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Dung beetles (Coleoptera: Scarabaeidae) provide fundamental ecosystem functions and services, like nutrient cycling, bioturbation, secondary seed dispersal, parasite and fly control, and soil fertilization, but land use transformation, has negatively impacted their diversity and processes. For the last four decades, dung beetles have been used as one of the most crucial insect groups for analyzing and monitoring biodiversity in natural temperate and tropical ecosystems, and their anthropogenic ecosystem´s derivatives. Dung beetles seem to be declining mainly for the forest conversion to agrosystems and others ecosystems transformed by human activity in the Neotropical region. Our knowledge ...
This monograph examines the profound changes sweeping Michoac?n in recent years that have facilitated the rise and power of drug traffickers; the origins and evolution of La Familia, its leadership and organization, its ideology and recruitment practices, its impressive resources, its brutal conflict with Los Zetas, its skill in establishing dual sovereignty in various municipalities, if not the entire state; and its long-term goals and their significance for the United States. The conclusion addresses steps that could be taken to curb this extraordinarily wealthy and dangerous criminal organization.
Una singular compilaci n de ensayos escritos por destacadas personalidades de la pol tica y la econom a de nuestro pa s que se re nen Para rendir homenaje a la obra y la personalidad de Rodrigo G mez, quien desde la direcci n del Banco de M xico, fue uno de los principales art fices del dise o y la ejecuci n de la pol tica econ mica en M xico.
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