Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina

A study was conducted to describe the major features of geographical and temporal variation in the diversity of grassland grasshopper species (Orthoptera: Acridoidea) in different sites of the Pampas, Argentina. Species richness and relative abundance were assessed at 12 sites in eastern La Pampa an...

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Autores principales: Cigliano, María Marta, Wysiecki, María Laura de, Lange, Carlos Ernesto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Ciencias Naturales
Acridoidea
Diversity
Grasshoppers
Orthoptera
Pampas grasslands
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83475
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83475
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Acridoidea
Diversity
Grasshoppers
Orthoptera
Pampas grasslands
spellingShingle Ciencias Naturales
Acridoidea
Diversity
Grasshoppers
Orthoptera
Pampas grasslands
Cigliano, María Marta
Wysiecki, María Laura de
Lange, Carlos Ernesto
Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
topic_facet Ciencias Naturales
Acridoidea
Diversity
Grasshoppers
Orthoptera
Pampas grasslands
description A study was conducted to describe the major features of geographical and temporal variation in the diversity of grassland grasshopper species (Orthoptera: Acridoidea) in different sites of the Pampas, Argentina. Species richness and relative abundance were assessed at 12 sites in eastern La Pampa and western Buenos Aires provinces, from 1994 through 1999. Mean species richness at the regional level was 10, and 34 grasshopper species were collected throughout of the study. Comparison with grasshopper species diversity from the Great Plains of North America is discussed. An evaluation of the proportions of species in each of the three distribution groups (broad, intermediate and narrow) revealed that, over all sites, broadly distributed species made up 14.7% of species composition and intermediately and narrowly distributed species made up 26.5% and 58.8%, respectively. The three top-ranked species in the studied sites were Dichroplus elongatus, D. pratensis and Staurorhectus longicornis. Results showed that, contrary to what was expected, one of the widely distributed species in the region (i.e. Baeacris punctulatus) does not always constitute one of the most abundant species. Finally, the loss of one of the historically most common species in the Pampas, D. maculipennis, is also discussed.
format Articulo
Articulo
author Cigliano, María Marta
Wysiecki, María Laura de
Lange, Carlos Ernesto
author_facet Cigliano, María Marta
Wysiecki, María Laura de
Lange, Carlos Ernesto
author_sort Cigliano, María Marta
title Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
title_short Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
title_full Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
title_fullStr Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
title_full_unstemmed Grasshopper (Orthoptera: Acridoidea) species diversity in the Pampas, Argentina
title_sort grasshopper (orthoptera: acridoidea) species diversity in the pampas, argentina
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/83475
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AT wysieckimarialaurade grasshopperorthopteraacridoideaspeciesdiversityinthepampasargentina
AT langecarlosernesto grasshopperorthopteraacridoideaspeciesdiversityinthepampasargentina
bdutipo_str Repositorios
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