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, D.N., Kravetz, F.O.
Formato:	JOUR
Materias:	arable field grassland rodent community species diversity Argentina Pampa Akodon Akodon azarae Calomys Mus Oxymycterus Rodentia
Acceso en línea:	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	todo:paper_03275477_v5_n1_p21_Bilenca
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spelling	todo:paper_03275477_v5_n1_p21_Bilenca2023-10-03T15:24:55Z Patterns of species abundance in Pampean communities of small rodents Bilenca, D.N. Kravetz, F.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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, D.N. Kravetz, F.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
format	JOUR
author	Bilenca, D.N. Kravetz, F.O.
author_facet	Bilenca, D.N. Kravetz, F.O.
author_sort	Bilenca, D.N.
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
url	http://hdl.handle.net/20.500.12110/paper_03275477_v5_n1_p21_Bilenca
work_keys_str_mv	AT bilencadn patternsofspeciesabundanceinpampeancommunitiesofsmallrodents AT kravetzfo patternsofspeciesabundanceinpampeancommunitiesofsmallrodents
_version_	1807318682932609024

Patterns of species abundance in Pampean communities of small rodents

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