دورية أكاديمية
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Dietary specializations and diversity in feeding ecology of the earliest stem mammals.

التفاصيل البيبلوغرافية
العنوان: Dietary specializations and diversity in feeding ecology of the earliest stem mammals.
المؤلفون: Gill PG; School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK., Purnell MA; Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK., Crumpton N; 1] School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK [2] Natural History Museum, Cromwell Road, London SW7 5BD, UK (N.C.); Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, UK (N.J.G.)., Brown KR; Department of Archaeology and Anthropology, University of Bristol, Woodland Road, Bristol BS8 1UU, UK., Gostling NJ; 1] School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK [2] Natural History Museum, Cromwell Road, London SW7 5BD, UK (N.C.); Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton SO14 3ZH, UK (N.J.G.)., Stampanoni M; 1] Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland [2] Institute for Biomedical Engineering, University and ETH Zürich, Gloriastrasse 35, CH-8092 Zürich, Switzerland., Rayfield EJ; School of Earth Sciences, University of Bristol, Life Sciences Building, 24 Tyndall Avenue, Bristol BS8 1TQ, UK.
المصدر: Nature [Nature] 2014 Aug 21; Vol. 512 (7514), pp. 303-5.
نوع المنشور: Historical Article; Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 0410462 Publication Model: Print Cited Medium: Internet ISSN: 1476-4687 (Electronic) Linking ISSN: 00280836 NLM ISO Abbreviation: Nature Subsets: MEDLINE
أسماء مطبوعة: Publication: Basingstoke : Nature Publishing Group
Original Publication: London, Macmillan Journals ltd.
مواضيع طبية MeSH: Feeding Behavior* , Fossils*, Diet/*history , Jaw/*anatomy & histology , Mammals/*anatomy & histology , Mammals/*physiology , Tooth/*anatomy & histology, Adaptation, Physiological ; Animals ; Chiroptera/anatomy & histology ; Chiroptera/physiology ; Diet/veterinary ; History, Ancient ; Jaw/physiology ; Tomography, X-Ray ; Tooth/physiology
مستخلص: The origin and radiation of mammals are key events in the history of life, with fossils placing the origin at 220 million years ago, in the Late Triassic period. The earliest mammals, representing the first 50 million years of their evolution and including the most basal taxa, are widely considered to be generalized insectivores. This implies that the first phase of the mammalian radiation--associated with the appearance in the fossil record of important innovations such as heterodont dentition, diphyodonty and the dentary-squamosal jaw joint--was decoupled from ecomorphological diversification. Finds of exceptionally complete specimens of later Mesozoic mammals have revealed greater ecomorphological diversity than previously suspected, including adaptations for swimming, burrowing, digging and even gliding, but such well-preserved fossils of earlier mammals do not exist, and robust analysis of their ecomorphological diversity has previously been lacking. Here we present the results of an integrated analysis, using synchrotron X-ray tomography and analyses of biomechanics, finite element models and tooth microwear textures. We find significant differences in function and dietary ecology between two of the earliest mammaliaform taxa, Morganucodon and Kuehneotherium--taxa that are central to the debate on mammalian evolution. Morganucodon possessed comparatively more forceful and robust jaws and consumed 'harder' prey, comparable to extant small-bodied mammals that eat considerable amounts of coleopterans. Kuehneotherium ingested a diet comparable to extant mixed feeders and specialists on 'soft' prey such as lepidopterans. Our results reveal previously hidden trophic specialization at the base of the mammalian radiation; hence even the earliest mammaliaforms were beginning to diversify--morphologically, functionally and ecologically. In contrast to the prevailing view, this pattern suggests that lineage splitting during the earliest stages of mammalian evolution was associated with ecomorphological specialization and niche partitioning.
References: Proc Biol Sci. 2012 Sep 7;279(1742):3491-500. (PMID: 22628470)
Nature. 2012 Mar 14;483(7390):457-60. (PMID: 22419156)
Science. 2006 Feb 24;311(5764):1123-7. (PMID: 16497926)
J Exp Biol. 2003 Jul;206(Pt 13):2117-23. (PMID: 12771161)
Proc Biol Sci. 2006 Jan 7;273(1582):101-7. (PMID: 16519241)
Science. 1967 Feb 24;155(3765):1006-9. (PMID: 6017978)
Zoology (Jena). 2006;109(1):66-74. (PMID: 16377164)
J Zool (1987). 2013 Dec;291(4):249-257. (PMID: 25620853)
J Hum Evol. 2006 Oct;51(4):339-49. (PMID: 16908052)
PLoS One. 2013 May 28;8(5):e65295. (PMID: 23724135)
Nature. 2007 Dec 13;450(7172):1011-9. (PMID: 18075580)
Arch Oral Biol. 1974 Apr;19(4):327-8. (PMID: 12692916)
Nature. 2006 Dec 14;444(7121):889-93. (PMID: 17167478)
J Theor Biol. 2009 Jan 7;256(1):96-103. (PMID: 18834892)
Nature. 2005 Aug 4;436(7051):693-5. (PMID: 16079844)
Science. 2013 Feb 8;339(6120):662-7. (PMID: 23393258)
J R Soc Interface. 2012 Sep 7;9(74):2225-33. (PMID: 22491979)
J Exp Biol. 2010 Jun 1;213(11):1844-51. (PMID: 20472771)
Anat Rec A Discov Mol Cell Evol Biol. 2005 Apr;283(2):300-9. (PMID: 15747352)
Proc Biol Sci. 2002 Jun 22;269(1497):1271-8. (PMID: 12065044)
PLoS One. 2008 Apr 30;3(4):e2044. (PMID: 18446200)
Proc Biol Sci. 2013 Oct 02;280(1771):20132110. (PMID: 24089340)
Proc Natl Acad Sci U S A. 2007 Oct 9;104(41):16010-5. (PMID: 17911253)
Trends Ecol Evol. 1999 Mar;14(3):113-118. (PMID: 10322512)
Anat Rec (Hoboken). 2011 Apr;294(4):610-20. (PMID: 21370496)
J Anim Ecol. 2006 Jul;75(4):967-77. (PMID: 17009760)
PLoS One. 2011 Apr 29;6(4):e19171. (PMID: 21559475)
Science. 2011 Oct 28;334(6055):521-4. (PMID: 21940861)
J Anat. 2011 Dec;219(6):696-709. (PMID: 21974720)
Anat Rec A Discov Mol Cell Evol Biol. 2005 Apr;283(2):319-30. (PMID: 15747350)
J Hum Evol. 2012 Jul;63(1):85-98. (PMID: 22705031)
تواريخ الأحداث: Date Created: 20140822 Date Completed: 20140915 Latest Revision: 20211021
رمز التحديث: 20231215
DOI: 10.1038/nature13622
PMID: 25143112
قاعدة البيانات: MEDLINE
الوصف
تدمد:1476-4687
DOI:10.1038/nature13622