COSEWIC candidate wildlife species

List of wildlife species grouped by the type of wildlife and by its risk of extinction. Each species is assigned to one of 3 groups, depending on how urgently it needs to be assessed. Species in the highest urgency group are reviewed and ranked to create the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) candidate list.

Part 1: overview

Many species in Canada have not yet been assessed by COSEWIC, but are suspected of being at some risk of extinction or extirpation. These species, referred to as ‘candidate wildlife species’ are identified by the species specialist subcommittees (SSCs) or by the Aboriginal Traditional Knowledge (ATK) subcommittee as candidates for detailed status assessment. Candidates may also include wildlife species already assessed by COSEWIC as not at risk or data deficient, but where new information suggests they may be at risk.

SSC and ATK subcommittee members use their expert knowledge and judgment to identify candidate wildlife species. They draw on numerous sources of information including (where available) the General Status of Wild Species in Canada program, information drawn from other multi-jurisdictional monitoring, jurisdictional and international assessment processes (e.g. IUCN and NatureServe) and published ranking systems in the scientific literature. As time and resources allow, COSEWIC will commission status reports for high priority candidate wildlife species so that an assessment can be undertaken.

Status reports are commissioned by COSEWIC through an open competition. A call for bids is periodically posted on this website both for selected candidate species, and also for species already assessed by COSEWIC that require a reassessment. You can register to be notified when new calls for bids are posted on the website.

For more information on candidate wildlife species, visit the COSEWIC wildlife species assessment: process, categories, and guidelines.

Part 2: COSEWIC candidate list

The highest priority wildlife species from the SSC candidate lists are reviewed and ranked by COSEWIC, and result in COSEWIC candidate list. COSEWIC bases its ranking on prioritization data submitted by each SSC. COSEWIC candidate list identifies the highest priority candidate wildlife species for status report production. Wildlife species included in this list include those not yet assessed by COSEWIC and those in the not at risk or data deficient categories, where new information suggests they may be at risk of extinction or extirpation from Canada.


2015 (1) wildlife species

Hornless Oakworm Moth
Taxonomic group:
Arthropods
Scientific name:
Anisota finlaysoni
Common name:
Hornless Oakworm Moth
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2018
Rationale:
This moth ranges in Canada only along the northeastern shore of Lake Ontario, Ontario. The species habitat includes oak woodland and dry forest edges, and may also persist in cleared land with scattered larger oak trees. The majority of this habitat has been historically lost to agriculture or development and there is increased pressure for land conversion to viticulture in the Prince Edward County region. Substantial threats from habitat loss through deforestation/fragmentation, larval mortality due to introduced biocontrol agent, pesticide application for gypsy moth or tent caterpillar control, and possibly also urban lighting.

2016 (3) wildlife species

Ashy Pebblesnail
Taxonomic group:
Molluscs
Scientific name:
Fluminicola fuscus
Common name:
Ashy Pebblesnail
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2018
Rationale:
This freshwater snail was historically sporadically distributed in the Columbia River and a few major tributaries in five states and British Columbia. Populations have been lost from most tributaries and almost all the Columbia River itself; impoundment, nutrient enhancement, warming, and loss of rocky substrate are threats. In Canada, this snail was collected approximately 150 years ago, and has not been seen since until it was recently (2012-2014) collected in the Columbia River near Trail, British Columbia. It is uncertain if it still lives at the historical occupied Kootenay and Wigwam river sites in British Columbia.
Grappletail
Taxonomic group:
Arthropods
Scientific name:
Octogomphus specularis
Common name:
Grappletail
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2018
Rationale:
This species is a small, delicate, slender clubtail dragonfly that ranges mostly west of the Coast, Cascade and Sierra Nevada mountains from extreme southwestern mainland British Columbia south through Washington, Oregon, Nevada (one locality) and California to Baja California in Mexico. It is the only species in the genus Octogomphus and the genus has no close relatives in western North America. The dragonfly lives only along small streams flowing rapidly out of warm lakes in the hills bordering the lower Fraser Valley, British Columbia. All but one of the five to six known sites are on the north side of the Fraser River between Harrison and Pitt lakes. The sole known site south of the river is at the outlet of Cultus Lake. Because of its restricted range in British Columbia, its few populations and the vulnerability of its habitat, it is threatened by housing developments, road-building and logging.
Nevada Buckmoth
Taxonomic group:
Arthropods
Scientific name:
Hemileuca nevadensis
Common name:
Nevada Buckmoth
Canadian range / known or potential jurisdictions:
Alberta, Canadian Wildlife Service, Manitoba, Parks, Saskatchewan
Proposed call for bids date:
2018
Rationale:
This species is a large, charismatic day-flying moth in the giant silkworm family (Saturniidae). In Canada, this species is restricted to two types of specific habitats where it occurs as very isolated populations. In Alberta, Saskatchewan and western Manitoba, it occurs only on sand dunes of the parkland ecoregion where stunted aspen trees predominate. In southeastern Manitoba and adjacent Ontario, this species is known from several populations in mesic tallgrass prairie/carr complexes with abundant willows. Such habitat secialization and a small geographic range suggest that the species may be at risk.

