Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina

A census of spiders was undertaken in winter wheat fields of Buenos Aires province, Argentina, as well as from their margins and from wheat stubble. Spiders were collected weekly over 3 consecutive years using entomological sweeping and pitfall traps. Field margins were the richest and densest habit...

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Autores principales: Armendano, Andrea Viviana, González, Alda
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Biología
Zoología
Araneae
Diversity
Agroecosystems
Natural enemies
Diversidad
Agroecosistemas
Enemigos naturales
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128098
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128098
record_format dspace
spelling I19-R120-10915-1280982023-08-04T18:14:29Z http://sedici.unlp.edu.ar/handle/10915/128098 Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina Araneofauna asociada a cultivos de trigo y hábitats adyacentes en Buenos Aires, Argentina Armendano, Andrea Viviana González, Alda 2011 2021-11-12T14:11:14Z en Biología Zoología Araneae Diversity Agroecosystems Natural enemies Diversidad Agroecosistemas Enemigos naturales A census of spiders was undertaken in winter wheat fields of Buenos Aires province, Argentina, as well as from their margins and from wheat stubble. Spiders were collected weekly over 3 consecutive years using entomological sweeping and pitfall traps. Field margins were the richest and densest habitats (H’= 3.27, J’= 0.82) and registered 52 species from 14 families, while 31 species from 13 families were found in wheat. Thomisidae and Araneidae were the most abundant families in the herbaceous layer of both the margins and the crop, and Lycosidae in the soil litter. In contrast, 17 species from 8 families were recorded from wheat stubble, making it the least diverse habitat surveyed (H’= 1.67, J’= 0.72). These results could be related to repeated disturbance of wheat fields by harvest, tillage and other field work. Furthermore, the similarity observed in the families of both margin and crop communities indicates that colonization of wheat fields is from the adjacent areas. Se realizó un censo de arañas en cultivos de trigo de invierno de la provincia de Buenos Aires, Argentina, así como en sus márgenes y en el rastrojo. Las arañas fueron recolectadas semanalmente con redes entomológicas y trampas de caída durante 3 años consecutivos. El margen del cultivo fue el hábitat más rico y más denso (H’= 3.27, J’= 0,82) y registró un total de 52 especies pertenecientes a 14 familias, mientras que en el cultivo de trigo se encontraron 31 especies pertenecientes a 13 familias. Thomisidae y Araneidae fueron las familias más abundantes en el estrato herbáceo (tanto en los márgenes como en el cultivo) y Lycosidae en el suelo; mientras que en el rastrojo del trigo se registraron 17 especies representantes de 8 familias y fue el hábitat menos diverso (H’= 1.67, J’= 0,72). Estos resultados podrían estar relacionados con el disturbio repetido, debidos a la cosecha, la labranza y otros trabajos de campo. Por otra parte, la similitud observada entre las familias de ambas comunidades del margen y del cultivo indicaría que el proceso de colonización se iniciaría en las áreas adyacentes. Centro de Estudios Parasitológicos y de Vectores Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf 1176-1182
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Zoología
Araneae
Diversity
Agroecosystems
Natural enemies
Diversidad
Agroecosistemas
Enemigos naturales
spellingShingle Biología
Zoología
Araneae
Diversity
Agroecosystems
Natural enemies
Diversidad
Agroecosistemas
Enemigos naturales
Armendano, Andrea Viviana
González, Alda
Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
topic_facet Biología
Zoología
Araneae
Diversity
Agroecosystems
Natural enemies
Diversidad
Agroecosistemas
Enemigos naturales
description A census of spiders was undertaken in winter wheat fields of Buenos Aires province, Argentina, as well as from their margins and from wheat stubble. Spiders were collected weekly over 3 consecutive years using entomological sweeping and pitfall traps. Field margins were the richest and densest habitats (H’= 3.27, J’= 0.82) and registered 52 species from 14 families, while 31 species from 13 families were found in wheat. Thomisidae and Araneidae were the most abundant families in the herbaceous layer of both the margins and the crop, and Lycosidae in the soil litter. In contrast, 17 species from 8 families were recorded from wheat stubble, making it the least diverse habitat surveyed (H’= 1.67, J’= 0.72). These results could be related to repeated disturbance of wheat fields by harvest, tillage and other field work. Furthermore, the similarity observed in the families of both margin and crop communities indicates that colonization of wheat fields is from the adjacent areas.
format Articulo
Articulo
author Armendano, Andrea Viviana
González, Alda
author_facet Armendano, Andrea Viviana
González, Alda
author_sort Armendano, Andrea Viviana
title Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
title_short Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
title_full Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
title_fullStr Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
title_full_unstemmed Spider fauna associated with wheat crops and adjacent habitats in Buenos Aires, Argentina
title_sort spider fauna associated with wheat crops and adjacent habitats in buenos aires, argentina
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/128098
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