Re: NEED BIRD RESPIRATION REF

["Matthew Troutman" <m_troutman@hotmail.com>]

>In Avian Biology II 1972, p. 299, R. Lasiewski says that the largest 
changes
>in bird ribcage volume during respiration occur in the posterior ribs. 
Alas,
>he does not give a clear reference to the source. Anyone know studies
>detailing rib-muscle function in birds? 
>
>GSPaul
>
 While this is somewhat not the same topic Feduccia reports in his 
lastest book and in his early bird radiation paper that Ruben believes 
that the uncinates and the sternum ventilate the air-sacs and help birds 
breathe with the air-sacs. This could be of some use.

 WMattTroutman

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