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Title:
Rapid large-scale evolutionary divergence in morphology and performance associated with exploitation of a different dietary resource
Authors:
Herrel, Anthony; Huyghe, Katleen; Vanhooydonck, Bieke; Backeljau, Thierry; Breugelmans, Karin; Grbac, Irena; Van Damme, Raoul; Irschick, Duncan J.
Affiliation:
AA(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AB(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AC(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AD(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AE(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AF(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AG(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003), AH(Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium; Department of Zoology, Croatian Natural History Museum, Demetrova 1, HR-1000, Zagreb, Croatia; Department of Biology and Organismic Evolutionary Program, University of Massachusetts at Amherst, 221 Morrill Science Center, Amherst, MA 01003)
Publication:
Proceedings of the National Academy of Sciences, Volume 105, Issue 12, 2008, pp.4792-4795
Publication Date:
03/2008
Category:
Biological Sciences:Evolution
Origin:
CROSSREF; PNAS
Keywords:
bite force, diet, evolution, gut structure
DOI:
10.1073/pnas.0711998105
Bibliographic Code:
2008PNAS..105.4792H

Abstract

Although rapid adaptive changes in morphology on ecological time scales are now well documented in natural populations, the effects of such changes on whole-organism performance capacity and the consequences on ecological dynamics at the population level are often unclear. Here we show how lizards have rapidly evolved differences in head morphology, bite strength, and digestive tract structure after experimental introduction into a novel environment. Despite the short time scale (≈36 years) since this introduction, these changes in morphology and performance parallel those typically documented among species and even families of lizards in both the type and extent of their specialization. Moreover, these changes have occurred side-by-side with dramatic changes in population density and social structure, providing a compelling example of how the invasion of a novel habitat can evolutionarily drive multiple aspects of the phenotype.
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