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Calidris ptilocnemis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES CHARADRIIFORMES SCOLOPACIDAE

Scientific Name: Calidris ptilocnemis
Species Authority: (Coues, 1873)
Common Name/s:
English – Rock Sandpiper

Assessment Information [top]

Red List Category & Criteria: Least Concern     ver 3.1
Year Published: 2009
Assessor/s: BirdLife International
Reviewer/s: Bird, J., Butchart, 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very 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:
2008 – Least Concern
2004 – Least Concern

Geographic Range [top]

Countries:
Native:
Canada; Japan; Russian Federation; United States
Vagrant:
China
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Systems: Terrestrial; Freshwater; Marine
Citation: BirdLife International 2009. Calidris ptilocnemis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 24 May 2012.
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