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On the Relationships of Postcanine Tooth Size with Dietary Quality and Brain Volume in Primates : Implications for Hominin Evolution
Joint Authors
Palmqvist, Paul
Jiménez-Arenas, Juan Manuel
Aledo, Juan Carlos
Pérez-Claros, Juan Antonio
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-30
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Brain volume and cheek-tooth size have traditionally been considered as two traits that show opposite evolutionary trends during the evolution of Homo.
As a result, differences in encephalization and molarization among hominins tend to be interpreted in paleobiological grounds, because both traits were presumably linked to the dietary quality of extinct species.
Here we show that there is an essential difference between the genus Homo and the living primate species, because postcanine tooth size and brain volume are related to negative allometry in primates and show an inverse relationship in Homo.
However, when size effects are removed, the negative relationship between encephalization and molarization holds only for platyrrhines and the genus Homo.
In addition, there is no general trend for the relationship between postcanine tooth size and dietary quality among the living primates.
If size and phylogeny effects are both removed, this relationship vanishes in many taxonomic groups.
As a result, the suggestion that the presence of well-developed postcanine teeth in extinct hominins should be indicative of a poor-quality diet cannot be generalized to all extant and extinct primates.
American Psychological Association (APA)
Jiménez-Arenas, Juan Manuel& Pérez-Claros, Juan Antonio& Aledo, Juan Carlos& Palmqvist, Paul. 2014. On the Relationships of Postcanine Tooth Size with Dietary Quality and Brain Volume in Primates : Implications for Hominin Evolution. BioMed Research International،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-469596
Modern Language Association (MLA)
Jiménez-Arenas, Juan Manuel…[et al.]. On the Relationships of Postcanine Tooth Size with Dietary Quality and Brain Volume in Primates : Implications for Hominin Evolution. BioMed Research International No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-469596
American Medical Association (AMA)
Jiménez-Arenas, Juan Manuel& Pérez-Claros, Juan Antonio& Aledo, Juan Carlos& Palmqvist, Paul. On the Relationships of Postcanine Tooth Size with Dietary Quality and Brain Volume in Primates : Implications for Hominin Evolution. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-469596
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-469596