Red-necked Grebe

Podiceps grisegena

General Status Rank: 
Secure
ELCODE: 
ABNCA03020
Common Name: 
Red-necked Grebe
Scientific Name: 
Podiceps grisegena
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Taxonomy
Group: 
Bird
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Aves
Order: 
Podicipediformes
Family: 
Podicipedidae
References: 
B004
General Biology

Female Age at Maturity

2 years
References: 
R076

Longevity

unknown
Habitat
small shallow lakes, or protects marsh areas and bays on larger lakes;medium to large ponds, small shallow lakes, shallow bays of larger lakes, riverine wetlands
References: 
H108
MAF2
R076
Distribution

Ecozones

Southern Arctic, Taiga Cordillera, Taiga Plains, Taiga Shield, Boreal Cordillera, Boreal Plains
References: 
B004
MAF2

Distribution

0.38(R076); 0.60 (MAF2); range covers ~75% of the total NT area (range extent visually estimated from range map in "Distribution of birds in NWT & Nunavut: 2009 Review" (CWS)).
Score: 
G
References: 
MAF2
R076
Winter Distribution Description: 
pacific coast from Alaska to California, and Atlantic coast from southern Canada to southern US

Number of Occurrences

large;if individual nest sites (ponds or lakes) are considered occurrences then >100 in Yellowknife region alone
References: 
B004
MAF2

Historical Distribution

most areas within treeline
References: 
MAF2

Area of Occupancy

moving away from areas of human habitation; stable in NWT
Score: 
-
References: 
MAF2
R076
H308
Population

Population Size

More than 20,000 (MAF2)
Score: 
F
References: 
MAF2
R076

Density

RNGR density 3.2 birds/km2 in Yellowknife area but lower (0.48 and 0.08 birds/km2) in higher latitudes (Stout, B.E. and Nuechterlein, G.L. 1999. Red-necked Grebe (Podiceps grisegena). In The Birds Of North America, No.465 (A.Poole and F. Gill, eds.).
References: 
H308
W116
Trends

Trends

wintering popns increasing therefore likely breeding popns also increasing;numbers stable on YKSA (MAF2) and presumed so in NWT - BBS / CBC data indicate increase overall; BBS and CBC data indicate population is either stable or increasing(H308) state population stable from 1986-1996 near YK (MAF2)
Score: 
G
References: 
MAF2
R076
H308
Threats

Threats

ice-storms during migration, oil spills and other pollutants on wintering areas, loss of habitat in southern portions of range,threats on migration and wintering areas could have significant impacts on pops. in NWT in futurepiscivorous bird, easily bioaccumulates heavy metals such as lead and mercury, high levels of mercury found in egg shells, thin-shelled and inviable eggs recorded for RNGR (W116).
Score: 
C
References: 
B004
H108
MAF2
W116

Intrinsic Vulnerability

oil spills and other pollution of wintering habitat - in NT limited - localized wetland drainage and alteration, moulting and staging areas completely unknown but some probably occur in NWT and threats cannot be assessed
Score: 
-
References: 
B004
H108
MAF2
W116
General Status Rank
Rank: 
Secure
S Rank: 
S5
Decision Process Description: 
Drafted by Committee, Vicky Jonhston, Leslie Wakelyn, Suzanne Carriere, Jim Hines, Mike Fournier in 2000; Reviewed in 2005 by J. Hines and C. Swoboda, no change in status; Reviewed in 2010;no change ; Reviewed by Ian Fife and Cindy Wood CWS in 2015, no change
Last Updated: 
February 9, 2015
Status Designations

Canada – Assessment by Committee on the Status of Endangered Wildlife in Canada

COSEWIC Status: 
Not At Risk
References: 
R076

References

Age Of Maturity

  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return

Area of Occupancy

  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return
  • Cindy Wood and Ian Fife (2015) e-copy - H308 Return
COSEWIC Status
  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return

Density

  • Cindy Wood and Ian Fife (2015) e-copy - H308 Return
  • Stout, B.E. and Nuechterlein, G.L. (1999) In The Birds Of North America, No.465 (A.Poole and F. Gill, eds.). - W116 Return

Ecozones

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return

Habitat

  • Fournier M.A. (1999) Personal Communication. - H108 Return
  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return

Historical Distribution

  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return

Intrinsic Vulnerability

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Fournier M.A. (1999) Personal Communication. - H108 Return
  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • Stout, B.E. and Nuechterlein, G.L. (1999) In The Birds Of North America, No.465 (A.Poole and F. Gill, eds.). - W116 Return

NWT Known Subspecies

American Ornithologists' Union (1998) Check-List of North American Birds. A.O.U. Seventh Edition - MAF6 Return

Number of Occurrences

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return

Population Size

Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
,
de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return

Range Extent

  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return

Short Term Trends

  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • de Smet KD (1982) Status report on the red-necked grebe Podiceps grisegena in Canada. Committee on the Status of Endangered Wildlife in Canada (COSEWIC) RWED Library Folder - R076 Return
  • Cindy Wood and Ian Fife (2015) e-copy - H308 Return

Taxonomy

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Threats

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Fournier M.A. (1999) Personal Communication. - H108 Return
  • Fournier, M.A. and J.E. Hines (1998) Breeding ecology and status of the Red-necked Grebe Podiceps grisegena in the subarctic of the Northwest Territories. Canadian Field-Naturalist 112(3):474-480 - MAF2 Return
  • Stout, B.E. and Nuechterlein, G.L. (1999) In The Birds Of North America, No.465 (A.Poole and F. Gill, eds.). - W116 Return