Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina

Over the last decades there has been an increasing interest in the use of natural enemies to control pest insects, including spiders. We studied a spider community in Argentina by sampling every two weeks during 2004-2006 in one-hectare lots. Soil stratum spiders were collected using nets and pitfal...

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Autores principales: Armendano, Andrea Viviana, González, Alda
Formato: Articulo
Lenguaje:Español
Publicado: 2010
Materias:
Ciencias Naturales
araneae
alfalfa
agroecosystems
natural enemies
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/155943
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-155943
record_format dspace
spelling I19-R120-10915-1559432023-08-05T04:07:25Z http://sedici.unlp.edu.ar/handle/10915/155943 Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina Spider community (Arachnida, Araneae) of alfalfa crops (Medicago sativa) in Buenos Aires, Argentina Armendano, Andrea Viviana González, Alda 2010-06 2023-08-04T18:29:06Z es Ciencias Naturales araneae alfalfa agroecosystems natural enemies Over the last decades there has been an increasing interest in the use of natural enemies to control pest insects, including spiders. We studied a spider community in Argentina by sampling every two weeks during 2004-2006 in one-hectare lots. Soil stratum spiders were collected using nets and pitfall traps. A total of 6229 specimens were collected (15 families and 50 species). Seven families were found in the herbal stratum, the most abundant were Thomisidae (n=2012, 32.30%), Araneidae (n=1516, 24.33%) and Oxyopidae (n=604, 9.70%). The soil had 14 families, mainly: Lycosidae (n=629, 10.10%) and Linyphiidae (n=427, 6.85%). Hunting spiders predominated: ambushers (32.99 %); stalkers (11.77%) and ground-runners (10.84%) were less common. The most abundant web building spiders were the orb weavers (27.56%). The diversity indexes were: H´=2.97, Dsp=0.11 and J=0.79, evidencing a moderately diverse spider community with predominance of Misumenops pallidus, Oxyopes salticus, Lycosa poliostoma and L. erythrognatha. The spiders were present throughout the phenological development of the crop with abundance peaks in spring and summer. 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 757-767
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
araneae
alfalfa
agroecosystems
natural enemies
spellingShingle Ciencias Naturales
araneae
alfalfa
agroecosystems
natural enemies
Armendano, Andrea Viviana
González, Alda
Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
topic_facet Ciencias Naturales
araneae
alfalfa
agroecosystems
natural enemies
description Over the last decades there has been an increasing interest in the use of natural enemies to control pest insects, including spiders. We studied a spider community in Argentina by sampling every two weeks during 2004-2006 in one-hectare lots. Soil stratum spiders were collected using nets and pitfall traps. A total of 6229 specimens were collected (15 families and 50 species). Seven families were found in the herbal stratum, the most abundant were Thomisidae (n=2012, 32.30%), Araneidae (n=1516, 24.33%) and Oxyopidae (n=604, 9.70%). The soil had 14 families, mainly: Lycosidae (n=629, 10.10%) and Linyphiidae (n=427, 6.85%). Hunting spiders predominated: ambushers (32.99 %); stalkers (11.77%) and ground-runners (10.84%) were less common. The most abundant web building spiders were the orb weavers (27.56%). The diversity indexes were: H´=2.97, Dsp=0.11 and J=0.79, evidencing a moderately diverse spider community with predominance of Misumenops pallidus, Oxyopes salticus, Lycosa poliostoma and L. erythrognatha. The spiders were present throughout the phenological development of the crop with abundance peaks in spring and summer.
format Articulo
Articulo
author Armendano, Andrea Viviana
González, Alda
author_facet Armendano, Andrea Viviana
González, Alda
author_sort Armendano, Andrea Viviana
title Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
title_short Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
title_full Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
title_fullStr Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
title_full_unstemmed Comunidad de arañas (Arachnida, Araneae) del cultivo de alfalfa (Medicago sativa) en Buenos Aires, Argentina
title_sort comunidad de arañas (arachnida, araneae) del cultivo de alfalfa (medicago sativa) en buenos aires, argentina
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/155943
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AT gonzalezalda comunidaddearanasarachnidaaraneaedelcultivodealfalfamedicagosativaenbuenosairesargentina
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