Temas
Mostrando ítems 1-6 de 6
-
Diversidad y composición de especies de aves en un gradiente bosque-arbustal-sabana del Chaco Semiárido, Argentina
(Sociedad de Ornitología Neotropical, 2016)El paisaje primitivo predominante de la región chaqueña de Argentina, Paraguay, Bolivia y Brasil fue un mosaico de bosques alternando con pastizales y sabanas. Regionalmente el sobrepastoreo produjo el reemplazo de las ... -
Efectos de la herbivoría doméstica sobre el enriquecimiento leñoso de las sabanas abiertas del centro sur de la provincia de Corrientes
(Facultad de Agronomía, Universidad de Buenos Aires, 2011)Los ecosistemas de sabanas se caracterizan por la co-dominancia de un estrato herbáceo continuo y otro leñoso discontinuo. En la región Centro-sur de la Provincia de Corrientes, la creciente lignificación de las sabanas ... -
Grazing and neighborhood interactions limit woody encroachment in wet subtropical savannas
(2014-12)Woody encroachment in savannas is a worldwide concern, and there is growing consensus that anthropogenic activities play a central role in changing tree – grass interactions. We evaluated the influence of livestock grazing ... -
Management of grassland/savannas encroached by woody plants in South American Semiarid Chaco: Ecological restoration vs. African grasses introduction
(Asociación Argentina de Ecología, 2023-08)In Semiarid Chaco, two management approaches for woody plant-encroached grassland/savannas were evaluated: ecological restoration and the African grass introduction. An experiment with five treatments was carried out: 1) ... -
Occurrence patterns of the endangered Yellow Cardinal Gubernatrix cristata in north-east Argentina: only in savannahs and at sites away from roads
(BirdLife International, 2023)The endangered Yellow Cardinal Gubernatrix cristata is under pressure from habitat loss and from capturing for the cage bird trade. In north-east Argentina it is known to be associated with the Espinal ecoregion, but no ... -
The dynamics of three shrub species in a fire-prone temperate savanna: the interplay between the seed bank, seed rain and fire regime
(Springer, 2013-01)A model was developed to assess how the seed rain and fire regime affect seed bank dynamics and seedling establishment of three native shrub species (Acanthostyles buniifolius, Baccharis pingraea and Baccharis dracunculifolia) ...