Southern Idaho

Lake name:
Southern Idaho
Location:
Idaho
Comments:
No location given because this entry is about Southern Idaho in general.

Summary of Surveys (5)

Survey Citation:
Ivey, G.L., and C.P. Herziger. 2006. Intermountain west waterbird conservation plan, version 1.2. A plan associated with the Waterbird Conservation for the Americas Initiative. Published by U.S. Fish and Wildlife Service Pacific Region, Portland, Oregon.

  • Type
    shore
  • Time period
    1993
  • Source
    Conservation Plan
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 501 to 1000 660 1993
Most Recent Adults 501 to 1000 660 1993
Max Nests 101 to 500 330 1993
Most Recent Nests 101 to 500 330 1993
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Appendix D, Table D-2, given as population data for "Other sites S. ID 1993" is 330 nests, 660 area population estimate (nests x 2), population data source is Trost and Gerstell 1994. However, Trost and Gerstell 1994 states the total range of 242 to 360 Western grebe nests so I'm not sure how it is 330 nests in Appendix D, Table D-2 of the IWWCP. Subtracting Minidoka NWR's # nest estimate for 1993 doesn't equal 330 nests.

Survey Citation:
Ivey, G.L., and C.P. Herziger. 2006. Intermountain west waterbird conservation plan, version 1.2. A plan associated with the Waterbird Conservation for the Americas Initiative. Published by U.S. Fish and Wildlife Service Pacific Region, Portland, Oregon.

  • Type
    shore
  • Time period
    1993
  • Source
    Conservation Plan
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 101 to 500 206 1993
Most Recent Adults 101 to 500 206 1993
Max Nests 101 to 500 103 1993
Most Recent Nests 101 to 500 103 1993
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Appendix D, Table D-2, given as population data for "S. ID 1993" is 103 nests, 206 area population estimate (nests x 2), population data source is Trost and Gerstell 1994. Trost and Gerstell 1994 states the total range as 65 to 103 Clark's grebe nests.

Survey Citation:
Trost, C. H. 1985. Status and distribution of colonial nesting waterbirds in Idaho, 1985. 110.

  • Type
    shore
  • Time period
    10 June 1984, 18 July 1984
  • Source
    Report
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults >1000 presumably >1000 1984
Most Recent Adults >1000 presumably >1000 1984
Max Nests 501 to 1000 810 1984
Most Recent Nests 501 to 1000 810 1984
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

This entry is for total range of 583 to 810 nests of Western grebes in Southern Idaho that Trost calculates for Table 2 for 1985.

Survey Citation:
Trost, C. H., A. Gerstell. 1994. Status and distribution of colonial nesting waterbirds in southern Idaho, 1993. 110.

  • Type
    shore
  • Time period
    26 May 1993, 20 August 1993
  • Source
    Report
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 501 to 1000 presumably >500 1993
Most Recent Adults 501 to 1000 presumably >500 1993
Max Nests 101 to 500 360 1993
Most Recent Nests 101 to 500 360 1993
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

This entry is for total range of 242 to 360 nests of Western grebes in Southern Idaho that Trost calculates for Table 2 for 1993.

Survey Citation:
Trost, C. H., A. Gerstell. 1994. Status and distribution of colonial nesting waterbirds in southern Idaho, 1993. 110.

  • Type
    shore
  • Time period
    26 May 1993, 20 August 1993
  • Source
    Report
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 101 to 500 presumably >100 1993
Most Recent Adults 101 to 500 presumably >100 1993
Max Nests 101 to 500 103 1993
Most Recent Nests 101 to 500 103 1993
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

This entry is for total range of 65 to 103 nests of Ckark's grebes in Southern Idaho that Trost calculates for Table 3 for 1993. 27 of the 59 total grebe surveys (both Western and Clark's) have Clark's #s. Also gives range in percent Clark's grebes as 2.5 to 40%, mean = 14.7%.

Sources of Information