Cozumel Harvest Mouse (Reithrodontomys spectabilis) is assessed as Critically Endangered because this species is known only from Cozumel Island, Mexico where it is estimated to exist in small subpopulations (< 50 individuals/subpopulation) with an estimate of less than 200 individuals in the entire population. The species has not recovered from negative impacts from introduced species…
Class: Mammalia
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
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…
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…
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…
Guanaco
Guanaco (Lama guanicoe) is considered to be of Least Concern based upon its wide continental distribution (around one million km2), its presumed total population size (around one million adults), and the presence of numerous protected areas across its range of distribution (56 protected areas covering around 146,000 km2). However, Guanaco actual conservation measures continue to…
Amazonian Manatee
Amazonian Manatee (Trichechus inunguis) is listed as Vulnerable based on a suspected population decline of at least 30% within the next three generations (assuming a generation length of 25 years) due primarily to ongoing levels of hunting throughout most of the region, coupled with increasing incidental calf mortality in the recent years, global warming trends…
Reindeer
Reindeer (Rangifer tarandus) is categorized as Vulnerable A2a due to an observed 40% decline over three generations (about 21-27 years) across the circum-Arctic countries, when Rangifer declined from about 4,800,000 to 2,890,410 individuals. Uncertainty is high about the extent of the decline and the under-lying mechanisms except at a general level. Extent and causes of…
Arctic fox
Vulpes lagopus, the Arctic fox, is a small fox species adapted to cold environments. Its genome sequencing aids in understanding fox genetics, adaptation to Arctic climates, and evolution. 10.1111/1755-0998.13397 (Apr 21, 2021)
Common bottlenose dolphin
Tursiops truncatus, the bottlenose dolphin, is a highly intelligent marine mammal species. Its genome sequencing aids in understanding dolphin genetics, evolution, and adaptation to aquatic environments. 10.1038/nature10530 (Oct 12, 2011)