spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 1. Fitted curves for (A) drag D (in Newtons) vs speed U (m s–1), and (B) drag coefficient CD vs Reynolds number Re, measured on frozen birds in a tow tank for a common guillemot (COGU) mounted on a sting (from Lovvorn et al., 1999), and for the same COGU and a Brünnich's guillemot (BRGU) towed with a harness and drogue system (from Lovvorn et al., 2001). Vertical lines indicate the range of speeds and Re observed in free-ranging BRGU during descent and ascent (Figs 2 and 3). The equation for the BRGU towed with the harness and drogue is D=1.08+2.55U2–1.38U3+0.276U4.





Right arrow Return to article