2017 (13) wildlife species

Agrotis arenarius (common name not available)
Taxonomic group:
Arthropods
Scientific name:
Agrotis arenarius
Common name:
(common name not available)
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Nova Scotia, Parks
Proposed call for bids date:
2018
Rationale:
This species is a Noctuid moth endemic to Sable Island, Nova Scotia. The moth has an annual life cycle and is dependent on Ammophila grasses. These grasses are native to coasts of the North Atlantic and are found almost exclusively on the first line of coastal sand dunes, have creeping underground stems or rhizomes allow them to thrive under conditions of shifting sands and high winds, and help to stabilize and prevent coastal erosion. Many species in this genus are of great importance as cutworms, major agricultural pests whose larvae hide by day and emerge at night to feed. Not all species in this genus are agricultural pests.
Brassy Minnow
Taxonomic group:
Fishes (freshwater)
Scientific name:
Hybognathus hankinsoni
Common name:
Brassy Minnow
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Department of Fisheries and Oceans, Manitoba, Ontario, Parks, Quebec, Saskatchewan
Proposed call for bids date:
2018
Rationale:
This fish is a small-bodied member of the minnow family (Cyprinidae). It is distributed broadly throughout Canada and found in five National Freshwater Biogeographical Zones (Pacific, Western Arctic, Saskatchewan-Nelson Rivers, and Missouri River in Western Canada and Great Lakes-Upper St. Lawrence River in Eastern Canada). The status of many populations of this species in the four Western zones may be in decline. Brassy Minnow was recently designated as a Threatened species in Alberta, and is at risk in British Columbia. Sub-populations in Fort McMurray, Alberta, and throughout British Columbia have become locally extirpated in the past decade. In addition, there is only a single population in the Milk River basin in Alberta (a tributary of the Missouri River). There is no indication that it is at risk in the Great Lakes-Upper St. Lawrence zone. The primary threats include urbanization, invasive species, oil, gas and mineral exploration and extraction, agricultural and forestry effluents, and drought associated with climate change.
Cupped Fringe Lichen
Taxonomic group:
Lichens
Scientific name:
Heterodermia hypoleuca
Common name:
Cupped Fringe Lichen
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2018
Rationale:
This species is a rare gray leafy lichen that forms colonies up to about 5 cm in diameter distinguished by cup-shaped fruit bodies and woolly lobe tips. It is found in southern Ontario and southern Quebec as well as in the New England states of the USA. It appears to be exhibiting a range contraction towards Canada. The lichen grows on old deciduous trees in shaded valleys and forested floodplains. It is threatened by deforestation, land use developments, and climate change.
Davis' Shieldback
Taxonomic group:
Arthropods
Scientific name:
Atlanticus davisi
Common name:
Davis' Shieldback
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2018
Rationale:
This species is a katydid found in savannahs, dry woodlands, and forest edges. It is presently known from at least three locations in Norfolk County, Ontario. It's Canadian range is believed to be limited to the Norfolk Sand Plain. Threats to this species are threats to savannah habitat, including conversion to farmland, in-planting of conifers into deciduous habitats, and forest succession in the absence of fire. It is part of a large suite of oak-savannah associated species at risk in southern Ontario. The species is active from the second week of July to the second week of September. Surveys are by sweep netting in mid-morning or early evening.
Dense Draba
Taxonomic group:
Vascular plants
Scientific name:
Draba pycnosperma
Common name:
Dense Draba
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Newfoundland and Labrador, Nova Scotia, Parks, Quebec
Proposed call for bids date:
2018
Rationale:
This herb is endemic to the Gulf of St. Lawrence in Canada in the provinces of Quebec, Newfoundland, and Nova Scotia. It occurs in open calcareous rock habitats, such as escarpments or sea cliffs. The survival of the species appears to be at risk due to the fact that the total number of plants is very small (715 in 2009), there are only a few small subpopulations, and they occupy a small area. The decline in these populations is mainly due to habitat alteration or destruction, associated with trampling, erosion, invasive species, and quarrying.
Fan Moss
Taxonomic group:
Mosses
Scientific name:
Forsstroemia trichomitria
Common name:
Fan Moss
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2018
Rationale:
This moss is a large epiphytic species that was recorded in southern Ontario several times prior to 1900, yet despite its distinctive appearance and size, had not been recorded again until 2011 and again in 2014. This suggests a significant population decline, one that is supported by an apparent species' decline also in northeastern US.
Gray-cheeked Thrush minimus subspecies
Taxonomic group:
Birds
Scientific name:
Catharus minimus minimus
Common name:
Gray-cheeked Thrush minimus subspecies
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Newfoundland and Labrador, Parks
Proposed call for bids date:
2018
Rationale:
This species breeds only on the island of Newfoundland and a small portion of adjacent Labrador and possibly extreme eastern Quebec. Recent studies support the genetic, geographic, and morphological distinctions between this subspecies and the Northern Gray-cheeked Thrush (C. m. aliciae), which breeds across the boreal forest from Alaska to Labrador. The Newfoundland Gray-cheeked Thrush nests primarily in old-growth Balsam Fir forests, as well as shrubby deciduous thickets. Although it was widespread and numerous in Newfoundland until at the least mid-1980s, it has undergone a rapid decline and is now considered rare, with a provincial status of Threatened. Breeding Bird Survey data indicate a population decline of 68% between 2005 and 2015, and an overall 90% loss over the past 35 years. This is likely a function of multiple threats, most notably nest predation by Red Squirrel, loss of old growth forest nesting habitat, and deforestation of wintering grounds in Colombia.
Killdeer
Taxonomic group:
Birds
Scientific name:
Charadrius vociferus
Common name:
Killdeer
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Ontario, Parks, Prince Edward Island, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2018
Rationale:
This species is among the most widespread of North America's shorebirds, with a breeding range that includes all provinces and territories except Nunavut and Newfoundland and Labrador. The species is well known for its broken-wing displays designed to lure potential predators away from nests, as well as for the strident call from which it derives its name. It nests on the ground in open habitats and in some areas has shown considerable tolerance to disturbance. The Canadian population has, however, declined by 76% since 1970, equivalent to a decrease of 30% over three generations. Urbanization and agricultural practices likely pose the greatest threats overall, with specific concerns including an increase in predators in urban and suburban areas, and proliferation of invasive plants.
Meadow Thistle
Taxonomic group:
Vascular plants
Scientific name:
Cirsium scariosum
Common name:
Meadow Thistle
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks, Quebec
Proposed call for bids date:
2018
Rationale:
This species is a perennial herb that flowers, sets seed and then dies. It occurs in six western States and into Canada in southwestern Alberta and southeast British Columbia, and is disjunct in Quebec. The Alberta and British Columbia population is known from 15 sites, but has been observed to be more abundant in British Columbia. In Alberta, decline has been observed due to a seed-head weevil introduced to control other species of thistles by reducing seed production. In Quebec, the species is restricted to a narrow strip between the beach and the forest on four islands of the Mingan archipelago and one site on the mainland on the north shore of the Gulf of St. Lawrence. The Quebec population is small and the species seems to be limited by its poor competitiveness, its relatively reduced fertility, the short distance that the seeds travel on average, their high rate of predation, and natural disturbances. It is presently maintained by seeding and by unearthing plants after storms but sites are also being lost and disturbed by cottage development.
Noisy Shieldback
Taxonomic group:
Arthropods
Scientific name:
Steiroxys strepens
Common name:
Noisy Shieldback
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2018
Rationale:
This species ranges on southern Vancouver Island and is known only from near Victoria, British Columbia. The Vancouver Island populations are disjunct from the nearest populations south in western Oregon. There are no known records for the species in Washington State. This distribution pattern is common to several other insects and many plants and does not indicate a recent introduction to Canada. The Canadian population and many Oregonian populations are found in rare Garry oak woodland and associated meadows. The only known Canadian population (in Victoria) is in a small municipal park that is degraded by historical gardening and infrastructure development, a road, heavy off-trail foot traffic, and invasive plants. All known Canadian specimens of this species are female. The presence of parthenogenic populations is common to other species in the genus Steiroxys.
Ruddy Turnstone, morinella subspecies
Taxonomic group:
Birds
Scientific name:
Arenaria interpres morinella
Common name:
Ruddy Turnstone, morinella subspecies
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Northwest Territories, Nunavut, Parks, Yukon Territory
Proposed call for bids date:
2018
Rationale:
This species is a medium-sized Holarctic-breeding shorebird that feeds predominantly by using its stout, slightly upturned bill to flip over pebbles, shells, and seaweed. The two subspecies occurring in Canada differ in distribution, plumage, morphometrics, as well as in migration routes and wintering areas. Those breeding in the high arctic (A. i. interpres) winter in western Europe and northwestern Africa, and are not proposed for assessment at this time. Those breeding south and west of north Devon Island, Nunavut, as well as in Northwest Territories and Yukon, are A. i. morinella, and winter along the Pacific and Atlantic coasts of North and South America. Migration monitoring surveys indicate that this population declined by 74% between 1974 and 2014, equivalent to a three-generation decline of 34%. Causes for the decline remain largely unknown, but are likely to include silt deposition and development of coastal wintering habitat, and overgrazing by geese on the breeding grounds.
Sable Island Beetle
Taxonomic group:
Arthropods
Scientific name:
Tricholochmaea sablensis
Common name:
Sable Island Beetle
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Nova Scotia, Parks
Proposed call for bids date:
2018
Rationale:
This species appears to be a post-glacial relict species found only on Sable Island, Nova Scotia. It has been collected from bog cranberry (Vaccinmium macrocarpon), which is restricted to a cranberry bog near a small freshwater lake on Sable Island. The lake, which had a salinity of 25 ppm was less saline than any of the surrounding lakes. Collecting on Sable Island in 1976-77 and 1989 failed to find any on Sable Island and recent work in 2004 has also failed to turn up any specimens, casting some doubt on whether the species is still extant.
Scaly Fringe Lichen
Taxonomic group:
Lichens
Scientific name:
Heterodermia squamulosa
Common name:
Scaly Fringe Lichen
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, New Brunswick, Nova Scotia, Parks
Proposed call for bids date:
2018
Rationale:
The species is endemic to eastern North America and known in Canada only from Nova Scotia. It is a conspicuous lichen and has not yet been found in New Brunswick or Quebec despite searches. The lichen is leafy and greenish-gray growing up to 12 cm in diameter on deciduous trees in old growth or late successional humid forests. Forest harvesting for biomass or other purposes as well as climate change are threats to this lichen.

