MammalBase - Accepted taxon: Lycalopex gymnocercus

Accepted taxon: Lycalopex gymnocercus
Taxon:	Lycalopex gymnocercus
Rank:	Species
Higher Classification:	CARNIVORA \| CANIFORMIA \| Canidae \| Lycalopex
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 Lycalopex gymnocercus diet.
CF (Crude Fibre) 4, ASH (Ash contents) 7, NFE (Nitrogen-Free-Extract) 15, CP (Crude Protein) 40, EE (Ether Extract) 14. 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 Lycalopex gymnocercus.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Mammalia	WHOLE	22.50	Damuth, J…
Aves	WHOLE	14.86	Damuth, J…
Magnoliopsida	FRUIT	12.92	Damuth, J…
Rodentia	WHOLE	12.22	Damuth, J…
Insecta	WHOLE	11.67	Damuth, J…
Vertebrata	CARRION	7.50	Damuth, J…
Magnoliopsida	SHOOT	5.56	Damuth, J…
Leporidae	WHOLE	4.17	Grzimek,B…
Anura	WHOLE	3.47	Grzimek,B…
Squamata	WHOLE	2.78	Grzimek,B…
Reptilia	WHOLE	1.67	Damuth, J…
Saccharum officinarum	STEM	0.69	Grzimek,B…

^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 Lycalopex gymnocercus.
Trait	Selected Value	All Value(s)	Reference(s)
Locomotion: Eisenberg 1981	Terrestrial	Terrestrial	– John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554, Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition
Dietary category: Eisenberg 1981	Carnivore	Carnivore, Frugivore-omnivore	– John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554, Juhn, M., Balisi, M., Doughty, E., Friscia, A., Howenstine, A., Jacquemetton, C., Marcot, J., Nugen, S., Van Valkenburgh, B. 2024. Cenozoic climate change and the evolution of North American mammalian predator ecomorphology. Paleobiology. None(None), pp.1-10. Available at: 10.1017/pab.2024.27., Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition
Dietary category: Miljutin 2009	Animalivore	Animalivore, Frugivore	– John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554, Juhn, M., Balisi, M., Doughty, E., Friscia, A., Howenstine, A., Jacquemetton, C., Marcot, J., Nugen, S., Van Valkenburgh, B. 2024. Cenozoic climate change and the evolution of North American mammalian predator ecomorphology. Paleobiology. None(None), pp.1-10. Available at: 10.1017/pab.2024.27., Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition
Temporal habits	nocturnal	nocturnal	– John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554

Table 3. List of Standard Measurements for Lycalopex gymnocercus.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
Body Mass (BM)	nan	g	-	-	-	-	-	4,543	-	-	Juhn, M.,…
Body Mass (BM)	Brazil	g	-	-	-	-	-	4,400	-	-	Paglia,A.…
Body Mass (BM)	nan	g	-	-	-	-	3,000	-	8,500	-	Freudenth…

Table 4. List of other Measurements ^b. for Lycalopex gymnocercus.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
femur circumference	nan	mm	-	-	-	-	-	27	-	-	Nelson, A…
humerus circumference	nan	mm	-	-	-	-	-	26	-	-	Nelson, A…
relative blade length (RBL)	nan	unitless	-	-	-	-	-	1	-	-	Juhn, M.S…

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

Table 5. List of Data Sources for Lycalopex gymnocercus.
Taxon	Reference	Match	Status
Dusicyon gymnocercus	Gittleman,J. L., 1985, Carnivore body size: ecological and taxonomic correlates, Oecologia	50: Synonym	Verified - Accepted
Lycalopex gymnocercus	Paglia,A. P., 2012, Lista Anotada dos MamÃƒÂferos do Brasil 2Ã‚Âª EdiÃƒÂ§ÃƒÂ£o Annotated Checklist of Brazilian Mammals,	1: Exact Taxon match	Verified - Accepted
Psedalopex gymnocercus	Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities.	150: Genus synonym, same species epithet	Verified - Accepted
Pseudalopex gymnocercus	Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities.	150: Genus synonym, same species epithet	Verified - Accepted
Pseudalopex gymnocercus	Grzimek,B., 2003, Grzimek's Animal Life Encyclopedia: Mammals I-V,	150: Genus synonym, same species epithet	Verified - Accepted
Pseudalopex gymnocercus	Law, C.J., Blackwell, E.A., Curtis, A.A., Dickinson, E., Hartstone‐Rose, A. and Santana, S.E., 2022. Decoupled evolution of the cranium and mandible in carnivoran mammals. Evolution.	150: Genus synonym, same species epithet	Verified - Accepted
Lycalopex gymnocercus	DeMers, A.C., 2023. Functional Significance of the Mandible, Tooth Roots, and Tooth Crowns, and their Implications for Fossil Dietary Inference (Doctoral dissertation, The Ohio State University).	1: Exact Taxon match	Verified - Accepted
Pseudalopex gymnocercus	Nelson, A., Engelman, R.K. and Croft, D.A., 2023. How to weigh a fossil mammal? South American notoungulates as a case study for estimating body mass in extinct clades. Journal of Mammalian Evolution, 30(3), pp.773-809.	150: Genus synonym, same species epithet	Verified - Accepted
Lycalopex gymnocercus	Freudenthal, M. and Martín-Suárez, E., 2013. Estimating body mass of fossil rodents. Scripta Geologica, 145, pp.1-513.	1: Exact Taxon match	Verified - Accepted
Pseudalopex gymnocercus	Juhn, M.S., Balisi, M.A., Doughty, E.M., Friscia, A.R., Howenstine, A.O., Jacquemetton, C., Marcot, J., Nugen, S. and Van Valkenburgh, B., 2024. Cenozoic climate change and the evolution of North American mammalian predator ecomorphology. Paleobiology, pp.1-10.	150: Genus synonym, same species epithet	Verified - Accepted
Lycalopex gymnocercus	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.	1: Exact Taxon match	Verified - Accepted

Citation for this page: [The MammalBase community 2026. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Lycalopex gymnocercus , Accessed 17th April 2026 at https://mammalbase.net/me/14514]