Amblyrhynchus cristatus ssp. wikelskii. The IUCN Red List of Threatened Species 2020
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Date Issued
2020Subject Terms
IGUANASWILDLIFE CONSERVATION
IUCN
GALAPAGOS
INVASIVE SPECIES
ENDANGERED SPECIES
ANIMAL-HUMAN RELATIONSHIPS
PREDATORS
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e.T152331459A152331476
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https://www.iucnredlist.org/species/152331459/152331476Abstract
The Santiago Marine Iguana is found on the islands of Santiago, Bartolomé, Pinzón, Rábida, and very likely nearby islets in the Galápagos Islands, Ecuador. The estimated extent of occurrence is 1,164 km2 by minimum convex polygon and the area of occupancy is estimated at 444 km2 . The population size is poorly known and estimated at 450–4,000 total iguanas, with fewer than 2,400 mature individuals. Genetic data indicate a critically low effective population size. Overall population trend is unknown, but is subject to extreme reductions and fluctuations during El Niño events, which are predicted to intensify in the future with ongoing climate change. Invasive Black Rats threaten this iguana more severely when compared to other subspecies, as the islands in its distribution have scarce food resources for rats. Santiago Marine Iguanas are threatened by a region-wide increase in human population and visitation that has multiplied the impacts from stress, marine pollution, habitat degradation, and chance of invasive species introductions and emergent diseases. Land-based tourist presence and intensity has been shown to have a significant overall negative effect on iguana health....Type
Technical ReportRights
Copyright 2020 International Union for Conservation of Nature and Natural Resourcesae974a485f413a2113503eed53cd6c53
10.2305/IUCN.UK.2020-2.RLTS.T152331459A152331476.en
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