Paleoatmospheric Changes and the Major Avian Radiation (1 Viewer)

[Fred Ruhe]

Francisco José Serrano, Luis Maria Chiappe, Paul Palmquist, John Long & José L. Sanz, 2017

Paleoatmospheric Changes and the Major Avian Radiation

In: Paleontología y Evolutión de las Aves
Contribuciones del Museo Argentino de Ciencias Naturales 7: 141-156

Free pdf: https://www.researchgate.net/public...t_al_2017_aleoatmospheric_changes_SAPE_volume

Again one of the papers of the 9th SAPE meeting in Argentina, 2016.
Paleontología y Evolución de las Aves

Enjoy,

Fred

 

[Hauksen]

Hi Fred,

Paleoatmospheric Changes and the Major Avian Radiation

Thanks a lot, that's highly interesting!

As a tip for formula nerds: The equations for Pind and Ppro are a bit confusing as they read "2 [BM g]^2 ..." while the authors are actually thinking of "2 [BM a]^2 ..." with a being the normal acceleration in flight.

This is evident (after some serious head scratching) from the equation Pmec = q [Pind (g/q) + Ppro (g/q)] + Ppar.

As drag in the power phase of bounding flight is considerably higher than in powered level flight, the original notation of the formula really had me confused for a moment.

Regards,

Henning