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2012.2 |
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2012.2 |
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The IUCN Red List
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| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | AVES | CHARADRIIFORMES | HAEMATOPODIDAE |
| Scientific Name: | Haematopus unicolor | |||
| Species Authority: | Forster, 1844 | |||
Common Name/s:
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| Taxonomic Notes: | Haematopus unicolor (Sibley and Monroe 1990, 1993) has been split into H. unicolor and H. chathamensis following Turbott (1990). | |||
| Red List Category & Criteria: | Least Concern ver 3.1 | |||||||||
| Year Published: | 2012 | |||||||||
| Assessor/s: | BirdLife International | |||||||||
| Reviewer/s: | Butchart, S. & Symes, A. | |||||||||
| Contributor/s: | ||||||||||
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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 may be small, but it is not believed to 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. |
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| History: |
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| Countries: | Native: New Zealand |
| Range Map: | Click here to open the map viewer and explore range. |
| Population: | Estimate excludes totals for Haematopus chathamsensis, which is not split by Wetlands International (2006). |
| Population Trend: |
Increasing
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| Systems: | Terrestrial |
| Citation: | BirdLife International 2012. Haematopus unicolor. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013. |
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