Jan 13, 2014

Shifts in stability and control effectiveness during evolution of Paraves support aerial maneuvering hypotheses for flight origins

BioRxiv : the Preprint Server for Biology
Dennis EvangelistaRobert Dudley


The capacity for aerial maneuvering shaped the evolution of flying animals. Here we evaluate consequences of aviaian morphology for aerial performance1,2 by quantifying static stability and control effectiveness of physical models3 for numerous taxa sampled from within the lineage leading to birds (Paraves4,5). Results of aerodynamic testing are mapped phylogenetically6-10 to examine how maneuvering characteristics correlate with tail shortening, fore- and hindwing elaboration, and other morphological features11. In the evolution of the 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 some degree of aerodynamic control and and capacity for manoevering preceded the evolution of strong power stroke. The timing of shifts also suggests some features normally considered in light of development of a power stroke may play important roles in control.

  • References
  • Citations


  • We're still populating references for this paper, please check back later.
  • References
  • Citations


  • This paper may not have been cited yet.

Mentioned in this Paper

Science of Morphology
Cerebrovascular Accident
Enzyme Stability
Sampling - Surgical Action

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.