THE VISUAL ECOLOGY OF PUERTO RICAN ANOLINE LIZARDS : HABITAT LIGHT AND SPECTRAL SENSITIVITY

摘要: The visual ecology of six closely related species Puerto Rican anoline lizards was investigated and they were found to occupy four distinct habitat types in terms light conditions: “full shade”, “partial “no “forest canopy.”The habitats differed substantially total radiance irradiance as well the shape spectrum. spectrum similar all habitats. We used electroretinogram (ERG) flicker photometry measure spectral sensitivity curves for be similar. peaked range 550–560 nm, which matched peak spectral-sensitivity curve those a number other terrestrial vertebrates. suggest that convergence photopic ERG-determined many vertebrates may, part, due fact background is dominated by reflectance green vegetation peaks at 550 nm.