Currently, numerous people still suffer from hungry and food insecurity. To solve the problem of production distribution food, we firstly set up a quantitative examination on system four dimensions, including equitability, efficiency, stability, sustainability. As choose 2 to 4 indexes for each dimension, applied entropy weight method decide index. Secondly, used BP neural network by MATLAB sim...

ABSTRACT The edaphic community comprises several organisms that perform ecological functions in the environment, such as litter fragmentation, nutrient cycling, and modifications of soil structure, addition to acting food chain regulators. Thus, objective this study was evaluate composition fauna physical chemical attributes different physiognomies Cerrado Parque Estadual do Mirador (PEM). carr...

Site conditions (topography, aspect, moisture availability, humus thickness, light exposure, and grazing activities) play a vital role in the germination regeneration process. The research was conducted Himalayan moist temperate forest. site divided based on silvicultural system (group selection single-tree system) into 148 plots 150 plots, respectively. group examined of 2 ha which clear-felle...

This paper evaluated the quality of water in Uberaba River and tributaries. Seven sites were sampled, a 12-km under influence urban area. The sampling site started upstream raw-water catchment station, passing through perimeter, downstream discharge effluent treated by Sewage Treatment Plant. Benthic macroinvertebrates collected using Surber net and, after identification, indices BMWP, diversit...

Shade-grown coffee is an agricultural system that contains some forest-like characteristics. However, structure and diversity are poorly known in shade coffee systems. In 61 coffee-growers' plots of Chiapas, Mexico, structural variables of shade vegetation and coffee yields were measured, recording species and their use. Coffee stands had five vegetation strata. Seventy seven woody species most...

Background Global mental health (GMH) advocates for access to and the equitable provision of mental health care. Although the treatment gap is a useful construct to measure access and equitability of care, it fails to communicate the real-life consequences of the treatment gap and the urgent need to address care disparities. Objective The aim of this article is to present a perspective on the p...

The effect of anthropic alterations such as drain discharge on a fish community was studied in the Ribeirão Claro River, municipality of Rio Claro, State of São Paulo, southeastern Brazil. Samples were made monthly in three different points along the river (headwaters, mid course, and confluence) between December, 2003 and March, 2004, which is the reproductive period for the majority of the sp...

The Iberá Nature Reserve in northeastern Argentina protects one of the largest freshwater wetlands and reservoirs of species in South America. However, key invertebrate groups such as the ants (Hymenoptera: Formicidae) remain almost unknown.Themainobjective of thiswork was to study the ground ant diversity in four main habitats of Iberá: grasslands, savannas, forests, and ßoating islands. Pitfa...

Information on the knowledge, uses, and abundance of natural resources in local communities can provide insight on conservation status and conservation strategies in these locations. The aim of this research was to evaluate the uses, knowledge and conservation status of plants in two Quilombolas (descendants of slaves of African origin) communities in the Atlantic rainforest of Brazil, São Seba...

Rice fields occupy large areas in Northeastern Argentina, and in Corrientes this widespead activity has become a feature in the landscape, as it is one of the main producing provinces. The aquatic Coleoptera is part of the fauna inhabiting these artificial environments but little is known about this group in irrigated rice fields. The aims of this study were to determine the diversity and speci...