Goose

This MedLibrary.org supplementary page on Goose is provided directly from the open source Wikipedia as a service to our readers. Please see the note below on authorship of this content, as well as the Wikipedia usage guidelines. To search for other content from our encyclopedia supplement, please use the form below:

Goose
Canada Goose, Branta canadensis
Canada Goose, Branta canadensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Superorder: Galloanserae
Order: Anseriformes
Family: Anatidae
Subfamily: Anserinae
Tribe: Anserini
Genera

Anser
Branta
and see text

Goose (plural: geese) is the English name for a considerable number of birds, belonging to the family Anatidae. This family also includes swans, most of which are larger than geese, and ducks, which are smaller.

This article deals with the true geese in the subfamily Anserinae, tribe Anserini.

A number of other waterbirds, mainly related to the shelducks, have "goose" as part of their name.

Contents

Etymology

Canada Goose
(Branta canadensis) gosling

Goose in its origins is one of the oldest words of the Indo-European languages (Crystal), the modern names deriving from the proto-Indo-European root, *ghans-, thence Sanskrit hamsa (feminine hamsii), Persian Ghaz, Latin anser, Greek khén etc.

In the Germanic languages, the root word led to Old English gōs with the plural gēs, German Gans and Old Norse gas. Other modern derivatives are Russian gus and Old Irish géiss; the family name of the cleric Jan Hus is derived from the Czech derivative husa.

The term goose applies to the birds in general, and to a female in particular. The word gander (Old English gandra) is used for a male in particular. Young birds before fledging are called goslings. A group of geese on the ground is called a gaggle; when flying in formation is called a wedge or a skein (see also list of collective nouns for birds).

True geese

The following are the living genera of true geese:

The following two genera are only tentatively placed in the Anserinae ; they may belong to the shelducks or form a subfamily on their own:

Either these or - more probably - the goose-like Coscoroba Swan is the closest living relative of the true geese.

Fossils of true geese are hard to assign to genus; all that can be said is that their fossil record, particularly in North America, is dense and comprehensively documents a lot of the different species of true geese that have been around since about 10 million years ago in the Miocene. The aptly-named Anser atavus ("Great-great-great-grandfather goose") from some 12 million years ago had even more plesiomorphies in common with swans. In addition, there are some goose-like birds known from subfossil remains found on the Hawaiian Islands. See Anserinae for more.

Geese are monogamous, living in permanent pairs throughout the year; however, unlike most other permanently monogamous animals, they are territorial only during the short nesting season. Paired geese are more dominant and feed more, two factors which result in more young being produced.1

Other birds called "geese"

There are a number of mainly southern hemisphere birds called "geese", most of which belong to the shelduck subfamily Tadorninae. These are:

The Blue-winged Goose, Cyanochen cyanopterus belongs either to these, or to lineage closer to ducks.

The Spur-winged Goose, Plectropterus gambensis, is most closely related to the shelducks, but distinct enough to warrant its own subfamily, the Plectropterinae.

The three species of small waterfowl in the genus Nettapus are named "pygmy geese", e.g. the Cotton Pygmy Goose (N. javanica). They seem to represent an ancient lineage like the Cape Barren Goose and the Spur-winged Goose.

A genus of prehistorically extinct seaducks, Chendytes, is sometimes called "diving-geese" due to their large size.

The unusual Magpie-goose is in a family of its own, the Anseranatidae.

The Northern Gannet, a seabird, is also known as the "Solan Goose" although it is a bird unrelated to the true geese, or any other Anseriformes for that matter.

See also

Notes

  1. ^ Lamprecht, Jürg (November, 1987). "Female reproductive strategies in bar-headed geese (Anser indicus): Why are geese monogamous?". Behavioral Ecology and Sociobiology (Springer Berlin / Heidelberg) 21 (5): 297-305. doi:10.1007/BF00299967, http://www.springerlink.com/content/g755510125632136/. Retrieved on November, 2008. 

References

External links

Wikispecies
Wikispecies has information related to:
Look up goose in Wiktionary, the free dictionary.

Wikipedia content modification information:

  • This page was last modified on 3 December 2008, at 23:47.

Wikipedia Authorship and Review

Wikipedia content provided here is not reviewed directly by MedLibrary.org. Wikipedia content is authored by an open community of volunteers and is not produced by or in any way affiliated with MedLibrary.org.

Wikipedia Usage Guidelines

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article on "Goose".

The URL for this specific entry is:

All Wikipedia text is available under the terms of the GNU Free Documentation License. (See Copyrights for details). Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc.