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Ces populations sont fragmentées et limitées géographiquement à une région hautement urbaine et agricole exposée à la perte et à la dégradation continues de l’habitat.
A widespread deciduous tree of eastern North America that is known from a single small population in Ontario. This population has declined considerably over the past four decades with fewer than 15 trees remaining in the wild. Its habitat is surrounded by residential development and the population is at continued risk from storms, erosion and habitat loss and degradation.
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L’espèce est confinée à quelques petites zones de plus en plus isolées qui font l’objet d’une agriculture intensive, où l’on enregistre une forte population humaine ainsi qu’une densité très élevée de routes. Les routes fragmentent les populations, ce qui augmente la probabilité de disparition du pays. La région ne renferme pas de grandes zones protégée ...
The species is restricted to open, active sand areas that are both fragmented and declining.  Although it may be common where found, it occurs in a small proportion of the total seemingly suitable sites and has been lost from historical localities.  Dispersal between dune systems is considered to be extremely unlikely.  Since the 1940’s, the area of suitable habitat has declined by an estimated 10-20% per decade.
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Dans cette région, cette espèce nage de longues distances, souvent dans des eaux libres, froides et houleuses où elle est sujette à une mortalité attribuable à la circulation accrue de bateaux.
The species is confined to a few small increasingly disjunct areas that are subject to intensive agriculture, high human populations and extremely high densities of roads. Roads fragment populations leading to increased probability of extirpation. There are no large protected, roadless areas for this species in this region. The species is also subject to persecution and illegal collection for the wildlife trade.
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La sous-espèce n'existe au Canada que dans le sud-est de l'île de Vancouver et la région sud des îles Gulf adjacentes, où on la retrouve en 14 petites populations circonscrites et grandement fragmentées.
The subspecies is only known in Canada from southeastern Vancouver Island and the adjacent southern Gulf Islands where it occurs as 14 mainly small, localized populations that are highly fragmented. This short-lived perennial is restricted to Garry oak woodlands and maritime meadows where habitat is continuing to decline in quality due to such factors as the spread of exotic invasive grasses as well as the spread of trees and shrubs as a result o ...
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Cette petite espèce de méné ne se retrouve que dans la rivière Milk, dans le sud de l’Alberta, une région caractérisée par des conditions de sécheresse dont la fréquence et la gravité augmentent.
In Canada, this subspecies is distributed along the coast of British Columbia with a relatively small population that is concentrated at a few breeding colonies in southern British Columbia. There is evidence of declines in productivity and it is unclear whether the population is stable or declining. Threats from eagle predation, habitat loss and human disturbance are ongoing, particularly in the southern part of the range where concentrations of ...
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À l’échelle mondiale, cette espèce de satyre est confinée à dix marais salés dans la petite région de la baie des Chaleurs et de la Gaspésie. Seulement trois populations sont suffisamment grandes pour rendre une survie à long terme probable.
This species, known from only one small lake in southwestern Quebec, has undergone a drastic decline in abundance over the past 15 years (3 generations). The decline may be related to a combination of factors including habitat degradation and loss resulting from urban and agricultural development, the introduction of non-native species (e.g. Rainbow Smelt and Atlantic Salmon), and climate change.
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Elle possède 7 branchies quasi circulaires de chaque côté de la région branchiale, 1 seule narine sur le dessus de la tête et 1 bouche ronde qui ressemble à un disque.
Adult Fowler’s Toads, Anaxyrus fowleri, are 50 to 80 mm in snout-vent length, with females growing larger than males. The dorsum is grey or buff, with small warts and tubercles. The belly is white with a single, dark, pectoral spot. The male’s call is a rather shrill scream. Tadpoles are up to 27 mm in total length and are mottled grey and black. Fowler’s Toads have a distinctive smell, reminiscent of unroasted peanuts. Unt ...
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Les indices d’abondance dans le cours supérieur du fleuve Saint‑Laurent et le lac Ontario ont diminué d’environ 99 % depuis les années 1970. Les seules autres séries de données de durée comparable (aucun indice à long terme n’est disponible pour la région Scotia ...
A long-lived perennial with 11 to 12 extant Canadian populations. These are fragmented and restricted geographically to a highly agricultural and urbanized region that is subject to continuing habitat loss and degradation. Populations consist primarily of vegetative rosettes with only a few flowering plants produced in a given year. The spread of invasive plants within its habitat is a major threat to the persistence of the species. Further losse ...
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Cette espèce du couvert forestier de la zone carolinienne du sud de l’Ontario est présente sous la forme d’une série de petites populations réparties dans une région au couvert forestier très fragmenté.
This species is a rare bird of the Canadian prairies which is found in Alberta and Saskatchewan. The population numbers less than 250 individuals with a maximum of 11 individuals counted in one season in Canada. The species is threatened by continuing conversion of native grasslands to croplands, agricultural practices and the management of domestic livestock. The species is of particular concern in much of its range in the United States, limitin ...
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Cette herbacée vivace et voyante des habitats ripariens est restreinte à une petite région du sud-ouest de l’île de Vancouver. L’espèce a été évaluée précédemment comme étant menacée, mais est maintenant observée dans d’autres emplacements et elle est beaucoup plus abondante qu’on ne l’estimait auparavant.
This large (maximum reported length 4.8 m), heavy-bodied shark is a benthic species that is widely distributed over continental and insular shelves in temperate and tropical seas throughout the world.  In Canadian Pacific waters, it is found in inlets and along the continental shelf and slope typically at depths greater than 91 m (range 0-2500 m).  In the absence of information about population structure, it is treated as a single popul ...
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Une espèce endémique au Canada dont l'aire de répartition est grandement restreinte à une mince bande côtière de microhabitats temporairement humides, où elle est en péril à cause de la compétition permanente avec une grande variété de plantes exotiques. Sa présence dans une région fortement urbanisée se traduit par la perturbation de l'habitat et une diminution de la popu ...
A moss with a limited distribution in eastern North America, but which is widespread in Europe. Few populations have been documented in Canada, primarily in Ontario where it occurs in heavily populated and developed areas where natural habitats are widely known to be at serious risk. Although cryptic in habit, the species often grows with other small species that have well documented ranges. The species prefers woodlands, where it is usually foun ...
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Cette espèce particulière de cicindèle est répartie de façon fragmentée dans une zone d’occurrence et d’occupation de très petite superficie et ne se trouve actuellement que dans deux petites régions du réseau hydrographique de la rivière Saint-Jean.
The population was severely depleted by commercial whaling from 1848 until about 1915, a period of about 65-70 years. Since 1915, it has been subject to regular hunting for subsistence by Aboriginal people in Alaska (USA) and Chukotka (Russia) and occasional hunting by the Inuvialuit of the western Canadian Arctic. In the absence of commercial whaling, this population has been recovering and was estimated at 10,400 in 2001. Nevertheless, it is no ...
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Toutefois, sa zone d’occurrence et sa zone d’occupation semblent stables. Son principal habitat naturel dans la région de l’Okanagan, de même que les vieux champs, sont en déclin.
This subspecies has a limited range and has been found at only one location in the past 40 years; this location is isolated from others. Dispersal distance is limited and the population fluctuates. This species is commonly found in owl pellets in the USA, but none have been reported in owl pellets (including burrowing owls) in Suffield or other areas in southeast Alberta, despite substantial sampling. Owl pellet analysis is an excellent means of ...