The lesser capybara (Hydrochoerus isthmius)[2] is a large semiaquatic rodent of the family Caviidae found in eastern Panama, northwestern Colombia, and western Venezuela.[3] The lesser capybara was described as a species in 1912, but was later re-categorized as a subspecies of the capybara (H. hydrochaeris). Following studies of anatomy and genetics in the mid-1980s, it was recommended that it again should be recognized as a separate species,[4] and this gained more widespread recognition in 1991,[5] although some continue to consider it a subspecies.[6]
The lesser capybara closely resembles the capybara, but adult lesser capybara typically weigh up to about 28 kg (62 lb), while adult capybara proper weigh at least 35 kg (77 lb) and often much more.[4][7] The lesser capybara breeds year-round, with an average litter size of 3.5.[1] Individuals may be diurnal or nocturnal and solitary or social depending on season, habitat, and hunting pressure.[1] This species is reported to be common in Panama, but rare in Venezuela.[1] It is threatened by subsistence hunting, the destruction of gallery forests, and swamp drainage, specifically that of the Magdalena River.[1] Its karyotype has 2n = 64 and FN = 104,[3][8] compared to 2n = 66 and FN = 102 for H. hydrochaeris.[8][9]
^ abcdeDelgado, C.; Emmons, L. (2016). "Hydrochoerus isthmius". IUCN Red List of Threatened Species. 2016: e.T136277A22189896. doi:10.2305/IUCN.UK.2016-2.RLTS.T136277A22189896.en. Retrieved 19 November 2021.
^Hydrochoerus isthmius (lesser capybara). University of Michigan Museum of Zoology, Animal Diversity Web. Retrieved on June 11, 2009.
^ abWoods, C.A.; Kilpatrick, C.W. (2005). "H. isthmius". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1556. ISBN 978-0-8018-8221-0. OCLC 62265494.
^ abJosé Roberto Moreira; Martin R. Alvarez; Teresa Tarifa; Víctor Pacheco; Andrew Taber; Diego G. Tirira; Emilio A. Herrera; Katia Maria P.M.B. Ferraz; Juanita Aldana-Domínguez; David W. Macdonald (2013). "Taxonomy, Natural History and Distribution of the Capybara". In J.R. Moreira; K.M.P.M.B. Ferraz; E.A. Herrera; D.W. Macdonald (eds.). Capybara. Springer. pp. 3–37. doi:10.1007/978-1-4614-4000-0_1. ISBN 978-1-4614-3999-8.
^Mones, Alvaro (1991). Monografía de la familia Hydrochoeridae (Mammalia: Rodentia): sistemática, paleontología, filogenía, bibliografía (in Spanish). Senckenbergische Naturforschende Gesellschaft. ISBN 978-3924500634. OCLC 243776591.
^Juan Carrascal V; Juan Linares A; Julio Chacón P (2011). "Comportamiento del Hydrochoerus hydrochaeris isthmius it is a good boi en un sistema productivo del departamento de Córdoba, Colombia". Revista MVZ Córdoba (in Spanish). 16 (3). doi:10.21897/rmvz.276.
^Harold Trapido (1949). "Gestation period, young, and maximum weight of the isthmian capybara, Hydrochoerus isthmius Goldman". Journal of Mammalogy. 30 (4): 433. doi:10.1093/jmammal/30.4.433.
^ abMones, A.; Ojasti, J. (16 June 1986). "Hydrochoerus hydrochaeris". Mammalian Species (264): 1–7. doi:10.2307/3503784. JSTOR 3503784. S2CID 250991487.
^Woods, C.A.; Kilpatrick, C.W. (2005). "H. hydrochaeris". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1556. ISBN 978-0-8018-8221-0. OCLC 62265494.
The lessercapybara (Hydrochoerus isthmius) is a large semiaquatic rodent of the family Caviidae found in eastern Panama, northwestern Colombia, and western...
member of the genus Hydrochoerus. The only other extant member is the lessercapybara (Hydrochoerus isthmius). Its close relatives include guinea pigs and...
adjacent southern Central America (lessercapybara) and in the tropical to subtropical regions of South America (capybara). The fossil species inhabited Buenos...
the domestic guinea pig, wild cavies, and the largest living rodent, the capybara. They are found across South America in open areas from moist savanna to...
cavies) contains two species of South American rock cavies, related to capybaras and guinea pigs. They are found in semiarid regions of northeast Brazil...
the only known capybara of the genus Hydrochoerus found in North America. It was closely related to the modern Greater and LesserCapybara. The holotype...
guinea pig or domestic cavy, which appears to be a hybrid that includes lesser genetic contributions from other Cavia species. Peruvian wild guinea pigs...
8–16 kg (18–35 lb). Unlike most other caviids, such as guinea pigs and capybaras, the anal glands of the mara are between the anus and the base of the...
living members of the family Caviidae with the exception of the maras, capybaras, and Kerodon. The subfamily traditionally contained the guinea pig or...
genera, Hydrochoerus, the capybaras, and Kerodon, the rock cavies. In addition, a number of extinct genera related to capybaras should also be placed in...
have recently been placed in a new subfamily Hydrochoerinae, with the capybaras, and with the closely related rainforest-dwelling acrobatic cavy. Rock...
one of the largest rodents in the world after the two species each of capybaras and beavers, and the large species of porcupines, reaching about 45 cm...
third-largest in the world, both following the South American capybara and lessercapybara. The European species is slightly larger on average but the American...
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