Accepted taxon: Ursus americanus
Accepted taxon: Ursus americanus
Taxon:
Ursus americanus
Rank:
Species
Higher Classification:
CARNIVORA | CANIFORMIA | Ursidae | Ursus
Reference:
Wilson, Don E., and DeeAnn M. Reeder, eds. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), JHU Press, 2005.
0 0.2 0.4 0.6 0.8 1 1 0.8 0.6 0.4 0.2 0 1 0.8 0.6 0.4 0.2 0
CF+ASH NFE CP+EE
Fig.1 - Ternary plot of the proximate analysis for the Ursus americanus diet.Mammalian Biology , pp.1-15.
[DOI]
Table 1. List of Diet Items for Ursus americanus.
TSN Complete name
Part
Ratio a.
Reference(s)
Magnoliopsida SHOOT
16.67
Nowak,R. …
Magnoliopsida STEM
16.67
Nowak,R. …
Magnoliopsida FRUIT
15.96
Damuth, J…
Magnoliopsida SEED
11.55
Damuth, J…
Magnoliopsida ROOT
9.21
Damuth, J…
Insecta WHOLE
6.93
Damuth, J…
Poaceae STEM
3.90
Grzimek,B…
Mammalia WHOLE
3.75
Damuth, J…
Magnoliopsida EXUDATES
2.45
Grzimek,B…
Fagaceae SEED
2.02
Nowak,R. …
Vertebrata EGGS
1.90
Damuth, J…
Insecta LARVAE
1.85
Reid,F., …
Rodentia WHOLE
1.61
Grzimek,B…
Salmonidae WHOLE
1.50
Grzimek,B…
Formicidae WHOLE
1.28
Grzimek,B…
Vertebrata CARRION
1.09
Grzimek,B…
Osteichthyes WHOLE
1.01
Nowak,R. …
Artiodactyla WHOLE
0.64
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 3. List of Standard Measurements for Ursus americanus.
Measurement
Location
Unit
n Total
n Unknown
n Female
n Male
Min
Mean
Max
SD
Reference(s)
Body Mass (BM) nan
g
14
14
-
-
-
109,751.94
-
-
Engelman,…
Body Mass (BM) nan
g
-
-
-
-
39,000
-
409,000
-
Freudenth…
Body Mass (BM) nan
g
-
-
-
-
-
110,500
-
-
Juhn, M.,…
Head-Body Length (HBL) nan
mm
10
10
-
-
-
1,676.1
-
-
Engelman,…
Occipital condyle width (OCW) nan
mm
14
14
-
-
-
54.79
-
-
Engelman,…
b. other Measurements.
Source Measurements which are not listed on or mapped with the Standard Traits. .
Table 5. List of Data Sources for Ursus americanus.
Taxon
Reference
Match
Status
Ursus americanus Gittleman,J. L., 1985, Carnivore body size: ecological and taxonomic correlates, Oecologia 1: Exact Taxon match
Verified - Accepted
Ursus americanus 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
Ursus americanus Evans, Alistair R., Gregory P. Wilson, Mikael Fortelius, and Jukka Jernvall. “High-Level Similarity of Dentitions in Carnivorans and Rodents.†Nature 445, no. 7123 (December 13, 2006): 78–81. doi:10.1038/nature05433. 1: Exact Taxon match
Verified - Accepted
Ursus americanus Reid,F., 2006, Peterson field guide to mammals of North America, 1: Exact Taxon match
Verified - Accepted
Ursus americanus Nowak,R. M., 1991, Walker's mammals of the world, 1: Exact Taxon match
Verified - Accepted
Ursus americanus Grzimek,B., 2003, Grzimek's Animal Life Encyclopedia: Mammals I-V, 1: Exact Taxon match
Verified - Accepted
Ursus americanus Nowak,R. M., 1991, Walker's mammals of the world, 1: Exact Taxon match
Verified - Accepted
Ursus americanus 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
Ursus americanus 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
Ursus americanus 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
Ursus americanus 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. 1: Exact Taxon match
Verified - Accepted
Ursus americanus McNab, B.K., 2008. An analysis of the factors that influence the level and scaling of mammalian BMR. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 151(1), pp.5-28. 1: Exact Taxon match
Verified - Accepted
Ursus americanus 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
Ursus americanus 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
Ursus americanus 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. 1: Exact Taxon match
Verified - Accepted
Citation for this page:
[The MammalBase community 2025. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864
Ursus americanus
, Accessed 8th April 2025 at https://mammalbase.net/me/14646]