Tempo and Pattern of Avian Brain Size Evolution.

Autor:	Ksepka DT; Bruce Museum, Greenwich, CT 06830, USA; Department of Ornithology, American Museum of Natural History, New York, NY 10024, USA; Division of Science and Education, Field Museum of Natural History, Chicago, IL 60605, USA; Department of Paleobiology, Smithsonian Institution, Washington, DC 20013, USA. Electronic address: dksepka@brucemuseum.org., Balanoff AM; Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA., Smith NA; Division of Science and Education, Field Museum of Natural History, Chicago, IL 60605, USA; Campbell Geology Museum, Clemson University, Clemson, SC 29634, USA., Bever GS; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA; Center for Functional Anatomy and Evolution, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA., Bhullar BS; Department of Geology & Geophysics and Peabody Museum of Natural History, Yale University, New Haven, CT 06511, USA., Bourdon E; UMR 7205 Laboratoire Informatique et Systématique, Muséum National d'Histoire Naturelle, 75005 Paris, France., Braun EL; Department of Biology, University of Florida, Gainesville, FL 32611, USA., Burleigh JG; Department of Biology, University of Florida, Gainesville, FL 32611, USA., Clarke JA; The Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, USA., Colbert MW; The Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, USA., Corfield JR; Salisbury University, Salisbury, MD 28101, USA., Degrange FJ; Centro de Investigaciones en Ciencias de la Tierra, UNC, CONICET, Córdoba X5016GCA, Argentina., De Pietri VL; Canterbury Museum, Christchurch 8013, New Zealand., Early CM; Department of Biological Sciences, Ohio University, Athens, OH 45701, USA; Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA., Field DJ; Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK., Gignac PM; Oklahoma State University Center for Health Sciences, Tulsa, OK 74107, USA., Gold MEL; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA; Biology Department, Suffolk University, Boston, MA 02108, USA., Kimball RT; Department of Anatomical Sciences, Stony Brook University, Stony Brook, NY 11794, USA., Kawabe S; Fukui Prefectural Dinosaur Museum, 51-11 Terao, Muroko, Katsuyama, Fukui 911-8601, Japan., Lefebvre L; Department of Biology, McGill University, Montréal, QC H3A 0G4, Canada., Marugán-Lobón J; Departamento de Biología, Universidad Autónoma de Madrid, 28049 Madrid, Spain; Dinosaur Institute, Natural History Museum of Los Angeles, Los Angeles, CA 90007, USA., Mongle CS; Division of Anthropology, American Museum of Natural History, New York, NY 10024, USA., Morhardt A; Washington University School of Medicine in St. Louis, St. Louis, MO 06130, USA., Norell MA; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA., Ridgely RC; Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Ohio Center for Ecology and Evolutionary Studies, Athens, OH 45701, USA., Rothman RS; Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, NY 11794, USA., Scofield RP; Canterbury Museum, Christchurch 8013, New Zealand., Tambussi CP; Centro de Investigaciones en Ciencias de la Tierra, UNC, CONICET, Córdoba X5016GCA, Argentina., Torres CR; Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA., van Tuinen M; Department of Otorhinolaryngology, University Medical Center, Groningen 9713, the Netherlands., Walsh SA; National Museum of Scotland, Edinburgh EH1 1JF, UK., Watanabe A; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA; Department of Anatomy, New York Institute of Technology, College of Osteopathic Medicine, Old Westbury, NY 11568, USA; Life Sciences Department, Vertebrates Division, Natural History Museum, London SW7 5BD, UK., Witmer LM; Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Ohio Center for Ecology and Evolutionary Studies, Athens, OH 45701, USA., Wright AK; Sea Mammal Research Unit, University of St Andrews, St Andrews, KY16 9XL, UK., Zanno LE; Paleontology, North Carolina Museum of Natural Sciences, Raleigh, NC 27601, USA; Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, USA., Jarvis ED; The Rockefeller University, New York, NY 10065, USA; The Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA., Smaers JB; Department of Anthropology, Stony Brook University, Stony Brook, NY 11794, USA; Division of Anthropology, American Museum of Natural History, New York, NY 10024, USA.
Jazyk:	angličtina
Zdroj:	Current biology : CB [Curr Biol] 2020 Jun 08; Vol. 30 (11), pp. 2026-2036.e3. Date of Electronic Publication: 2020 Apr 23.
DOI:	10.1016/j.cub.2020.03.060
Abstrakt:	Relative brain sizes in birds can rival those of primates, but large-scale patterns and drivers of avian brain evolution remain elusive. Here, we explore the evolution of the fundamental brain-body scaling relationship across the origin and evolution of birds. Using a comprehensive dataset sampling> 2,000 modern birds, fossil birds, and theropod dinosaurs, we infer patterns of brain-body co-variation in deep time. Our study confirms that no significant increase in relative brain size accompanied the trend toward miniaturization or evolution of flight during the theropod-bird transition. Critically, however, theropods and basal birds show weaker integration between brain size and body size, allowing for rapid changes in the brain-body relationship that set the stage for dramatic shifts in early crown birds. We infer that major shifts occurred rapidly in the aftermath of the Cretaceous-Paleogene mass extinction within Neoaves, in which multiple clades achieved higher relative brain sizes because of a reduction in body size. Parrots and corvids achieved the largest brains observed in birds via markedly different patterns. Parrots primarily reduced their body size, whereas corvids increased body and brain size simultaneously (with rates of brain size evolution outpacing rates of body size evolution). Collectively, these patterns suggest that an early adaptive radiation in brain size laid the foundation for subsequent selection and stabilization. Competing Interests: Declaration of Interests The authors declare no competing interests. (Copyright © 2020 Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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