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Fig. 3. Magnetic bearings plotted relative to home direction after housing in
outdoor tanks under long-wavelength light (data from
Table 1). (A) Magnetic bearings
of newts housed under long-wavelength light and tested under full-spectrum
light failed to show a significant direction of orientation relative to home
(13°, r=0.11, P>0.10; Rayleigh test). (B) The same
was true of newts housed and tested under long-wavelength light (351°,
r=0.19, P>0.10). Diamonds represent newts collected in
ponds to the east-southeast (ESE) of the testing site, and circles represent
newts collected from ponds to the south-southwest (SSW) of the testing site.
NS, not significant.