Amblyrhynchus cristatus ssp. sielmanni
|Scientific Name:||Amblyrhynchus cristatus ssp. sielmanni|
|Species Authority:||Eibl-Eibesfeldt, 1962|
|Red List Category & Criteria:||Vulnerable B2ac(iv) ver 3.1|
|Assessor(s):||Nelson, K., Snell, H. & Wikelski, M.|
|Reviewer(s):||Hudson, R. & Alberts, A. (Iguana Red List Authority)|
The marine iguana Amblyrhynchus cristatus is endemic to the Galápagos Islands, Ecuador. A. c. sielmanni is found on Pinta Island. Extent of occurrence is estimated at less than 100 km² and area of occupancy at less than 10 km². The current population is estimated to be around 2,500–6,000 individuals. The main threat to the population is fluctuations in population size as a result of El Niño effects.
|Range Description:||A. c. sielmanni occurs on Pinta Island. Extent of occurrence is estimated at less than 1,000 km² and area of occupancy at less than 10 km².|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Average generation length is 5 years for females and 12 years for males. The total current population is estimated at between 2,500–6,000 individuals.|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||The world's only marine lizard species. Adults and juveniles occur on rocky coast and intertidal zones. Adult females can be found nesting up to 2 km inland and adult males can be found in marine waters, up to depths of 20 m.|
|Major Threat(s):||El Niño causes extreme fluctuations in population size. The population may also be threatened by pollution.|
A. cristatus is included on CITES Appendix II. It is under "Special Law" in the Galápagos and occurs in three protected areas: Galápagos National Park and National Marine Reserve; Galápagos Islands Man and Biosphere Reserve (UNESCO); and Galápagos Islands World Heritage Site.
Conservation actions recommended for the subspecies include: further surveys for the subspecies, taxonomic and limiting factor research, and monitoring of the population and its habitat.
|Citation:||Nelson, K., Snell, H. & Wikelski, M. 2004. Amblyrhynchus cristatus ssp. sielmanni. The IUCN Red List of Threatened Species 2004: e.T44178A10856626.Downloaded on 23 July 2017.|