Animalia > Chordata > Aves > Anseriformes > Anatidae > Branta bernicla > Branta bernicla nigricans

Branta bernicla nigricans (Lawrence's brant goose)

Synonyms: Anser nigricans (homotypic); Branta nigricans

Wikipedia Abstract

The black brant or Pacific brent goose (Branta bernicla nigricans) is a subspecies of the brant goose that breeds in Alaska and winters in Baja California. There are an estimated 115,000 black brant in the world and about 14,000 are taken each year by hunters. Fox predation of eggs is thought to be significant and, in 2006, the U.S. began a 5-year fox removal program. The population has been as high as 200,000 in 1981, and as low as 100,000 in 1987.
View Wikipedia Record: Branta bernicla nigricans

Attributes

Adult Weight [1]  2.866 lbs (1.30 kg)
Female Weight [1]  2.712 lbs (1.23 kg)
Male Weight [1]  3.02 lbs (1.37 kg)
Weight Dimorphism [1]  11.4 %

Protected Areas

Prey / Diet

Carex aquatilis (water sedge)[2]
Carex subspathacea (Hoppner's sedge)[2]
Puccinellia phryganodes (creeping alkaligrass)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Branta bernicla (Brent Goose)2
Chen canagica (Emperor Goose)2

Predators

Orcinus orca (Killer Whale)[3]

External References

Citations

Attributes / relations provided by
♦ 1Boyd, H., and LS Maltby. 1980. Weights and primary growth of Brent Geese Branta bernicla moulting in the Queen Elizabeth Islands, NWT, Canada. Ornis Scandinavica 11:135–141.
♦ 2Feeding ecology of Black Brant on the north slope of Alaska, Eileen F.W. Kiera, Canadian Wildlife Service, 1984
♦ 3Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0