Stobart Lake
- Lake name:
- Stobart Lake
- Location:
- Alberta
- Latitude:
- 50.9158333
- Longitude:
- -113.1838889
- Basin type:
- reservoir
- Primary vegetation for nesting:
- Schoenoplectus
- Management agency:
- Alberta Conservation Association; Alberta Environment and Parks; Ducks Unlimited Canada
- Region associations:
- Eagle Lake; Namaka Lake
- Comments:
- Network of lakes with Eagle and Namaka lakes and is a globally significant for migrating waterbirds. Stobart Lake is considered the most natural of the three lakes with extensive marsh habitat. Over a thousand Western grebes stopover this complex of lakes during migration. Nesting of grebes have also been observed in this complex.
Summary of Surveys (2)
Survey Citation:
COSEWIC. 2014. COSEWIC assessment and status report on the western grebe (Aechmophorus occidentalis) in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. 55 pp. www.registrelep-sararegistry.gc.ca/default_e.cfm
-
Type
shore; boat; air -
Time period
1970, 2011 -
Source
Report -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 101 to 500 | 500 | 1970-1990 |
| Most Recent Adults | 1 to 100 | ? | 2011 |
| Max Nests | N/A | N/A | N/A |
| Most Recent Nests | N/A | N/A | N/A |
| Max Chicks | N/A | N/A | N/A |
| Most Recent Chicks | N/A | N/A | N/A |
Comments:
From Table A.2, maximum counts of breeding Western grebes from surveys mostly conducted during nesting season from June and July (sourced from Wilson, A. and Smith, P.A. 2013. Distribution and population status of Western Grebes in Canada. Unpublished report for the Canadian Wildlife Service). Stated as 20 year chunks: 1970 - 1990 and 1991 - 2011 without breaking those down into years or other details.
Survey Citation:
Beyersbergen, G. W., W. A. Calvert, R. C. Bazin, S. J. Barry, and B. A. Gingras. 2009. Spatial and temporal distribution and abundance of the Franklin’s gull in the Canadian Prairie Provinces: 2005–2007. Canadian Wildlife Service Technical Report Series Number 504, Prairie and Northern Region. Edmonton, Alberta, Canada.
-
Type
shore; boat -
Time period
May 2007, June 2007 -
Source
Report -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | 12 | 2007 |
| Most Recent Adults | 1 to 100 | 12 | 2007 |
| Max Nests | N/A | N/A | N/A |
| Most Recent Nests | N/A | N/A | N/A |
| Max Chicks | N/A | N/A | N/A |
| Most Recent Chicks | N/A | N/A | N/A |
Comments:
This report was focused on Franklin's gull colonies but other waterbirds, such as western grebes, were counted as nesting in association with them. These are minimum counts of western grebes and not the target species so uncertain if this entry should be included.