Increasing shrub density hinders cattle raising in central Argentina rangelands. While roller-chopping and hand-cutting are used to remove shrubs make land accessible for grazing, studies on the effects of these practices ecosystem composition, structure functioning scarce. We assessed impact removal (a) vegetation cover, species richness diversity (b) green biomass seasonal phenological dynami...

El objetivo de este estudio fue evaluar la composición química seis gramíneas forrajeras para el trópico húmedo y seco mexicano: Andropogon gayanus, gerardii, Cenchrus ciliaris, Chloris gayana, Megathyrsus maximus Urochloa brizantha. Las muestras se colectaron en noviembre 2019, Tonaya, Jalisco, México. Se determinaron: materia seca, cenizas, proteína cruda (total e insoluble), extracto etéreo,...

Mutualistic relationships between plants and their pollinators have played a major role in the evolution of biodiversity. While the vulnerability of these relationships to environmental change is a major concern, studies often lack a framework for predicting impacts from emerging threats (e.g. biological invasions). The objective of this study was to determine the reliance of Platanthera ciliar...