Grey fox (Urocyon cinereogenteus) COSEWIC assessment and update update status report: chapter 14
Technical summary
Urocyon cinereoargenteus
Grey fox
Grey fox
Renard gris
Manitoba, Ontario
Extent and area information
Extent of occurrence (EO) (km 2 ).
Unknown
Specify trend (decline, stable, increasing, unknown).
Unknown
Are there extreme fluctuations in EO (> 1 order of magnitude)?
No
Area of occupancy (AO) (km 2 ).
Unknown
Specify trend (decline, stable, increasing, unknown).
Unknown
Are there extreme fluctuations in AO (> 1 order of magnitude)?
No
Number of extant locations.
1 known (Pelee Island)
Specify trend in # locations (decline, stable, increasing, unknown).
Stable
Are there extreme fluctuations in # locations (>1 order of magnitude)?
No
Habitat trend: specify declining, stable, increasing or unknown trend in area, extent or quality of habitat.
Unknown
Population information
Generation time (average age of parents in the population) (indicate years, months, days, etc.).
about 2 years
Number of mature individuals (capable of reproduction) in the Canadian population (or, specify a range of plausible values).
30-250
Total population trend: specify declining, stable, increasing or unknown trend in number of mature individuals.
Unknown
If decline, % decline over the last/next 10 years or 3 generations, whichever is greater (or specify if for shorter time period).
N/A
Are there extreme fluctuations in number of mature individuals (> 1 order of magnitude)?
Unknown
Is the total population severely fragmented (most individuals found within small and relatively isolated (geographically or otherwise) populations between which there is little exchange, i.e., ≤ 1 successful migrant / year)?
Pelee Island may be the only breeding population in Canada
List each population and the number of mature individuals in each.
Pelee Island, unknown
Specify trend in number of populations (decline, stable, increasing, unknown).
Unknown
Are there extreme fluctuations in number of populations (>1 order of magnitude)?
No
Threats (actual or imminent threats to populations or habitats)
- Stochastic events because of the very small number of individuals
- Limited habitat availability
Rescue effect (immigration from an outside source)
Does species exist elsewhere (in Canada or outside)?
U.S.
Status of the outside population(s)?
Not at Risk
Is immigration known or possible?
Probable
Would immigrants be adapted to survive here?
Probably
Is there sufficient habitat for immigrants here?
Unknown
Quantitative Analysis
N/A
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