Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids
1. Interspecific competition among hymenopteran parasitoids may shape their behavioural strategies for host resource exploitation. In order to reduce or prevent competition, many parasitoid species have evolved the ability to discriminate between unparasitised hosts and hosts parasitised by another...
| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/6117 https://onlinelibrary.wiley.com/doi/full/10.1111/een.12479 |
| _version_ | 1855032369926373376 |
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| author | Cebolla, Ruth Bru, Pablo Urbaneja, Alberto Tena, Alejandro |
| author_browse | Bru, Pablo Cebolla, Ruth Tena, Alejandro Urbaneja, Alberto |
| author_facet | Cebolla, Ruth Bru, Pablo Urbaneja, Alberto Tena, Alejandro |
| author_sort | Cebolla, Ruth |
| collection | ReDivia |
| description | 1. Interspecific competition among hymenopteran parasitoids may shape their behavioural strategies for host resource exploitation. In order to reduce or prevent competition, many parasitoid species have evolved the ability to discriminate between unparasitised hosts and hosts parasitised by another parasitoid species (i.e. heterospecific host discrimination). However, discriminatory ability might be affected by host instar.
2. This study reports the first results on whether host instar can influence the use of heterospecific‐parasitised hosts by sympatric parasitoids of the genus Aphytis (Hymenoptera: Aphelinidae).
3. Aphytis melinus and Aphytis chrysomphali discriminated between unparasitised and heterospecific‐parasitised hosts when they found a third‐instar host (high quality), with a tendency to multi‐parasitise. However, this discrimination was not observed in the second instar (lower size).
4. The behavioural strategies adopted towards multi‐parasitise third‐instar hosts varied between both species. Aphytis chrysomphali reduced its clutch size in heterospecific‐parasitised hosts, whereas A. melinus tended to probe them for longer than healthy hosts.
5. Overall, our results highlight the importance of host instar in the study of intrinsic competition between parasitoids |
| format | article |
| id | ReDivia6117 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | ReDivia61172025-04-25T14:46:15Z Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids Cebolla, Ruth Bru, Pablo Urbaneja, Alberto Tena, Alejandro H10 Pests of plants Aphytis Aonidiella aurantii Interspecific competition Parasitism 1. Interspecific competition among hymenopteran parasitoids may shape their behavioural strategies for host resource exploitation. In order to reduce or prevent competition, many parasitoid species have evolved the ability to discriminate between unparasitised hosts and hosts parasitised by another parasitoid species (i.e. heterospecific host discrimination). However, discriminatory ability might be affected by host instar. 2. This study reports the first results on whether host instar can influence the use of heterospecific‐parasitised hosts by sympatric parasitoids of the genus Aphytis (Hymenoptera: Aphelinidae). 3. Aphytis melinus and Aphytis chrysomphali discriminated between unparasitised and heterospecific‐parasitised hosts when they found a third‐instar host (high quality), with a tendency to multi‐parasitise. However, this discrimination was not observed in the second instar (lower size). 4. The behavioural strategies adopted towards multi‐parasitise third‐instar hosts varied between both species. Aphytis chrysomphali reduced its clutch size in heterospecific‐parasitised hosts, whereas A. melinus tended to probe them for longer than healthy hosts. 5. Overall, our results highlight the importance of host instar in the study of intrinsic competition between parasitoids 2018-05-16T15:25:24Z 2018-05-16T15:25:24Z 2017 article acceptedVersion Cebolla, R., Bru, P., Urbaneja, A., Tena, A. (2018). Effect of host instar on host discrimination of heterospecific-parasitised hosts by sympatric parasitoids. Ecological Entomology, 43(2):137-145. http://hdl.handle.net/20.500.11939/6117 10.1111/een.12479 https://onlinelibrary.wiley.com/doi/full/10.1111/een.12479 en electronico |
| spellingShingle | H10 Pests of plants Aphytis Aonidiella aurantii Interspecific competition Parasitism Cebolla, Ruth Bru, Pablo Urbaneja, Alberto Tena, Alejandro Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title | Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title_full | Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title_fullStr | Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title_full_unstemmed | Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title_short | Effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| title_sort | effect of host instar on host discrimination of heterospecific parasitized hosts by sympatric parasitoids |
| topic | H10 Pests of plants Aphytis Aonidiella aurantii Interspecific competition Parasitism |
| url | http://hdl.handle.net/20.500.11939/6117 https://onlinelibrary.wiley.com/doi/full/10.1111/een.12479 |
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