Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum

Previous studies in the wolf spider Lycosa tarantula (Linnaeus 1758) have shown that homing is carried out by path integration and that, in the absence of information relative to the sun’s position or any pattern of polarized light, L. tarantula obtains information as to the angle it must turn to ho...

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Detalles Bibliográficos
Autor: Ortega Escobar, Joaquín
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/674330
Acceso en línea:http://hdl.handle.net/10486/674330
https://dx.doi.org/10.1242/jeb.055988
Access Level:acceso abierto
Palabra clave:Spider
Lycosa tarantula
Anterior lateral eye
Homing
Home direction estimation
Psicología
Zoología
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spelling Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratumOrtega Escobar, JoaquínSpiderLycosa tarantulaAnterior lateral eyeHomingHome direction estimationPsicologíaZoologíaPrevious studies in the wolf spider Lycosa tarantula (Linnaeus 1758) have shown that homing is carried out by path integration and that, in the absence of information relative to the sun’s position or any pattern of polarized light, L. tarantula obtains information as to the angle it must turn to home through the anterior lateral eyes (ALEs). In the present study, spiders were trained to walk over a black-and-white grating and afterwards tested either over a white substratum, the same substratum used for training or the same substratum rotated 90deg (two groups: ALEs covered and only ALEs uncovered; they were tested first without their eyes covered and then with their eyes covered). The directional bearing was measured both in training and test conditions. Under the white or the same substratum in test conditions, the directional bearing had the same mean direction and a distribution similar to that of the training sessions. When the substratum was rotated 90deg, the directional bearing had the same mean direction but the distribution was significantly different from that of the training sessions. Moreover, if ALEs were covered, spiders behaved as if the substratum had not been rotated and the directional bearing distribution was similar to that of the training sessions. But, if ALEs were the only eyes uncovered, spiders behaved as if no eyes were covered and directional bearing distribution was similar to that of the test condition. It is suggested that, when homing, L. tarantula uses both idiothetic information and visual information gathered through ALEs. These findings present the first evidence that spiders can use the visual structure of the substratum to return homeThe Company of Biologists Ltd.Departamento de Psicología Biológica y de la SaludFacultad de Psicología20112011-06-22research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/674330https://dx.doi.org/10.1242/jeb.055988reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6743302026-06-23T12:46:27Z
dc.title.none.fl_str_mv Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
title Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
spellingShingle Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
Ortega Escobar, Joaquín
Spider
Lycosa tarantula
Anterior lateral eye
Homing
Home direction estimation
Psicología
Zoología
title_short Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
title_full Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
title_fullStr Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
title_full_unstemmed Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
title_sort Anterior lateral eyes of Lycosa tarantula (Araneae: Lycosidae) are used during orientation to detect changes in the visual structure of the substratum
dc.creator.none.fl_str_mv Ortega Escobar, Joaquín
author Ortega Escobar, Joaquín
author_facet Ortega Escobar, Joaquín
author_role author
dc.contributor.none.fl_str_mv Departamento de Psicología Biológica y de la Salud
Facultad de Psicología
dc.subject.none.fl_str_mv Spider
Lycosa tarantula
Anterior lateral eye
Homing
Home direction estimation
Psicología
Zoología
topic Spider
Lycosa tarantula
Anterior lateral eye
Homing
Home direction estimation
Psicología
Zoología
description Previous studies in the wolf spider Lycosa tarantula (Linnaeus 1758) have shown that homing is carried out by path integration and that, in the absence of information relative to the sun’s position or any pattern of polarized light, L. tarantula obtains information as to the angle it must turn to home through the anterior lateral eyes (ALEs). In the present study, spiders were trained to walk over a black-and-white grating and afterwards tested either over a white substratum, the same substratum used for training or the same substratum rotated 90deg (two groups: ALEs covered and only ALEs uncovered; they were tested first without their eyes covered and then with their eyes covered). The directional bearing was measured both in training and test conditions. Under the white or the same substratum in test conditions, the directional bearing had the same mean direction and a distribution similar to that of the training sessions. When the substratum was rotated 90deg, the directional bearing had the same mean direction but the distribution was significantly different from that of the training sessions. Moreover, if ALEs were covered, spiders behaved as if the substratum had not been rotated and the directional bearing distribution was similar to that of the training sessions. But, if ALEs were the only eyes uncovered, spiders behaved as if no eyes were covered and directional bearing distribution was similar to that of the test condition. It is suggested that, when homing, L. tarantula uses both idiothetic information and visual information gathered through ALEs. These findings present the first evidence that spiders can use the visual structure of the substratum to return home
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-06-22
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/674330
https://dx.doi.org/10.1242/jeb.055988
url http://hdl.handle.net/10486/674330
https://dx.doi.org/10.1242/jeb.055988
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The Company of Biologists Ltd.
publisher.none.fl_str_mv The Company of Biologists Ltd.
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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