MammalBase - Accepted taxon: Lontra canadensis

Accepted taxon: Lontra canadensis
Taxon:	Lontra canadensis
Rank:	Species
Higher Classification:	CARNIVORA \| CANIFORMIA \| Mustelidae \| Lutrinae \| Lontra
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 Lontra canadensis diet.
CF (Crude Fibre) 2, ASH (Ash contents) 15, NFE (Nitrogen-Free-Extract) 11, CP (Crude Protein) 62, EE (Ether Extract) 10. 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 Lontra canadensis.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Osteichthyes	WHOLE	40.00	Damuth, J…
Anura	WHOLE	30.00	Damuth, J…
Astacoidea	WHOLE	20.00	Damuth, J…
Arthropoda	WHOLE	10.00	Damuth, J…

^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 Lontra canadensis.
Trait	Selected Value	All Value(s)	Reference(s)
Locomotion: Eisenberg 1981	Semiaquatic	Aquatic, Semiaquatic	– John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554, 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
Dietary category: Miljutin 2009	Animalivore	Animalivore, Frugivore	– A. R. Friscia, B. Van Valkenburgh, A. R. Biknevicius, 2007, 'An ecomorphological analysis of extant small carnivorans', Journal of Zoology, vol. 272, no. 1, pp. 82-100, John L. Gittleman, 1985, 'Carnivore body size: Ecological and taxonomic correlates', Oecologia, vol. 67, no. 4, pp. 540-554
Dietary category: Eisenberg 1981	Carnivore	Carnivore, Piscivore and Squid-Eater	– 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 Lontra canadensis.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
Body Mass (BM)	nan	g	12	12	-	-	-	9,002.08	-	-	Engelman,…
Body Mass (BM)	nan	g	-	-	-	-	3,000	-	14,000	-	Freudenth…
Head-Body Length (HBL)	nan	mm	-	-	-	-	-	690.75	-	-	Engelman,…
Occipital condyle width (OCW)	nan	mm	12	12	-	-	-	32.29	-	-	Engelman,…

Table 4. List of other Measurements ^b. for Lontra canadensis.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
brainmass	nan	g	-	-	-	-	-	51	-	-	Engelman,…
skull_length	nan	mm	-	-	-	-	-	114	-	-	Engelman,…
femur circumference	nan	mm	-	-	-	-	-	24	-	-	Nelson, A…
humerus circumference	nan	mm	-	-	-	-	-	26	-	-	Nelson, A…
humerus diameter	nan	mm	-	-	-	-	-	7	-	-	Nelson, A…

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

Table 5. List of Data Sources for Lontra canadensis.
Taxon	Reference	Match	Status
Lontra canadensis	Samuels,J. X., 2008, Skeletal indicators of locomotor adaptations in living and extinct rodents, Journal of Morphology	1: Exact Taxon match	Verified - Accepted
Lutra canadensis	Gittleman,J. L., 1985, Carnivore body size: ecological and taxonomic correlates, Oecologia	52: Genus, Species = Master subfamily genus, species	Verified - Accepted
Lontra canadensis	Friscia,AR, 2006, An ecomorphological analysis of extant small carnivorans, Journal of zoology	1: Exact Taxon match	Verified - Accepted
Lontra canadensis	Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities.	1: Exact Taxon match	Verified - Accepted
Lutra canadensis	Reid,F., 2006, Peterson field guide to mammals of North America,	52: Genus, Species = Master subfamily genus, species	Verified - Accepted
Lontra canadensis	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.	1: Exact Taxon match	Verified - Accepted
Lontra canadensis	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.	1: Exact Taxon match	Verified - Accepted
Lontra canadensis	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
Lontra canadensis	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.	1: Exact Taxon match	Verified - Accepted
Lontra canadensis	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

Citation for this page: [The MammalBase community 2026. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Lontra canadensis , Accessed 30th April 2026 at https://mammalbase.net/me/14760]