Climbing prairie rose (Rosa setigera) COSEWIC assessment and status report addendum: chapter 5
Revised technical summary information
prepared by the
COSEWIC Vascular Plants Specialists Subcommittee
for
Climbing Prairie Rose
Rosa setigera
(based on the Addendum submitted by the Ontario Ministry of Natural resources)
Facts:
- Perennial shrub of open habitats, opportunistic and adaptable to various sites and prone to extirpation at sites subject to shading due to successional changes
- Currently documented at 82-99 extant Canadian sites (in 2002) of a total of 104 current and historic sites; 33 sites considered extant in 1986
- Documented as occurring in many natural areas and protected sites
- Current counts of mature shrubs, based on 2002 data for only a portion of the species’ range, total 491 clumps of which 443 were flowering. This compares with 125-150 estimated in the update report based on fieldwork during 2001, a dry year when flowering was apparently reduced and the shrubs not as readily detected.
- No overall decline in the Canadian population has been demonstrated although historical extirpations are recorded, original prairie habitats have been greatly reduced in size historically, and recent losses and declines in individual populations have been noted; more sites are now known, however, than recorded in the original status report, likely based on more intensive surveys
- Extent of occurrence is about 3200 km2
- Area of occupancy is perhaps 20 km2 or more
- Threats include land development (especially in Windsor area); successional changes of open habitats; inappropriate management of conservation areas and roadsides; unrestricted recreational use of all terrain vehicles (ATVs); invasive exotic shrubs.
COSEWIC mandate, membership and definitions
COSEWIC mandate
The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) determines the national status of wild species, subspecies, varieties, and nationally significant populations that are considered to be at risk in Canada. Designations are made on all native species for the following taxonomic groups: mammals, birds, reptiles, amphibians, fish, lepidopterans, molluscs, vascular plants, lichens, and mosses.
COSEWIC membership
COSEWIC comprises representatives from each provincial and territorial government wildlife agency, four federal agencies (Canadian Wildlife Service, Parks Canada Agency, Department of Fisheries and Oceans, and the Federal Biosystematic Partnership), three nonjurisdictional members and the co-chairs of the species specialist groups. The committee meets to consider status reports on candidate species.
Definitions
- Species
-
Any indigenous species, subspecies, variety, or geographically defined population of wild fauna and flora.
- Extinct (X)
-
A species that no longer exists.
- Extirpated (XT)
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A species no longer existing in the wild in Canada, but occurring elsewhere.
- Endangered (E)
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A species facing imminent extirpation or extinction.
- Threatened (T)
-
A species likely to become endangered if limiting factors are not reversed.
- Special Concern (SC)Footnote 1
-
A species of special concern because of characteristics that make it particularly sensitive to human activities or natural events.
- Not at Risk (NAR)Footnote 2
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A species that has been evaluated and found to be not at risk.
- Data Deficient (DD)Footnote 3
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A species for which there is insufficient scientific information to support status designation.
Canadian Wildlife Service
The Canadian Wildlife Service, Environment Canada, provides full administrative and financial support to the COSEWIC Secretariat.
The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) was created in 1977 as a result of a recommendation at the Federal-Provincial Wildlife Conference held in 1976. It arose from the need for a single, official, scientifically sound, national listing of wildlife species at risk. In 1978, COSEWIC designated its first species and produced its first list of Canadian species at risk. Species designated at meetings of the full committee are added to the list.
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