AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Branta canadensis | |
Authority | Linnaeus, 1758 | |
Family | Anatidae | |
Order | Anseriformes | |
Class | Aves | |
Phylum | Chordata | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not known |
Life form / Life stage (?) | Not entered |
Sociability / Life stage (?) |
References (not structured): Jansson K, Josefsson M, Weidema I (2008)NOBANIS – Invasive Alien Species Fact Sheet –Branta canadensis. – From: Online Database of the North European and Baltic Network on Invasive Alien Species – NOBANIS www.nobanis.org Comments: They are highly social animals, and sometimes groups, called crèches, are formed with goslings of several parents being watched over by a couple of adults. |
Reproductive frequency (?) | Iteroparous References (not structured): Fabricius E, Norgren H (1987) Lär känna Kanadagåsen. Svenska Jägareförbundet, Stockholm (56 pp) Comments: A clutch of typically 4–7 eggs is laid in a scrape on the ground, filled with grass, moss or twigs and lined with soft feathers and down. Nests are typically close to water and often on islands or raised ground that affords a good lookout for potential predators. Both sexes defend the nest vigorously. |
Reproductive type (?) | Sexual References: Fabricius E, Norgren H (1987) Lär känna Kanadagåsen. Svenska Jägareförbundet, Stockholm (56 pp) Comments: B. canadensis become sexually mature after two years but usually begin breeding at three or four years of age. They form monogamous pairs that may remain together for many years. |
Developmental trait (?) | Brooding References: Fabricius E, Norgren H (1987) Lär känna Kanadagåsen. Svenska Jägareförbundet, Stockholm (56 pp) Comments: B. canadensis has a fairly synchronous breeding season, with eggs laid in the northern hemisphere mainly between mid March and mid May. |
Characteristic feeding method / Life stage (?) |
References (not structured): French L, Parkhurst J (2001) Managing wildlife damage: Canada goose (Branta canadensis). Virginia Cooperative Extension Publication No. 420-203. Comments: Feeds on aquatic plants, grasses, herbs, and roots, including planted crops. Juveniles require a high protein diet and will consume insects, small crustaceans and molluscs attached to aquatic plants. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Not entered |
Habitat modifying ability potential (?) | Not entered |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Not entered |
Known human health impact? | Not entered |
Known economic impact? | Not entered |
Known measurable environmental impact? | Not entered |
Included in the Target Species list? | Not entered |
Association with vessel vectors (?) | Not entered |
Molecular information | Not entered |
Created by | Romualda Chuševė, 2011-11-03 |
Last update by | Aleksas Narščius, 2012-10-08 |