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Higher masseter muscle mass in grazing than in browsing ruminants

Marcus Clauss UGent, Reinold R Hofmann, W Jürgen Streich, Joerns Fickel and Jürgen Hummel (2008) OECOLOGIA. 157(3). p.377-385
abstract
Using cranioskeletal measurements, several studies have generated evidence that grazing ruminants have a more pronounced mastication apparatus, in terms of muscle insertion areas and protuberances, than browsing ruminants, with the resulting hypothesis that grazers should have larger, heavier chewing muscles than browsers. However, the only investigation of this so far [Axmacher and Hofmann (J Zool 215:463-473, 1988)] did not find differences between ruminant feeding types in the masseter muscle mass of 22 species. Here, we expand the dataset to 48 ruminant species. Regardless of phylogenetic control in the statistical treatment, there was a significant positive correlation of body mass and masseter mass, and also a significant association between percent grass in the natural diet and masseter mass. The results support the concept that ruminant species that ingest more grass have relatively larger masseter muscles, possibly indicating an increased requirement to overcome the resistance of grass forage. The comparative chewing resistance of different forage classes may represent a rewarding field of ecophysiological research.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
phylogeny, masseter, grazer, browser, morphology, RYEGRASS LOLIUM-PERENNE, PHYLOGENETIC ANALYSIS, PARTICLE BREAKDOWN, AFRICAN RUMINANTS, DIGESTIVE-SYSTEM, NATIONAL-PARK, ADAPTATION, EVOLUTION, DIETS, DEER
journal title
OECOLOGIA
Oecologia
volume
157
issue
3
pages
377 - 385
Web of Science type
Article
Web of Science id
000258285300002
JCR category
ECOLOGY
JCR impact factor
3.008 (2008)
JCR rank
33/124 (2008)
JCR quartile
2 (2008)
ISSN
0029-8549
DOI
10.1007/s00442-008-1093-z
language
English
UGent publication?
no
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
684786
handle
http://hdl.handle.net/1854/LU-684786
date created
2009-06-09 11:15:09
date last changed
2009-09-22 12:36:23
@article{684786,
  abstract     = {Using cranioskeletal measurements, several studies have generated evidence that grazing ruminants have a more pronounced mastication apparatus, in terms of muscle insertion areas and protuberances, than browsing ruminants, with the resulting hypothesis that grazers should have larger, heavier chewing muscles than browsers. However, the only investigation of this so far [Axmacher and Hofmann (J Zool 215:463-473, 1988)] did not find differences between ruminant feeding types in the masseter muscle mass of 22 species. Here, we expand the dataset to 48 ruminant species. Regardless of phylogenetic control in the statistical treatment, there was a significant positive correlation of body mass and masseter mass, and also a significant association between percent grass in the natural diet and masseter mass. The results support the concept that ruminant species that ingest more grass have relatively larger masseter muscles, possibly indicating an increased requirement to overcome the resistance of grass forage. The comparative chewing resistance of different forage classes may represent a rewarding field of ecophysiological research.},
  author       = {Clauss, Marcus and Hofmann, Reinold R and Streich, W J{\"u}rgen and Fickel, Joerns and Hummel, J{\"u}rgen},
  issn         = {0029-8549},
  journal      = {OECOLOGIA},
  keyword      = {phylogeny,masseter,grazer,browser,morphology,RYEGRASS LOLIUM-PERENNE,PHYLOGENETIC ANALYSIS,PARTICLE BREAKDOWN,AFRICAN RUMINANTS,DIGESTIVE-SYSTEM,NATIONAL-PARK,ADAPTATION,EVOLUTION,DIETS,DEER},
  language     = {eng},
  number       = {3},
  pages        = {377--385},
  title        = {Higher masseter muscle mass in grazing than in browsing ruminants},
  url          = {http://dx.doi.org/10.1007/s00442-008-1093-z},
  volume       = {157},
  year         = {2008},
}

Chicago
Clauss, Marcus, Reinold R Hofmann, W Jürgen Streich, Joerns Fickel, and Jürgen Hummel. 2008. “Higher Masseter Muscle Mass in Grazing Than in Browsing Ruminants.” Oecologia 157 (3): 377–385.
APA
Clauss, M., Hofmann, R. R., Streich, W. J., Fickel, J., & Hummel, J. (2008). Higher masseter muscle mass in grazing than in browsing ruminants. OECOLOGIA, 157(3), 377–385.
Vancouver
1.
Clauss M, Hofmann RR, Streich WJ, Fickel J, Hummel J. Higher masseter muscle mass in grazing than in browsing ruminants. OECOLOGIA. 2008;157(3):377–85.
MLA
Clauss, Marcus, Reinold R Hofmann, W Jürgen Streich, et al. “Higher Masseter Muscle Mass in Grazing Than in Browsing Ruminants.” OECOLOGIA 157.3 (2008): 377–385. Print.