Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides
- Autores
- Fischbein, Deborah; Bettinelli, Julieta; Bernstein, Carlos; Corley, Juan Carlos
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 1. In environments in which resources are distributed heterogeneously, patch choice and the length of time spent on a patch by foragers are subject to strong selective pressures. This is particularly true for parasitoids because their host foraging success translates directly into individual fitness. 2. The aim of this study was to test whether: (i) females of the parasitoid Ibalia leucospoides (Hymenoptera: Ibaliidae) can discriminate among patches according to host numbers; (ii) the surrounding context affects the initial choice of patch, as well as time spent on patch; and (iii) the perceived quality of a given patch is affected by the quality of the surrounding patches. 3. Each female was randomly exposed to one of three different three-patch environments which differed in host number per patch, mean environment host number and host distribution among patches. For each treatment level, the first patch chosen and the time allocated to each patch visited by the female were recorded. 4. Females of I. leucospoides were able to discriminate different levels of host numbers among patches from a distance. The patch bearing the highest number of hosts was, predominantly, the first choice. Patch host number in association with mean habitat profitability influenced the length of time spent on the first patch visited. By contrast, variance in habitat profitability did not influence time allocation decisions. Contrary to the study prediction, there were no significant habitat-dependent time allocation differences among patches holding the same number of hosts. 5. The results indicate that, for I. leucospoides, patch exploitation decisions are partially influenced by information obtained from the habitat as a whole, a behaviour that may prove to indicate adaptive ability in highly patchy environments, as well as suggesting the presence of good cognitive abilities in this parasitoid species.
EEA Bariloche
Fil: Fischbein, Deborah. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; Francia
Fil: Bettinelli, Julieta. University of New Mexico. Department of Biology; Estados Unidos
Fil: Bernstein, Carlos. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; Francia
Fil: Corley, Juan Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina - Fuente
- Ecological entomology 37 (3) : 161–168. (June 2012)
- Materia
-
Parasitoides
Búsqueda de Alimento
Habitat
Parasitoids
Foraging
Habitats
Ibalia Leucospoides - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/2020
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Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoidesFischbein, DeborahBettinelli, JulietaBernstein, CarlosCorley, Juan CarlosParasitoidesBúsqueda de AlimentoHabitatParasitoidsForagingHabitatsIbalia Leucospoides1. In environments in which resources are distributed heterogeneously, patch choice and the length of time spent on a patch by foragers are subject to strong selective pressures. This is particularly true for parasitoids because their host foraging success translates directly into individual fitness. 2. The aim of this study was to test whether: (i) females of the parasitoid Ibalia leucospoides (Hymenoptera: Ibaliidae) can discriminate among patches according to host numbers; (ii) the surrounding context affects the initial choice of patch, as well as time spent on patch; and (iii) the perceived quality of a given patch is affected by the quality of the surrounding patches. 3. Each female was randomly exposed to one of three different three-patch environments which differed in host number per patch, mean environment host number and host distribution among patches. For each treatment level, the first patch chosen and the time allocated to each patch visited by the female were recorded. 4. Females of I. leucospoides were able to discriminate different levels of host numbers among patches from a distance. The patch bearing the highest number of hosts was, predominantly, the first choice. Patch host number in association with mean habitat profitability influenced the length of time spent on the first patch visited. By contrast, variance in habitat profitability did not influence time allocation decisions. Contrary to the study prediction, there were no significant habitat-dependent time allocation differences among patches holding the same number of hosts. 5. The results indicate that, for I. leucospoides, patch exploitation decisions are partially influenced by information obtained from the habitat as a whole, a behaviour that may prove to indicate adaptive ability in highly patchy environments, as well as suggesting the presence of good cognitive abilities in this parasitoid species.EEA BarilocheFil: Fischbein, Deborah. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; FranciaFil: Bettinelli, Julieta. University of New Mexico. Department of Biology; Estados UnidosFil: Bernstein, Carlos. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; FranciaFil: Corley, Juan Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina2018-03-14T13:02:57Z2018-03-14T13:02:57Z2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/2020http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2311.2012.01350.x/abstract0307-69461365-2311DOI: 10.1111/j.1365-2311.2012.01350.xEcological entomology 37 (3) : 161–168. (June 2012)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:16Zoai:localhost:20.500.12123/2020instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:16.488INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
title |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
spellingShingle |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides Fischbein, Deborah Parasitoides Búsqueda de Alimento Habitat Parasitoids Foraging Habitats Ibalia Leucospoides |
