Silvana Cardozo's research while affiliated with National University of Salta and other places

Publications (4)

Article
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Successful persistence of dry forests depends on tree regeneration, which depends on a balance of complex biotic interactions. In particular, the relative importance and interactive effects of shrubs and herbivores on tree regeneration are unclear. In a manipulative study, we investigated if thornless shrubs have a direct net effect, an indirect po...
Article
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In arid environments, direct facilitation (microhabitat amelioration) and indirect facilitation (“associational resistance” via protection from herbivory) among plants of different species may act simultaneously. Little is known about their relative effects. One way to disentangle the effects is by evaluating spatial associations. We examined the r...
Article
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Para manejar y conservar una población biológica es necesario conocer las etapas de su ciclo de vida. El quebracho blanco es una especie clave en el ecosistema chaqueño y es necesario emprender estudios relacionados con su producción de semillas. Se estudió el número de semillas fértiles (con embrión) y vanas por fruto (sin embrión) y la relación e...
Article
Full-text available
Los ecosistemas del Chaco argentino vienen siendo perturbados por la actividad humana desde hace décadas, especialmente por la ganadería extensiva y el fuego, que actuando con distinta frecuencia e intensidad modelan el paisaje junto al clima y la fisiografía. Los pastizales del Chaco son colonizados por plantas leñosas y las perturbaciones mencion...

Citations

... Sin embargo, en una segunda instancia, la participación de los grupos 5 y 6 pueden facilitar la densidad de individuos entre ellos, pero sin lograr un gran aporte de carbono acumulado. Ejemplo de estos son las interacciones de procesos de facilitación de recursos entre plantas (Barchuk et al. 2005, Tálamo et al. 2015, micro ambientes aprovechados por otras plantas (i.e., especies tolerantes a la sombra del dosel), o incluso competencia (Brassiolo and Pokorny 2000). ...
... pers.). Also, cattle can alter fruit production and change the spatial distribution and vertical structure of woody plants (Tálamo & Caziani, 2003;Tálamo et al., 2015). However, our results do not support this explanation because we did not find a relationship between foxes' activity index and fruit availability or understory structure (represented by shrubs density). ...
... Secondary forests are defined as sites with > 30 years of selective logging or livestock grazing. Primary forests are defined as forests inside protected areas (López de Casenave et al., 1995;Tálamo and Caziani, 2003;Bonino and Araujo, 2005;Cardozo et al., 2011). Our results are also consistent with Araujo et al. (2008), who suggested that past forest exploitation within ER-Inta is a reflection of the forest's horizontal structure. ...
... Wildfires and flooding are considered major natural disturbances responsible for the Chaco landscape modeling (Bucher, 1982). However, since the last century, fire frequency have has increased due to human activities related to land use and deforestation (Bravo et al., 2010;Cardozo et al., 2011;Tálamo et al., 2012;Torrella et al., 2015;Basualdo et al., 2019). In particular, dry forests are considered an endangered ecosystem with high conservation interest due to endemic species of Schinopsis and Bulnesia (Dinerstein et al., 1995). ...