Abstract:
:The capacity for aerial maneuvering was likely a major influence on the evolution of flying animals. Here we evaluate consequences of paravian morphology for aerial performance by quantifying static stability and control effectiveness of physical models for numerous taxa sampled from within the lineage leading to birds (Paraves). Results of aerodynamic testing are mapped phylogenetically to examine how maneuvering characteristics correspond to tail shortening, forewing elaboration, and other morphological features. In the evolution of Paraves we observe shifts from static stability to inherently unstable aerial planforms; control effectiveness also migrated from tails to the forewings. These shifts suggest that a some degree of aerodynamic control and capacity for maneuvering preceded the evolution of a strong power stroke. The timing of shifts also suggests features normally considered in light of development of a power stroke may play important roles in control.
journal_name
PeerJjournal_title
PeerJauthors
Evangelista D,Cam S,Huynh T,Kwong A,Mehrabani H,Tse K,Dudley Rdoi
10.7717/peerj.632subject
Has Abstractpub_date
2014-10-16 00:00:00pages
e632issn
2167-8359pii
632journal_volume
2pub_type
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