Document


Title

Microsite displacement of terrestrial lichens by feather moss mats in late seral pine-lichen woodlands of north-central British Columbia
Document Type: Journal
Author(s): R. Sulyma ; D. S. Coxson
Publication Year: 2001

Cataloging Information

Keyword(s):
British Columbia; Canada; Cladina; crowns; feather moss; fire exclusion; fire management; forest management; lichens; lodgepole pine; mosses; Pinus contorta; Pleurozium schreberi; vascular plants; wildfires
Region(s):
Alaska; International; Northwest
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 51350
Tall Timbers Record Number: 28191
TTRS Location Status: Not in file
TTRS Call Number: Available
TTRS Abstract Status: Okay, Fair use, 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.

Description

Pine-lichen woodlands in north-central British Columbia show a long period of successional development where reindeer lichens (Cladina spp.) dominate plant cover at the forest floor surface. However, in mid- to late-successional stands lichen cover is replaced in a mosaic of surface microsites by feather moss mats (largely Pleurozium schreberi), with moss mats often burying lichen mats that previously had occupied these microsites. We have compared moss and lichen dominated microsites at this stage of stand development, looking at the influence of canopy structural variables and development of forest floor plant communities on microsite expression. Microsites with high feather moss mat cover had greater canopy leaf area index values, compared to microsites where lichen cover predominated. Leaf area index values were highly correlated with stand level structural variables, including basal area, total volume, and biomass of the dominant canopy tree species Pinus contorta. Changes in stand architecture were further associated with the accumulation of litter and organic matter at the forest floor surface. These factors suggest that the manipulation of stand structure in managed forests, for instance through partialcut harvesting, may delay successional changes and promote continued lichen growth in these forest types. This is an important consideration in the management of pine-stands in northern B.C., where lichen mats provide significant forage values for caribou populations. © 2021 by the American Bryological and Lichenological Society, Inc.

Citation:
Sulyma, R., and D. S. Coxson. 2001. Microsite displacement of terrestrial lichens by feather moss mats in late seral pine-lichen woodlands of north-central British Columbia. Bryologist, v. 104, no. 4, p. 505-516.