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El manejo de inclinación asistido por alas y la evolución del vuelo de vuelo

Kenneth P Dial¹

¹Flight Laboratory, Avian Studies Program, Division of Biological Sciences, University of Montana (UM), Missoula, MT 59812, USA. kdial@selway.umt.edu

Science (New York, N.Y.)

|January 18, 2003

Resumen

Las aves Galliformes utilizan la carrera en pendiente asistida por alas (WAIR) para mejorar la tracción en pendientes, ayudando tanto a los adultos como a los polluelos en desarrollo. Este comportamiento ofrece información sobre la evolución del vuelo de las aves y la locomoción de los dinosaurios.

Área de la Ciencia:

La biomecánica es la biomecánica.
Biología evolutiva Biología evolutiva.
La locomoción de los animales.

Sus antecedentes:

Las aves Galliformes utilizan el aleteo de las alas para generar fuerzas aerodinámicas para mejorar la tracción de las extremidades posteriores.
Este comportamiento, correr en pendiente asistido por alas (WAIR), se observa tanto en entornos naturales como de laboratorio.

Objetivo del estudio:

Para documentar el uso de WAIR en aves galíformes.
Explorar el papel de WAIR en el rendimiento locomotor y sus implicaciones para la evolución del vuelo.

Principales métodos:

Observación de aves adultas en entornos naturales y de laboratorio.
Documentación de WAIR en el desarrollo de polluelos antes de que logren un vuelo aéreo sostenido.

Principales resultados:

Las aves adultas capaces de volar usan preferentemente WAIR para acceder a refugios elevados.
Los pollitos en desarrollo utilizan WAIR para mejorar la tracción del pie y permitir el funcionamiento vertical.

Conclusiones:

WAIR es un comportamiento crucial para las aves galíformes, mejorando la locomoción en pendientes.
Este comportamiento proporciona información sobre la función de las alas incipientes en los dinosaurios terópodos y la evolución del vuelo aviar.

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