Table 4.

Regression y-intercepts and slopes for nine species

SpeciesMeans.e.m.
y-intercept
   Melospiza georgiana1545572
   Camarhynchus psittacula1789-
   Geospiza fortis1965111
   Geospiza magnirostris1976-
   Geospiza fuliginosa2507269
   Zonotrichia albicollis3016302
   Camarhynchus parvulus3111452
   Platyspiza crassirostris3145-
   Certhidea olivacea4377-
Slope
   Zonotrichia albicollis1158209
   Geospiza fortis2740285
   Certhidea olivacea2370-
   Geospiza magnirostris2567-
   Camarhynchus parvulus2762665
   Platyspiza crassirostris3407-
   Camarhynchus psittacula4089-
   Melospiza georgiana4228664
   Geospiza fuliginosa63922930
  • Values are means ± s.e.m. Significant contrasts from post-hoc tests are indicated by separations between vertical lines.