title_short |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
title_full |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
title_fullStr |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
title_full_unstemmed |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
title_sort |
Patch choice from a distance and use of habitat information during foraging by the parasitoid Ibalia leucospoides |
dc.creator.none.fl_str_mv |
Fischbein, Deborah Bettinelli, Julieta Bernstein, Carlos Corley, Juan Carlos |
author |
Fischbein, Deborah |
author_facet |
Fischbein, Deborah Bettinelli, Julieta Bernstein, Carlos Corley, Juan Carlos |
author_role |
author |
author2 |
Bettinelli, Julieta Bernstein, Carlos Corley, Juan Carlos |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Parasitoides Búsqueda de Alimento Habitat Parasitoids Foraging Habitats Ibalia Leucospoides |
topic |
Parasitoides Búsqueda de Alimento Habitat Parasitoids Foraging Habitats Ibalia Leucospoides |
dc.description.none.fl_txt_mv |
1. In environments in which resources are distributed heterogeneously, patch choice and the length of time spent on a patch by foragers are subject to strong selective pressures. This is particularly true for parasitoids because their host foraging success translates directly into individual fitness. 2. The aim of this study was to test whether: (i) females of the parasitoid Ibalia leucospoides (Hymenoptera: Ibaliidae) can discriminate among patches according to host numbers; (ii) the surrounding context affects the initial choice of patch, as well as time spent on patch; and (iii) the perceived quality of a given patch is affected by the quality of the surrounding patches. 3. Each female was randomly exposed to one of three different three-patch environments which differed in host number per patch, mean environment host number and host distribution among patches. For each treatment level, the first patch chosen and the time allocated to each patch visited by the female were recorded. 4. Females of I. leucospoides were able to discriminate different levels of host numbers among patches from a distance. The patch bearing the highest number of hosts was, predominantly, the first choice. Patch host number in association with mean habitat profitability influenced the length of time spent on the first patch visited. By contrast, variance in habitat profitability did not influence time allocation decisions. Contrary to the study prediction, there were no significant habitat-dependent time allocation differences among patches holding the same number of hosts. 5. The results indicate that, for I. leucospoides, patch exploitation decisions are partially influenced by information obtained from the habitat as a whole, a behaviour that may prove to indicate adaptive ability in highly patchy environments, as well as suggesting the presence of good cognitive abilities in this parasitoid species. EEA Bariloche Fil: Fischbein, Deborah. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; Francia Fil: Bettinelli, Julieta. University of New Mexico. Department of Biology; Estados Unidos Fil: Bernstein, Carlos. Centre National de la Recherche Scientifique. Laboratoire de Biometrie et Biologie Evolutive; Francia Fil: Corley, Juan Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina |
description |
1. In environments in which resources are distributed heterogeneously, patch choice and the length of time spent on a patch by foragers are subject to strong selective pressures. This is particularly true for parasitoids because their host foraging success translates directly into individual fitness. 2. The aim of this study was to test whether: (i) females of the parasitoid Ibalia leucospoides (Hymenoptera: Ibaliidae) can discriminate among patches according to host numbers; (ii) the surrounding context affects the initial choice of patch, as well as time spent on patch; and (iii) the perceived quality of a given patch is affected by the quality of the surrounding patches. 3. Each female was randomly exposed to one of three different three-patch environments which differed in host number per patch, mean environment host number and host distribution among patches. For each treatment level, the first patch chosen and the time allocated to each patch visited by the female were recorded. 4. Females of I. leucospoides were able to discriminate different levels of host numbers among patches from a distance. The patch bearing the highest number of hosts was, predominantly, the first choice. Patch host number in association with mean habitat profitability influenced the length of time spent on the first patch visited. By contrast, variance in habitat profitability did not influence time allocation decisions. Contrary to the study prediction, there were no significant habitat-dependent time allocation differences among patches holding the same number of hosts. 5. The results indicate that, for I. leucospoides, patch exploitation decisions are partially influenced by information obtained from the habitat as a whole, a behaviour that may prove to indicate adaptive ability in highly patchy environments, as well as suggesting the presence of good cognitive abilities in this parasitoid species. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06 2018-03-14T13:02:57Z 2018-03-14T13:02:57Z |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/2020 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2311.2012.01350.x/abstract 0307-6946 1365-2311 DOI: 10.1111/j.1365-2311.2012.01350.x |
url |
http://hdl.handle.net/20.500.12123/2020 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2311.2012.01350.x/abstract |
identifier_str_mv |
0307-6946 1365-2311 DOI: 10.1111/j.1365-2311.2012.01350.x |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Ecological entomology 37 (3) : 161–168. (June 2012) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
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12.559606 |