Document


Title

Origin of the lichen woodland at its southern range limit in eastern Canada: the catastrophic impact of insect defoliators and fire on the spruce-moss forest
Document Type: Journal Article
Author(s): Serge Payette; N. Bhiry; Ann Delwaide; Martin J. Simard
Publication Year: 2000

Cataloging Information

Keyword(s):
  • Abies balsamea
  • allelopathy
  • arthropods
  • Betula papyrifera
  • boreal forests
  • Canada
  • charcoal
  • Choristoneura
  • Choristoneura fumiferana
  • Cladina
  • Cladonia
  • crowns
  • dendrochronology
  • distribution
  • disturbance
  • ecosystem dynamics
  • fire exclusion
  • forest management
  • fossils
  • hardwood forests
  • histories
  • insects
  • Kalmia angustifolia
  • lichens
  • mosses
  • paleoecology
  • Picea mariana
  • pine forests
  • pine hardwood forests
  • Pinus banksiana
  • Pleurozium schreberi
  • population density
  • post fire recovery
  • Pseudotsuga menziesii
  • Quebec
  • regeneration
  • soil nutrients
  • soil temperature
  • stand characteristics
  • statistical analysis
  • succession
  • tundra
  • Vaccinium angustifolium
Record Maintained By:
Record Last Modified: December 3, 2018
FRAMES Record Number: 37545
Tall Timbers Record Number: 12025
TTRS Location Status: In-file
TTRS Call Number: Journals-C
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.

Description

The lichen woodland is one of the most important forest ecosystems in North America. dominating the central part of the boreal forest. The southernmost lichen woodland is paradoxically in the heart of the southern boreal forest. This distribution prompted this study aiming to identify the factors responsible for the inception and development of the lichen woodland at its southern range limit in eastern Canada. We tested the hypothesis that the southern lichen-spruce woodland is a regressive, post-fire type of the spruce-moss forest. We studied adjacent lichen-spruce and spruce-moss stands growing under similar soil conditions. We reconstructed the recent history of spruce-moss forest transformation to lichen woodland using tree size, tree ring patterns, and macrofossil analysis of organic soil. All the plant macrofossils buried in the unburned organic mat below the charcoal layer of the last fire corresponded to a feather-moss forest assemblage and included head capsules of the spruce budworrn (Choristoneura fumiferana (Clem.)) or European spruce sawfly (Gilpinia hercyniae Hartig.). The impact of combined insect and fire disturbances translates into a dramatic decrease in post-fire tree regeneration of the forest inducing the shift to lichen woodland. The inception of the southern lichen woodland highlights the fragility of the spruce-moss forest even in the core area of the southern commercial boreal forest.© National Research Council of Canada. Abstract reproduced by permission.

Citation:
Payette, S., N. Bhiry, A. Delwaide, and M. Simard. 2000. Origin of the lichen woodland at its southern range limit in eastern Canada: the catastrophic impact of insect defoliators and fire on the spruce-moss forest. Canadian Journal of Forest Research, v. 30, no. 2, p. 288-305.