The following tags are used to highlight each species' conservation status as assessed on the respective IUCN Red List:
EX
Extinct
No reasonable doubt that the last individual has died.
EW
Extinct in the wild
Known only to survive in captivity or as a naturalized populations well outside its previous range.
CR
Critically endangered
The species is in imminent risk of extinction in the wild.
EN
Endangered
The species is facing an extremely high risk of extinction in the wild.
VU
Vulnerable
The species is facing a high risk of extinction in the wild.
NT
Near threatened
The species does not meet any of the criteria that would categorise it as risking extinction but it is likely to do so in the future.
LC
Least concern
There are no current identifiable risks to the species.
DD
Data deficient
There is inadequate information to make an assessment of the risks to this species.
Order: Rodentia (rodents)
Eurasian beaversRed squirrelGarden dormouseSouthwestern water voleYellow-necked mouseSouth American coypu, established in
Navarre and
Catalonia as a result of escapes from
fur farms.
Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two
incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the
capybara can weigh up to 45 kg (99 lb).
The lagomorphs comprise two families,
Leporidae (
hares and
rabbits), and Ochotonidae (
pikas). Though they can resemble
rodents, and were classified as a
superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.
The order Erinaceomorpha contains a single family, Erinaceidae, which comprise the
hedgehogs and
gymnures. The hedgehogs are easily recognised by their spines while gymnures look more like large rats.
Alcathoe batEuropean free-tailed batMediterranean horseshoe bat
The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals.
The order Cetacea includes
whales,
dolphins and
porpoises. They are the mammals most fully
adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.
The even-toed ungulates are
ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in
perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to humans.
^Palomo, L. J.; Gisbert, J.; Blanco, J. (2007).
"Libro Rojo de los Mamíferos Terrestres de España"(PDF). Atlas y Libro Rojo de los Mamíferos Terrestres de España. Madrid: Dirección General para la Biodiversidad-SECEM-SECEMU.
^Ceña, J.C. et al. (2004). Castor europeo en Navarra y La Rioja. Galemys: Boletín informativo de la Sociedad Española para la conservación y estudio de los mamíferos 16(2): 91–98.
^McDonald, R. A.; Abramov, A. V.; Stubbe, M.; Herrero, J.; Maran, T.; Tikhonov, A.; Cavallini, P.; Kranz, A.; Giannatos, G.; Kryštufek, B. & Reid, F. (2019).
"Mustela nivalis". IUCN Red List of Threatened Species. 2019: e.T70207409A147993366.
^Skumatov, D.; Abramov, A.V.; Herrero, J.; Kitchener, A.; Maran, T.; Kranz, A.; Sándor, A.; Stubbe, M.; Saveljev, A.; Savour-Soubelet, A.; Guinot-Ghestem, M.; Zuberogoitia, I.; Birks, J.D.S.; Weber, A.; Melisch, R. & Ruette, S. (2016).
"Mustela putorius". IUCN Red List of Threatened Species. 2016: e.T41658A45214384.{{
cite journal}}: CS1 maint: multiple names: authors list (
link)
^Herrero, J.; Acevedo, P.; Arnal, M.C.; Fernández de Luco, D.; Fonseca, C.; García-González, R.; Pérez, J.M. & Sourp, E. (2020) [amended version of 2020 assessment].
"Capra pyrenaica". IUCN Red List of Threatened Species. 2020: e.T3798A195855497.
^Palomo, L. J., Gisbert, J., & Blanco, J. C. (Eds.). (2007). Atlas y libro rojo de los mamíferos terrestres de España. Madrid: Organismo Autónomo de Parques Nacionales.
^Even though the Atlantic population is extinct, individuals from the Pacific still rarely disperse into the Atlantic. One was seen off the coast of Spain in 2010.
IUCN.
The following tags are used to highlight each species' conservation status as assessed on the respective IUCN Red List:
EX
Extinct
No reasonable doubt that the last individual has died.
EW
Extinct in the wild
Known only to survive in captivity or as a naturalized populations well outside its previous range.
CR
Critically endangered
The species is in imminent risk of extinction in the wild.
EN
Endangered
The species is facing an extremely high risk of extinction in the wild.
VU
Vulnerable
The species is facing a high risk of extinction in the wild.
NT
Near threatened
The species does not meet any of the criteria that would categorise it as risking extinction but it is likely to do so in the future.
LC
Least concern
There are no current identifiable risks to the species.
DD
Data deficient
There is inadequate information to make an assessment of the risks to this species.
Order: Rodentia (rodents)
Eurasian beaversRed squirrelGarden dormouseSouthwestern water voleYellow-necked mouseSouth American coypu, established in
Navarre and
Catalonia as a result of escapes from
fur farms.
Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two
incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the
capybara can weigh up to 45 kg (99 lb).
The lagomorphs comprise two families,
Leporidae (
hares and
rabbits), and Ochotonidae (
pikas). Though they can resemble
rodents, and were classified as a
superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.
The order Erinaceomorpha contains a single family, Erinaceidae, which comprise the
hedgehogs and
gymnures. The hedgehogs are easily recognised by their spines while gymnures look more like large rats.
Alcathoe batEuropean free-tailed batMediterranean horseshoe bat
The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals.
The order Cetacea includes
whales,
dolphins and
porpoises. They are the mammals most fully
adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.
The even-toed ungulates are
ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in
perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to humans.
^Palomo, L. J.; Gisbert, J.; Blanco, J. (2007).
"Libro Rojo de los Mamíferos Terrestres de España"(PDF). Atlas y Libro Rojo de los Mamíferos Terrestres de España. Madrid: Dirección General para la Biodiversidad-SECEM-SECEMU.
^Ceña, J.C. et al. (2004). Castor europeo en Navarra y La Rioja. Galemys: Boletín informativo de la Sociedad Española para la conservación y estudio de los mamíferos 16(2): 91–98.
^McDonald, R. A.; Abramov, A. V.; Stubbe, M.; Herrero, J.; Maran, T.; Tikhonov, A.; Cavallini, P.; Kranz, A.; Giannatos, G.; Kryštufek, B. & Reid, F. (2019).
"Mustela nivalis". IUCN Red List of Threatened Species. 2019: e.T70207409A147993366.
^Skumatov, D.; Abramov, A.V.; Herrero, J.; Kitchener, A.; Maran, T.; Kranz, A.; Sándor, A.; Stubbe, M.; Saveljev, A.; Savour-Soubelet, A.; Guinot-Ghestem, M.; Zuberogoitia, I.; Birks, J.D.S.; Weber, A.; Melisch, R. & Ruette, S. (2016).
"Mustela putorius". IUCN Red List of Threatened Species. 2016: e.T41658A45214384.{{
cite journal}}: CS1 maint: multiple names: authors list (
link)
^Herrero, J.; Acevedo, P.; Arnal, M.C.; Fernández de Luco, D.; Fonseca, C.; García-González, R.; Pérez, J.M. & Sourp, E. (2020) [amended version of 2020 assessment].
"Capra pyrenaica". IUCN Red List of Threatened Species. 2020: e.T3798A195855497.
^Palomo, L. J., Gisbert, J., & Blanco, J. C. (Eds.). (2007). Atlas y libro rojo de los mamíferos terrestres de España. Madrid: Organismo Autónomo de Parques Nacionales.
^Even though the Atlantic population is extinct, individuals from the Pacific still rarely disperse into the Atlantic. One was seen off the coast of Spain in 2010.
IUCN.