Chapter 1, The Reptilian Spectacle - UWSpace - University of ...

2.2.1 Animals 36
2.2.2 Experimental Equipment and Setup 36
2.2.3 Experimental Protocol 39
2.2.4 Data Analysis 41
2.2.5 Additional Observations 42
2.3 Results 44
2.3.1 Spectacle blood flow in undisturbed snakes 44
2.3.2 Effect of threat perception on spectacle flow 45
2.3.3 Additional Observations 47
2.3.4 Spectacle blood flow in geckos 47
2.4 Discussion 48
Chapter 3, Spectral Transmission of Snake and Gecko Spectacle Scales 52
3.1 Introduction 53
3.2 Methods & Materials 55
3.2.1 Shed skins 55
3.2.2 Spectrophotometry 55
3.2.3 Spectacle thickness measurements 56
3.2.4 Analytical methods 56
3.3 Results 57
3.3.1 Snake Spectacle Scale Transmittance 57
3.3.2 Gecko Spectacle Scale Transmittance 63
3.3.3 Statistical Analyses of λ50% 63
3.3.4 Spectacle Scale Thickness 65
3.3.5 Correlation of spectacle scale thickness and λ50% 67
3.4 Discussion 69
3.4.1 Differences Between Families in Spectacle Scale Transmittance Spectra 69
3.4.2 Functional Differences in Spectacle Scale Transmittance Spectra & Thickness 70
3.4.3 Activity Patterns & Ocular Morphology 71
3.4.4 On Gecko Spectacle Scales 73
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