Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae)
The parasitoid species, Dinarmus basalis, attacks bruchid beetle larvae concealed within hard seeds. Female wasps are able to discriminate the quality of their host but the position in the concealed host system where this discrimination takes place remains unclear. Under laboratory conditions, we investigated whether the cues were detectable: (1) at a medium or short distance from the seed, (2) on the seed, or (3) within the seed, at the point of contact with the host. In particular, we investigated whether internal or external markings are applied by the parasitoid and then recognized in a subsequent encounter or by a conspecific encountering the host. Detailed behavioral observations did not provide evidence of markings being applied onto the seed or used, but showed that host discrimination occurred on the basis of internal cues. The lack of evidence of external markings is unexpected and raises the question as to which circumstances in the parasitoid's ecology and life history could result in such a lack not causing a reduction of fitness.
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Subjects: | H10 - Ravageurs des plantes, L50 - Physiologie et biochimie animales, |
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dig-cirad-fr-5891092021-11-09T09:58:20Z http://agritrop.cirad.fr/589109/ http://agritrop.cirad.fr/589109/ Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae). Gauthier Nathalie, Bénédet Fabrice, Tricault Yann, Monge J.P., Huignard J.. 2002. Journal of Insect Behavior, 15 (4) : 589-606.https://doi.org/10.1023/A:1016341519381 <https://doi.org/10.1023/A:1016341519381> Researchers Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) Gauthier, Nathalie Bénédet, Fabrice Tricault, Yann Monge, J.P. Huignard, J. eng 2002 Journal of Insect Behavior H10 - Ravageurs des plantes L50 - Physiologie et biochimie animales The parasitoid species, Dinarmus basalis, attacks bruchid beetle larvae concealed within hard seeds. Female wasps are able to discriminate the quality of their host but the position in the concealed host system where this discrimination takes place remains unclear. Under laboratory conditions, we investigated whether the cues were detectable: (1) at a medium or short distance from the seed, (2) on the seed, or (3) within the seed, at the point of contact with the host. In particular, we investigated whether internal or external markings are applied by the parasitoid and then recognized in a subsequent encounter or by a conspecific encountering the host. Detailed behavioral observations did not provide evidence of markings being applied onto the seed or used, but showed that host discrimination occurred on the basis of internal cues. The lack of evidence of external markings is unexpected and raises the question as to which circumstances in the parasitoid's ecology and life history could result in such a lack not causing a reduction of fitness. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/589109/1/Gauthier2002_Article_MarkingBehaviorAndDiscriminati.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1023/A:1016341519381 10.1023/A:1016341519381 info:eu-repo/semantics/altIdentifier/doi/10.1023/A:1016341519381 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1023/A:1016341519381 |
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H10 - Ravageurs des plantes L50 - Physiologie et biochimie animales H10 - Ravageurs des plantes L50 - Physiologie et biochimie animales Gauthier, Nathalie Bénédet, Fabrice Tricault, Yann Monge, J.P. Huignard, J. Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
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The parasitoid species, Dinarmus basalis, attacks bruchid beetle larvae concealed within hard seeds. Female wasps are able to discriminate the quality of their host but the position in the concealed host system where this discrimination takes place remains unclear. Under laboratory conditions, we investigated whether the cues were detectable: (1) at a medium or short distance from the seed, (2) on the seed, or (3) within the seed, at the point of contact with the host. In particular, we investigated whether internal or external markings are applied by the parasitoid and then recognized in a subsequent encounter or by a conspecific encountering the host. Detailed behavioral observations did not provide evidence of markings being applied onto the seed or used, but showed that host discrimination occurred on the basis of internal cues. The lack of evidence of external markings is unexpected and raises the question as to which circumstances in the parasitoid's ecology and life history could result in such a lack not causing a reduction of fitness. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes L50 - Physiologie et biochimie animales |
author |
Gauthier, Nathalie Bénédet, Fabrice Tricault, Yann Monge, J.P. Huignard, J. |
author_facet |
Gauthier, Nathalie Bénédet, Fabrice Tricault, Yann Monge, J.P. Huignard, J. |
author_sort |
Gauthier, Nathalie |
title |
Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
title_short |
Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
title_full |
Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
title_fullStr |
Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
title_full_unstemmed |
Marking behavior and discrimination of concealed hosts by the ectoparasitoid, Dinarmus basalis rond. (Hym. Pteromalidae) |
title_sort |
marking behavior and discrimination of concealed hosts by the ectoparasitoid, dinarmus basalis rond. (hym. pteromalidae) |
url |
http://agritrop.cirad.fr/589109/ http://agritrop.cirad.fr/589109/1/Gauthier2002_Article_MarkingBehaviorAndDiscriminati.pdf |
work_keys_str_mv |
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