British Columbia Mine Reclamation Symposium

An evaluation of factors influencing spontaneous vegetation succession in northern latitude disturbances : assessment of natural recolonization of disturbances in Yukon Lister, D.


Twenty sites surveyed in Yukon in 2009 indicate that moisture availability is often a key limiting factor on natural recolonization of disturbed sites in the territory. In some cases, natural recolonization processes may also be impeded by a thickly established seeded cover, and at other sites, a seeded cover appeared to have no clear positive or negative effect relative to non-seeded sites. Five invasive species were identified at the sites surveyed, and predominantly occurred at seeded sites. The most commonly colonizing native species across the 20-site dataset are the balsam poplar (Populus balsamifera), willow (Salix spp.), and fireweed (Epilobium angustifolium) and common yarrow (Achillea millefolium).

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