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dc.contributor.authorMacLeod, A.
dc.contributor.authorNelson, K.
dc.contributor.authorGrant, Tandora D.
dc.date.accessioned2020-07-24T22:44:01Z
dc.date.available2020-07-24T22:44:01Z
dc.date.issued2020
dc.identifier.issn2307-8235
dc.identifier.doi10.2305/IUCN.UK.2020-2.RLTS.T152328291A2992772.en
dc.identifier.urihttp://hdl.handle.net/20.500.12634/587
dc.description.abstractThe Fernandina Marine Iguana is found on the islands of Fernandina, Isabela, Tortuga, and very likely other satellite cays in the Galápagos Islands, Ecuador. The estimated extent of occurrence is 8,845 km2 by minimum convex polygon and the area of occupancy is estimated at 2,288 km2 . The population size is poorly known and crudely estimated at 20,000–160,000 total iguanas with fewer than 96,000 mature individuals. 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 on Isabela Island. Fernandina 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. The population is estimated to have been reduced by at least 20–40% over the last three generations (18–24 years) due to the impacts of invasive alien predators, oil spills and urban pollution, and cyclic feast/famine fluctuations. Without significant invasive species control, declines are projected to continue in the near future, with a per cent reduction of at least 20–40% estimated over the past two generations and one generation into the future. This subspecies qualifies for listing as Vulnerable.
dc.relation.urlhttps://www.iucnredlist.org/species/152328291/2992772
dc.rightsCopyright 2020 International Union for Conservation of Nature and Natural Resources
dc.subjectIGUANAS
dc.subjectWILDLIFE CONSERVATION
dc.subjectIUCN
dc.subjectGALAPAGOS
dc.subjectINVASIVE SPECIES
dc.subjectPREDATORS
dc.titleAmblyrhynchus cristatus ssp. cristatus. The IUCN Red List of Threatened Species 2020
dc.title.alternativeAmblyrhynchus cristatus ssp. cristatus, Fernandina Marine Iguana
dc.typeTechnical Report
dc.source.beginpagee.T152328291A2992772
dc.source.numberofpages17
dcterms.dateAccepted2020
html.description.abstractThe Fernandina Marine Iguana is found on the islands of Fernandina, Isabela, Tortuga, and very likely other satellite cays in the Galápagos Islands, Ecuador. The estimated extent of occurrence is 8,845 km2 by minimum convex polygon and the area of occupancy is estimated at 2,288 km2 . The population size is poorly known and crudely estimated at 20,000–160,000 total iguanas with fewer than 96,000 mature individuals. 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 on Isabela Island. Fernandina 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. The population is estimated to have been reduced by at least 20–40% over the last three generations (18–24 years) due to the impacts of invasive alien predators, oil spills and urban pollution, and cyclic feast/famine fluctuations. Without significant invasive species control, declines are projected to continue in the near future, with a per cent reduction of at least 20–40% estimated over the past two generations and one generation into the future. This subspecies qualifies for listing as Vulnerable.


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