The local optical factor as an orientation cue for the sandhopper Talitrus saltator Montagu (Amphipoda, Talitridae)
Year: 2002
Authors: Ugolini A., Meucci L., Tiribilli B., Lindstrom M.
Autors Affiliation: Univ Florence, Dipartimento Biol Anim & Genet; Ctr SFET, CNR; Ist Nazl Ott Applicata; Univ Helsinki, Tvarminne Zool.
Abstract: The aim of the present study was to assess the influence of the local optical factor (i.e., inhomogeneity in spectral composition between the hemidomes of sky over the sea and over land at the beach) on the ability of zonal orientation of the amphipod Talitrus saltator. The experiments were conducted in the laboratory using coloured filters and an apparatus that provides for orientation in artifcial conditions comparable to that observed under natural sun and sky. The results show that T. saltator can effectively use the inhomogeneity between the two hemidomes, but only if the colour distance between them is much greater than that found in the wild. This makes the possibility of perception – and thus use – of the local optical factor rather unlikely in natural conditions.
Journal/Review: MARINE AND FRESHWATER BEHAVIOUR AND PHYSIOLOGY
Volume: 35 (1-2) Pages from: 27 to: 36
KeyWords: orientation; amphipods; sandhoppers; Talitrus saltator; local cuesDOI: 10.1080/10236240290025590ImpactFactor: 0.306Citations: 3data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here
