Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska
Lesser Canada Geese (Branta canadensis parvipes) are widespread throughout interior regions of Alaska and Canada, yet there have been no published studies documenting basic aspects of their nesting biology. We conducted a study to determine reproductive parameters of Lesser Canada Geese nesting alon...
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ftjcfn:oai:canadianfieldnaturalist.ca:article/539 2023-05-15T15:46:14+02:00 Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska Ely, Craig R. Pearce, John M. Ruess, Roger W. 2008-01-01 application/pdf https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539 https://doi.org/10.22621/cfn.v122i1.539 eng eng The Ottawa Field-Naturalists' Club https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539/539 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539 doi:10.22621/cfn.v122i1.539 The Canadian Field-Naturalist; Vol. 122 No. 1 (2008); 29-33 0008-3550 Lesser Canada Goose Branta canadensis parvipes clutch eggs nesting ecology Tanana River Alaska info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2008 ftjcfn https://doi.org/10.22621/cfn.v122i1.539 2021-09-02T18:53:56Z Lesser Canada Geese (Branta canadensis parvipes) are widespread throughout interior regions of Alaska and Canada, yet there have been no published studies documenting basic aspects of their nesting biology. We conducted a study to determine reproductive parameters of Lesser Canada Geese nesting along the Tanana River near the city of Fairbanks, in interior Alaska. Fieldwork was conducted in May of 2003, and consisted of locating nests along the riparian corridor between Fairbanks and Northpole, Alaska. Nests were found on gravel islands and shore habitats along the Tanana River, and were most commonly observed among driftwood logs associated with patches of alder (Alnus spp.) and willow (Salix spp.). Peak of nest initiation was 3-8 May, with a range from 27 April to 20 May; renesting was likely. Clutches ranged in size from 2 to 7 eggs and averaged 4.6 eggs. There was a negative correlation between clutch size and date of nest initiation. Egg size (mean mass = 128 g) was similar to other medium-sized Canada Geese. A positive correlation between egg size and clutch size was likely related to female age. Nineteen of 28 nests (68%) were active when visited; nests located on islands with nesting Mew Gulls (Larus canus) were more likely to be active than nests located elsewhere. Evidence at nest sites implicated Bald Eagles (Haliaeetus leucocephalus) and Red Foxes (Vulpes vulpes) as nest predators. Article in Journal/Newspaper Branta canadensis Canada Goose Larus canus Alaska The Canadian Field-Naturalist (E-Journal) Canada Fairbanks The Canadian Field-Naturalist 122 1 29 |
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Open Polar |
collection |
The Canadian Field-Naturalist (E-Journal) |
op_collection_id |
ftjcfn |
language |
English |
topic |
Lesser Canada Goose Branta canadensis parvipes clutch eggs nesting ecology Tanana River Alaska |
spellingShingle |
Lesser Canada Goose Branta canadensis parvipes clutch eggs nesting ecology Tanana River Alaska Ely, Craig R. Pearce, John M. Ruess, Roger W. Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
topic_facet |
Lesser Canada Goose Branta canadensis parvipes clutch eggs nesting ecology Tanana River Alaska |
description |
Lesser Canada Geese (Branta canadensis parvipes) are widespread throughout interior regions of Alaska and Canada, yet there have been no published studies documenting basic aspects of their nesting biology. We conducted a study to determine reproductive parameters of Lesser Canada Geese nesting along the Tanana River near the city of Fairbanks, in interior Alaska. Fieldwork was conducted in May of 2003, and consisted of locating nests along the riparian corridor between Fairbanks and Northpole, Alaska. Nests were found on gravel islands and shore habitats along the Tanana River, and were most commonly observed among driftwood logs associated with patches of alder (Alnus spp.) and willow (Salix spp.). Peak of nest initiation was 3-8 May, with a range from 27 April to 20 May; renesting was likely. Clutches ranged in size from 2 to 7 eggs and averaged 4.6 eggs. There was a negative correlation between clutch size and date of nest initiation. Egg size (mean mass = 128 g) was similar to other medium-sized Canada Geese. A positive correlation between egg size and clutch size was likely related to female age. Nineteen of 28 nests (68%) were active when visited; nests located on islands with nesting Mew Gulls (Larus canus) were more likely to be active than nests located elsewhere. Evidence at nest sites implicated Bald Eagles (Haliaeetus leucocephalus) and Red Foxes (Vulpes vulpes) as nest predators. |
format |
Article in Journal/Newspaper |
author |
Ely, Craig R. Pearce, John M. Ruess, Roger W. |
author_facet |
Ely, Craig R. Pearce, John M. Ruess, Roger W. |
author_sort |
Ely, Craig R. |
title |
Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
title_short |
Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
title_full |
Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
title_fullStr |
Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
title_full_unstemmed |
Nesting Biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska |
title_sort |
nesting biology of lesser canada geese, branta canadensis parvipes, along the tanana river, alaska |
publisher |
The Ottawa Field-Naturalists' Club |
publishDate |
2008 |
url |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539 https://doi.org/10.22621/cfn.v122i1.539 |
geographic |
Canada Fairbanks |
geographic_facet |
Canada Fairbanks |
genre |
Branta canadensis Canada Goose Larus canus Alaska |
genre_facet |
Branta canadensis Canada Goose Larus canus Alaska |
op_source |
The Canadian Field-Naturalist; Vol. 122 No. 1 (2008); 29-33 0008-3550 |
op_relation |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539/539 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/539 doi:10.22621/cfn.v122i1.539 |
op_doi |
https://doi.org/10.22621/cfn.v122i1.539 |
container_title |
The Canadian Field-Naturalist |
container_volume |
122 |
container_issue |
1 |
container_start_page |
29 |
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1766380924071575552 |