Incorporación de materiales ecológicos de los envases de botellas de agua en la empresa Nestlé en la actualidad

Problema: Este trabajo de investigación se elaboró para comprender la manera de incorporación de materiales ecológicos para la reducción de la contaminación ambiental. Objetivos: La incorporación de materiales ecológicos, y analizar la implementación del reciclaje del plástico PET en los envases de agua mineral de la marca Nestlé. Metodología: El estudio comprendió la descripción del fenómeno central mediante la recolección de datos cualitativos obtenidos de unidades en artículos científicos. Se trató de una investigación mixta (cualitativa y cuantitativa). Para la etapa cualitativa se usó la técnica guía de observación, y para la etapa cuantitativa se usó la técnica del cuestionario. Para el análisis de los datos cualitativos se usó estadística descriptiva por medio del software Microsoft Excel. Resultados: La mayoría de los encuestados está de acuerdo en la incorporación del plástico PET. Conclusión: La mayoría de los usuarios encuestados son conscientes del daño que ocasiona el plástico en el medio ambient

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data