Intra- and Interspecific Territorialism in Mixed Colonies of the Canada Goose Branta canadensis and the Greylag Goose Anser anser

1974 ◽  
Vol 5 (1) ◽  
pp. 25 ◽  
Author(s):  
Eric Fabricius ◽  
Anders Bylin ◽  
Anders Ferno ◽  
Tommy Radesater
Keyword(s):  
Branta Canadensis ◽  
Canada Goose ◽  
Anser Anser ◽  
Greylag Goose

scholarly journals A white feathered area on the forehead is more common in hybrids of Greylag Goose Anser anser and Greater Canada Goose Branta canadensis than in the parent species

Ornis Svecica ◽  
2011 ◽  
Vol 21 (1) ◽  
pp. 37-44
Author(s):  
C G Gustavsson
Keyword(s):  
Quantitative Comparison ◽  
Branta Canadensis ◽  
Canada Goose ◽  
Canada Geese ◽  
Parent Species ◽  
Anser Anser ◽  
White Area ◽  
Greylag Goose ◽  
Greylag Geese

This study evaluated prevalence and extent of white areas on heads of Greylag Goose × Greater Canada Goose hybrids. A white area which bordered the bill and then to various degrees extended over the forehead was found in 17 out of 20 hybrids. This was significantly more common in the hybrids than in the parent species. The white areas in the hybrids were also significantly larger than in those 82 out of 191 adult Greylag Geese which had some amount of white area. There were too few Greater Canada Geese with a white area outside the normal pale cheek patch to make a meaningful similar quantitative comparison also with them. No white area was seen in the three presumed 1st Calendar Year (CY) hybrids but when two of them were seen again in September of the 2nd CY there were some pale feathers that were interpreted as the beginning of white areas. The white areas in hybrids are therefore regarded to be adult features which like in several pure Anser species begin to develop during the 2nd CY.

scholarly journals Draft Genome Sequences of Escherichia coli Strains FP2 and FP3, Isolated from the Canada Goose (Branta canadensis)

2018 ◽  
Vol 7 (9) ◽  
Author(s):  
Allison L. Denny ◽  
Susan E. Arruda
Keyword(s):  
Escherichia Coli ◽  
Draft Genome ◽  
Branta Canadensis ◽  
Canada Goose ◽  
Genome Sequences ◽  
Content Type

Draft genomes of two strains of Escherichia coli, FP2 and FP3, isolated from the feces of the Canada goose (Branta canadensis), were sequenced. Genome sizes were 5.26 Mb with a predicted G+C content of 50.54% (FP2) and 5.07 Mb with a predicted G+C content of 50.41% (FP3).

Greylag Goose (Anser anser Linnaeus, 1758).

2020 ◽  
pp. 213-222
Author(s):  
Lorinda A. Hart ◽  
Colleen T. Downs
Keyword(s):  
Environmental Impact ◽  
Anser Anser ◽  
Greylag Goose

Abstract This chapter describes the taxonomic nomenclature, distribution, morphology, diet, reproduction, behaviour, habitats, pathways of invasion, environmental impact, control and relevance to humans of the greylag goose (Anser anser).

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