Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/30561
Title: Convergence and remarkably consistent constraint in the evolution of carnivore skull shape
Contributor(s): Wroe, Stephen  (author)orcid ; Milne, Nicholas (author)
Publication Date: 2007-05
Early Online Version: 2007-04-24
Open Access: Yes
DOI: 10.1111/j.1558-5646.2007.00101.xOpen Access Link
Handle Link: https://hdl.handle.net/1959.11/30561
Abstract: Phenotypic similarities between distantly related marsupials and placentals are commonly presented as examples of convergence and support for the role of adaptive evolution in shaping morphological and ecological diversity. Here we compare skull shape in a wide range of carnivoran placentals (Carnivora) and nonherbivorous marsupials using a three-dimensional (3-D) geometric morphometric approach. Morphological and ecological diversity among extant carnivorans is considerably greater than is evident in the marsupial order Dasyuromorphia with which they have most commonly been compared. To examine convergence across a wider, but broadly comparable range of feeding ecologies, a dataset inclusive of nondasyuromorphian marsupials and extinct taxa representing morphotypes no longer present was assembled. We found support for the adaptive paradigm, with correlations between morphology, feeding behavior, and bite force, although skull shape better predicted feeding ecology in the phylogenetically diverse marsupial sample than in carnivorans. However, we also show that remarkably consistent but differing constraints have influenced the evolution of cranial shape in both groups. These differences between carnivorans and marsupials, which correlate with brain size and bite force, are maintained across the full gamut of morphologies and feeding categories, from small insectivores and omnivores to large meat-specialists.
Publication Type: Journal Article
Source of Publication: Evolution, 61(5), p. 1251-1260
Publisher: John Wiley & Sons Ltd
Place of Publication: United Kingdom
ISSN: 1558-5646
0014-3820
Fields of Research (FoR) 2008: 060303 Biological Adaptation
040308 Palaeontology (incl. Palynology)
Socio-Economic Objective (SEO) 2008: 970104 Expanding Knowledge in the Earth Sciences
890299 Computer Software and Services not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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