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- Response Statements (1062 record(s) found.)
Response Statement - Carolina Mantleslug (2020-12-02)
In Canada, this large terrestrial slug inhabits undisturbed older-growth forests and riparian areas in the Carolinian Forest Region of Ontario, near the northern limit of its global range. The earliest reliable records (1994, 1995) are from two mainland sites in southwestern Ontario and Pelee Island. Recent searches have confirmed only a small number of additional sites within this small range. Suitable habitat in Canada has experienced historica ...
Response Statement - Chestnut-collared Longspur (2020-12-02)
This striking grassland songbird is only found on North America’s Great Plains. It has experienced a population decline of more than 50% over the past decade, and about 95% since 1970. The Canadian breeding range has contracted to the south and west since the 1970s. The primary threat is degradation and fragmentation of native grasslands, especially through conversion to agriculture. Ongoing loss of habitat in the core wintering region of n ...
Response Statement - Coastrange Sculpin, Cultus Lake population (2020-12-02)
This small-bodied freshwater fish is found in a single lake that drains into the lower Fraser River, in southwestern British Columbia. This area is undergoing increasing urbanization and recreational use. Every night, this unique population migrates from the lake bottom toward the lake surface to feed. A recent introduction of an exotic predator, Smallmouth Bass, is a serious concern to the long term persistence of the sculpin. The species is als ...
Response Statement - Columbia Sculpin (2020-12-02)
This small freshwater fish is endemic to the Columbia River watershed in southern British Columbia where it has a small geographic distribution. It is a bottom-dwelling and sedentary fish as an adult, affected by multiple past impacts and ongoing threats. It is particularly susceptible to declines in habitat area and quality from drought and changes in water flow resulting from water management and climate change, in addition to pollution and inv ...
Response Statement - Gillman's Goldenrod (2020-12-02)
This perennial plant species is a Great Lakes endemic now found in Canada only on one island off the south shore of Manitoulin Island in Lake Huron. The species is threatened by habitat disturbance caused by invasive plants.
Response Statement - Great Basin Spadefoot (2020-12-02)
This toad-like amphibian is one of a suite of grassland and open woodland species restricted to the arid southern interior of British Columbia. It prefers to breed in temporary waterbodies, and requires terrestrial habitats with loose, friable soils for refuge from freezing and drought. Frequent widespread droughts in this area result in highly variable breeding success and recruitment among years, causing populations to fluctuate greatly. Curren ...
Response Statement - Manitoba Oakworm Moth (2020-12-02)
This large moth has a small global distribution, most of which is in Canada, and restricted to a small area in southern Manitoba and the adjacent United States. Localized population irruptions occurred irregularly through the 1900s, but their frequency declined and the last one was in 1997; no individuals have been detected since 2000. Threats are primarily related to declines of Bur Oak, its larval host plant. Bur Oak is susceptible to secondary ...
Response Statement - Plains Hog-nosed Snake (2020-12-02)
This large prairie snake, distinguished by its prominent upturned snout, belongs to a suite of grassland species restricted to the arid interior of North America. It has a widespread but patchy distribution in southern Alberta, Saskatchewan and Manitoba. Habitat loss is mostly historical, but conversion of grasslands to more intensive agricultural uses continues. The current population size is probably under 10,000 mature individuals, but robust ...
Response Statement - Puvirnituq Mountain Draba (2020-12-02)
The entire global distribution of this small, perennial mustard plant is restricted to two small sites on a rare type of igneous rock rubble on the tundra of Nunavik, in Northern Québec. Its known range occupies less than 13 km2. Although there are too few data to determine trends, the population size of this species is undoubtedly very small, estimated to be less than 1000 individuals. Habitat changes associated with climate change are po ...
Response Statement - Reversed Haploa Moth (2020-12-02)
This rare moth is restricted to four areas of southwestern Ontario, which are considered separate subpopulations (Lambton County, Norfolk County, London, and Essex County). It has only been detected in proximity to oak savanna, oak woodland and dunes. In Ontario, up to 98% of oak savanna has been lost and remaining oak woodlands are small and fragmented. The quality of remaining habitat continues to decline as a result of fire suppression and inv ...
Response Statement - Ringed Seal (2020-12-02)
This small seal needs sea ice to thrive. It is wide-ranging and is the most abundant marine mammal in the Canadian Arctic. It is an important species for Inuit and is the primary prey of Polar Bear. Its population levels and trends are uncertain, although the total population is about 2 million individuals. Aboriginal Traditional Knowledge from local communities across the species’ range suggests that its population status varies regionally ...
Response Statement - Rocky Mountain Sculpin, Missouri River populations (2020-12-02)
This small freshwater fish has a very restricted area of occurrence in the Milk and North Milk Rivers in southern Alberta, where it has been impacted by invasive species, habitat loss, and degradation from water diversion. These conditions have been exacerbated in recent years by drought conditions likely related to climate change and water management activities. While meeting criteria for Endangered, this species was designated Threate ...
Response Statement - Rocky Mountain Sculpin, Pacific populations (2020-12-02)
This small freshwater fish is restricted to a small number of streams within the Flathead River basin in southeastern British Columbia. It is sedentary as an adult and is susceptible to habitat degradation and sediment inputs from forest fires, road building and use, off-road activities, and droughts and warming temperatures due to climate change. It may qualify for Threatened if factors suspected of negatively impacting the species’ persis ...
Response Statement - Rocky Mountain Sculpin, Saskatchewan - Nelson River populations (2020-12-02)
This small freshwater fish has a very restricted area of occurrence in the St. Mary River in southern Alberta, where it has been impacted by invasive species, habitat loss, and degradation from water diversion. These conditions have been exacerbated in recent years by drought conditions likely exacerbated by climate change and water management activities. While meeting criteria for Endangered, this species was designated Threatened because t ...
Response Statement - Shagreen (2020-12-02)
This medium-sized terrestrial snail occurs in the Carolinian zone of southwestern Ontario, where it exists near the northern extremity of its global range. Historically, it is known from two sites in mainland Ontario and five islands in Lake Erie. It is currently known to persist only on two islands, where it inhabits rocky or open woods and can be found clustering under logs or rocks, and in leaf litter. Suitable Canadian habitat has experienced ...
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