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High prevalences of hindlimb deformities were recorded in wild-caught green frogs (Rana clamitans), northern leopard frogs (Rana pipiens), American toads (Bufo americanus), and bullfrogs (RanaExpand
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Mercury Accumulation and Biomagnification in Ospreys (Pandion haliaetus) in the James Bay and Hudson Bay Regions of Québec
Abstract. Mercury exposure was examined in adults and nestlings of ospreys (Pandion haliaetus) from lakes, rivers, and hydroelectric reservoirs in northern Québec between 1989 and 1991 by assessingExpand
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Assessment of Contamination and Biomarker Responses in Two Species of Herons on the St. Lawrence River
This study was undertaken to validate potential biomarkers of exposure and effects due to chemical contaminants in breedingcolonies of the Great Blue Heron and the Black-crowned Night-Heron on theExpand
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Comparative study of contaminants in the mudpuppy (amphibia) and the common snapping turtle (reptilia), St. Lawrence River, Canada
Levels of organochlorine pesticides, polychlorinated biphenyl (PCB) congeners and mercury were measured in mudpuppy bodies, livers and gonads and in snapping turtle eggs to determine how theExpand
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Modelling Wetland Bird Response to Water Level Changes in the Lake Ontario – St. Lawrence River Hydrosystem
Lake Ontario and St. Lawrence River (LOSL) wetland bird abundance and diversity are greatly influenced by lake and river hydrology. Our study used an interdisciplinary ecosystem approach, blendingExpand
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Population trends in selected species of farmland birds in relation to recent developments in agriculture in the St. Lawrence Valley
Abstract Changes in the populations of 28 species of birds typical of farmland habitats were assessed using data from seven Breeding Bird Survey (BBS) routes surveyed in southern Quebec over the lastExpand
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Changes in breeding bird richness and abundance in Montreal parks over a period of 15 years
We compared the breeding bird population and vegetation structure of 201 randomly selected 1 ha plots in 49 urban parks in Montreal, 15 years apart (in 1979‐1981 and 1994). The constancy of 17 birdExpand
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Spatial analysis of black spruce (Picea mariana [MILL] B.S.P.) radial growth response to climate in northern Québec-Labrador Peninsula, Canada.
The aim of this study is to analyze the relationships between black spruce (Picea mariana (Mill.) B.S.P.) growth and climate at a large spatial scale in North America’s northeastern boreal forest.Expand
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Flow cytometric assay for in vivo genotoxic effects of pesticides in Green frogs (Rana clamitans)
Frogs from farming regions in Quebec suffer a suite of physical and physiological problems associated with the use of agricultural pesticides. Flow cytometry was used to compare incidence of abnormalExpand
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Contamination of local wildlife following a fire at a polychlorinated biphenyls warehouse in St Basile le Grand, Quebec, Canada
This study on wildlife contamination, one to ten months after the polychlorinated biphenyls (PCB) fire in St Basile le Grand, Quebec, shows that the fire increased PCB and polychlorinatedExpand
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