Roosevelt Lake
- Lake name:
- Roosevelt Lake
- Location:
- Arizona
- HydroLAKE ID:
- 9422
- GRanD ID:
- 647
- Latitude:
- 33.677097
- Longitude:
- -111.156236
- Surface area (km2):
- 40.3
- Basin type:
- reservoir
- Dam completion date:
- 1911
- Primary vegetation for nesting:
- tamarisk
- Management agency:
- Arizona Game and Fish Department
- Lake use:
- irrigation hydroelectricity water supply
- Region associations:
- Salt River; Tonto Basin
- Comments:
- Roosevelt Lake and San Carlos Lake are the two largest reservoirs of AZ.
Summary of Surveys (2)
Survey Citation:
Jenness, D. 2020. Extreme water level fluctuations limit breeding of western and Clark's grebes at San Carlos Lake, Arizona. Arizona Birds - Journal of Arizona Field Ornithologists. Volume 2020. Arizona.
-
Time period
2008, 2019 -
Source
Article -
Both Western and Clarks?
Y
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | presence | 2008, 2009, 2011, 2016, 2017, 2019 |
| Most Recent Adults | 1 to 100 | presence | 2019 |
| Max Nests | 1 to 100 | presence | 2008, 2009, 2011, 2016, 2017, 2019 |
| Most Recent Nests | 1 to 100 | presence | 2019 |
| Max Chicks | 1 to 100 | presence | 2008, 2009, 2011, 2016, 2017, 2019 |
| Most Recent Chicks | 1 to 100 | presence | 2019 |
Comments:
Not a survey but a statement that Western and Clark's grebes were first confirmed nesting at Roosevelt Lake at 2008 (Jenness unpubl. data, Corman 2008). Breeding was also confirmed in 2009, 2011, 2016, 2017, and 2019 (eBird 2019). Water level fluctuations are not as drastic as at San Carlos Lake. There was also a brood observed in January 2011 (Corman and Burger 2011), evidence of an early nesting period that may span the whole year. This long breeding period was noted in other parts of the state and at Lake Mead by Parmelee and Parmelee (1997) in response to favorable conditions year-round and water level fluctuation. Roosevelt Lake and San Carlos Lake are the two largest reservoirs of AZ.
Survey Citation:
Manning, A. 2006. Colony list, unpublished data.
-
Time period
2006 or prior -
Source
Summary -
Both Western and Clarks?
Y
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | presence | 2006 or prior |
| Most Recent Adults | 1 to 100 | presence | 2006 or prior |
| Max Nests | 1 to 100 | presence | 2006 or prior |
| Most Recent Nests | 1 to 100 | presence | 2006 or prior |
| Max Chicks | N/A | N/A | N/A |
| Most Recent Chicks | N/A | N/A | N/A |
Comments:
Unpublished data from Ann Manning with the Utah Division of Wildlife, forwarded by Gary Ivey. Ivey said year saved was 2006 but otherwise unknown when this list was determined by Manning, hence year noted as 2006 or prior. This is on a list of known colonies of Western and Clark's grebes. No year nor other info provided.
Sources of Information
- Messager, M. L., B. Lehner, G. Grill, I. Nedeva, and O. Schmitt. 2016. Estimating the volume and age of water stored in global lakes using a geo-statistical approach. Nature Communications 7:13603. Data is available at www.hydrosheds.org.; Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, New York: NASA Socioeconomic Data and Applications Center (SEDAC).
- Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, New York: NASA Socioeconomic Data and Applications Center (SEDAC).
- Roosevelt Lake Wildlife Area