetmore, K. Glew, and J. P. Bennett. 2002. Patterns of lichen diversity in Yellowstone National Park. Bryologist, v. 105, no. 1, p. 27-42.