VilleneuveGrandtnerFortin1991

Référence

Villeneuve, N., Grandtner, M.M. and Fortin, J.A. (1991) The coenological organization of ectomycorrhizal macrofungi in the Laurentide mountains of Quebec. Canadian Journal of Botany, 69(10):2215-2224.

Résumé

Ectomycorrhizal macrofungus communities were classified across a sequence of four forest associations in the Laurentide Mountains. Cluster analysis was used to delimit two types of coenological units: grouping and sociological group. Three macrofungal groupings and two subgroupings, which vary with physiognomic and floristic-edaphic parameters of the forest sites, were delimited. Each of these grouping units is characterized by one of the six delimited sociological groups of fungi that are consecutively replaced following changes in latitude and altitude. When considering the similarity of species composition, Laurentide groupings appear to be isolated from other macrofungal assemblages in North American temperate forests and mainly affected by geographic partitioning of sites and by the physiognomy and type of forest vegetation within a given phytoclimatic region. As seen by the respective richness at the family level, Eurasian and Laurentide communities show similar patterns of zonal distribution, mainly owing to the role of climatic factors. A numerical analysis supported the hypothesis that the edaphic environment, as well as the vascular vegetation, might exert a significant influence on the delimitation and distribution of ectomycorrhizal communities. The interdependence of ectomycorrhizal communities and phytocoenoses at the ecosystem level is discussed.

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@ARTICLE { VilleneuveGrandtnerFortin1991,
    AUTHOR = { Villeneuve, N. and Grandtner, M.M. and Fortin, J.A. },
    TITLE = { The coenological organization of ectomycorrhizal macrofungi in the Laurentide mountains of Quebec },
    JOURNAL = { Canadian Journal of Botany },
    YEAR = { 1991 },
    VOLUME = { 69 },
    PAGES = { 2215-2224 },
    NUMBER = { 10 },
    NOTE = { Villeneuve, n grandtner, mm fortin, ja },
    ABSTRACT = { Ectomycorrhizal macrofungus communities were classified across a sequence of four forest associations in the Laurentide Mountains. Cluster analysis was used to delimit two types of coenological units: grouping and sociological group. Three macrofungal groupings and two subgroupings, which vary with physiognomic and floristic-edaphic parameters of the forest sites, were delimited. Each of these grouping units is characterized by one of the six delimited sociological groups of fungi that are consecutively replaced following changes in latitude and altitude. When considering the similarity of species composition, Laurentide groupings appear to be isolated from other macrofungal assemblages in North American temperate forests and mainly affected by geographic partitioning of sites and by the physiognomy and type of forest vegetation within a given phytoclimatic region. As seen by the respective richness at the family level, Eurasian and Laurentide communities show similar patterns of zonal distribution, mainly owing to the role of climatic factors. A numerical analysis supported the hypothesis that the edaphic environment, as well as the vascular vegetation, might exert a significant influence on the delimitation and distribution of ectomycorrhizal communities. The interdependence of ectomycorrhizal communities and phytocoenoses at the ecosystem level is discussed. },
}

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