Many arid grassland communities are changing from grass dominance to shrub dominance, but the mechanisms involved in this conversion process are not completely understood. Aeolian processes likely contribute to this conversion from grassland to shrubland. The purpose of this research is to provide information regarding how vegetation changes occur in an arid grassland as a result of aeolian sed...

Our objective was to determine if long-term increases in precipitation can maintain grasslands susceptible to desertification, and initiate a reversal of historic regime shifts on desertified shrublands. Perennial grass production and species richness in a multi-year wet period were hypothesized to be greater than expected based on precipitation in a sequence of dry years. These responses were ...

background and objectives: due to the importance of finding of new antibacterial agents, the antibacterial properties of prosopis cineraria aerial parts were investigated using a bioassay guided fractionation scheme. materials and methods: the organic extract was prepared via maceration in methanol, followed by the fractionation using n-hexane and ethyl acetate. the mics of fractions were deter...

Los bosques nativos representan una fuente importante de bienes y servicios que son empleados, tanto para consumo humano como animal por sus habitantes. En Santiago del Estero, Argentina, estos ofrecen, entre otros productos, frutos especies arbóreas, con importancia económica quienes los aprovechan. El objetivo estudio fue indagar acerca las ventajas limitaciones cuentan productores en el dese...

Abstract Woody species have been introduced in many parts of the world to provide economic benefits, but some those are now among worst invaders, causing widespread and environmental damage. Management woody restore original ecosystem services, such as biodiverse grassland that can fodder sequester carbon, needed limit impacts alien species. However, best management methods, i.e., most economic...