LesmerisesOuelletSt-Laurent2011

Référence

Lesmerises, R., Ouellet, J.-P. and St-Laurent, M.-H. (2011) Assessing terrestrial lichen biomass using ecoforest maps: A suitable approach to plan conservation areas for forest-dwelling caribou. Canadian Journal of Forest Research, 41(3):632-642. (Scopus )

Résumé

Terrestrial lichens are an important part of the winter diet of forest-dwelling caribou (Rangifer tarandus caribou (Gmelin, 1788)), and developing forest management guidelines to support high lichen biomass could enhance both individual- and population-level health of this threatened species. Our objective was to develop an index to assess terrestrial lichen biomass available to caribou at the landscape scale using ecoforest maps based on forest characteristics (age, density, and height) and geographical variables (slope, altitude, and latitude). We sampled 439 sites within 8340 km 2 of the spruce-moss domain located >100 km north of the Saguenay River (Quebec, Canada). Since they are known to support terrestrial lichen, we sampled only spruce-dominated stands older than 50 years, representing 41.8% of the study area. Using a two-step approach, we first modeled lichen occurrence and thereafter lichen biomass in sites where lichens were found. Lichen occurrence was positively correlated with latitude but negatively with stand age, height, and density. Lichen biomass was primarily a function of altitude and tree density. Using this index could prioritize conservation of areas that are most likely to contain high lichen biomass, thus favoring caribou population maintenance in logged landscapes.

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@ARTICLE { LesmerisesOuelletSt-Laurent2011,
    AUTHOR = { Lesmerises, R. and Ouellet, J.-P. and St-Laurent, M.-H. },
    TITLE = { Assessing terrestrial lichen biomass using ecoforest maps: A suitable approach to plan conservation areas for forest-dwelling caribou },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2011 },
    VOLUME = { 41 },
    PAGES = { 632-642 },
    NUMBER = { 3 },
    NOTE = { cited By 1 },
    ABSTRACT = { Terrestrial lichens are an important part of the winter diet of forest-dwelling caribou (Rangifer tarandus caribou (Gmelin, 1788)), and developing forest management guidelines to support high lichen biomass could enhance both individual- and population-level health of this threatened species. Our objective was to develop an index to assess terrestrial lichen biomass available to caribou at the landscape scale using ecoforest maps based on forest characteristics (age, density, and height) and geographical variables (slope, altitude, and latitude). We sampled 439 sites within 8340 km 2 of the spruce-moss domain located >100 km north of the Saguenay River (Quebec, Canada). Since they are known to support terrestrial lichen, we sampled only spruce-dominated stands older than 50 years, representing 41.8% of the study area. Using a two-step approach, we first modeled lichen occurrence and thereafter lichen biomass in sites where lichens were found. Lichen occurrence was positively correlated with latitude but negatively with stand age, height, and density. Lichen biomass was primarily a function of altitude and tree density. Using this index could prioritize conservation of areas that are most likely to contain high lichen biomass, thus favoring caribou population maintenance in logged landscapes. },
    CODEN = { CJFRA },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/X10-229 },
    ISSN = { 00455067 },
    KEYWORDS = { Conservation areas; Forest management; Forest-dwelling caribou; Landscape scale; Quebec , Canada; Spruce-moss; Stand age; Study areas; Threatened species; Tree density; Two-step approach, Apartment houses; Buildings; Conservation; Forestry, Biomass, coniferous tree; conservation planning; deer; forest cover; forest management; lichen; phytomass; sampling; vegetation mapping, Age; Biomass; Buildings; Canada; Conservation; Density; Forest Management; Forestry; Lichens, Canada; Quebec [Canada]; Saguenay, Bryophyta; Picea; Rangifer tarandus; Rangifer tarandus caribou },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-79952227899&partnerID=40&md5=aa0aabc8d2b86831263d8dbf116a91f0 },
}

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