[dinosaur] Avian wing range of motion (free pdf)

Ben Creisler
[email protected]


A new paper with free pdf:


V. B. Baliga, I. Szabo and D. L. Altshuler (2019)
Range of motion in the avian wing is strongly associated with flight
behavior and body mass.
Science Advances 5(10): eaaw6670
DOI: 10.1126/sciadv.aaw6670
https://urldefense.proofpoint.com/v2/url?u=https-3A__advances.sciencemag.org_content_5_10_eaaw6670&d=DwIBaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=B57YEKyChQuRH86hqhaVvLK9usbbiQqt76NJl6-_rWs&s=-qruuaEC5PR2K6Cr-ZelQCQBUFqndlLU8SCOE-7dvEI&e= 


Avian wing shape is highly variable across species but only coarsely
associated with flight behavior, performance, and body mass. An
underexplored but potentially explanatory feature is the ability of birds
to actively change wing shape to meet aerodynamic and behavioral demands.
Across 61 species, we found strong associations with flight behavior and
mass for range of motion traits but not wing shape and strikingly different
associations for different aspects of motion capability. Further, static
morphology exhibits high phylogenetic signal, whereas range of motion shows
greater evolutionary lability. These results suggest a new framework for
understanding the evolution of avian flight: Rather than wing morphology,
it is range of motion, an emergent property of morphology, that is
predominantly reshaped as flight strategy and body size evolve.

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