Chen caerulescens

Status_ne_offStatus_dd_offStatus_lc_onStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES ANSERIFORMES ANATIDAE

Scientific Name: Chen caerulescens
Species Authority: (Linnaeus, 1758)
Common Name/s:
English – Snow Goose

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Assessor/s: BirdLife International
Reviewer/s: Butchart, S. & Symes, A.
Contributor/s:
Justification:
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
History:
2009 – Least Concern
2008 – Least Concern
2004 – Least Concern

Geographic Range [top]

Countries:
Native:
Canada; China; Greenland; India; Japan; Korea, Republic of; Mexico; Russian Federation; Russian Federation; United States
Vagrant:
Anguilla; Bahamas; Barbados; Belgium; Belize; Bermuda; Bulgaria; Cuba; Czech Republic; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Honduras; Iceland; Ireland; Italy; Kazakhstan; Korea, Democratic People's Republic of; Latvia; Lithuania; Marshall Islands; Netherlands; Norway; Poland; Portugal; Puerto Rico; Romania; Russian Federation; Saint Pierre and Miquelon; Spain; Trinidad and Tobago; Turks and Caicos Islands; United Kingdom; Virgin Islands, U.S.
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population Trend: Increasing

Habitat and Ecology [top]

Systems: Terrestrial; Freshwater; Marine

Bibliography [top]

Delany, S.; Scott, D. 2006. Waterbird population estimates. Wetlands International, Wageningen, The Netherlands.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Murphy-Klassen, H. M.; Underwood, T. J.; Sealy, S. G.; Czyrny, A. A. 2005. Long-term trends in spring arrival dates of migrant birds at Delta Marsh, Manitoba, in relation to climate change. The Auk 122: 1130-1148.
Citation: BirdLife International 2012. Chen caerulescens. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 22 May 2013.
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