MammalBase - Accepted taxon: Indri indri

Accepted taxon: Indri indri
Taxon:	Indri indri
Rank:	Species
Higher Classification:	PRIMATES \| STREPSIRRHINI \| LEMURIFORMES \| Lemuroidea \| Indridae \| Indri
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 Indri indri diet.
CF (Crude Fibre) 18, ASH (Ash contents) 10, NFE (Nitrogen-Free-Extract) 54, CP (Crude Protein) 13, EE (Ether Extract) 3. 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 Indri indri.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Lauraceae	LEAF	33.33	Grzimek,B…
Magnoliopsida	LEAF	32.14	Grzimek,B…
Magnoliopsida	FLOWER	17.06	Grzimek,B…
Magnoliopsida	FRUIT	12.70	Grzimek,B…
Magnoliopsida	BARK	3.57	Grzimek,B…
0	MINERAL	1.19	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 Indri indri.
Trait	Selected Value	All Value(s)	Reference(s)
Locomotion: Eisenberg 1981	Arboreal	Arboreal	– Christophe Soligo, Robert D. Martin, 2006, 'Adaptive origins of primates revisited', Journal of Human Evolution, vol. 50, no. 4, pp. 414-430
Dietary category: Eisenberg 1981	Herbivore-Browser	Herbivore-Browser	– Jonathan M. Bunn, Doug M. Boyer, Yaron Lipman, Elizabeth M. St. Clair, Jukka Jernvall, Ingrid Daubechies, 2011, 'Comparing Dirichlet normal surface energy of tooth crowns, a new technique of molar shape quantification for dietary inference, with previous methods in isolation and in combination', American Journal of Physical Anthropology, vol. 145, no. 2, pp. 247-261
Dietary category: Miljutin 2009	Herbivore	Herbivore	– Jonathan M. Bunn, Doug M. Boyer, Yaron Lipman, Elizabeth M. St. Clair, Jukka Jernvall, Ingrid Daubechies, 2011, 'Comparing Dirichlet normal surface energy of tooth crowns, a new technique of molar shape quantification for dietary inference, with previous methods in isolation and in combination', American Journal of Physical Anthropology, vol. 145, no. 2, pp. 247-261

Table 3. List of Standard Measurements for Indri indri.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)

Table 4. List of other Measurements ^b. for Indri indri.
Measurement	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
2dm1	-	-	-	-	-	-	43	-	-	Boyer, Do…
3dm2	-	-	-	-	-	-	99	-	-	Boyer, Do…
m2_relief	-	4	4	-	-	1	1	1	0	Boyer, Do…
sdm2	-	-	-	-	-	-	34	-	-	Boyer, Do…
Dirichlet normal energy (DNE)	-	9	9	-	-	-	173	-	-	Bunn, Jon…
orientation patch count rotated (OPCR)	n/a	9	9	-	-	-	56	-	-	Bunn, Jon…
relief index (RFI)	n/a	9	9	-	-	-	0	-	-	Bunn, Jon…
shearing quotient (SQ)	-	9	9	-	-	-	10	-	-	Bunn, Jon…
shearing ratio (SR)	-	9	9	-	-	-	3	-	-	Bunn, Jon…

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

Table 5. List of Data Sources for Indri indri.
Taxon	Reference	Match	Status
Indri indri	Bunn,J. M., 2011, Comparing Dirichlet normal surface energy of tooth crowns, a new technique of molar shape quantification for dietary inference, with previous methods in isolation and in combination, American Journal of Physical Anthropology	1: Exact Taxon match	Verified - Accepted
Indri indri	Soligo,C., 2006, Adaptive origins of primates revisited, Journal of human evolution	1: Exact Taxon match	Verified - Accepted
Indri indri	Boyer, Doug M. Ã¢â‚¬Å“Relief Index of Second Mandibular Molars Is a Correlate of Diet Among Prosimian Primates and Other Euarchontan Mammals.Ã¢â‚¬Â Journal of Human Evolution 55, no. 6 (December 2008): 1118Ã¢â‚¬â€œ1137. doi:10.1016/j.jhevol.2008.08.002.	1: Exact Taxon match	Verified - Accepted
Indri indri	Bunn, Jonathan M., Doug M. Boyer, Yaron Lipman, Elizabeth M. St. Clair, Jukka Jernvall, and Ingrid Daubechies. Ã¢â‚¬Å“Comparing Dirichlet Normal Surface Energy of Tooth Crowns, a New Technique of Molar Shape Quantification for Dietary Inference, with Previous Methods in Isolation and in Combination.Ã¢â‚¬Â American Journal of Physical Anthropology 145, no. 2 (April 5, 2011): 247Ã¢â‚¬â€œ261. doi:10.1002/ajpa.21489.	1: Exact Taxon match	Verified - Accepted
Indri indri	Nowak,R. M., 1991, Walker's mammals of the world,	1: Exact Taxon match	Verified - Accepted
Indri indri	Grzimek,B., 2003, Grzimek's Animal Life Encyclopedia: Mammals I-V,	1: Exact Taxon match	Verified - Accepted
Indri indri	Nowak,R. M., 1991, Walker's mammals of the world,	1: Exact Taxon match	Verified - Accepted
Indri indri	Herberstein, M.E., McLean, D.J., Lowe, E., Wolff, J.O., Khan, M.K., Smith, K., Allen, A.P., Bulbert, M., Buzatto, B.A., Eldridge, M.D. and Falster, D., 2022. AnimalTraits-a curated animal trait database for body mass, metabolic rate and brain size. Scientific Data, 9(1), p.265.	1: Exact Taxon match	Verified - Accepted
Indri indri	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 Indri indri , Accessed 16th April 2026 at https://mammalbase.net/me/5593]