https://socictopen.socict.org/files/original/b2d42e80ea1e1f1c85599159834f635f.pdf 784fdc2efc0629019845d6e4bffb7a63 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Variación temporal de la riqueza, composición y densidad de acridios (Orthoptera: Acridoidea) en diferentes comunidades vegetales del Sur de la provincia de Buenos Aires Temporal variation in grasshopper (Orthoptera: Acridoidea) richness, composition, and density in grasslands of the southern Buenos Aires province Creator An entity primarily responsible for making the resource Carlos E. Lange, Yanina MARIOTTINI, María L. DE WYSIECKI Description An account of the resource Los acridios figuran entre los invertebrados herbívoros dominantes en la mayoría de los sistemas de pastizal. Si bien, en Argentina, la importancia económica de estos insectos ha sido reconocida desde el siglo XIX, aún se desconocen aspectos importantes de la biología y ecología de la mayoría de las especies. El objetivo principal de este estudio fue determinar cómo la riqueza de especies, la composición y la densidad de acridios variaron en las comunidades vegetales más características del Sur de la provincia de Buenos Aires, durante cinco temporadas sucesivas (2005-06 hasta 2009-10), un área históricamente afectada por estos insectos. Se colectó un total de 22especies. La riqueza de acridios fue similar entre las diferentes comunidades vegetales, observándose una disminución significativa de la misma durante la última temporada de muestreo. La densidad total de acridios aumentó significativamente en todas las comunidades vegetales durante el estudio, alcanzando niveles de explosión poblacional (&#8220;outbreak&#8221;) en las últimas dos temporadas. En la de 2009-10, la densidad fue ocho veces mayor que en 2005-06. Las especies que más aportaron a este aumento en la densidad fueron Dichroplus maculipennis (Blanchard) y Borellia bruneri (Rehn). Dichroplus maculipennis resurgió como el acridio plaga más perjudicial en la región Pampeana, con el desarrollo de un &#8220;outbreak&#8221; de magnitud histórica, se registraron, en algunos sitios, densidades de hasta 75 ind/m².Grasshoppers are among the dominant invertebrate herbivores in most grassland habitats. The economic importance of grasshoppers has been recognized in Argentina since the XIX century, but many aspects of the biology and ecology of most species remain unknown. The main objective of this study was to determine how grasshopper species richness, composition, and density varied among characteristic plant communities during five successive seasons (2005-06 to 2009-10) in grasslands of the southern Buenos Aires province, an area historically affected by these insects. Twenty two species were collected. Grasshopper species richness was similar between different plant communities and showed a significant decrease in the final year of sampling. The overall density increased significantly in all plant communities during the study, reaching outbreak levels in the last two seasons. Density was over eight times higher in 2009-10 than in 2005-06. The greatest contribution to the increase in density observed was by Dichroplus maculipennis (Blanchard) and Borellia bruneri (Rhen). Dichroplus maculipennis re-emerged as the most serious grasshopper pest in the Pampas, developing an outbreak of historical magnitude that included high densities of up to75 ind/m². Date A point or period of time associated with an event in the lifecycle of the resource 2012 Subject The topic of the resource Acridios, Borellia bruneri, Dichroplus maculipennis, Grasshoppers, Outbreaks, Pastizales, grasslands Source A related resource from which the described resource is derived Revista de la Sociedad Entomológica Argentina Publisher An entity responsible for making the resource available Sociedad Entomológica Argentina Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Zoology Relation A related resource <a href="http://www.scielo.org.ar/scielo.php?script=sci_arttext&amp;pid=S0373-56802012000200011" target="_blank" rel="noreferrer noopener">http://www.scielo.org.ar/scielo.php?script=sci_arttext&amp;pid=S0373-56802012000200011</a>