Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Evidence for orientation using the e-vector direction of polarised light in the sleepy lizard Tiliqua rugosa
Autore:
Freake, MJ;
Indirizzi:
Flinders Univ S Australia, Sch Biol Sci, Adelaide, SA 5001, Australia Flinders Univ S Australia Adelaide SA Australia 5001 , SA 5001, Australia
Titolo Testata:
JOURNAL OF EXPERIMENTAL BIOLOGY
fascicolo: 9, volume: 202, anno: 1999,
pagine: 1159 - 1166
SICI:
0022-0949(199905)202:9<1159:EFOUTE>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPATIAL ORIENTATION; PARIETAL EYE; TRACHYDOSAURUS-RUGOSUS; SOCKEYE SALMON; COMPASS; POLAROTAXIS; POPULATION; PATTERNS; TROUT;
Keywords:
lizard; Tiliqua rugosa; orientation; navigation; e-vector; sky polarisation compass;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Freake, MJ Indiana Univ, Dept Biol, Jordan Hall, Bloomington, IN 47405 USAIndiana Univ Jordan Hall Bloomington IN USA 47405 IN 47405 USA
Citazione:
M.J. Freake, "Evidence for orientation using the e-vector direction of polarised light in the sleepy lizard Tiliqua rugosa", J EXP BIOL, 202(9), 1999, pp. 1159-1166

Abstract

Adult sleepy lizards (Tiliqua rugosa) were trained to orient in a predictable direction under natural sky light in outdoor pens, When tested under clear skies in the late afternoon, without a view of the sun, the lizards exhibited a symmetrical bimodal pattern of orientation with respect to the trained axis. Since the e-vector of polarised light provides an axial rather than a polar cue, the bimodal orientation exhibited by the lizards is consistent with the use of a celestial compass based on sky polarisation patterns. To confirm that the lizards could orient with respect to a polarisation pattern, lizards were trained in indoor pens to orient in a predictable direction under a linearly polarised light source, When tested in a circular arena illuminated by another polarised light source, the lizards used the e-vector direction of the polarised light source to orient along the trained axis, There was no evidence that the lizards were using any room-specific cues or brightness patterns to orient in the training direction, These results support the hypothesis that the lizards can use the e-vector direction ofpolarised light in the form of a sky polarisation compass.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/05/20 alle ore 19:21:54