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A growing understanding about the impacts of earthworms (Oligochaeta: Lumbricidae) on ecosystem processes and forest restoration necessitates an examination of their role in Canadian forests where they have become invasive. Little is known about the landscape-scale responses of earthworm populations to different regional characteristics and vegetation types within Canada’s central woodlands. We examined the regional variation of earthworm species richness, biomass, and assemblage composition across a range of four municipal regions (from south to north: Halton, Wellington, York, and Simcoe) and four habitat types (deciduous forest, mixed forest, tree plantation, and meadow) with varying soil characteristics in woodlands of south-central Ontario, Canada. In general, earthworm communities differed by region but not by habitat type. The most southern regions supported the highest earthworm species richness, biomass (i.e., Lumbricus and Octolasion), and density, and this was associated with a south-north gradient in soil characteristics. Assemblage composition differed by region but not by habitat type. The observed south-north gradient suggests an underlying effect of invasion spread associated with human settlement and density. Our results provide baseline information about earthworm communities in south-central Ontario forests and will enable managers to plan for the increasing role of earthworms in Canada’s future forests. © 2017, Canadian Science Publishing. All rights reserved.


Documento: Artículo
Título:Exotic earthworm (Oligochaeta: Lumbricidae) assemblages on a landscape scale in central Canadian woodlands: Importance of region and vegetation type
Autor:Choi, A.; Sackett, T.E.; Smith, S.M.; Bellocq, M.I.
Filiación:University of Toronto, Faculty of Forestry, 33 Willcocks Street, Toronto, ON M5S 3B3, Canada
Departamento de Ecología, Genética y Evolución, Facultad Ciencias Exactas y Naturales, Universidad de Buenos Aires, IEGEBA, CONICET, Buenos Aires, Argentina
Palabras clave:Earthworm communities; Functional groups; Invasive species; Land use; Lumbricidae; Conservation; Ecosystems; Functional groups; Land use; Soil surveys; Vegetation; Assemblage composition; Central Ontario forests; Earthworm communities; Invasive species; Lumbricidae; Regional characteristics; Regional variation; Soil characteristics; Forestry; biological invasion; biomass; community response; earthworm; ecosystem function; environmental restoration; forest ecosystem; functional group; habitat type; invasive species; land use; population density; regional pattern; soil property; species richness; vegetation type; woodland; Functional Groups; Land Use; Species Identification; Canada; Ontario [Canada]; Lumbricidae; Lumbricus; Octolasion
Página de inicio:935
Página de fin:945
Título revista:Canadian Journal of Forest Research
Título revista abreviado:Can. J. For. Res.


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---------- APA ----------
Choi, A., Sackett, T.E., Smith, S.M. & Bellocq, M.I. (2017) . Exotic earthworm (Oligochaeta: Lumbricidae) assemblages on a landscape scale in central Canadian woodlands: Importance of region and vegetation type. Canadian Journal of Forest Research, 47(7), 935-945.
---------- CHICAGO ----------
Choi, A., Sackett, T.E., Smith, S.M., Bellocq, M.I. "Exotic earthworm (Oligochaeta: Lumbricidae) assemblages on a landscape scale in central Canadian woodlands: Importance of region and vegetation type" . Canadian Journal of Forest Research 47, no. 7 (2017) : 935-945.
---------- MLA ----------
Choi, A., Sackett, T.E., Smith, S.M., Bellocq, M.I. "Exotic earthworm (Oligochaeta: Lumbricidae) assemblages on a landscape scale in central Canadian woodlands: Importance of region and vegetation type" . Canadian Journal of Forest Research, vol. 47, no. 7, 2017, pp. 935-945.
---------- VANCOUVER ----------
Choi, A., Sackett, T.E., Smith, S.M., Bellocq, M.I. Exotic earthworm (Oligochaeta: Lumbricidae) assemblages on a landscape scale in central Canadian woodlands: Importance of region and vegetation type. Can. J. For. Res. 2017;47(7):935-945.