Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina
The Flooding Pampas is the most important livestock region of Argentina, but is a region where replacement of originally natural, perennial tussock grasses by pasture species is changing the heterogeneity of the grassland system. We evaluated the response of grassland bird assemblages of the Floodin...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v115_n3_p270_Agra http://hdl.handle.net/20.500.12110/paper_01584197_v115_n3_p270_Agra |
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paper:paper_01584197_v115_n3_p270_Agra2023-06-08T15:13:22Z Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina Bilenca, David Norberto Codesido, Mariano agroecosystem grassland birds habitat management South America. abundance agricultural ecosystem conservation status flooding grassland habitat management habitat structure habitat type heterogeneity legume passerine pasture raptor species richness vegetation structure wader Argentina Pampas Asthenes hudsoni Athene Athene cunicularia Aves Lotus tenuis Poaceae Spartonoica maluroides Troglodytinae Vanellus Vanellus chilensis The Flooding Pampas is the most important livestock region of Argentina, but is a region where replacement of originally natural, perennial tussock grasses by pasture species is changing the heterogeneity of the grassland system. We evaluated the response of grassland bird assemblages of the Flooding Pampas to planting of Lotus tenuis (Lotus) pasture, which mainly modifies vegetation structure by reducing vertical heterogeneity. Species richness and abundance of birds were compared between fields of Lotus pasture and semi-natural grasslands. Avian species richness and abundance were both greater in semi-natural grassland than in Lotus pasture. When grouped by nesting habits (grassland specialists, generalists), species richness and abundance of grassland specialists was greater in semi-natural grassland, whereas richness and abundance of generalist species was greater in Lotus pasture. An indicator-species analysis showed that five grassland birds were closely linked to semi-natural grassland vegetation, with two of those species-Hudson's Canastero (Asthenes hudsoni) and Bay-capped Wren-Spinetail (Spartonoica maluroides)-of conservation concern.1 In contrast, generalist species, such as Southern Lapwings (Vanellus chilensis) and Burrowing Owls (Athene cunicularia), were associated with Lotus pasture. Planting of Lotus pasture has negative effects on species that naturally occur in tussock grassland. Grassland management methods, such as intercropping and rotational grazing, could help reconcile the effects of livestock production and the conservation grassland bird conservation in the Flooding Pampas. © 2015 BirdLife Australia. Fil:Bilenca, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Codesido, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v115_n3_p270_Agra http://hdl.handle.net/20.500.12110/paper_01584197_v115_n3_p270_Agra |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
agroecosystem grassland birds habitat management South America. abundance agricultural ecosystem conservation status flooding grassland habitat management habitat structure habitat type heterogeneity legume passerine pasture raptor species richness vegetation structure wader Argentina Pampas Asthenes hudsoni Athene Athene cunicularia Aves Lotus tenuis Poaceae Spartonoica maluroides Troglodytinae Vanellus Vanellus chilensis |
| spellingShingle |
agroecosystem grassland birds habitat management South America. abundance agricultural ecosystem conservation status flooding grassland habitat management habitat structure habitat type heterogeneity legume passerine pasture raptor species richness vegetation structure wader Argentina Pampas Asthenes hudsoni Athene Athene cunicularia Aves Lotus tenuis Poaceae Spartonoica maluroides Troglodytinae Vanellus Vanellus chilensis Bilenca, David Norberto Codesido, Mariano Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| topic_facet |
agroecosystem grassland birds habitat management South America. abundance agricultural ecosystem conservation status flooding grassland habitat management habitat structure habitat type heterogeneity legume passerine pasture raptor species richness vegetation structure wader Argentina Pampas Asthenes hudsoni Athene Athene cunicularia Aves Lotus tenuis Poaceae Spartonoica maluroides Troglodytinae Vanellus Vanellus chilensis |
| description |
The Flooding Pampas is the most important livestock region of Argentina, but is a region where replacement of originally natural, perennial tussock grasses by pasture species is changing the heterogeneity of the grassland system. We evaluated the response of grassland bird assemblages of the Flooding Pampas to planting of Lotus tenuis (Lotus) pasture, which mainly modifies vegetation structure by reducing vertical heterogeneity. Species richness and abundance of birds were compared between fields of Lotus pasture and semi-natural grasslands. Avian species richness and abundance were both greater in semi-natural grassland than in Lotus pasture. When grouped by nesting habits (grassland specialists, generalists), species richness and abundance of grassland specialists was greater in semi-natural grassland, whereas richness and abundance of generalist species was greater in Lotus pasture. An indicator-species analysis showed that five grassland birds were closely linked to semi-natural grassland vegetation, with two of those species-Hudson's Canastero (Asthenes hudsoni) and Bay-capped Wren-Spinetail (Spartonoica maluroides)-of conservation concern.1 In contrast, generalist species, such as Southern Lapwings (Vanellus chilensis) and Burrowing Owls (Athene cunicularia), were associated with Lotus pasture. Planting of Lotus pasture has negative effects on species that naturally occur in tussock grassland. Grassland management methods, such as intercropping and rotational grazing, could help reconcile the effects of livestock production and the conservation grassland bird conservation in the Flooding Pampas. © 2015 BirdLife Australia. |
| author |
Bilenca, David Norberto Codesido, Mariano |
| author_facet |
Bilenca, David Norberto Codesido, Mariano |
| author_sort |
Bilenca, David Norberto |
| title |
Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| title_short |
Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| title_full |
Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| title_fullStr |
Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| title_full_unstemmed |
Responses of birds to planting of Lotus tenuis pasture in the Flooding Pampas, Argentina |
| title_sort |
responses of birds to planting of lotus tenuis pasture in the flooding pampas, argentina |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v115_n3_p270_Agra http://hdl.handle.net/20.500.12110/paper_01584197_v115_n3_p270_Agra |
| work_keys_str_mv |
AT bilencadavidnorberto responsesofbirdstoplantingoflotustenuispastureinthefloodingpampasargentina AT codesidomariano responsesofbirdstoplantingoflotustenuispastureinthefloodingpampasargentina |
| _version_ |
1768544404741554176 |