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| MADANES,NORA; FISCHER,SYLVIA; VICARI,RICARDO. |
| We studied the effects of fire on the structural attributes of a Spartina densiflora salt marsh. The study was carried out from November 1995, spring (N95S) to December 1996, late spring (D96LS). In November 1995, we installed 37 permanent plots. In January 1996, 32 of the plots were accidentally burned (B) and the remaining were not burned (NB). Vegetation on each plot was sampled seasonally, plant species were identified and cover-abundance was estimated. We analyzed and compared seasonal variations in plant species richness, diversity, composition and cover-abundance in burned and non-burned plots. In addition, we analyzed variations in biological types (forbs, graminoids) and types of life cycles (annuals, perennials) in B and NB plots before and after... |
| Tipo: Journal article |
Palavras-chave: Spartina densiflora; Salt-marsh; Fire; Community. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000200005 |
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| MADANES,NORA; QUINTANA,RUBÉN D; BIONDINI,MARIELA; LOPONTE,DANIEL. |
| In the present study we assess the contribution of C3, C4 and intermediate C3-C4 plant species to the diet of both native (Hydrochoerus hydrochaeris, Rhea americana and Logostomus maximus) and introduced (cattle) herbivore species and the abundance of these photosynthetic plant types in different environments of the lower section of the Paraná Basin, Argentina, with similar climate but different hydrological regimes. Data of current plants species and their photosynthetic pathways, both form vegetation and the diet, were compiled from literature. The analysis of annual diets conducted in terms of photosynthetic types showed that the feeding patterns of native as well introduced herbivores varied both spatially and temporally. At each site, the analysis of... |
| Tipo: Journal article |
Palavras-chave: Herbivory; Neotropical ecology; Photosynthetic plants types. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000200011 |
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