zones riveraines – English Translation – Keybot Dictionary

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Sa répartition canadienne actuelle se restreint aux zones riveraines du centre sud de l’île d’Anticosti, aux cours d’eau se jetant sur la côte nord de la baie des Chaleurs, dans la péninsule gaspésienne, au lac Saint-Jean (une localité, à Mashteuiatsh), et le long des cours d’eau rap ...
The Poweshiek Skipperling was listed as Threatened under the Species at Risk Act in July 2005. The Minister of Environment is the competent minister for the recovery of the Poweshiek Skipperling and has prepared this strategy, as per section 37 of SARA. It has been prepared in cooperation with government of Manitoba.
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La plupart des mentions de l’espèce sont dans des peuplements forestiers de conifères ombragés plus âgés allant d’approximativement 50 ans à plus de 200 ans. L’espèce occupe souvent des zones riveraines et autres microsites très humides.
This subspecies of caribou is endemic to the Canadian Arctic Archipelago, living on the edge of plant growth in polar desert and arctic tundra environments. The current population is estimated at 13,200 mature individuals. From a population high of 22,000 in 1987, the species experienced a catastrophic die-off in the mid-1990s related to severe icing events in some parts of its range. The population was ca. 5,400 mature individuals in 1996, the l ...
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La plupart des mentions de l’espèce sont dans des peuplements forestiers de conifères ombragés plus âgés allant d’approximativement 50 ans à plus de 200 ans. L’espèce occupe souvent des zones riveraines et autres microsites très humides.
In Canada, this slug is confined to a small area in the Kootenay region of southeastern British Columbia, generally within 25 km of the Canada-U.S. border. Most records are from older shady coniferous forest stands ranging from approximately 50 to >200 years. The species often inhabits riparian areas and other very moist microsites. Threats include logging and wood harvesting, and projected consequences of climate change including an increase in drought condition and wildfires. A decline is projected in the area, extent, and quality of habitat. The low number of scattered subpopulations makes the species vulnerable to both natural and human disturbances.
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Les menaces incluent les routes existantes et nouvelles résultant en la fragmentation, des effets de lisière accrus, et des obstacles à la dispersion; la prédation et la compétition des espèces envahissantes; l’endommagement des zones riveraines associé au pâturage du bétail; la perte et la dégradation de l’habitat liées à l’exploitation forestière; et les conséquences prévues des changements climatiques, incluant un accroissement des conditions de sécheresse ainsi qu’une augmentation du nombre d’incendies de forêt et de leur gravité.
In Canada, this small slug is confined to the moist forests of the northern Columbia basin of British Columbia. It is found in moist mixed-wood and coniferous forests and commonly associated with riparian habitats along small creeks. Key habitat requirements include high substrate moisture with abundant woody debris and leaf litter for shelter. Threats include: existing and new roads resulting in fragmentation, increased edge effects, and barriers to dispersal; predation and competition from invasive species; damage to riparian areas associated with livestock grazing; habitat loss and degradation associated with logging activities; and, projected consequences of climate change, including an increase in drought conditions and an increase in both the number and severity of wildfires.
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Lors d’un relevé systématique de l’utilisation de l’habitat par la Petite Nyctale de Haida Gwaii pendant la saison de reproduction (Gill et Cannings, 1997), les chouettes ont été le plus souvent observées à proximité des zones riveraines et dans des habitats contenant une plus grande superficie de forêt ancienne et mature.
In a systematic survey of habitat use by Haida Gwaii Saw-whet Owls during the breeding season, Gill and Cannings (1997) found that owls were detected more often at points closer to riparian areas and in habitats containing greater amounts of mature and old forest. They found that elevation, distance to saltwater and distance to a change in habitat type did not influence the likelihood of detecting an owl. As well, the condition of male owls in the breeding season appears to be appreciably lower when territories contain less mature and old forest. When the mature and old forest content within 500 m of a territory core falls below 60-70%, significant declines in calling rate, an indirect measure of condition, of the territory occupants have been noted (Holschuh 2004b, Holschuh and Otter submitted). Active owl sites were all found below 300 m elevation despite searches that included higher elevations. Active sites have been mostly in the CWHwh1 (submontane wet hypermaritime coastal western hemlock variant) and CWHvh2 (central very wet hypermaritime coastal western hemlock variant) biogeoclimatic zones. Although some owl sites have been located in the higher elevation CWHwh2 (montane wet hypermaritime coastal western hemlock variant), none have been detected in the mountain hemlock or alpine tundra biogeoclimatic zones on Haida Gwaii. Although survey logistics largely inhibit placing call playback surveys in these high-elevation habitats, calling owls at higher elevations would have been in earshot during numerous surveys conducted at lower elevations.