Northern California
View Surveys (1)
View Sources (1)
Grebe Survey Summary
- Max Adults: 10600
- Year: 2008
- Most Recent Adults: 10600
- Year: 2008
- Survey Type: N/A
- Most Common Threats Reported: N/A
- Lake name:
- Northern California
- Location:
- California
- Region associations:
- Northern California
- Comments:
- General description of a large region. This is a summary of Northern California lakes (Tule Lake NWR, Lake Earl, Eagle Lake, Mountain Meadows Reservoir, Lake Almanor, Thermalito Afterbay, East Park Reservoir, Clear Lake, and Mendota Wildlife Area).
Surveys (1)
Survey Citation:
Robison, K., R. Weems, and D. Anderson. 2008. Western and Clark's Grebe conservation and management in California. Annual report for year four (2008). Report for American Trader and Kure/ Stuyvesant Trustee Councils and National Fish and Wildlife Foundation, California.
-
Type
shore; boat; air -
Time period
2008 -
Source
Report -
Both Western and Clarks?
Y
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | >1000 | 10600 | 2008 |
| Most Recent Adults | >1000 | 10600 | 2008 |
| Max Nests | >1000 | 1370 | 2008 |
| Most Recent Nests | >1000 | 1370 | 2008 |
| Max Chicks | >1000 | 1566 | 2008 |
| Most Recent Chicks | >1000 | 1566 | 2008 |
Comments:
From Table 3, a summary of Northern California lakes from this report (Tule Lake NWR, Lake Earl, Eagle Lake, Mountain Meadows Reservoir, Lake Almanor, Thermalito Afterbay, East Park Reservoir, Clear Lake, and Mendota Wildlife Area). Northern California lakes support important nesting colonies and a majority of the grebe population in CA (over 70% in 2008). Specifically, Tule Lake, Clear Lake, Eagle Lake, and Lake Almanor support a majority of the 2003 breeding population of grebes (Ivey 2004). These four lakes had over 100 nests each in 2008.