2018 (17) species

Apotreubia hortoniae (common name not available)
Taxonomic group:
Mosses
Scientific name:
Apotreubia hortoniae
Common name:
(common name not available)
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
Apotreubia hortoniae is a rare liverwort that is restricted to hyperoceanic climate and known from only a handful of sites at Haida Gwai and nearby islands. Potential threats include tourist infrastructure, wood harvesting and quarrying.
Big-tooth Whitelip
Taxonomic group:
Molluscs
Scientific name:
Neohelix dentifera
Common name:
Big-tooth Whitelip
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, New Brunswick, Ontario, Parks, Quebec
Proposed call for bids date:
2019
Rationale:
This is one of only two species of large-shell terrestrial snails belonging to the genus Neohelix in Canada. It is a rare species at the northern limit of its range in southern Ontario and Quebec and likely always has been rare in Canada and in the US. Most of historical occurrence sites have already been lost through habitat loss and degradation. Other threats might be invasive species, climate change and anthropogenic pressure.
Boreal Awningclam
Taxonomic group:
Molluscs
Scientific name:
Solemya borealis
Common name:
Boreal Awningclam
Canadian range / known or potential jurisdictions:
Atlantic Ocean, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
Boreal Awningclam is one of the few species from the family Solemyidae living in Canadian waters. This marine species is at the northern limit of its range off Nova Scotia and New Brunswick. Like other species of Solemyidae, it forms symbiotic associations with sulfur-oxidizing bacteria that live in its gills and provide it with nutrients. It burrows in fine, organic-rich mud at a range of depths (0-500 m); the presence of this species in intertidal muds, as observed recently off Nova Scotia, is rare. The species appears to have been fairly common in offshore sediments, but is now infrequently collected. Threats are uncertain.
California Swordfern
Taxonomic group:
Vascular plants
Scientific name:
Polystichum californicum
Common name:
California Swordfern
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
This species is known in Canada from only two sites in British Columbia. It is likely intrinsically vulnerable due to low dispersal rates and difficulty in becoming established in appropriate limestone habitats. There is some risk of quarrying and/or mining impacting this species.
Duke's Skipper
Taxonomic group:
Arthropods
Scientific name:
Euphyes dukesi
Common name:
Duke's Skipper
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2019
Rationale:
The Duke's Skipper is restricted to extreme southwestern Ontario, and inhabits shady graminoid open marshy areas adjacent to, or within woodlands. Threats include decline in habitat quality and extent through draining, infilling and diversion of water and wetlands; contamination of the wetland habitat, and the spread of non-native plants that out-compete the species host plants thereby leading to the decline of the skipper. The skipper is of conservation concern in all parts of their range.
Dwarf Western Trillium
Taxonomic group:
Vascular plants
Scientific name:
Trilium ovatum
Common name:
Dwarf Western Trillium
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
This species occurs only on western Vancouver Island, at a handful of remote and relatively inaccessible sites. Threats include mostly collateral damage from construction of logging roads, increased forest cover as succession proceeds, and rock gardeners who remove plants from the wild.
Eastern Red Bat
Taxonomic group:
Mammals (terrestrial)
Scientific name:
Lasiurus borealis
Common name:
Eastern Red Bat
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Ontario, Parks, Quebec, Saskatchewan
Proposed call for bids date:
2019
Rationale:
Populations of three species of migratory bats, the Hoary Bat, Silver-haired Bat, and Red Bat have experienced recent declines in their North American populations. The species breed across much the forested parts of Canada and overwinter in the southern United States.
Gaspe Grasshopper
Taxonomic group:
Arthropods
Scientific name:
Melanoplus gaspesiensis
Common name:
Gaspe Grasshopper
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Parks, Quebec
Proposed call for bids date:
2019
Rationale:
The Gaspe Grasshopper (Melanoplus gaspesiensis) is globally restricted to the summit of Mount Albert in the Gaspé in Québec and is believed to have survived in refugia during various glacial episodes, most recently the Wisconsinan. The species and its habitat are threatened from climate change and possibly mining and mineral extraction.
Hoary Bat
Taxonomic group:
Mammals (terrestrial)
Scientific name:
Lasiurus cinereus
Common name:
Hoary Bat
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Ontario, Parks, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2019
Rationale:
Populations of three species of migratory bats, the Hoary Bat, Silver-haired Bat, and Red Bat have experienced recent declines in their North American populations. The species breed across much the forested parts of Canada and overwinter in the southern United States.
Johnson's Hairstreak
Taxonomic group:
Arthropods
Scientific name:
Callophrys johnsoni
Common name:
Johnson's Hairstreak
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
The Johnson's Hairstreak (Callophrys johnsoni) is a small brown butterfly that ranges in the lower elevation old growth forests on the west coast of British Columbia. The larvae depend exclusively on exposed Hemlock Dwarf Mistletoe (fungus), which tends to grow at the tops or sun-exposed parts of Western Hemlock stands. The species appears to have declined due to logging of old growth timber, and active management to control Hemlock Dwarf Mistletoe, thereby limiting its habitat.
Oak Hairstreak
Taxonomic group:
Arthropods
Scientific name:
Satyrium favonius
Common name:
Oak Hairstreak
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2019
Rationale:
The Oak Hairstreak (Satyrium favonius) is an open meadow habitat species, restricted to southern Ontario. After almost 100 years, the species was confirmed from Point Pelee National Park in 1999 when a single individual was recorded at Point Pelee National Park, but has not been seen again since despite very heavy survey effort. There is one additional location in Canada (Reid Conservation Area, Lambton Co.) recorded in 2008. Threats include agricultural land conversion, invasive non-native plants out-competing the species host plants, and potentially grazing by native deer (of the host plants).
Pacific Lasiopogon
Taxonomic group:
Arthropods
Scientific name:
Lasiopogon pacificus
Common name:
Pacific Lasiopogon
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Parks
Proposed call for bids date:
2019
Rationale:
The Pacific Lasiopogon (Lasiopogon pacificus) is known from Vancouver to Oregon on coastal beaches and river banks. In Canada it is restricted to the lower Fraser River Valley from the Mission area west to Vancouver. It is known from four or five sites in Canada along the Fraser River. Many of the beaches and riparian areas in the Fraser Valley have been destroyed in the past decades, however suitable habitat remains.
Pumpkin Ash
Taxonomic group:
Vascular plants
Scientific name:
Fraxinus profunda
Common name:
Pumpkin Ash
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Ontario, Parks
Proposed call for bids date:
2019
Rationale:
Pumpkin Ash has a relatively limited range within Canada, with Ontario occurrences being the northernmost in the world. Pumpkin Ash is probably climatically limited to a very small zone of southernmost Ontario in which most natural habitat has been converted to human uses. The Emerald Ash Borer also threatens this species.
Short-billed Dowitcher
Taxonomic group:
Birds
Scientific name:
Limnodromus griseus
Common name:
Short-billed Dowitcher
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Ontario, Parks, Prince Edward Island, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2019
Rationale:
Short-billed Dowitcher is a long-billed, medium-sized shorebird that breeds in northern boreal wetlands and winters along the Pacific and Atlantic coasts of Central and northern South America. Surveys at migratory stopover locations and wintering sites along the northern coast of South America indicate a population decline of 70-85% since the 1970s. Potential causes of this decline remain unclear, but are likely to include loss of habitat throughout its life cycle, as well as hunting in Latin America.
Silver-haired Bat
Taxonomic group:
Mammals (terrestrial)
Scientific name:
Lasionycteris noctivagans
Common name:
Silver-haired Bat
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Ontario, Parks, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2019
Rationale:
Populations of three species of migratory bats, the Hoary Bat, Silver-haired Bat, and Red Bat have experienced recent declines in their North American populations. The species breed across much the forested parts of Canada and overwinter in the southern United States.
Sphagnum cyclophyllum (common name not available)
Taxonomic group:
Mosses
Scientific name:
Sphagnum cyclophyllum
Common name:
(common name not available)
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Nova Scotia, Parks
Proposed call for bids date:
2019
Rationale:
Sphagnum cyclophyllum is a rare coastal plain peat moss restricted to two sites in southern Nova Scotia. Potential threats include ATV use and peat harvest. The species may also be vulnerable to multiple impacts of sea level rise.
Whimbrel
Taxonomic group:
Birds
Scientific name:
Numenius phaeopus
Common name:
Whimbrel
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Ontario, Parks, Prince Edward Island, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2019
Rationale:
Whimbrel is a large shorebird with a long, decurved bill that breeds in Arctic tundra and winters primarily along shorelines and coastal wetlands in the Southern Hemisphere. Data from the International Shorebird Survey suggest a 67% population decline over the past 20 years, equivalent to three generations for this species. Loss of wintering habitat and hunting pressure in parts of the Caribbean and South America are considered to be the primary threats to Whimbrel, but climate change may also be reducing breeding success in Canada.

For a full copy of the COSEWIC candidate species rationale, please contact us at ec.cosepac-cosewic.ec@canada.ca.

Part 3: species specialist subcommittees’ candidate list

Each SSC annually prepares and maintains a SSC candidate list of wildlife species that it considers at risk of extinction or extirpation nationally. Species on the SSC candidate lists are ranked into three priority groups by the SSCs to reflect the relative urgency with which each wildlife species should receive a COSEWIC assessment.

  • group 1 contains wildlife species of highest priority for assessment by COSEWIC, and includes wildlife species suspected to be extirpated from Canada
  • groups 2 and 3 contain wildlife species that are of intermediate and lower priority for COSEWIC assessment, respectively.

Rationales for inclusion of wildlife species on the SSC candidate lists differ among the taxonomic groups considered by COSEWIC, reflecting the vast differences in their life history, and differences in our knowledge about the species.

Wildlife species in bold have been selected by COSEWIC for assessment and are currently planned for inclusion in a future call for bids.

Amphibians (25)


Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Cope's Grey Treefrog Dryophytes chrysoscelis CWS, MB, Parks
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Northwestern Salamander Ambystoma gracile BC, CWS, Parks
Spotted Salamander Ambystoma maculatum CWS, MB, NB, NL, NS, ON, Parks, PE, QC
Canadian Toad Bufo hemiophrys AB, CWS, MB, NT, Parks, SK
Ensatina Ensatina eschscholtzii BC, CWS, Parks
Four-toed Salamander Hemidactylium scutatum CWS, NB, NS, ON, Parks, QC
Gray Treefrog Hyla versicolor CWS, MB, NB, NS, ON, Parks, PE, QC
American Bullfrog Lithobates catesbeianus CWS, NB, NS, ON, Parks, PE, QC
Mink Frog Lithobates septentrionalis CWS, NB, NS, ON, Parks, PE, QC
Eastern Red-backed Salamander Plethodon cinereus CWS, NB, NS, ON, Parks, PE, QC
Columbia Spotted Frog Rana luteiventris AB, BC, CWS, Parks, WMAC-NS, YFWMB, YT
Pickerel Frog Rana palustris CWS, NB, NS, ON, Parks, PE, QC
Plains Spadefoot Spea bombifrons AB, CWS, MB, Parks, SK
Rough-skinned Newt Taricha granulosa BC, CWS, Parks
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Blue-spotted Salamander Ambystoma laterale CWS, MB, NB, NL, NS, ON, Parks, PE, QC
Long-toed Salamander Ambystoma macrodactylum AB, BC, CWS, Parks
American Toad Anaxyrus americanus CWS, MB, NB, NL, NS, NU, ON, Parks, PE, QC
Northern Two-lined Salamander Eurycea bislineata CWS, NL, ON, Parks, QC
Green Frog Lithobates clamitans CWS, NB, NS, ON, Parks, PE, QC
Wood Frog Lithobates sylvaticus AB, BC, CWS, MB, NB, NL, NS, NT, ON, Parks, PE, QC, SK, YT
Eastern Newt Notophthalmus viridescens CWS, NB, NL, NS, ON, Parks, PE, QC
Western Red-backed Salamander Plethodon vehiculum BC, CWS, Parks
Spring Peeper Pseudacris crucifer CWS, MB, NB, NS, ON, Parks, PE, QC
Boreal Chorus Frog Pseudacris maculata AB, BC, CWS, MB, NT, ON, Parks, QC, SK, YT
Northern Pacific Treefrog Pseudacris regilla BC, CWS, Parks

Arthropods (99)

