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Lake Havasu

View on Full Map View Surveys (2) View Sources (11)

Grebe Survey Summary

  • Max Adults: ~3750
  • Year: N/A
  • Most Recent Adults: ~3750
  • Year: N/A
  • Survey Type: N/A
  • Most Common Threats Reported: N/A
Lake name:
Lake Havasu
Location:
California; Arizona
HydroLAKE ID:
9392
GRanD ID:
629
Latitude:
34.484480
Longitude:
-114.386501
Surface area (km2):
60.8
Basin type:
reservoir
Dam completion date:
1938
Management agency:
National Park Service; Arizona State Parks and Trails; Bureau of Land Management
Lake use:
water supply irrigation hydroelectricity
Region associations:
Colorado River - Lower Basin; Bill Williams River; Colorado River Aqueduct; Lake Havasu State Park; Central Arizona Project
Designations:
State Park; National Park
Comments:
This reservoir is on the California/Arizona border so refer to Arizona entry as well. It supplies water to the Metropolitan Water District of Southern California and to urban and agricultural communities in central and southern Arizona via the Central Arizona Project Aqueduct.

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.; Corman, T. E., and C. Wise-Gervais. 2005. Arizona Breeding Bird Atlas. University of New Mexico Press, Albuquerque, NM.

  • Time period
    1966
  • Source
    Article
  • 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 continued after 1966
Max Nests 1 to 100 presence 1966
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:

Not a survey but a statement that Western grebe nesting was first recorded at Lake Havasu in 1966 (Rosenberg et al. 1991) and continued from then but does not state for how many years. Prior to the atlas, Clark's grebes were noted to only nest here (Rosenberg et al. 1991). Rosenberg et al. (1991) also noted Western and Clark's grebes nesting on the north end of the lake and carried their chicks to Bill Williams River arm 31 miles away. Highest concentration of Clark's grebes is here and at Topock Marsh. See California's entry for Lake Havasu for additional Lake Havasu grebe data. California and Arizona entries for Lake Havasu combined in the Summary Table.

Survey Citation:
Ivey, G. L. 2004. Conservation assessment and management plan for breeding Western and Clark’s Grebes in California. Unpublished technical report. American Trader Trustee Council, California. . Accessed 15 January 2020.

  • Time period
    N/A
  • Source
    Conservation Assessment, Management Plan
  • Both Western and Clarks?
    N/A
Count Type Range Max Year
Max Adults >1000 ~3750 ?
Most Recent Adults >1000 ~3750 ?
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 entry to capture historical record of breeding grebes in CA prior to 2002. There were ~3750 adult grebes in Lake Havasu and noted as colony site, some year-round, but no year given and no other details (Garrett and Dunn 1981, Rosenberg et al. 1991).

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).
  • Lake Havasu Information
  • Lake Havasu Shoreline Sites
  • Lake Havasu Recreation
  • Lake Havasu State Park
  • Geographic Names Information System (GNIS)
  • Lake Havasu Advisories
  • Lake Havasu USGS Gaging Stations
  • Havasu National Wildlife Refuge
  • Parker Dam
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