Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa

The spider Misumenops pallidus (Thomisidae) is commonly found in alfalfa crops. We studied its predatory preferences on potential insect prey, particularly regarding agroecosystems pests. Two kinds of tests were done under normal laboratory conditions: simultaneous presentation of prey (n= 215) and...

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Detalles Bibliográficos
Autores principales: Cheli, Germán Horacio, Armendano, Andrea Viviana, González, Alda
Formato: Articulo
Lenguaje:Español
Publicado: 2006
Materias:
Ciencias Naturales
Araneae
Thomisidae
Misumenops pallidus
Predation
Prey preference
Alfalfa
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/155941
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-155941
record_format dspace
spelling I19-R120-10915-1559412023-08-05T04:07:28Z http://sedici.unlp.edu.ar/handle/10915/155941 Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa Feeding preferences of the spider Misumenops pallidus (Araneae: Thomisidae) on potential prey insects from alfalfa crops Cheli, Germán Horacio Armendano, Andrea Viviana González, Alda 2006-06 2023-08-04T18:24:16Z es Ciencias Naturales Araneae Thomisidae Misumenops pallidus Predation Prey preference Alfalfa The spider Misumenops pallidus (Thomisidae) is commonly found in alfalfa crops. We studied its predatory preferences on potential insect prey, particularly regarding agroecosystems pests. Two kinds of tests were done under normal laboratory conditions: simultaneous presentation of prey (n= 215) and alternative prey test (n= 45). The spiders preferred insects that were mobile, small, without defensive glands and with thin exoskeletons. According to the amount of prey consumed, we established four predation levels: high (> 55%, on adult Drosophila melanogaster flies); intermediate (30% -55% on the defoliator larvae of Rachiplusia nu and adult heteropterans: Horciasinus argentinus and Halticus spegazzinii); and low (10%- 30% on the chrysomelids Colapsis sp. and Diabrotica speciosa). The pentatomid Piezodorus guildinii, the curculionid Naupactus sp. and the aphid Acyrthosiphom pisum were not accepted as food. Once the spider captured a prey item it did not accept another, independently of prey item species (82% of trials). Centro de Estudios Parasitológicos y de Vectores Articulo Articulo http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) application/pdf 505-513
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Araneae
Thomisidae
Misumenops pallidus
Predation
Prey preference
Alfalfa
spellingShingle Ciencias Naturales
Araneae
Thomisidae
Misumenops pallidus
Predation
Prey preference
Alfalfa
Cheli, Germán Horacio
Armendano, Andrea Viviana
González, Alda
Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
topic_facet Ciencias Naturales
Araneae
Thomisidae
Misumenops pallidus
Predation
Prey preference
Alfalfa
description The spider Misumenops pallidus (Thomisidae) is commonly found in alfalfa crops. We studied its predatory preferences on potential insect prey, particularly regarding agroecosystems pests. Two kinds of tests were done under normal laboratory conditions: simultaneous presentation of prey (n= 215) and alternative prey test (n= 45). The spiders preferred insects that were mobile, small, without defensive glands and with thin exoskeletons. According to the amount of prey consumed, we established four predation levels: high (> 55%, on adult Drosophila melanogaster flies); intermediate (30% -55% on the defoliator larvae of Rachiplusia nu and adult heteropterans: Horciasinus argentinus and Halticus spegazzinii); and low (10%- 30% on the chrysomelids Colapsis sp. and Diabrotica speciosa). The pentatomid Piezodorus guildinii, the curculionid Naupactus sp. and the aphid Acyrthosiphom pisum were not accepted as food. Once the spider captured a prey item it did not accept another, independently of prey item species (82% of trials).
format Articulo
Articulo
author Cheli, Germán Horacio
Armendano, Andrea Viviana
González, Alda
author_facet Cheli, Germán Horacio
Armendano, Andrea Viviana
González, Alda
author_sort Cheli, Germán Horacio
title Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
title_short Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
title_full Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
title_fullStr Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
title_full_unstemmed Preferencia alimentaria de arañas Misumenops pallidus (Araneae: Thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
title_sort preferencia alimentaria de arañas misumenops pallidus (araneae: thomisidae) sobre potenciales insectos presa de cultivos de alfalfa
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/155941
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