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MammalBase - Accepted taxon: Hydrochoeris hydrochaeris

Accepted taxon: Hydrochoeris hydrochaeris


Accepted taxon: Hydrochoeris hydrochaeris
Taxon: Hydrochoeris hydrochaeris
Rank: Species
Higher Classification: RODENTIA | HYSTRICOMORPHA | HYSTRICOGNATHI | Caviidae | Hydrochoerinae | Hydrochoeris
Reference: Wilson, Don E., and DeeAnn M. Reeder, eds. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), JHU Press, 2005.

Fig.1 - Ternary plot of the proximate analysis for the Hydrochoeris hydrochaeris diet.
CF (Crude Fibre) 24, ASH (Ash contents) 11, NFE (Nitrogen-Free-Extract) 49, CP (Crude Protein) 14, EE (Ether Extract) 2. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]


Table 1. List of Diet Items for Hydrochoeris hydrochaeris.
TSN Complete name Part Ratio a. Reference(s)
Magnoliopsida SHOOT 40.44 Damuth, J…
Poaceae STEM 40.00 Damuth, J…
Animalia FECES 8.89 Grzimek,B…
Poaceae SEED 5.33 Nowak,R. …
Cucumis FRUIT 3.56 Nowak,R. …
Cucurbitaceae FRUIT 1.78 Nowak,R. …

a. Standardized values. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]


Table 2. List of Standard Traits for Hydrochoeris hydrochaeris.
Trait Selected Value All Value(s) Reference(s)
Locomotion: Eisenberg 1981 Semiaquatic Aquatic, Semiaquatic – Alexis Arends, Brian K McNab, 2001, 'The comparative energetics of ‘caviomorph’ rodents', Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 130, no. 1, pp. 105-122, Joshua X. Samuels, Blaire Van Valkenburgh, 2008, 'Skeletal indicators of locomotor adaptations in living and extinct rodents', Journal of Morphology, vol. 269, no. 11, pp. 1387-1411, Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals,
Dietary category: Eisenberg 1981 Herbivore-Grazer Herbivore-Browser, Herbivore-Grazer – Alexis Arends, Brian K McNab, 2001, 'The comparative energetics of ‘caviomorph’ rodents', Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 130, no. 1, pp. 105-122, John G. Robinson, Kent H. Redford, 1986, 'Body Size, Diet, and Population Density of Neotropical Forest Mammals', The American Naturalist, vol. 128, no. 5, p. 665, Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals,
Dietary category: Miljutin 2009 Herbivore Herbivore – Alexis Arends, Brian K McNab, 2001, 'The comparative energetics of ‘caviomorph’ rodents', Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 130, no. 1, pp. 105-122, JOSHUA X. SAMUELS, 2009, 'Cranial morphology and dietary habits of rodents', Zoological Journal of the Linnean Society, vol. 156, no. 4, pp. 864-888, John G. Robinson, Kent H. Redford, 1986, 'Body Size, Diet, and Population Density of Neotropical Forest Mammals', The American Naturalist, vol. 128, no. 5, p. 665, Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals,

Table 3. List of Standard Measurements for Hydrochoeris hydrochaeris.
Measurement Location Unit n Total n Unknown n Female n Male Min Mean Max SD Reference(s)
Body Mass (BM) nan g 4 4 - - - 34,360.81 - - Engelman,…
Body Mass (BM) nan g 4 4 - - - 34,360.81 - - Engelman,…
Body Mass (BM) nan g - - - - - 50,000 - - Lundgren,…
Body Mass (BM) Brazil g - - - - 35,000 50,000 65,000 - Paglia,A.…
Body Mass (BM) nan g 4 4 - - - 34,360.81 - - Engelman,…
Body Mass (BM) New World g - - - - - 26,385 - - Alexis Ar…

Table 4. List of other Measurements b. for Hydrochoeris hydrochaeris.
Measurement Location Unit n Total n Unknown n Female n Male Min Mean Max SD Reference(s)

b. other Measurements. Source Measurements which are not listed on or mapped with the Standard Traits..


Table 5. List of Data Sources for Hydrochoeris hydrochaeris.
Taxon Reference Match Status
Hydrochaeris hydrochaeris Robinson,John G., 1986, Body Size, Diet, and Population Density of Neotropical Forest Mammals, The American Naturalist 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochoerus hydrochaeris SAMUELS,J. X., 2009, Cranial morphology and dietary habits of rodents, Zoological Journal of the Linnean Society 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Samuels,J. X., 2008, Skeletal indicators of locomotor adaptations in living and extinct rodents, Journal of Morphology 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochoerus hydrochaeris Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals, 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Arends,A., 2001, The comparative energetics of ‘caviomorph’rodents, Comparative Biochemistry and Physiology-Part A: Molecular & Integrative Physiology 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities. 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Nowak,R. M., 1991, Walker's mammals of the world, 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Grzimek,B., 2003, Grzimek's Animal Life Encyclopedia: Mammals I-V, 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Nowak,R. M., 1991, Walker's mammals of the world, 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochaeris hydrochaeris Herberstein, M.E., McLean, D.J., Lowe, E., Wolff, J.O., Khan, M.K., Smith, K., Allen, A.P., Bulbert, M., Buzatto, B.A., Eldridge, M.D. and Falster, D., 2022. AnimalTraits-a curated animal trait database for body mass, metabolic rate and brain size. Scientific Data, 9(1), p.265. 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochoerus hydrochaeris Engelman, R.K., 2022. Occipital condyle width (OCW) is a highly accurate predictor of body mass in therian mammals. BMC biology, 20(1), p.37. 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochoerus hydrochaeris Lundgren, E.J., Schowanek, S.D., Rowan, J., Middleton, O., Pedersen, R.Ø., Wallach, A.D., Ramp, D., Davis, M., Sandom, C.J. and Svenning, J.C., 2021. Functional traits of the world’s late Quaternary large-bodied avian and mammalian herbivores. Scientific data, 8(1), p.17. 51: Name variant or misspelling of the taxon Verified - Accepted
Hydrochoerus hydrochaeris Rowan, J., Beaudrot, L., Franklin, J., Reed, K.E., Smail, I.E., Zamora, A. and Kamilar, J.M., 2020. Geographically divergent evolutionary and ecological legacies shape mammal biodiversity in the global tropics and subtropics. Proceedings of the National Academy of Sciences, 117(3), pp.1559-1565. 51: Name variant or misspelling of the taxon Verified - Accepted

Citation for this page: [The MammalBase community 2026. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Hydrochoeris hydrochaeris , Accessed 16th April 2026 at https://mammalbase.net/me/9940]