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    Amblyrhynchus cristatus ssp. venustissimus. The IUCN Red List of Threatened Species2020

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    Issue Date
    2020
    Author
    MacLeod, A.
    Nelson, K.
    Grant, Tandora D.
    Subject
    IGUANAS
    WILDLIFE CONSERVATION
    IUCN
    GALAPAGOS
    INVASIVE SPECIES
    ENDANGERED SPECIES
    ANIMAL-HUMAN RELATIONSHIPS
    PREDATORS
    Begin page
    e.T175537718A2993292
    Pages
    17
    
    Metadata
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    DOI
    10.2305/IUCN.UK.2020-2.RLTS.T175537718A2993292.en
    Alternative link
    https://www.iucnredlist.org/species/175537718/2993292
    Abstract
    The Española Marine Iguana is found on the islands of Española, Floreana, Gardner-by-Floreana, Champion, and very likely their satellite cays in the Galápagos Islands, Ecuador. The estimated extent of occurrence is 1,184 km2 by minimum convex polygon and the area of occupancy is estimated at 308 km 2 . The population size is poorly known and crudely estimated at 3,700–37,000 total iguanas with fewer than 22,200 mature individuals. Genetic data indicate a small to moderate 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. This iguana is threatened by invasive alien Black Rats, feral cats, and free-roaming pigs and dogs. Española 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 further 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. This subspecies qualifies for listing as Endangered.
    URI
    http://hdl.handle.net/20.500.12634/596
    Type
    Technical Report
    Rights
    Copyright 2020 International Union for Conservation of Nature and Natural Resources
    ae974a485f413a2113503eed53cd6c53
    10.2305/IUCN.UK.2020-2.RLTS.T175537718A2993292.en
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