Intraspecific variation and detectability of iridescence in the dorsal coloration of a wall lizard DOI
Javier Ábalos, Ferran de la Cruz, Guillem Pérez i de Lanuza

et al.

Journal of Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Abstract Iridescence refers to the optical property of surfaces for which reflected wavelengths depend on viewing geometry. Although iridescence underlies some most striking animal colours, sensory stimulation elicited by iridescent spectral shifts in relevant observers has seldom been explored. Wall lizards (genus Podarcis ), with remarkable intraspecific colour variation and possible iridescence, offer a unique opportunity investigate how these traits interact shape overall appearance. Here, we set out study liolepis two localities differ dorsal coloration: València Botanical Garden (EB) La Murta Natural Park (LM). To determine presence angle‐dependent reflectance, measured coloration at three different configurations (0°, 60° 90° angles between incident light observer location) 87 either sex used visual modelling their detectability when viewed conspecifics, raptors humans. Our results show that P. varies chromatically locality also shows (i.e. reflectance peaks shorter increasing angle). Lizards from EB are brown dorsally, whereas LM, especially males, green background coloration, peaking LM compared EB. Angle‐dependent peak location smaller males than other groups, yet appears more pronounced larger chromatic distances angles) due greater overlap involved waveband receiver cone sensitivities. Additionally, may be noticeable humans lizards. findings suggest influences across observers, underscoring need objective quantification assess ecological consequences coloration.

Language: Английский

Key questions for future research in Physiological Entomology DOI Open Access
Thies H. Büscher, Arthur G. Appel, Tim Lüddecke

et al.

Physiological Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

Citations

0
Intraspecific variation and detectability of iridescence in the dorsal coloration of a wall lizard DOI
Javier Ábalos, Ferran de la Cruz, Guillem Pérez i de Lanuza

et al.

Journal of Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Abstract Iridescence refers to the optical property of surfaces for which reflected wavelengths depend on viewing geometry. Although iridescence underlies some most striking animal colours, sensory stimulation elicited by iridescent spectral shifts in relevant observers has seldom been explored. Wall lizards (genus Podarcis ), with remarkable intraspecific colour variation and possible iridescence, offer a unique opportunity investigate how these traits interact shape overall appearance. Here, we set out study liolepis two localities differ dorsal coloration: València Botanical Garden (EB) La Murta Natural Park (LM). To determine presence angle‐dependent reflectance, measured coloration at three different configurations (0°, 60° 90° angles between incident light observer location) 87 either sex used visual modelling their detectability when viewed conspecifics, raptors humans. Our results show that P. varies chromatically locality also shows (i.e. reflectance peaks shorter increasing angle). Lizards from EB are brown dorsally, whereas LM, especially males, green background coloration, peaking LM compared EB. Angle‐dependent peak location smaller males than other groups, yet appears more pronounced larger chromatic distances angles) due greater overlap involved waveband receiver cone sensitivities. Additionally, may be noticeable humans lizards. findings suggest influences across observers, underscoring need objective quantification assess ecological consequences coloration.

Language: Английский

Citations

0