Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina

A survey of the spider community composition and diversity was carried out in grasslands and woods in three localities: Colonia Pellegrini, Paraje Galarza and Estancia Rincón (Iberá province Reserve). Pit fall traps, leaf litter sifting, foliage beating, hand collecting and sweep nets were used....

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Autores principales: Ávalos, Gilberto, Damborsky, Miryam Pieri, Bar, María Esther, Oscherov, Elena Beatriz, Porcel, Eduardo Adolfo
Formato: Artículo
Lenguaje:Español
Publicado: Universidad de Costa Rica 2022
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Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48643
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id I48-R184-123456789-48643
record_format dspace
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Español
topic Araneae
Woods
Grassland
Diversity
Iberá reserve
Corrientes
Bosque
Pastizal
Diversidad
Reserva Iberá
spellingShingle Araneae
Woods
Grassland
Diversity
Iberá reserve
Corrientes
Bosque
Pastizal
Diversidad
Reserva Iberá
Ávalos, Gilberto
Damborsky, Miryam Pieri
Bar, María Esther
Oscherov, Elena Beatriz
Porcel, Eduardo Adolfo
Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
topic_facet Araneae
Woods
Grassland
Diversity
Iberá reserve
Corrientes
Bosque
Pastizal
Diversidad
Reserva Iberá
description A survey of the spider community composition and diversity was carried out in grasslands and woods in three localities: Colonia Pellegrini, Paraje Galarza and Estancia Rincón (Iberá province Reserve). Pit fall traps, leaf litter sifting, foliage beating, hand collecting and sweep nets were used. Shannon’s diversity index, evenness, Berger-Parker’s dominance index, β and γ diversity were calculated, and a checklist of spider fauna was compiled. Species richness was estimated by Chao 1, Chao 2, first and second order Jack-knife. A total of 4 138 spiders grouped into 150 species from 33 families of Araneomorphae and two species from two families of Mygalomorphae were collected. Five species are new records for Argentina and eleven for Corrientes prov ince. Araneidae was the most abundant family (39.8%), followed by Salticidae (10.9%), Anyphaenidae (7.9%), Tetragnathidae (7.4%), and Lycosidae (5.5%). The other families represented less than 5% of the total catch. The web-builder guild had the highest number of specimens and the highest richness index. The abundance, observed richness, Shannon diversity and evenness indexes were highest in Colonia Pellegrini woodland and Paraje Galarza grassland. Alpha diversity represented 89% of the gamma; the remaining 11% corresponded to β diversity. According to the indexes, between 67% and 97% of the existing spider fauna was represented in the collected specimens from Iberá. Rev. Biol. Trop. 57 (1-2): 339-351. Epub 2009 June 30.
format Artículo
author Ávalos, Gilberto
Damborsky, Miryam Pieri
Bar, María Esther
Oscherov, Elena Beatriz
Porcel, Eduardo Adolfo
author_facet Ávalos, Gilberto
Damborsky, Miryam Pieri
Bar, María Esther
Oscherov, Elena Beatriz
Porcel, Eduardo Adolfo
author_sort Ávalos, Gilberto
title Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
title_short Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
title_full Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
title_fullStr Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
title_full_unstemmed Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina
title_sort composición de la fauna de araneae (arachnida) de la reserva provincial iberá, corrientes, argentina
publisher Universidad de Costa Rica
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48643
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spelling I48-R184-123456789-486432025-03-06T11:09:09Z Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina Composition of the Araneae (Arachnida) fauna of the Provincial Iberá Reserve, Corrientes, Argentina Ávalos, Gilberto Damborsky, Miryam Pieri Bar, María Esther Oscherov, Elena Beatriz Porcel, Eduardo Adolfo Araneae Woods Grassland Diversity Iberá reserve Corrientes Bosque Pastizal Diversidad Reserva Iberá A survey of the spider community composition and diversity was carried out in grasslands and woods in three localities: Colonia Pellegrini, Paraje Galarza and Estancia Rincón (Iberá province Reserve). Pit fall traps, leaf litter sifting, foliage beating, hand collecting and sweep nets were used. Shannon’s diversity index, evenness, Berger-Parker’s dominance index, β and γ diversity were calculated, and a checklist of spider fauna was compiled. Species richness was estimated by Chao 1, Chao 2, first and second order Jack-knife. A total of 4 138 spiders grouped into 150 species from 33 families of Araneomorphae and two species from two families of Mygalomorphae were collected. Five species are new records for Argentina and eleven for Corrientes prov ince. Araneidae was the most abundant family (39.8%), followed by Salticidae (10.9%), Anyphaenidae (7.9%), Tetragnathidae (7.4%), and Lycosidae (5.5%). The other families represented less than 5% of the total catch. The web-builder guild had the highest number of specimens and the highest richness index. The abundance, observed richness, Shannon diversity and evenness indexes were highest in Colonia Pellegrini woodland and Paraje Galarza grassland. Alpha diversity represented 89% of the gamma; the remaining 11% corresponded to β diversity. According to the indexes, between 67% and 97% of the existing spider fauna was represented in the collected specimens from Iberá. Rev. Biol. Trop. 57 (1-2): 339-351. Epub 2009 June 30. Se estudió la composición y diversidad de la comunidad de arañas de la Reserva provincial Iberá, Corrientes, Argentina. Se realizaron capturas en bosque y pastizal en Colonia Pellegrini, Paraje Galarza y Estancia Rincón por medio de las técnicas de muestreo: trampas “pit-fall”, tamizado, golpeteo de follaje, observación directa y red de arrastre. Las arañas se agruparon en gremios y se compiló un inventario. La similitud entre localidades y unidades ambientales se midió con el índice de Jaccard, y se calcularon los índices de diversidad de Shannon, equitabilidad, dominancia de Berger-Parker, y la diversidad beta y gamma. Para estimar la riqueza de especies se utilizó Chao 1, Chao 2, Jackknife 1 y 2. En total se recolectaron 4 138 arañas, se identificaron 33 familias y 150 especies de Araneomorphae, y dos familias y dos especies de Mygalomorphae. Cinco especies son nuevos registros para Argentina y 11 para la provincia de Corrientes. Araneidae fue la familia más abundante (39.8%), seguida por Salticidae (10.9%), Anyphaenidae (7.9%), Tetragnathidae (7.4%), Lycosidae (5.5%), y las restantes familias representaron menos del 5% de la captura total. El gremio de arañas tejedoras de telas orbiculares fue el de mayor abundancia y riqueza de especies. Entre las unidades ambientales, la mayor abundancia, riqueza y diversidad se verificó en el bosque de Colonia Pellegrini y en el pastizal de Paraje Galarza. La diversidad α fue alta, representó el 89% de la diversidad gamma, y la diversidad β constituyó el 11% restante. Según los diferentes índices se capturó entre el 67% y el 97% de las especies que están presentes en la Reserva. 2022-07-04T11:27:56Z 2022-07-04T11:27:56Z 2009-03 Artículo Ávalos, Gilberto, et al., 2009. Composición de la fauna de Araneae (Arachnida) de la Reserva Provincial Iberá, Corrientes, Argentina. Revista de Biología Tropical. Costa Rica: Universidad de Costa Rica, vol. 57, no. 1-2, p. 339-351. ISSN-e 2215-2075. 0034-7744 http://repositorio.unne.edu.ar/handle/123456789/48643 spa openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Universidad de Costa Rica Revista de Biología Tropical, 2009, vol. 57, no. 1-2, p. 339-351.