The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil
Grazing and fire, used in pasture regeneration practices, are inter-related activities in livestock management. Both activities affect habitat characteristics by changing the structure of the herbaceous and shrubby vegetation, reducing their biomass and litter cover. This study evaluated the effect...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Zoologia
2010-08-01
|
| Series: | Zoologia (Curitiba) |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000400005 |
| _version_ | 1797966819461431296 |
|---|---|
| author | Ezequiel Pedó Thales R. O. de Freitas Sandra M. Hartz |
| author_facet | Ezequiel Pedó Thales R. O. de Freitas Sandra M. Hartz |
| author_sort | Ezequiel Pedó |
| collection | DOAJ |
| description | Grazing and fire, used in pasture regeneration practices, are inter-related activities in livestock management. Both activities affect habitat characteristics by changing the structure of the herbaceous and shrubby vegetation, reducing their biomass and litter cover. This study evaluated the effect of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria forest ecotones in southern Brazil. We compared four areas frequently affected by livestock management with four protected areas. Surveys were carried out in four sampling periods, one in each season of 2004. We captured a total of 325 individuals from 12 species of rodents - Akodon montensis Thomas, 1913, Akodon paranaensis Christoff, Fagundes, Sbalqueiro, Mattevi e Yonenaga-Yassuda, 2000, Akodon sp. 1, Akodon sp. 2 (2n = 34), Brucepattersonius iheringi (Thomas, 1896), Delomys dorsalis (Hensel, 1872), Oligoryzomys flavescens (Waterhouse, 1837), Oligoryzomys nigripes (Olfers, 1818), Oxymycterus nasutus (Waterhouse, 1837), Scapteromys sp. (2n = 34), Sooretamys angouya (Fischer, 1814) and Thaptomys nigrita (Lichtenstein, 1829) - and two species of marsupials - Monodelphis dimidiata (Wagner, 1847) and Philander frenatus (Olfers, 1818) -, in a total effective effort of 5254 traps.day-1. The abundance, biomass and diversity of non-flying small mammals were significantly higher in the protected areas than in those affected by fire and livestock grazing. Species strictly associated with grassland habitats were not found in the impacted area. These results indicate that the presence of herds of domestic ungulates negatively affect the assemblage of non-flying small mammals in grassland and Araucaria forest areas in southern Brazil. |
| first_indexed | 2024-04-11T02:21:22Z |
| format | Article |
| id | doaj.art-40198545ad9b4bc9a6913e8b8c0e532f |
| institution | Directory Open Access Journal |
| issn | 1984-4670 1984-4689 |
| language | English |
| last_indexed | 2024-04-11T02:21:22Z |
| publishDate | 2010-08-01 |
| publisher | Sociedade Brasileira de Zoologia |
| record_format | Article |
| series | Zoologia (Curitiba) |
| spelling | doaj.art-40198545ad9b4bc9a6913e8b8c0e532f2023-01-02T23:33:49ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46701984-46892010-08-0127453354010.1590/S1984-46702010000400005The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern BrazilEzequiel PedóThales R. O. de FreitasSandra M. HartzGrazing and fire, used in pasture regeneration practices, are inter-related activities in livestock management. Both activities affect habitat characteristics by changing the structure of the herbaceous and shrubby vegetation, reducing their biomass and litter cover. This study evaluated the effect of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria forest ecotones in southern Brazil. We compared four areas frequently affected by livestock management with four protected areas. Surveys were carried out in four sampling periods, one in each season of 2004. We captured a total of 325 individuals from 12 species of rodents - Akodon montensis Thomas, 1913, Akodon paranaensis Christoff, Fagundes, Sbalqueiro, Mattevi e Yonenaga-Yassuda, 2000, Akodon sp. 1, Akodon sp. 2 (2n = 34), Brucepattersonius iheringi (Thomas, 1896), Delomys dorsalis (Hensel, 1872), Oligoryzomys flavescens (Waterhouse, 1837), Oligoryzomys nigripes (Olfers, 1818), Oxymycterus nasutus (Waterhouse, 1837), Scapteromys sp. (2n = 34), Sooretamys angouya (Fischer, 1814) and Thaptomys nigrita (Lichtenstein, 1829) - and two species of marsupials - Monodelphis dimidiata (Wagner, 1847) and Philander frenatus (Olfers, 1818) -, in a total effective effort of 5254 traps.day-1. The abundance, biomass and diversity of non-flying small mammals were significantly higher in the protected areas than in those affected by fire and livestock grazing. Species strictly associated with grassland habitats were not found in the impacted area. These results indicate that the presence of herds of domestic ungulates negatively affect the assemblage of non-flying small mammals in grassland and Araucaria forest areas in southern Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000400005Atlantic ForestCamposDidelphimorphiahabitat lossRodentia |
| spellingShingle | Ezequiel Pedó Thales R. O. de Freitas Sandra M. Hartz The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil Zoologia (Curitiba) Atlantic Forest Campos Didelphimorphia habitat loss Rodentia |
| title | The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil |
| title_full | The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil |
| title_fullStr | The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil |
| title_full_unstemmed | The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil |
| title_short | The influence of fire and livestock grazing on the assemblage of non-flying small mammals in grassland-Araucaria Forest ecotones, southern Brazil |
| title_sort | influence of fire and livestock grazing on the assemblage of non flying small mammals in grassland araucaria forest ecotones southern brazil |
| topic | Atlantic Forest Campos Didelphimorphia habitat loss Rodentia |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000400005 |
| work_keys_str_mv | AT ezequielpedo theinfluenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil AT thalesrodefreitas theinfluenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil AT sandramhartz theinfluenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil AT ezequielpedo influenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil AT thalesrodefreitas influenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil AT sandramhartz influenceoffireandlivestockgrazingontheassemblageofnonflyingsmallmammalsingrasslandaraucariaforestecotonessouthernbrazil |