Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas

Here, we characterize and compare rodent assemblages from crop fields and rangelands of the 4 Pampa districts included in Buenos Aires province, Argentina, to analyze the role of regional context, land use, and vegetation structure in determining the structure of rodent assemblages at the plot scale...

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Autores principales: Fischer, C.M.G., Cavia, R., Picasso, P., Bilenca, D.
Formato: JOUR
Materias:
Argentina
farmland biodiversity
land use
Pampas
seasonality
small mammals
abundance
agricultural ecosystem
agricultural land
biodiversity
community structure
generalist
rangeland
rodent
small mammal
specialist
vegetation structure
Buenos Aires [Argentina]
Akodon azarae
Calomys laucha
Mammalia
Mus musculus
Oxymycterus rufus
Rodentia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222372_v98_n6_p1760_Fischer
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00222372_v98_n6_p1760_Fischer
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spelling todo:paper_00222372_v98_n6_p1760_Fischer2023-10-03T14:28:53Z Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas Fischer, C.M.G. Cavia, R. Picasso, P. Bilenca, D. Argentina farmland biodiversity land use Pampas seasonality small mammals abundance agricultural ecosystem agricultural land biodiversity community structure generalist land use rangeland rodent seasonality small mammal specialist vegetation structure Argentina Buenos Aires [Argentina] Pampas Akodon azarae Calomys laucha Mammalia Mus musculus Oxymycterus rufus Rodentia Here, we characterize and compare rodent assemblages from crop fields and rangelands of the 4 Pampa districts included in Buenos Aires province, Argentina, to analyze the role of regional context, land use, and vegetation structure in determining the structure of rodent assemblages at the plot scale. Habitat generalist species (Calomys laucha and Mus musculus) tended to be more abundant in crop fields, whereas habitat specialists (Akodon azarae and Oxymycterus rufus) tended to be more abundant in rangelands. However, the degree of spatial segregation between habitat generalists and specialists and the associations between particular rodent species and land use differed among districts. The abundance of the dominant species (C. laucha and A. azarae) was positively associated with vegetation height. We also found a positive association between the abundance of the dominant species in a certain land use and the representation of that land use in the Pampa district, which suggests an effect of the regional context on local assemblages. Our results show that the structure of the rodent assemblage in a certain plot is the result of the interaction between the district the plot is in and the land use (and management) it is under. Future studies could shed light to the mechanisms behind the district effect observed in this study. © 2017 American Society of Mammalogists. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222372_v98_n6_p1760_Fischer
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
farmland biodiversity
land use
Pampas
seasonality
small mammals
abundance
agricultural ecosystem
agricultural land
biodiversity
community structure
generalist
land use
rangeland
rodent
seasonality
small mammal
specialist
vegetation structure
Argentina
Buenos Aires [Argentina]
Pampas
Akodon azarae
Calomys laucha
Mammalia
Mus musculus
Oxymycterus rufus
Rodentia
spellingShingle Argentina
farmland biodiversity
land use
Pampas
seasonality
small mammals
abundance
agricultural ecosystem
agricultural land
biodiversity
community structure
generalist
land use
rangeland
rodent
seasonality
small mammal
specialist
vegetation structure
Argentina
Buenos Aires [Argentina]
Pampas
Akodon azarae
Calomys laucha
Mammalia
Mus musculus
Oxymycterus rufus
Rodentia
Fischer, C.M.G.
Cavia, R.
Picasso, P.
Bilenca, D.
Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
topic_facet Argentina
farmland biodiversity
land use
Pampas
seasonality
small mammals
abundance
agricultural ecosystem
agricultural land
biodiversity
community structure
generalist
land use
rangeland
rodent
seasonality
small mammal
specialist
vegetation structure
Argentina
Buenos Aires [Argentina]
Pampas
Akodon azarae
Calomys laucha
Mammalia
Mus musculus
Oxymycterus rufus
Rodentia
description Here, we characterize and compare rodent assemblages from crop fields and rangelands of the 4 Pampa districts included in Buenos Aires province, Argentina, to analyze the role of regional context, land use, and vegetation structure in determining the structure of rodent assemblages at the plot scale. Habitat generalist species (Calomys laucha and Mus musculus) tended to be more abundant in crop fields, whereas habitat specialists (Akodon azarae and Oxymycterus rufus) tended to be more abundant in rangelands. However, the degree of spatial segregation between habitat generalists and specialists and the associations between particular rodent species and land use differed among districts. The abundance of the dominant species (C. laucha and A. azarae) was positively associated with vegetation height. We also found a positive association between the abundance of the dominant species in a certain land use and the representation of that land use in the Pampa district, which suggests an effect of the regional context on local assemblages. Our results show that the structure of the rodent assemblage in a certain plot is the result of the interaction between the district the plot is in and the land use (and management) it is under. Future studies could shed light to the mechanisms behind the district effect observed in this study. © 2017 American Society of Mammalogists.
format JOUR
author Fischer, C.M.G.
Cavia, R.
Picasso, P.
Bilenca, D.
author_facet Fischer, C.M.G.
Cavia, R.
Picasso, P.
Bilenca, D.
author_sort Fischer, C.M.G.
title Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
title_short Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
title_full Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
title_fullStr Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
title_full_unstemmed Regional and local determinants of rodent assemblages in agroecosystems of the Argentine Pampas
title_sort regional and local determinants of rodent assemblages in agroecosystems of the argentine pampas
url http://hdl.handle.net/20.500.12110/paper_00222372_v98_n6_p1760_Fischer
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AT caviar regionalandlocaldeterminantsofrodentassemblagesinagroecosystemsoftheargentinepampas
AT picassop regionalandlocaldeterminantsofrodentassemblagesinagroecosystemsoftheargentinepampas
AT bilencad regionalandlocaldeterminantsofrodentassemblagesinagroecosystemsoftheargentinepampas
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