Fig. 3. Changes in carbon isotope ratio (
13C; 
) in three
tissues, wing membranes (A,B; solid circles), blood (C,D; open circles) and
hair (E,F; triangles) of Leptonycteris curasoa (A,C,E) and
Glossophaga soricina (B,D,F) after the diet was changed at day 1 from
the C3 source to products originating from plants representative of
the C4/Cam photosynthetic pathway. Values are means ± 1 S.D.
Exponential regression functions were fitted to the data sets as
indicated.