uu.seUppsala universitets publikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A universal scaling relationship between body mass and proximal limb bone dimensions in quadrupedal terrestrial tetrapods
Royal Ontario Museum.
2012 (Engelska)Ingår i: BMC Biology, ISSN 1741-7007, E-ISSN 1741-7007, Vol. 10, s. 60-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background

Body size is intimately related to the physiology and ecology of an organism. Therefore, accurate and consistent body mass estimates are essential for inferring numerous aspects of paleobiology in extinct taxa, and investigating large-scale evolutionary and ecological patterns in the history of life. Scaling relationships between skeletal measurements and body mass in birds and mammals are commonly used to predict body mass in extinct members of these crown clades, but the applicability of these models for predicting mass in more distantly related stem taxa, such as non-avian dinosaurs and non-mammalian synapsids, has been criticized on biomechanical grounds. Here we test the major criticisms of scaling methods for estimating body mass using an extensive dataset of mammalian and non-avian reptilian species derived from individual skeletons with live weights.

Results

Significant differences in the limb scaling of mammals and reptiles are noted in comparisons of limb proportions and limb length to body mass. Remarkably, however, the relationship between proximal (stylopodial) limb bone circumference and body mass is highly conserved in extant terrestrial mammals and reptiles, in spite of their disparate limb postures, gaits, and phylogenetic histories. As a result, we are able to conclusively reject the main criticisms of scaling methods that question the applicability of a universal scaling equation for estimating body mass in distantly related taxa.

Conclusions

The conserved nature of the relationship between stylopodial circumference and body mass suggests that the minimum diaphyseal circumference of the major weight-bearing bones is only weakly influenced by the varied forces exerted on the limbs (that is, compression or torsion) and most strongly related to the mass of the animal. Our results, therefore, provide a much-needed, robust, phylogenetically corrected framework for accurate and consistent estimation of body mass in extinct terrestrial quadrupeds, which is important for a wide range of paleobiological studies (including growth rates, metabolism, and energetics) and meta-analyses of body size evolution.

Ort, förlag, år, upplaga, sidor
BioMed Central, 2012. Vol. 10, s. 60-
Nationell ämneskategori
Evolutionsbiologi Ekologi Zoologi
Forskningsämne
Biologi med inriktning mot evolutionär organismbiologi
Identifikatorer
URN: urn:nbn:se:uu:diva-217208DOI: 10.1186/1741-7007-10-60OAI: oai:DiVA.org:uu-217208DiVA, id: diva2:692520
Tillgänglig från: 2014-01-31 Skapad: 2014-01-31 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

Open Access i DiVA

fulltext(701 kB)112 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 701 kBChecksumma SHA-512
8c3e26e17f04f1c6c462c33cf15a8f976ffe0ce7963d28d27a357c2d3254dc7ffff52d79b9e2b5abf0ac484c9dad6b7a17f5cd6b780a35b508dc88f250ed969c
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltexthttp://www.biomedcentral.com/1741-7007/10/60

Personposter BETA

Campione, Nicolas E.

Sök vidare i DiVA

Av författaren/redaktören
Campione, Nicolas E.
I samma tidskrift
BMC Biology
EvolutionsbiologiEkologiZoologi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 112 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 493 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf