|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Ekstrom, J., Butchart, S., Newton, P., Calvert, R.
This species has an extremely 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 stable, 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.
|Previously published Red List assessments:|
- 2009 – Least Concern (LC)
- 2008 – Least Concern (LC)
- 2004 – Least Concern (LC)
- 2000 – Lower Risk/least concern (LR/lc)
- 1994 – Lower Risk/least concern (LR/lc)
- 1988 – Lower Risk/least concern (LR/lc)
|Range Description:||This species breeds along the coast of Antarctica and outlying islands, including the South Sandwich Islands (Islas Sandwich del Sur), South Orkney Islands, South Shetland Islands, Bouvet Island (to Norway) and Peter Island. At sea it can range as far north as the coats of South Africa, Australia and New Zealand, and South America up to central Chile and southern Brazil1.
Angola (Angola); Antarctica; Argentina; Australia; Bouvet Island; Brazil; Chile; Ecuador; Falkland Islands (Malvinas); Namibia; New Zealand; Peru; Saint Helena, Ascension and Tristan da Cunha; South Africa; South Georgia and the South Sandwich Islands; Uruguay
Present - origin uncertain:
French Southern Territories; Heard Island and McDonald Islands; Norfolk Island
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||97500000|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|♦ Upper elevation limit (metres):||300|
|Range Map:||Click here to open the map viewer and explore range.|