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
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2020

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spelling 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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