Group 1 - High priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Hoary Edge Achalarus lyciades CWS, ON, Parks
(common name not available) Agrotis arenarius CWS, NS, Parks
(common name not available) Andrena caerulea BC, CWS, Parks
Hornless Oakworm Moth Anisota finlaysoni CWS, ON, Parks
Davis' Shieldback Atlanticus davisi CWS, ON, Parks
Protean Shieldback Atlanticus testaceus CWS, ON, Parks
(common name not available) Calliopsis scitula BC, CWS, Parks
Johnson's Hairstreak Callophrys johnsoni BC, CWS, Parks
Pacific Coast Tiger Beetle Cicindela bellisimi BC, CWS, Parks
(common name not available) Copablepharon viridisparsa AB, CWS, MB, Parks, SK
White-winged Grasshopper Dissosteira spurcata BC, CWS, Parks
(common name not available) Eucosma sableana CWS, NS, Parks
Duke's Skipper Euphyes dukesi CWS, ON, Parks
Nevada Buckmoth Hemileuca nevadensis AB, CWS, MB, Parks, SK
(common name not available) Hystrichopsylla schefferi BC, CWS, Parks
Pacific Lasiopogon Lasiopogon pacificus BC, CWS, Parks
Edith's Copper Lycaena editha AB, BC, CWS, Parks
Strecker's Giant Skipper Megathymus streckeri AB, CWS, Parks
Gaspe Grasshopper Melanoplus gaspesiensis CWS, Parks, QC
Grappletail Octogomphus specularis BC, CWS, Parks
Valley Grasshopper Oedaleontus enigma BC, CWS, Parks
(common name not available) Omophron labiatum CWS, NS, Parks
Golden Borer Moth Papaipema cerina CWS, ON, Parks
Canadian Philaronia Philaronia canadensis CWS, ON, Parks
Oak Hairstreak Satyrium favonius CWS, ON, Parks
Noisy Shieldback Steiroxys strepens BC, CWS, Parks
Long-spined Jerusalem Cricket Stenopelmatus longispinus BC, CWS, Parks
Sable Island Beetle Tricholochmaea sablensis CWS, NS, Parks
(common name not available) Triepeolus brittaini CWS, NB, NS, Parks, PE
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Barren's Dagger Moth Acronicta albarufa CWS, MB, ON, Parks
Beller's Ground Beetle Agonum belleri BC, CWS, Parks
Oslar's Roadside Skipper Amblyscirtes oslari AB, CWS, Parks, SK
(common name not available) Andrena edwardsi BC, CWS, Parks
Parasitic Wasp Apantes samarshalli CWS, ON, Parks
(common name not available) Argyresthia flexilis AB, BC, CWS, Parks
(common name not available) Austrotyla borealis AB, CWS, Parks
(common name not available) Bombus morrisoni BC, CWS, Parks
(common name not available) Bombus vandykei BC, CWS, Parks
(common name not available) Bombus variabilis CWS, Parks, QC
Moss's Elfin Callophrys mossii BC, CWS, Parks
(common name not available) Cambarus bartonii CWS, NB, ON, Parks, QC
Whitney's Underwing Catocala whitneyi CWS, MB, Parks
Hoffmann's Checkerspot Chlosyne hoffmanni BC, CWS, Parks
(common name not available) Coleotechnites lewisi AB, CWS, Parks
(common name not available) Copablepharon hopfingerii BC, CWS, Parks
Eastern Tailed Blue (British Columbia population) Cupido comyntas BC, CWS, Parks
(common name not available) Dendrotettix quercus CWS, ON, Parks
(common name not available) Dicromantispa sayi CWS, ON, Parks
(common name not available) Dufourea monardae CWS, ON, Parks
(common name not available) Ellipes gurneyi CWS, ON, Parks
Ghost Tiger Beetle Ellipsoptera lepida AB, CWS, MB, ON, Parks, SK
(common name not available) Eristalis brousii CWS, Parks
Propertius Duskywing Erynnis propertius BC, CWS, Parks
(common name not available) Eumenes bollii CWS, Parks
(common name not available) Euxoa unica CWS, Parks, SK
Pahaska Skipper Hesperia pahaska CWS, Parks, SK
(common name not available) Hesperotettix viridis BC, CWS, Parks
Carr's Diving Beetle Hydroporus carri AB, CWS, Parks
(common name not available) Hyperaspis brunnescens CWS, NS, Parks
(common name not available) Lasioglossum yukonae BC, CWS, Parks, YT
(common name not available) Lasionycta macleani BC, CWS, Parks
Minor Ground Mantid Litaneutria minor AB, BC, CWS, Parks, SK
(common name not available) Lypoglossa manitobae CWS, Parks
(common name not available) Megaphorus willistoni BC, CWS, Parks
(common name not available) Melanoplus digitifer BC, CWS, Parks
(common name not available) Melanoplus rugglesi BC, CWS, Parks
(common name not available) Melanoplus scudderi CWS, ON, Parks
Rocky Mountain Grasshopper Melanoplus spretus AB, CWS, Parks, SK
(common name not available) Melanoplus walshii CWS, ON, Parks
(common name not available) Metator nevadensis BC, CWS, Parks
Contracted Bombing Beetle Metrius contractus contractus BC, CWS, Parks
(common name not available) Naemia seriata CWS, NB, NS, Parks
(common name not available) Nebria charlottae BC, CWS, Parks
Gwaii Haanas Ground Beetle Nebria louisae BC, CWS, Parks
(common name not available) Nephus intrusus CWS, ON, Parks
(common name not available) Nicocles rufus BC, CWS, Parks
Simius Roadside Skipper Notamblyscirtes simius CWS, Parks, SK
(common name not available) Oecanthus laricis CWS, ON, Parks
Gaspé Arctic Oeneis bore gaspeensis CWS, Parks, QC
(common name not available) Omus dejeanii BC, CWS, Parks
(common name not available) Pachybrachis calcaratus CWS, Parks
Indra Swallowtail subspecies Papilio indra indra BC, CWS, Parks
(common name not available) Philonthus turbo CWS, Parks
(common name not available) Polites rhesus CWS, Parks
Sandhill Skipper Polites sabuleti BC, CWS, Parks
(common name not available) Prosimulium doveri BC, CWS, Parks
(common name not available) Scaphinotus merkeli BC, CWS, Parks
False Indigo Flower Moth Schinia lucens CWS, MB, Parks
(common name not available) Scymnus cervicalis CWS, ON, Parks
(common name not available) Scymnus fraternus CWS, ON, Parks, QC
(common name not available) Scymnus securus CWS, ON, Parks
(common name not available) Sogda enigma CWS, Parks
Bremner's Zerene Fritillary Speyeria zerene bremnerii BC, CWS, Parks
(common name not available) Stereus arenarius AB, CWS, Parks
(common name not available) Stichopogon fragilis BC, CWS, Parks
(common name not available) Stygobromus quatsinensis BC, CWS, Parks
(common name not available) Trichiusa robustula CWS, ON, Parks
Olympic Peninsula Millipede Tubaphe levii BC, CWS, Parks
(common name not available) Xanthorhoe clarkeata BC, CWS, Parks

