Tempo and Pattern of Avian Brain Size Evolution

Autor: Lindsay E. Zanno, Louis Lefebvre, Mark A. Norell, R. Paul Scofield, Alexandra K. Wright, Rebecca T. Kimball, Stig A. Walsh, Lawrence M. Witmer, Matthew W. Colbert, Akinobu Watanabe, N. Adam Smith, Jeroen B. Smaers, Vanesa L. De Pietri, Ryan C. Ridgely, Gabriel S. Bever, Daniel J. Field, Estelle Bourdon, Erich D. Jarvis, Jesús Marugán-Lobón, Federico J. Degrange, Jeremy R. Corfield, Marcel van Tuinen, Claudia Patricia Tambussi, Daniel T. Ksepka, Ryan S. Rothman, Soichiro Kawabe, Christopher R. Torres, Carrie S. Mongle, Catherine M. Early, Maria Eugenia Leone Gold, Ashley C. Morhardt, J. Gordon Burleigh, Paul M. Gignac, Julia A. Clarke, Bhart-Anjan S. Bhullar, Edward L. Braun, Amy M. Balanoff
Přispěvatelé: Field, Daniel Jared [0000-0002-1786-0352], Apollo - University of Cambridge Repository
Jazyk: angličtina
Předmět:
Zdroj: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Current Biology, 30(11), 2026-2036.e3. CELL PRESS
ISSN: 0960-9822
Popis: 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. Fil: Ksepka, Daniel T.. Bruce Museum; Estados Unidos. American Museum of Natural History; Estados Unidos. Field Museum of Natural History; Estados Unidos. Smithsonian Institution; Estados Unidos Fil: Balanoff, Amy M.. University Johns Hopkins; Estados Unidos. American Museum of Natural History; Estados Unidos Fil: Smith, N. Adam. Field Museum of Natural History; Estados Unidos. Clemson University; Estados Unidos Fil: Bever, Gabriel S.. American Museum of Natural History; Estados Unidos. Johns Hopkins University; Estados Unidos Fil: Bhullar, Bhart Anjan S.. University of Yale; Estados Unidos Fil: Bourdon, Estelle. Museum National Dhistoire Naturelle; Francia Fil: Braun, Edward L.. University of Florida; Estados Unidos Fil: Burleigh, J. Gordon. University of Florida; Estados Unidos Fil: Clarke, Julia A.. University of Texas at Austin; Estados Unidos Fil: Colbert, Matthew W.. University of Texas at Austin; Estados Unidos Fil: Corfield, Jeremy R.. Salisbury University; Estados Unidos Fil: Degrange, Federico Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina Fil: De Pietri, Vanesa L.. Canterbury Museum; Nueva Zelanda Fil: Early, Catherine M.. Ohio University; Estados Unidos. University of Florida. Florida Museum of Natural History; Estados Unidos Fil: Field, Daniel J.. University of Cambridge; Reino Unido Fil: Gignac, Paul M.. Oklahoma State University; Estados Unidos Fil: Gold, Maria Eugenia Leone. American Museum of Natural History; Estados Unidos. Oklahoma State University Center for Health Sciences; Estados Unidos Fil: Kimball, Rebecca T.. Stony Brook University; Estados Unidos Fil: Kawabe, Soichiro. Fukui Prefectural Dinosaur Museum; Japón Fil: Lefebvre, Louis. McGill University; Canadá Fil: Marugán Lobón, Jesús. Universidad Autónoma de Madrid; España. Natural History Museum of Los Angeles; Estados Unidos Fil: Mongle, Carrie S.. American Museum of Natural History; Estados Unidos Fil: Morhardt, Ashley. University of Washington. School of Medicine; Estados Unidos Fil: Norell, Mark A.. American Museum of Natural History; Estados Unidos Fil: Ridgely, Ryan C.. Ohio University; Estados Unidos Fil: Rothman, Ryan S.. Stony Brook University; Estados Unidos Fil: Scofield, R. Paul. Canterbury Museum; Nueva Zelanda Fil: Tambussi, Claudia Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina Fil: Torres, Christopher R.. University of Texas at Austin; Estados Unidos Fil: van Tuinen, Marcel. Leiden University. Leiden University Medical Center.; Países Bajos Fil: Walsh, Stig A.. National Museum of Scotland; Reino Unido Fil: Watanabe, Akinobu. American Museum of Natural History; Estados Unidos. College of Osteopathic Medicine. New York Institute of Technology; Estados Unidos. Natural History Museum; Reino Unido Fil: Witmer, Lawrence. Ohio University; Estados Unidos Fil: Wright, Alexandra K.. University of St. Andrews; Reino Unido Fil: Zanno, Lindsay E.. North Carolina State University; Estados Unidos Fil: Jarvis, Erich D.. The Rockefeller University; Estados Unidos. The Howard Hughes Medical Institute; Estados Unidos Fil: Smaers, Jeroen B.. Stony Brook University; Estados Unidos. American Museum of Natural History; Estados Unidos
Databáze: OpenAIRE