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]
| 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]
| Trait | Selected Value | All Value(s) | Reference(s) |
|---|---|---|---|
| Locomotion: Eisenberg 1981 | Semiaquatic | Aquatic, Semiaquatic | – Arends, A. and McNab, B.K., 2001. The comparative energetics of ‘caviomorph’rodents. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 130(1), pp.105-122., Ferreira, J., Rinderknecht, A., de Moura Bubadué, J., Gasparetto, L., Dozo, M., Sánchez-Villagra, M., Kerber, L. 2024. Unveiling the neuroanatomy of Josephoartigasia monesi and the evolution of encephalization in caviomorph rodents. Brain Structure and Function. None(None), pp.None. Available at: 10.1007/s00429-024-02762-y., 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 2nd Edition |
| Dietary category: Eisenberg 1981 | Herbivore-Browser | Herbivore-Browser, Herbivore-Grazer | – Arends, A. and McNab, B.K., 2001. The comparative energetics of ‘caviomorph’rodents. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 130(1), pp.105-122., Ferreira, J., Rinderknecht, A., de Moura Bubadué, J., Gasparetto, L., Dozo, M., Sánchez-Villagra, M., Kerber, L. 2024. Unveiling the neuroanatomy of Josephoartigasia monesi and the evolution of encephalization in caviomorph rodents. Brain Structure and Function. None(None), pp.None. Available at: 10.1007/s00429-024-02762-y., 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 2nd Edition |
| Dietary category: Miljutin 2009 | Herbivore | Herbivore | – Arends, A. and McNab, B.K., 2001. The comparative energetics of ‘caviomorph’rodents. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 130(1), pp.105-122., Ferreira, J., Rinderknecht, A., de Moura Bubadué, J., Gasparetto, L., Dozo, M., Sánchez-Villagra, M., Kerber, L. 2024. Unveiling the neuroanatomy of Josephoartigasia monesi and the evolution of encephalization in caviomorph rodents. Brain Structure and Function. None(None), pp.None. Available at: 10.1007/s00429-024-02762-y., 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 2nd Edition |
| Measurement | Location | Unit | n Total | n Unknown | n Female | n Male | Min | Mean | Max | SD | Reference(s) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Mass (BM) | nan | g | - | - | - | - | - | 71,450 | - | - | Ferreira,… |
| Body Mass (BM) | New World | g | - | - | - | - | - | 26,385 | - | - | Arends, A… |
| Body Mass (BM) | nan | g | - | - | - | - | 20,000 | - | 91,000 | - | Freudenth… |
| 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.… |
| Head-Body Length (HBL) | nan | mm | - | - | - | - | - | 1,212 | - | - | Engelman,… |
| Occipital condyle width (OCW) | nan | mm | 4 | 4 | - | - | - | 35.33 | - | - | Engelman,… |
| Measurement | Location | Unit | n Total | n Unknown | n Female | n Male | Min | Mean | Max | SD | Reference(s) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| brainmass | nan | g | - | - | - | - | - | 75 | - | - | Engelman,… |
| skull_length | nan | mm | - | - | - | - | - | 223 | - | - | Engelman,… |
| BMR (kJ/h) | nan | kJ/h | - | - | - | - | - | 132 | - | - | McNab, B.… |
| femur circumference | nan | mm | - | - | - | - | - | 59 | - | - | Nelson, A… |
| femur diameter | nan | mm | - | - | - | - | - | 21 | - | - | Nelson, A… |
| humerus circumference | nan | mm | - | - | - | - | - | 49 | - | - | Nelson, A… |
| humerus diameter | nan | mm | - | - | - | - | - | 13 | - | - | Nelson, A… |
| BCL, basicranial length | nan | mm | 1 | 1 | - | - | - | 49 | - | - | Ferreira,… |
| DL, diastema length | nan | mm | 1 | 1 | - | - | - | 70 | - | - | Ferreira,… |
| FW, frontal width | nan | mm | 1 | 1 | - | - | - | 77 | - | - | Ferreira,… |
| IW, incisor width | nan | mm | 1 | 1 | - | - | - | 30 | - | - | Ferreira,… |
| RL, rostral length | nan | mm | 1 | 1 | - | - | - | 162 | - | - | Ferreira,… |
| skull, condyle-basal length of the skull | nan | mm | 1 | 1 | - | - | - | 232 | - | - | Ferreira,… |
| TL, total length of skull | nan | mm | 1 | 1 | - | - | - | 253 | - | - | Ferreira,… |
| Upper T, Upper incisor transverse diameter | nan | mm | 1 | 1 | - | - | - | 14 | - | - | Ferreira,… |
| UTRW, Upper tooth row length | nan | mm | 1 | 1 | - | - | - | 83 | - | - | Ferreira,… |
| ZL, zygomatic arc length | nan | mm | 1 | 1 | - | - | - | 128 | - | - | Ferreira,… |
b. other Measurements. Source Measurements which are not listed on or mapped with the Standard Traits..
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]