Table 3.

Regression analyses for data pooled by species* (units: x-axis=mm, y-axis=kHz)

Speciesn * y-interceptSloper2F-ratio
Camarhynchus parvulus 489273335160.56611.70**
Camarhynchus psittacula 31178940890.5129.92**
Certhidea olivacea 66437723700.3534.33**
Geospiza fuliginosa 293276534890.58397.10**
Geospiza fortis 2034211322830.331004.75**
Geospiza magnirostris 109197625670.2026.87**
Platyspiza crassirostris 27314534070.6037.52**
  • * Calculations exclude data from individuals with NS (not significant) regressions (see Table 2)

  • ** P<0.0001 (after Bonferroni correction)