Birds (20)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Ruddy Turnstone, morinella subspecies Arenaria interpres morinella CWS, NT, NU, Parks, YT
Gray-cheeked Thrush minimus subspecies Catharus minimus minimus CWS, NL, Parks
Killdeer Charadrius vociferus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Short-billed Dowitcher Limnodromus griseus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Whimbrel Numenius phaeopus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Stilt Sandpiper Calidris himantopus AB, CWS, MB, NT, NU, ON, Parks, QC, SK, YT
Pectoral Sandpiper Calidris melanotos AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Yellow-billed Loon Gavia adamsii AB, BC, CWS, GRRB, MB, NT, NU, NWMB, Parks, QC, SRRB, WMAC-NS, WMAC-NWT, WRRB, YFWMB, YT
Long-billed Dowitcher Limnodromus scolopaceus AB, BC, CWS, MB, NT, ON, Parks, QC, SK, YT
American Golden-plover Pluvialis dominica AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Field Sparrow Spizella pusilla CWS, ON, Parks, QC, SK
Wandering Tattler Tringa incana BC, CWS, NT, Parks, YT
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Clark's Grebe Aechmophorus clarkii AB, CWS, MB, Parks, SK
Yellow-billed Cuckoo Coccyzus americanus CWS, ON, Parks, QC
Black-billed Cuckoo Coccyzus erythropthalmus AB, CWS, MB, NB, NS, ON, Parks, QC, SK
Sooty Grouse Dendragapus fuliginosus BC, CWS, Parks
Least Flycatcher Empidonax minimus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
American Kestrel Falco sparverius AB, BC, CWS, MB, NB, NL, NS, NT, ON, Parks, PE, QC, SK, YT
Connecticut Warbler Oporornis agilis AB, BC, CWS, MB, NT, NU, ON, Parks, QC, SK
Prairie Warbler Setophaga discolor CWS, ON, Parks

Freshwater fishes (71)

Group 1 - High priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
European Whitefish Coregonus lavaretus CWS, DFO, NT, Parks, YT
Blackfin Cisco Coregonus nigripinnis CWS, DFO, ON, Parks
Pacific Lamprey Entosphenus tridentatus BC, CWS, DFO, Parks
Brassy Minnow Hybognathus hankinsoni AB, BC, CWS, DFO, MB, ON, Parks, QC, SK
Chestnut Lamprey (Great Lakes - Upper St. Lawrence populations) Ichthyomyzon castaneus CWS, DFO, ON, Parks, QC
Silver Lamprey Ichthyomyzon unicuspis CWS, DFO, MB, ON, Parks
Blackchin Shiner Notropis heterodon CWS, DFO, MB, ON, Parks, QC
Coastal Cutthroat Trout Oncorhynchus clarkii clarkii BC, CWS, DFO, NJFMC, Parks, YT
Plains Sucker (Saskatchewan - Nelson River populations) Pantosteus jordani AB, CWS, DFO, Parks, SK
Arctic Grayling (Western Arctic populations) Thymallus arcticus AB, BC, CWS, DFO, MB, NT, NU, Parks, SK, YT
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Cisco (Lake Herring) Coregonus artedi AB, BC, CWS, DFO, MB, NT, NU, ON, Parks, QC, SK
Arctic Cisco Coregonus autumnalis BC, CWS, DFO, NT, NU, Parks, YT
Least Cisco Coregonus sardinella BC, CWS, DFO, NT, NU, Parks, YT
Banded Killifish (Mainland populations) Fundulus diaphanus CWS, DFO, MB, NB, NS, ON, Parks, PE, QC
Redbreast Sunfish Lepomis auritus CWS, DFO, NB, Parks
Northern Sunfish (Saskatchewan - Nelson River populations) Lepomis peltastes CWS, DFO, ON, Parks
Silver Redhorse Moxostoma anisurum AB, CWS, DFO, MB, ON, Parks, QC, SK
Golden Redhorse Moxostoma erythrurum CWS, DFO, MB, ON, Parks
Greater Redhorse Moxostoma valenciennesi CWS, DFO, ON, Parks, QC
Fourhorn Sculpin (Freshwater form) Myoxocephalus quadricornis CWS, DFO, FJMC, NL, NT, NU, NWMB, Parks, WRRB
Hornyhead Chub Nocomis biguttatus CWS, DFO, MB, ON, Parks
Brindled Madtom Noturus miurus CWS, DFO, ON, Parks
Bull Trout (Upper Yukon Watershed populations) Salvelinus confluentus BC, CWS, DFO, Parks, YT
Inconnu Stenodus leucichthys BC, CWS, DFO, NT, Parks, YT
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Chiselmouth Acrocheilus alutaceus BC, CWS, DFO, Parks
Yellow Bullhead Ameiurus natalis CWS, DFO, ON, Parks, QC
Central Stoneroller Campostoma anomalum CWS, DFO, ON, Parks
Quillback Carpiodes cyprinus AB, CWS, DFO, MB, ON, Parks, QC, SK
Lake Whitefish (Mira River populations) Coregonus clupeaformis CWS, DFO, NS, Parks
Lake Whitefish (Simcoe Lake populations) Coregonus clupeaformis CWS, DFO, ON, Parks
Bloater Coregonus hoyi CWS, DFO, ON, Parks
Broad Whitefish Coregonus nasus BC, CWS, DFO, NT, NU, Parks, YT
Slimy Sculpin Cottus cognatus AB, BC, CWS, DFO, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Spoonhead Sculpin Cottus ricei AB, BC, CWS, DFO, FJMC, GRRB, HFTCC, MB, NT, ON, Parks, QC, SK, SRRB, WRRB, YFWMB, YT
Redfin Pickerel Esox americanus americanus CWS, DFO, Parks, QC
Muskellunge Esox masquinongy CWS, DFO, MB, ON, Parks, QC
Chain Pickerel Esox niger CWS, DFO, Parks, QC
Greenside Darter Etheostoma blennioides CWS, DFO, ON, Parks
Rainbow Darter Etheostoma caeruleum CWS, DFO, ON, Parks
Least Darter Etheostoma microperca CWS, DFO, ON, Parks
Tessellated Darter Etheostoma olmstedi CWS, DFO, ON, Parks, QC
Eastern Silvery Minnow Hybognathus regius CWS, DFO, ON, Parks, QC
Chestnut Lamprey (Saskatchewan - Nelson River populations) Ichthyomyzon castaneus CWS, DFO, MB, ON, Parks, SK
Bigmouth Buffalo (Great Lakes - Upper St. Lawrence Populations) Ictiobus cyprinellus CWS, DFO, ON, Parks
Black Buffalo Ictiobus niger CWS, DFO, ON, Parks
Brook Silverside Labidesthes sicculus CWS, DFO, ON, Parks, QC
Green Sunfish Lepomis cyanellus CWS, DFO, ON, Parks
Alaskan Brook Lamprey Lethenteron alaskense CWS, DFO, NT, Parks
Striped Shiner Luxilus chrysocephalus CWS, DFO, ON, Parks
Redfin Shiner Lythrurus umbratilis CWS, DFO, ON, Parks
Silver Chub (Saskatchewan - Nelson River populations) Macrhybopsis storeriana CWS, DFO, MB, Parks
Northern Pearl Dace Margariscus nachtiebi AB, BC, CWS, DFO, MB, NB, NL, NS, NT, ON, Parks, QC, SK
River Chub Nocomis micropogon CWS, DFO, ON, Parks
River Shiner Notropis blennius AB, CWS, DFO, MB, ON, Parks, SK
Ghost Shiner Notropis buchanani CWS, DFO, ON, Parks
Bigmouth Shiner Notropis dorsalis CWS, DFO, MB, Parks
Rosyface Shiner Notropis rubellus CWS, DFO, ON, Parks, QC
Weed Shiner Notropis texanus CWS, DFO, MB, Parks
Margined Madtom Noturus insignis CWS, DFO, ON, Parks, QC
Blackside Darter Percina maculata CWS, DFO, MB, ON, Parks, SK
Bluntnose Minnow Pimephales notatus CWS, DFO, MB, ON, Parks, QC
Round Whitefish Prosopium cylindraceum AB, BC, CWS, DFO, FJMC, GRRB, HFTCC, MB, NB, NL, NT, NU, NWMB, ON, Parks, QC, SK, SRRB, YFWMB, YT
Flathead Catfish Pylodictis olivaris CWS, DFO, ON, Parks
Eastern Blacknose Dace Rhinichthys atratulus CWS, DFO, NB, ON, Parks, QC
Leopard Dace Rhinichthys falcatus BC, CWS, DFO, Parks
Western Blacknose Dace Rhinichthys obtusus CWS, DFO, MB, ON, Parks, SK
Arctic Char Salvelinus alpinus CWS, DFO, FJMC, GRRB, HFTCC, MB, NB, NL, NT, NU, NWMB, Parks, QC, SRRB, YFWMB, YT
Bull Trout (Pacific populations) Salvelinus confluentus BC, CWS, DFO, Parks
Lake Trout Salvelinus namaycush AB, CWS, DFO, MB, NB, NL, NS, NT, NU, ON, Parks, QC, SK, YT
Longfin Smelt Spirinchus thaleichthys BC, CWS, DFO, Parks

