Author: Jacques Sirois
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
"Spring aerial surveys of migrating waterfowl were conducted at 14 sites in the North Arm of Great Slave Lake. In 1989, the timing of spring break-up was similar to that of two of the last three years. Almost 34 700 birds were recorded. Scaup were the most abundant birds followed by Tundra Swans, Canada Geese and 23 other species of waterfowl. At least 1% of the national population of Tundra Swans staged in the study area, hence its status as a Key Habitat Site for the Northwest Territories. Large numbers of Canvasbacks and sightings of other "prairie" species suggest that many drought-displaced birds occurred in the Great Slave Lake region in 1989. Waterbirds were particularly abundant in the lower Beaulieu River, at Goulet and Campbell bays, and in the lower Yellowknife River. Migration peaked in mid-May. By using a visibility correction factor, we estimate that over 11 000 birds were present in the study area on 16 May alone. The study area encompasses less than half of the North Arm's wetlands"--Abstract, p. i.
Spring Migration of Waterfowl in the North Arm of Great Slave Lake, 1989
Author: Jacques Sirois
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
"Spring aerial surveys of migrating waterfowl were conducted at 14 sites in the North Arm of Great Slave Lake. In 1989, the timing of spring break-up was similar to that of two of the last three years. Almost 34 700 birds were recorded. Scaup were the most abundant birds followed by Tundra Swans, Canada Geese and 23 other species of waterfowl. At least 1% of the national population of Tundra Swans staged in the study area, hence its status as a Key Habitat Site for the Northwest Territories. Large numbers of Canvasbacks and sightings of other "prairie" species suggest that many drought-displaced birds occurred in the Great Slave Lake region in 1989. Waterbirds were particularly abundant in the lower Beaulieu River, at Goulet and Campbell bays, and in the lower Yellowknife River. Migration peaked in mid-May. By using a visibility correction factor, we estimate that over 11 000 birds were present in the study area on 16 May alone. The study area encompasses less than half of the North Arm's wetlands"--Abstract, p. i.
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
"Spring aerial surveys of migrating waterfowl were conducted at 14 sites in the North Arm of Great Slave Lake. In 1989, the timing of spring break-up was similar to that of two of the last three years. Almost 34 700 birds were recorded. Scaup were the most abundant birds followed by Tundra Swans, Canada Geese and 23 other species of waterfowl. At least 1% of the national population of Tundra Swans staged in the study area, hence its status as a Key Habitat Site for the Northwest Territories. Large numbers of Canvasbacks and sightings of other "prairie" species suggest that many drought-displaced birds occurred in the Great Slave Lake region in 1989. Waterbirds were particularly abundant in the lower Beaulieu River, at Goulet and Campbell bays, and in the lower Yellowknife River. Migration peaked in mid-May. By using a visibility correction factor, we estimate that over 11 000 birds were present in the study area on 16 May alone. The study area encompasses less than half of the North Arm's wetlands"--Abstract, p. i.
Spring Migration of Waterfowl in the North Arm of Great Slave Lake, 1989
Author: Jacques Sirois
Publisher: Yellowknife, N.W.T. : Canadian Wildlife Service
ISBN: 9780662183136
Category : Water birds
Languages : en
Pages : 25
Book Description
Publisher: Yellowknife, N.W.T. : Canadian Wildlife Service
ISBN: 9780662183136
Category : Water birds
Languages : en
Pages : 25
Book Description
Progress Notes - Canadian Wildlife Service
Author: Canadian Wildlife Service
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 492
Book Description
Occasional Papers
Author: Canadian Wildlife Service
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 196
Book Description
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 196
Book Description
Spring Migration of Water Birds in the North Arm of Great Slave Lake, Northwest Territories, 1990
Author: Sirois, Jacques
Publisher: Canadian Wildlife Service
ISBN: 9780662206811
Category : Water birds
Languages : en
Pages : 8
Book Description
In May, 1990 the shoreleads of the North Arm of Great Slave Lake were surveyed to determine the abundance and distribution of loons, grebes, ducks, geese, swans, and coots and also assessed for the significance of this area as a spring staging site for water birds. The Canadian Wildlife Service recognizes sites that support at least 1% of the national population of at least one species or subspecies of migratory bird, for any portion of the year, as Key Habitat Sites. Recently, the east side of the North Arm was identified as a Key Habitat Site. This note provides further substantiation for this designation.
Publisher: Canadian Wildlife Service
ISBN: 9780662206811
Category : Water birds
Languages : en
Pages : 8
Book Description
In May, 1990 the shoreleads of the North Arm of Great Slave Lake were surveyed to determine the abundance and distribution of loons, grebes, ducks, geese, swans, and coots and also assessed for the significance of this area as a spring staging site for water birds. The Canadian Wildlife Service recognizes sites that support at least 1% of the national population of at least one species or subspecies of migratory bird, for any portion of the year, as Key Habitat Sites. Recently, the east side of the North Arm was identified as a Key Habitat Site. This note provides further substantiation for this designation.
The Colonial Waterbirds of Great Slave Lake, Northwest Territories
Author: Jacques Sirois
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 64
Book Description
The authors documented the diversity, abundance, distribution, and nesting chronology of the colonial waterbirds of Great Slave Lake in 1996-1995. All available historical information was reviewed.
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 64
Book Description
The authors documented the diversity, abundance, distribution, and nesting chronology of the colonial waterbirds of Great Slave Lake in 1996-1995. All available historical information was reviewed.
Key Migratory Bird Terrestrial Habitat Sites in the Northwest Territories and Nunavut
Author: Paul Bernard Latour
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 132
Book Description
Describes key terrestrial habitat areas that are essential to the welfare of various migratory bird species in Canada.
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 132
Book Description
Describes key terrestrial habitat areas that are essential to the welfare of various migratory bird species in Canada.
Technical Report Series
Author:
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 36
Book Description
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 36
Book Description
Microlog, Canadian Research Index
Author:
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 1550
Book Description
An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 1550
Book Description
An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.