Worthen’s Sparrow (Spizella wortheni) has a very small and declining population, and fledging success is very low. It is therefore listed as Endangered. Available at: https://www.iucnredlist.org/species/22721182/118141491
Category: Extinction Edition
Darwin’s Fox
Darwin’s Fox (Lycalopex fulvipes) was previously classified in 2004 and 2008 as Critically Endangered based on an estimated population size of “less than 250 mature individuals with at least 90% of the population occurring in one subpopulation” (Chiloé Island) (Jiménez and McMahon 2004). New distribution information (Vila et al. 2004, D’Elia et al. 2013, Farías et…
El Oro Parakeet
El Oro Parakeet (Pyrrhura orcesi) has a very small population. Remaining habitat is fragmented, and both range and population are thought to be declining. As a result, the species qualifies as Endangered. Available at: https://www.iucnredlist.org/species/22685851/181549899
Anegada Rock Iguana
Although it is believed the Anegada Rock Iguana (Cyclura pinguis) population size has increased somewhat since the headstarting programme began releasing subadults, the habitat is continuing to be degraded. The significant population reduction (> 80%) for this species occurred over a much longer time period than three generations (66 years) ago due to the introduction…
Cuban Crocodile
Cuban Crocodile (Crocodylus rhombifer) is endemic to Cuba. The species is assessed as Critically Endangered (CR A2cde), keeping the same status as in the previous assessment (2008). Population decline is still estimated at >80% over the last three generations (approximately 75 years). This reduction in population size is based on the decline in habitat extent…
Endangered
A taxon is Endangered (EN) when the best available evidence indicates that it meets any of the criteria A to E for Endangered, and it is therefore considered to be facing a very high risk of extinction in the wild. Learn more at: https://www.iucnssg.org/iucnredlist.html
Vulnerable
A taxon is Vulnerable (VU) when the best available evidence indicates that it meets any of the criteria A to E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild. Learn more at: https://www.iucnssg.org/iucnredlist.html
Pied Tamarin
Pied Tamarin (Saguinus bicolor) is considered Critically Endangered due to a projected population reduction of 80% or more in the next 18 years (three generations) due to serious multiple threats suffered within a very concentrated range in and around the city of Manaus: deforestation and habitat fragmentation related to expanding rural settlements and agriculture, livestock…
Least Concern
A taxon is Least Concern (LC) when it has been evaluated against the criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Widespread and abundant taxa are included in this category. Learn more at: https://www.iucnssg.org/iucnredlist.html
Vancouver Island Marmot
Vancouver Island Marmot (Marmota vancouverensis) is listed as Critically Endangered because in 2016 it was estimated that there were between 90-130 individuals occurring in two subpopulations in the wild. Its area of occupancy is less than 10 km², and there has been extensive clear cutting of its forest habitat. A population reduction of greater than…