Range of motion in the avian wing is strongly associated with flight behavior and body mass

被引：42

作者：

Baliga, V. B. ^{[1
]}

Szabo, I. ^{[2
]}

Altshuler, D. L. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada

[2] Univ British Columbia, Cowan Tetrapod Collect, Beaty Biodivers Museum, Vancouver, BC V6T 1Z4, Canada

来源：

SCIENCE ADVANCES | 2019年 / 5卷 / 10期

关键词：

PHYLOGENETIC SIGNAL; BIRDS; EVOLUTION; MODELS; COEFFICIENT; RADIATION; SOFTWARE; SWIFTS; RADAR; AVES;

D O I：

10.1126/sciadv.aaw6670

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页数：14