Marcelle Grenier

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Most landscape definitions in the western world are based on soil, climatic, or physiographic features and do not integrate humans as an integral part of the landscape. We present an approach where landscape types have been delineated in southern Québec, Canada based on current land use where anthropogenic and agricultural activities are concentrated as a(More)
Quantifying remaining forest cover and understanding how thefragmentation process operates with respect to the various land-use practicesare important steps when working to preserve the biodiversity associated withwoodlots in agricultural landscapes. We used LANDSAT satellite imagery, soiltypes, and boundaries of regional county municipalities (RCM) as the(More)
The traditional method of identifying wildlife habitat distribution over large regions consists of pixel-based classification of satellite images into a suite of habitat classes used to select suitable habitat patches. Object-based classification is a new method that can achieve the same objective based on the segmentation of spectral bands of the image(More)
The loggerhead shrike (Lanius ludovicianus) is a grassland bird species whose preferred nesting habitat in eastern Canada is pastureland. This species has been extirpated from much of its historical range in this region, and breeding habitat loss is suspected to be an important cause of this decline. We evaluated the availability of suitable breeding(More)
Reintroductions of endangered species are controversial because of high costs and frequent failures. However, the population of black-footed ferrets descended from animals released in Shirley Basin, Wyoming, from 1991 to 1994 has grown rapidly after a decline to a low of five animals in 1997. Beginning around 2000, the population grew rapidly to an(More)
During its spring and fall migrations, the Greater Snow Goose (Chen caerulescens atlanticus) stages in the marshes along the St. Lawrence Estuary in southern Quebec, where it feeds on three-square bulrush (Schoenoplectus americanus) rhizomes. The goose population has grown from 70 000 birds to around one million over the last 40 years, thus increasing(More)
Landsat images covering the St. Lawrence Lowlands (30,000 km(2)) and Appalachians (33,000 km(2)) ecoregions of southern Québec, Canada, have been classified for the years 1993 and 2001 to (1) quantify land use/land cover (LULC) changes and changes to agricultural landscapes and (2) relate LULC changes to changes of farm-related descriptors of economic and(More)
The inspection of aerospace materials such as composites, honeycomb structures, ceramics and GLARE has been the subject of many studies in the NonDestructive Testing and Evaluation (NDT&E) community. Active thermography techniques have shown to be an interesting alternative or complementary to other classical NDT&E techniques. Nevertheless, the different(More)
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