Patterns of species abundance in Pampean communities of small rodents

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The composition of eight small-rodent communities in the Pampean region of central Argentina was studied in two different habitats. Akodon azarae was the most abundant species in seven communities. Species diversity and evenness were higher in field borders than in grasslands. Borders had higher pro...

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Detalles Bibliográficos
Autores principales:	Bilenca, David Norberto, Kravetz, Fernando O.
Publicado:	1995
Materias:	arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Calomys Mus Oxymycterus Rodentia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v5_n1_p21_Bilenca http://hdl.handle.net/20.500.12110/paper_03275477_v5_n1_p21_Bilenca
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03275477_v5_n1_p21_Bilenca
record_format	dspace
spelling	paper:paper_03275477_v5_n1_p21_Bilenca2023-06-08T15:33:24Z Patterns of species abundance in Pampean communities of small rodents Bilenca, David Norberto Kravetz, Fernando O. arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Akodon azarae Calomys Calomys Mus Mus Oxymycterus Oxymycterus Rodentia The composition of eight small-rodent communities in the Pampean region of central Argentina was studied in two different habitats. Akodon azarae was the most abundant species in seven communities. Species diversity and evenness were higher in field borders than in grasslands. Borders had higher proportion of Mus and Calomys and lower proportion of Akodon and Oxymycterus than grasslands. The data were fitted to species-abundance patterns expected according to the "broken stick' model (BS), and to the "geometric series' model. In seven of eight cases, BS was rejected because the communities had a stronger hierarchical structure than predicted by the model. Several interpretations for this are offered. The present proportion of Calomys spp. in the agroecosystems probably exceeds its original proportion in Pampean grasslands. -from English summary Fil:Bilenca, D.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kravetz, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v5_n1_p21_Bilenca http://hdl.handle.net/20.500.12110/paper_03275477_v5_n1_p21_Bilenca
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Akodon azarae Calomys Calomys Mus Mus Oxymycterus Oxymycterus Rodentia
spellingShingle	arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Akodon azarae Calomys Calomys Mus Mus Oxymycterus Oxymycterus Rodentia Bilenca, David Norberto Kravetz, Fernando O. Patterns of species abundance in Pampean communities of small rodents
topic_facet	arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Akodon azarae Calomys Calomys Mus Mus Oxymycterus Oxymycterus Rodentia
description	The composition of eight small-rodent communities in the Pampean region of central Argentina was studied in two different habitats. Akodon azarae was the most abundant species in seven communities. Species diversity and evenness were higher in field borders than in grasslands. Borders had higher proportion of Mus and Calomys and lower proportion of Akodon and Oxymycterus than grasslands. The data were fitted to species-abundance patterns expected according to the "broken stick' model (BS), and to the "geometric series' model. In seven of eight cases, BS was rejected because the communities had a stronger hierarchical structure than predicted by the model. Several interpretations for this are offered. The present proportion of Calomys spp. in the agroecosystems probably exceeds its original proportion in Pampean grasslands. -from English summary
author	Bilenca, David Norberto Kravetz, Fernando O.
author_facet	Bilenca, David Norberto Kravetz, Fernando O.
author_sort	Bilenca, David Norberto
title	Patterns of species abundance in Pampean communities of small rodents
title_short	Patterns of species abundance in Pampean communities of small rodents
title_full	Patterns of species abundance in Pampean communities of small rodents
title_fullStr	Patterns of species abundance in Pampean communities of small rodents
title_full_unstemmed	Patterns of species abundance in Pampean communities of small rodents
title_sort	patterns of species abundance in pampean communities of small rodents
publishDate	1995
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v5_n1_p21_Bilenca http://hdl.handle.net/20.500.12110/paper_03275477_v5_n1_p21_Bilenca
work_keys_str_mv	AT bilencadavidnorberto patternsofspeciesabundanceinpampeancommunitiesofsmallrodents AT kravetzfernandoo patternsofspeciesabundanceinpampeancommunitiesofsmallrodents
_version_	1768543562240098304

Patterns of species abundance in Pampean communities of small rodents

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