Chilean Woodstar (Eulidia yarrellii) is classified as Critically Endangered based on evidence that it has undergone an extremely rapid population decline. Urgent research and targeted conservation actions are now required to understand, halt and reverse this decline. Available at: https://www.iucnredlist.org/species/22688244/181468935
Institution: Universitat Autònoma de Barcelona
Mangrove Finch
Mangrove Finch (Geospiza heliobates) has an extremely small, severely fragmented range, and only two viable subpopulations. Recent surveys suggest that the number of locations and mature individuals are both declining significantly, and consequently it qualifies as Critically Endangered. Available at: https://www.iucnredlist.org/species/22723786/182523098
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…
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…
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…
Mojave Desert Tortoise
Mojave Desert Tortoise (Gopherus agassizii) was assessed as Critically Endangered A2bce+A4bce based on population reduction (decreasing density), habitat loss of over 80% over three generations (90 years), including past reductions and predicted future declines, as well as the effects of disease (upper respiratory tract disease / mycoplasmosis). Available at: https://www.iucnredlist.org/species/97246272/3150871
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
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…
Worthen’s Sparrow
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
Giant Kangaroo Rat
Giant Kangaroo Rat (Dipodomys ingens) is listed as Endangered because its area of occupancy (AOO) is less than 5,000 km², its population is severely fragmented, and there is an ongoing decline in the extent of occurrence (EOO), AOO, and extent and quality of its habitat. Available at: https://www.iucnredlist.org/species/6678/220892537