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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Detalles Bibliográficos
Autores principales: Armendano, Andrea, 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
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
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
González, Alda
author_facet Armendano, Andrea
González, Alda
author_sort Armendano, Andrea
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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