MammalBase - Accepted taxon: Tamiasciurus douglasii

Accepted taxon: Tamiasciurus douglasii
Taxon:	Tamiasciurus douglasii
Rank:	Species
Higher Classification:	RODENTIA \| SCIUROMORPHA \| Sciuridae \| Sciurinae \| Sciurini \| Tamiasciurus
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 Tamiasciurus douglasii diet.
CF (Crude Fibre) 12, ASH (Ash contents) 5, NFE (Nitrogen-Free-Extract) 56, CP (Crude Protein) 19, EE (Ether Extract) 7. 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 Tamiasciurus douglasii.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Magnoliopsida	SEED	32.14	Damuth, J…
Coniferophyta	SEED	25.00	Damuth, J…
Fungi	SHOOT	21.43	Damuth, J…
Magnoliopsida	FRUIT	10.71	Damuth, J…
Magnoliopsida	FLOWER	7.14	Damuth, J…
Pteridophyta	LEAF	3.57	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 Tamiasciurus douglasii.
Trait	Selected Value	All Value(s)	Reference(s)
Locomotion: Eisenberg 1981	Arboreal	Arboreal	Virginia …

Table 3. List of Standard Measurements for Tamiasciurus douglasii.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
Body Mass (BM)	nan	g	-	-	-	-	141	-	312	-	Freudenth…

Table 4. List of other Measurements ^b. for Tamiasciurus douglasii.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
humerus diameter	nan	mm	-	-	-	-	-	3	-	-	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 Tamiasciurus douglasii.
Taxon	Reference	Match	Status
Tamiasciurus douglasii	Hayssen,V., 2008, Patterns of body and tail length and body mass in Sciuridae, Journal of mammalogy	1: Exact Taxon match	Verified - Accepted
Tamiasciurus douglasii	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
Tamiasciurus douglasii	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
Tamiasciurus douglasii	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 2025. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Tamiasciurus douglasii , Accessed 26th October 2025 at https://mammalbase.net/me/6466]