Amblyrhynchus cristatus ssp. sielmanni
| Kingdom |
Phylum |
Class |
Order |
Family |
| ANIMALIA |
CHORDATA |
REPTILIA |
SQUAMATA |
IGUANIDAE |
| Scientific Name: |
Amblyrhynchus cristatus ssp. sielmanni
|
| Species Authority: |
Eibl-Eibesfeldt, 1962 |
Common Name/s:
| English |
– |
Galapagos Marine Iguana, Pinta Marine Iguana, Sea Iguana |
| French |
– |
Amblyrhynche à crête, Iguane marin |
| Spanish |
– |
Iguana Marina |
|
Assessment Information
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| Red List Category & Criteria: |
Vulnerable
B2ac(iv)
ver 3.1
|
| Year Published: |
2004 |
| Assessor/s: |
Nelson, K., Snell, H. & Wikelski, M. |
| Reviewer/s: |
Hudson, R. & Alberts, A. (Iguana Red List Authority) |
| Contributor/s: |
|
Justification:
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.
|
Geographic Range
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| 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. |
| Countries: |
Native: Ecuador (Galápagos) |
| Range Map: |
Click here to open the map viewer and explore range. |
Population
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| 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.
|
| Population Trend: |
Unknown
|
Habitat and Ecology
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| 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.
|
| Systems: |
Terrestrial; Marine |
| Major Threat(s): |
El Niño causes extreme fluctuations in population size. The population may also be threatened by pollution.
|
Conservation Actions
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| Conservation Actions: |
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.
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