ABSTRACT
In Quebec, there is a paucity of studies dealing with detailed and local paleoecological reconstructions with the use of different integrated techniques. The paleoecological reconstruction was prompted by the particular geomorphic context of the coastal plain, which led to the development of a peat bog at the edge of the marsh. The zonation was guided by the objective of local paleoecological reconstruction and hence, was not included in successional series. Local and detailed study of the Isle-Verte peat bog and the integration of different analytical techniques confirm the capability of detecting century-scale environmental changes associated with allochthonous factors that can modify the internal dynamism of peat ecosystems. Major shifts, as registered in vegetation and animal assemblages of subzones 2d of the three cores of the Isle-Verte peat bog, indicate that allochthonous and/or autogenous factors can influence the internal dynamism of an ecosystem.
