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- COSEWIC Status Reports (1006 record(s) found.)
COSEWIC Status Reports
COSEWIC Assessment and Status Report on the Sea Otter (Enhydra lutris) in Canada (2023)
This marine mammal was extirpated from British Columbia in the Pacific maritime fur trade by the early 1900s. It was reintroduced to British Columbia during 1969 to 1972. The population has since grown to about 4000 mature individuals, which is 15% of the estimated historical number. The species occupies 33-50% of its historical range in British Columbia but is not yet clearly secure in Canada. It is particularly susceptible to the effects of its ...
COSEWIC Assessment and Status Report on the Skillet Clubtail (Gomphurus ventricosus) in Canada (2023)
Skillet Clubtail is one of the most striking dragonfly species in Canada. Adults are characterized by a flat, pan-like expansion at the end of their otherwise slim abdomen. The body length is 45-48 mm long, dark brown and black, with conspicuous yellow markings on the dorsal abdomen, greenish-yellow markings on the thorax, dark green eyes, and clear wings. Note: This COSEWIC assessment was received by the Minister on November 17, 2022.
COSEWIC Assessment and Status Report on the Meadow Thistle (Cirsium scariosum) Rocky Mountain population, Mingan population in Canada (2023)
Meadow Thistle (Cirsium scariosum var. scariosum) is a herbaceous perennial plant with an erect flowering stem arising from a leafy rosette. It is 10-100 cm tall and has pink to purple flowers. Note: This COSEWIC assessment was received by the Minister on November 17, 2022.
COSEWIC Assessment and Status Report on the Pumpkin Ash (Fraxinus profunda) in Canada (2023)
Pumpkin Ash (Fraxinus profunda) is a medium-sized, broad-leaved hardwood tree in the Olive Family (Oleaceae). It was first discovered in Canada in 1992. The opposite, pinnately-compound leaves are 20 to 45 cm long with leaflets which are densely pubescent on the bottom surface or, occasionally, only on the veins. Pumpkin Ash has the largest winged fruit (samaras) of any ash. Like most ash species in Canada, Pumpkin Ash is threatened by Emera ...
COSEWIC Assessment and Status Report on the Vancouver Island Shieldback (Steiroxys cf. strepens) in Canada (2023)
Vancouver Island Shieldback (Steiroxys cf. strepens Fulton 1930) is a 25-30 mm (body length) katydid in the family Tettigoniidae. Shieldback katydids are characterized by their short, robust bodies and thin antennae that are longer than the body. Note: This COSEWIC assessment was received by the Minister on November 17, 2022.
COSEWIC Assessment and Status Report on the Dukes’ Skipper (Euphyes dukesi) in Canada (2023)
Dukes’ Skipper (Euphyes dukesi) is a large (wingspan 31-37mm) dark skipper with rounded wing edges. The species is sexually dimorphic. Males have sooty-black wings, occasionally showing orange along the forewing costa (forewing front edge) and the centre of the hindwing. Females are dark brown, sometimes showing one or two orange spots in the centre of the forewing. The underside in both sexes is orange-brown with a pale orange-yellow streak runn ...
COSEWIC assessment and status report on the Brassy Minnow (Hybognathus hankinsoni) Pacific population, Western Arctic population, Missouri population in Canada (2023)
Brassy Minnow is moderately deep-bodied and compressed, olive-green dorsally and brassy-yellow to dull silver laterally. The head is broad, and the snout overhangs a small mouth that does not extend back as far as the front margin of the eye. It has large cycloid scales, no barbels, a complete lateral line, and a black peritoneum and long, complexly coiled gut. The largest specimen reported in western Canada (from Musreau Lake, Alberta) measured ...
OSEWIC Assessment and Status Report on the Seaside Bone Lichen (Hypogymnia heterophylla) in Canada (2023)
Hypogymnia heterophylla (Seaside Bone Lichen) is a large lichen with hollow, inflated, mostly ascending-spreading lobes that are irregular in width and which usually bear lateral lobules. The lichen is epiphytic and can grow to be 8 cm or more in diameter. The lichen has a whitish upper surface and black lower surface. Seaside Bone Lichen is locally abundant. It occurs in three areas in coastal British Columbia, where it represents the northernmo ...
COSEWIC assessment and status report on the Bobolink (Dolichonyx oryzivorus) in Canada (2023)
Bobolink is a medium-sized songbird in the blackbird family. During the breeding season, males are black, splashed with white and gold on their upperparts. Females, juveniles, and males outside the breeding season, are beige, streaked with brown, and are frequently mistaken for a large sparrow. No subspecies or genetic distinctions are recognized. Bobolink is an obligate grassland specialist and a consumer of agricultural insect pests. Note: Thi ...
COSEWIC Status Appraisal Summary on the Threaded Vertigo (Vertigo rowellii) in Canada (2023)
In Canada, this minute terrestrial snail is at the northern edge of its global range. The species is found in lowland areas around the Strait of Georgia and on southern Vancouver Island with most individuals living on the bark of Bigleaf Maple. Note: This COSEWIC assessment was received by the Minister on November 17, 2022.
COSEWIC Assessment and Status Report on the Northern Oak Hairstreak (Satyrium favonius ontario) in Canada (2023)
Northern Oak Hairstreak (Satyrium favonius ontario) is a small (wingspan 24-38 mm) brownish-grey butterfly with hindwing tufts (also called tails). Wing undersides are brownish grey with prominent orange patches near the hindwing margins and a blue patch below the lower tail. There is a series of white and black dashed lines on the hindwing undersides and the white median line forms an obvious “W” marking above the blue patch. Larvae are yellowis ...
COSEWIC Assessment and Status Report on the American Marten Martes americana atrata Newfoundland population in Canada (2023)
The Newfoundland population of American Marten (Martes americana atrata) is a geographically isolated and genetically and ecologically distinct designatable unit found only on the island of Newfoundland. Compared to other subspecies of marten, this population consists of animals that are larger and have darker pelage. Marten is one of only 14 mammals native to Newfoundland. The unique genetic characteristics and ecology of Newfoundland Marten mak ...
COSEWIC Assessment and Status Report on the Dense Draba (Draba pycnosperma) in Canada (2023)
Dense Draba is a small perennial plant that grows in dense clumps. Basal rosette leaves are covered with four-rayed cross-shaped hairs, which are sometimes spurred or branched. Flower stalks bear 5–40 white flowers and one to four leaves. The plump inflated dry fruits contain seeds that overlap in shingle-like fashion and that are turned obliquely to the thin wall dividing the two fruit cavities. It is endemic to eastern Canada. Note: This COSEW ...
COSEWIC assessment and status report on the Eastern Foxsnake (Pantherophis vulpinus) Carolinian population Great Lakes / St. Lawrence population in Canada (2022)
This large, non-venomous snake is restricted to the eastern shoreline of Georgian Bay, where it reaches the northern limits of its distribution. Population size is small, most likely less than 2000 mature individuals, but further sampling of historical sites is required. Large aggregations of snakes at hibernation sites increase their vulnerability to natural catastrophes and human disturbance. Long seasonal migrations to and from these sites pla ...
COSEWIC Assessment and Status Report on the Sharp-tailed Snake (Contia tenuis) Pacific Coast and Coast Mountains populations in Canada (2022)
Sharp-tailed Snake, Contia tenuis, is a small, slender snake with a total length of adults usually less than 34 cm. Distinguishing features include unkeeled scales that give the snake a smooth appearance, solid dorsal colouration, and lack of prominent longitudinal stripes in adults. Note: This COSEWIC assessment was received by the Minister on November 17, 2022.
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