Spectral filtering and celestial orientation in the semi-terrestrial isopod Tylos europaeus
Anno: 1997
Autori: Ugolini A., Moribato F., Castellini C.
Affiliazione autori: Dip. di Biologia Animale e Genetica, Università di Firenze, Via Romana 17, Firenze, Italy;
Centro di Studio per la Faunistica ed Ecologia Tropicali del CNR, Via Romana 17. firenze, Italy;
Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy
Abstract: Adults of the littoral isopod Tylos europaeus were tested in a confined environment to evaluate the effect of spectral filtering on their capacity for celestial orientation, both with vision of the sun and with the sun screened from view. The interposition of filters (clear glass, blue and orange) influences the capacity to assume the correct (sea-land) escape direction: the orientation ability gradually decreases as the wavelengths increase. However T. europaeus seems still to be able to use the sun for compass orientation at λ ≥ 550 nm. The greatest effect is achieved with the sun screened. T. europaeus seems also to use a celestial orienting factor perceived in the UV-blue range.
Giornale/Rivista: ETHOLOGY ECOLOGY & EVOLUTION
Volume: 9 (3) Da Pagina: 261 A: 268
Parole chiavi: spectral filtering; orientation; terrestrial isopod; Tylos europaeus; Citazioni: 2dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui