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    Conolophus pallidus. The IUCN Red List of Threatened Species 2020

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    Issue Date
    2020
    Author
    Gentile, G.
    Grant, Tandora D.
    Subject
    IGUANAS
    WILDLIFE CONSERVATION
    IUCN
    ENDANGERED SPECIES
    GALAPAGOS
    INVASIVE SPECIES
    ANIMAL-HUMAN RELATIONSHIPS
    HABITATS
    Begin page
    e.T5239A3014028
    Pages
    13
    
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    DOI
    10.2305/IUCN.UK.2020-2.RLTS.T5239A3014028.en
    Alternative link
    https://www.iucnredlist.org/species/5239/3014028
    Abstract
    The Barrington Land Iguana is only found on Santa Fé (Barrington) Island, Galápagos Archipelago, Ecuador, and has an estimated area of occupancy and extent of occurrence of 40 km2 . Based on the denuded landscape caused by non-native goats, historic human consumption, and low numbers of iguanas observed in the 1960s–1970s, it is estimated that the iguana population had been reduced by at least 50% up to a point three generations in the past (52 years) and probably continued until after the goats were eradicated in 1972. The most recent survey in 2005 estimated their population to be 3,500–4,000 mature adults and potentially stable, although it was unknown if they had neared carrying capacity. Molecular analysis also shows extremely low genetic variation and richness compared to sampled populations of the Common Land Iguana (Conolophus subcristatus). Heavy predation pressure on this congregatory nesting iguana by Galápagos Hawks may have affected the rate of population recovery since goats were eradicated (1972). The recent introduction to the island of >500 juvenile Española Tortoises that compete with iguanas for scarce food resources may have an impact on the future stability of the iguana population.
    URI
    http://hdl.handle.net/20.500.12634/583
    Type
    Technical Report
    Rights
    Copyright 2020 International Union for Conservation of Nature and Natural Resources
    ae974a485f413a2113503eed53cd6c53
    10.2305/IUCN.UK.2020-2.RLTS.T5239A3014028.en
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