Programa de Pós-graduação em Ciências Ambientais
URI Permanente desta comunidade
Navegar
Navegando Programa de Pós-graduação em Ciências Ambientais por Por Orientador "De Marco Júnior, Paulo"
Agora exibindo 1 - 2 de 2
Resultados por página
Opções de Ordenação
Item Conservação de mamíferos no cerrado e em Goiás(Universidade Federal de Goiás, 2012-12-19) Barreto, Bruno de Souza; Miziara, Fausto; De Marco Júnior, Paulo; http://lattes.cnpq.br/2767494720646648Increasingly biodiversity has lost diversity around the globe because of the way the human population have used natural resources. To reduce the impacts caused by human activity, conservation units (CU) have been created to ensure the maintenance of biodiversity. However, many conservation units were not established following scientific criteria and its efficiency can therefore be questioned. In this study we tried to evaluate the efficiency of conservation of the Cerrado based on species richness and beta diversity of mammals currently and in accord to climate change expected for 2080. We show through gap analyzes that species are represented in the current system both in the current climate and in the future. However, they have become rarer within CUs with climate change. We show that CUs do not capture a greater diversity than expected by chance. It is expected a larger number of species within the CUs in 2080, however, the number of species outside them will also be greater. As for beta diversity, there will be a reduction of the index in 2080 and both outside and within the UCs expected on average the same value. Climate change became UC’s Cerrado more inefficient, there will be an increase in the number of threatened species because of climate change interfering in the spatial arrangement of species on the Cerrado. This draws attention to the evaluation of systems of protected areas consider the spatial-temporal dynamics of the species.Item Por uma agricultura mais sustentável: práticas de produção responsável em propriedades rurais privadas(Universidade Federal de Goiás, 2017-02-24) Pacífico, Eduardo dos Santos; Miziara, Fausto; http://lattes.cnpq.br/3275079358565458; De Marco Júnior, Paulo; http://lattes.cnpq.br/2767494720646648; De Marco Júnior, Paulo; Ferreira Junior, Laerte Guimarães; Bastos, Rogério Pereira; Daud, Rodrigo Damasco; Alencar, Ane Auxiliadora CostaAgriculture is the dominant use on Earth’s surface and rural producers are the principal managers of useable lands, but promoting a sustainable agriculture still a challenge. Despite better agriculture practices is an urgent need, there are many barriers and no consensus in the responsible factors to its adoption among farmers. We evaluated hundreds of Brazilian medium to large private industrial rural properties - farms that produces commodities aiming primarily to sell and supported by paid labor. All farms evaluated are supported by NGO Aliança da Terra in the Producing Right platform, a voluntary and non-punitive program to promote better agriculture practices. We evaluated how (1) the characteristics of the Responsible Production practices, (2) the characteristics of the farmer, and (3) the characteristics of the private property affect agriculture responsible production practices adoption. We used primary data. Farmers committed to mandatory Responsible Production practices, even if these practices have high innovation degree and low relationship with productivity, but they executed practices based on finances and shorter planning horizon. Higher market pressure resulted in better environmental practices. Older farmers performed better in social and responsible production practices. Producers with higher schooling executed better social practices. Farmers with larger rural properties and crop producers performed better for sustainable agricultural practices than smaller and livestock producers. