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Experimental evidence for a magnetic sense in Neotropical migrating butterflies (Lepidoptera: Pieridae)
| dc.creator | Srygley, Robert | spa |
| dc.creator | Dudley, Robert | spa |
| dc.creator | Oliveira, Evandro | spa |
| dc.creator | Riveros Rivera, Andre Josafat | |
| dc.date.accessioned | 2020-08-06T16:21:15Z | |
| dc.date.available | 2020-08-06T16:21:15Z | |
| dc.date.created | 2006-01 | spa |
| dc.description.abstract | We tested whether migrating Aphrissa statira butterflies orient with a magnetic compass. We captured migrants flying over Lake Gatun, Panama, and exposed experimental butterflies to a strong magnetic field. These and unmanipulated control butterflies were released back over the lake. Experimental butterflies had a more dispersed pattern of orientation than control butterflies. The average direction adopted was northeast, 160° anticlockwise to the natural migratory direction. Unmanipulated control butterflies adopted two diametrically opposed orientations: one shifted 33° clockwise, and another 147° anticlockwise, to the migratory direction. Control and experimental butterflies differed in that some controls oriented towards the migratory direction. These differences in orientation support the hypothesis of a sense for magnetic orientation cues. Unmanipulated butterflies released over the lake when the sky was completely overcast were significantly oriented towards their direction before capture (187° and 203°, respectively), further supporting the magnetic compass hypothesis. In a third experiment, we obstructed sun compass cues and reversed the horizontal component of the local geomagnetic field to position magnetic north towards the geographical south pole within a flight arena into which we released individual butterflies. Experimental butterflies experiencing the reversed magnetic field oriented on average 180° opposite to their natural migratory direction. Control butterflies, for which the position of magnetic north was unaltered, were oriented both towards and 180° opposite to the natural migratory direction. This difference between orientations of control and experimental butterflies also supports the hypothesis of a sense for magnetic orientation cues. | eng |
| dc.format.mimetype | application/pdf | |
| dc.identifier.doi | https://doi.org/10.1016/j.anbehav.2005.04.013 | |
| dc.identifier.issn | ISSN: 0003-3472 | |
| dc.identifier.issn | EISSN: 1095-8282 | |
| dc.identifier.uri | https://repository.urosario.edu.co/handle/10336/26303 | |
| dc.language.iso | eng | spa |
| dc.publisher | Elsevier | spa |
| dc.relation.citationEndPage | 191 | |
| dc.relation.citationIssue | No. 1 | |
| dc.relation.citationStartPage | 183 | |
| dc.relation.citationTitle | Animal Behaviour, The British Journal of Animal Behaviour | |
| dc.relation.citationVolume | Vol. 71 | |
| dc.relation.ispartof | Animal Behaviour, ISSN: 0003-3472;EISSN: 1095-8282, Vol.71, No.1 (2006-01); pp.183-191 | spa |
| dc.relation.uri | https://www.sciencedirect.com/science/article/abs/pii/S0003347205003593?via%3Dihub | spa |
| dc.relation.uri | https://repository.si.edu/bitstream/handle/10088/18790/stri_Srygley_Dudley_Oliveiras_and_Riveros_2006.pdf | spa |
| dc.rights.accesRights | info:eu-repo/semantics/restrictedAccess | |
| dc.rights.acceso | Restringido (Acceso a grupos específicos) | spa |
| dc.source | Animal Behaviour, The British Journal of Animal Behaviour | spa |
| dc.source.instname | instname:Universidad del Rosario | |
| dc.source.reponame | reponame:Repositorio Institucional EdocUR | |
| dc.subject.keyword | Aphrissa statira | spa |
| dc.subject.keyword | Magnetic compass | spa |
| dc.title | Experimental evidence for a magnetic sense in Neotropical migrating butterflies (Lepidoptera: Pieridae) | spa |
| dc.title.TranslatedTitle | Evidencia experimental de un sentido magnético en mariposas migratorias neotropicales (Lepidoptera: Pieridae) | spa |
| dc.type | article | eng |
| dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | |
| dc.type.spa | Artículo | spa |