Lichens (34)

Group 1 - High priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Wright's Spotted Felt Lichen Dendriscosticta wrightii BC, CWS, Parks
Vole Felt Lichen Erioderma sorediatum BC, CWS, Parks
Cupped Fringe Lichen Heterodermia hypoleuca CWS, ON, Parks
Scaly Fringe Lichen Heterodermia squamulosa CWS, NB, NS, Parks
(common name not available) Lichenoidium sirosiphoidium BC, CWS, NL, Parks
White Fringe Lichen Moelleropsis nebulosa CWS, NB, NL, NS, Parks
(common name not available) Parmeliella parvula BC, CWS, NL, NS, Parks
Powdered Moon Lichen (Eastern population) Sticta limbata CWS, NB, NS, Parks, QC
Arctic Orangebush Lichen Xanthaptychia aurantiaca CWS, NT, Parks
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Whiskered Millipede Lichen Anaptychia elbursiana AB, BC, CWS, Parks
Flexuous Golden Stubble Chaenotheca servitii CWS, NS, Parks
Desert Tumbleweed Lichen Circinaria hispida AB, BC, CWS, Parks, SK
(common name not available) Fuscopannaria ahlneri BC, CWS, NS, Parks
(common name not available) Fuscopannaria coralloidea BC, CWS, Parks
Desert Rock-scab Glypholecia scabra BC, CWS, NT, NU, Parks, SK
(common name not available) Pannaria tavaresii CWS, NS, ON, Parks
(common name not available) Peltula euploca BC, CWS, Parks
Red Oak Stubble Phaeocalicium minutissimum CWS, NB, Parks, QC
Crannied Orangebush Lichen Seirophora contortuplicata AB, BC, CWS, NT, Parks, YT
(common name not available) Sticta canariensis CWS, ON, Parks
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
(common name not available) Bryoria carlottae BC, CWS, Parks
Mottled Horsehair Lichen Bryoria cervinula BC, CWS, NT, Parks
Rosin Whiskers Chaenothecopsis oregana AB, CWS, Parks
(common name not available) Dermatocarpon dolomiticum CWS, ON, Parks
(common name not available) Gypsoplaca macrophylla AB, BC, CWS, NT, Parks, YT
(common name not available) Heppia adglutianata CWS, ON, Parks
(common name not available) Leptogium corticola CWS, NS, ON, Parks
(common name not available) Leptogium hibernicum CWS, NS, Parks
(common name not available) Niebla cephalota BC, CWS, Parks
Ghost Antler Lichen Pseudevernia cladonia CWS, NB, NS, Parks, QC
Antler Lichen Pseudevernia consocians AB, CWS, MB, NS, ON, Parks
(common name not available) Punctelia borreri CWS, ON, Parks
(common name not available) Sclerophora amabilis BC, CWS, NB, Parks
(common name not available) Thyrea confusa BC, CWS, ON, Parks, QC

Marine fishes (9)

Group 1 - High priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pink Salmon Oncorhynchus gorbuscha BC, CWS, DFO, Parks, Pacific Ocean
Chum Salmon Oncorhynchus keta BC, CWS, DFO, NT, Parks, Pacific Ocean
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Alewife Alosa pseudoharengus Atlantic Ocean, CWS, DFO, Parks
American Shad Alosa sapidissima Atlantic Ocean, CWS, DFO, NB, NS, Parks, PE, QC
Pollock Pollachius virens Atlantic Ocean, CWS, DFO, NB, NL, NS, Parks
Atlantic Mackerel Scomber scombrus Atlantic Ocean, CWS, DFO, Parks
Widow Rockfish Sebastes entomelas BC, CWS, DFO, NJFMC, Parks, Pacific Ocean
Shortspine Thornyhead Sebastolobus alascanus BC, CWS, DFO, Parks, Pacific Ocean
Greenland Shark Somniosus microcephalus Arctic Ocean, Atlantic Ocean, CWS, DFO, Parks
Group 3 - low priority candidates
No candidates currently listed

Marine mammals (9)

Group 1 - High priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Guadalupe Fur Seal Arctocephalus townsendi CWS, DFO, Parks, Pacific Ocean
Baird's Beaked Whale Berardius bairdii CWS, DFO, Parks, Pacific Ocean
Cuvier's Beaked Whale Ziphius cavirostris Atlantic Ocean, CWS, DFO, Parks, Pacific Ocean
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Hooded Seal Cystophora cristata Arctic Ocean, Atlantic Ocean, CWS, DFO, NU, NWMB, Parks
Bearded Seal Erignathus barbatus Arctic Ocean, CWS, DFO, FJMC, HFTCC, MB, NL, NT, NU, NWMB, ON, Parks, QC, YT
Pacific White-sided Dolphin Lagenorhynchus obliquidens CWS, DFO, Parks, Pacific Ocean
Sperm Whale Physeter macrocephalus CWS, DFO, NWMB, Parks
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Northern Elephant Seal Mirounga angustirostris BC, CWS, DFO, Parks, Pacific Ocean
Harp Seal Phoca groenlandica Arctic Ocean, Atlantic Ocean, CWS, DFO, NL, Parks

Molluscs (35)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Ashy Pebblesnail Fluminicola fuscus BC, CWS, Parks
Big-tooth Whitelip Neohelix dentifera CWS, NB, ON, Parks, QC
Boreal Awningclam Solemya borealis Atlantic Ocean, CWS, Parks
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Globe Siltsnail Birgella subglobosa CWS, MB, ON, Parks, QC
Bugle Sprite Micromenetus dilatatus CWS, NS, Parks
Boundary Mountainsnail Oreohelix subrudis limitaris AB, CWS, Parks
Blunt Albino Physa Physella gyrina athearni AB, CWS, Parks
Ornamented Peaclam Pisidium cruciatum CWS, ON, Parks
Corpulent Rams-horn Planorbella corpulenta CWS, MB, ON, Parks
Whiteaves's Capacious Rams-horn Planorbella corpulenta whiteavesi CWS, ON, Parks
Western Arctic Stagnicola Stagnicola kennicotti CWS, NT, NU, Parks
Bronze Pinecone Strobilops aeneus CWS, MB, NB, NS, ON, Parks
Loosely-coiled Valve Snail Valvata lewisi ontariensis CWS, ON, Parks
Pyramid Dome Ventridens intertextus CWS, ON, Parks
Velvet Wedge Xolotrema denotatum CWS, ON, Parks
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Bark Snaggletooth Gastrocopta corticaria CWS, NB, ON, Parks, QC
Lake Superior Rams-horn Helisoma anceps royalense CWS, MB, ON, Parks
Fluted Shell Lasmigona costata CWS, MB, ON, Parks, QC
Tidewater Mucket Leptodea ochracea CWS, NB, NS, Parks
Eastern Pearl Mussel Margaritifera margaritifera CWS, NB, NL, NS, Parks, PE, QC
Yellow Globelet Mesodon clausus CWS, ON, Parks
Rotund Physa Physella columbiana BC, CWS, Parks
Haldeman's Physa Physella concolor BC, CWS, Parks
Grain physa Physella hordacea BC, CWS, DFO, Parks
Twisted Physa Physella lordi AB, BC, CWS, Parks
Nuttall's Physa Physella nuttalli BC, CWS, Parks
Tiny Peaclam Pisidium insigne AB, BC, CWS, ON, Parks, PE
Slender Walker Pomatiopsis lapidaria CWS, ON, Parks
Pimpleback Quadrula pustulosa CWS, ON, Parks
Mountain Marshsnail Stagnicola montanensis AB, CWS, Parks
Calabash Pondsnail Stagnicola walkeriana CWS, ON, Parks
Coldwater Pondsnail Stagnicola woodruffi CWS, ON, Parks
Deertoe Truncilla truncata CWS, ON, Parks
Purplecap Valvata Valvata perdepressa CWS, ON, Parks
Globose Dome Ventridens ligera CWS, ON, Parks

Mosses (21)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Orkney Notchwort Anastrepta orcadensis BC, CWS, Parks
(common name not available) Apotreubia hortoniae BC, CWS, Parks
Fan Moss Forsstroemia trichomitria CWS, ON, Parks
Velenovsky's Moss Hilpertia velenovskyi BC, CWS, NT, NU, Parks
Woods Whipwort Mastigophora woodsii BC, CWS, Parks
(common name not available) Sphagnum cyclophyllum CWS, NS, Parks
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Great Bear Lake Sieve-tooth Moss Coscinodon arctolimnius CWS, NT, Parks
(common name not available) Gollania turgens BC, CWS, Parks, YT
(common name not available) Trematodon asanoi BC, CWS, Parks
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pacific Volcano Moss Brachydontium olympicum BC, CWS, Parks, YT
(common name not available) Buxbaumia minakatae CWS, NL, NS, ON, Parks
Blunted Earwort Diplophyllum obtusatum CWS, NL, ON, Parks, QC
Schleicher's Silk Moss Entodon schleicheri AB, BC, CWS, NT, Parks
(common name not available) Fabronia ciliaris CWS, MB, Parks
Pygmy Pocket Moss Fissidens exilis BC, CWS, NS, ON, Parks, QC
River Scalewort Frullania riparia CWS, Parks, QC
Funaria Moss Funaria flavicans CWS, ON, Parks
Mountain Brook Moss Hygrohypnum montanum CWS, NB, NL, NS, Parks, PE, QC
Delicate Luster Moss Isopterygium tenerum CWS, NS, Parks
Porter's Twisted Moss Tortula porteri CWS, ON, Parks
(common name not available) Trematodon longicollis CWS, ON, Parks

Reptiles (12)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Smooth Greensnake Opheodrys vernalis CWS, MB, NB, NS, ON, Parks, PE, QC, SK
Group 2 - Mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Ring-necked Snake Diadophis punctatus CWS, MB, NB, NS, ON, Parks, QC
Northern watersnake Nerodia sipedon sipedon CWS, ON, Parks, QC
DeKay's Brownsnake Storeria dekayi CWS, ON, Parks, QC
Plains Gartersnake Thamnophis radix AB, CWS, MB, Parks, SK
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Green Sea Turtle Chelonia mydas CWS, Parks
Northern Alligator Lizard Elgaria coerulea BC, CWS, Parks
Kemp's Ridley Sea Turtle Lepidochelys kempii Atlantic Ocean, CWS, NS, Parks
Red-bellied Snake Storeria occipitomaculata CWS, MB, NB, NS, ON, Parks, QC
Terrestrial Gartersnake Thamnophis elegans AB, BC, CWS, Parks
Northwestern Gartersnake Thamnophis ordinoides BC, CWS, Parks
Common Gartersnake Thamnophis sirtalis AB, BC, CWS, MB, NB, NS, NT, ON, Parks, QC, SK

Terrestrial mammals (7)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Silver-haired Bat Lasionycteris noctivagans AB, BC, CWS, MB, NB, NS, NT, ON, Parks, QC, SK, YT
Eastern Red Bat Lasiurus borealis AB, BC, CWS, MB, NB, NS, NT, ON, Parks, QC, SK
Hoary Bat Lasiurus cinereus AB, BC, CWS, MB, NB, NS, NT, ON, Parks, QC, SK, YT
Muskox Ovibos moschatus CWS, NT, NU, Parks, YT
Great Basin Pocket Mouse Perognathus parvus BC, CWS, Parks
Group 2 - mid priority candidates
No candidates currently listed
Group 3 - Low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pronghorn Antelope Antilocapra americana AB, CWS, Parks, SK
Western Spotted Skunk Spilogale gracilis BC, CWS, Parks

Vascular plants (9)

An expanded vascular plants candidate list of over 500 vascular plants, grouped into two priority classes, is now available to the public in an excel worksheet file. This list is provided with the understanding that it is a working copy undergoing modification. In preparing the list, information from the General Status of Species in Canada review process, undertaken by all federal, provincial and territorial jurisdictions, is taken into account when species are ranked for inclusion on the list. Please contact the COSEWIC secretariat for a copy of the list at ec.cosepac-cosewic.ec@canada.ca.

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Alpine Lady's-mantle Alchemilla alpina CWS, NL, Parks, QC
Smooth Clustered Sedge Carex aggregata CWS, ON, Parks
Black-edged Sedge Carex nigromarginata CWS, ON, Parks
Meadow Thistle Cirsium scariosum BC, CWS, Parks, QC
Pumpkin Ash Fraxinus profunda CWS, ON, Parks
Maleberry Lyonia ligustrina CWS, NS, Parks
California Swordfern Polystichum californicum BC, CWS, Parks
Dune Goldenrod Solidago simplex CWS, NB, ON, Parks
Dwarf Western Trillium Trilium ovatum BC, CWS, Parks

Group 2 - mid priority candidates and group 3 - low priority candidates

An expanded vascular plants candidate list of over 500 vascular plants, grouped into two priority classes, is now available to the public in an excel worksheet file. This list is provided with the understanding that it is a working copy undergoing modification. In preparing the list, information from the General Status of Species in Canada review process, undertaken by all federal, provincial and territorial jurisdictions, is taken into account when species are ranked for inclusion on the list. Please contact the COSEWIC secretariat for a copy of the list at ec.cosepac-cosewic.ec@canada.ca.

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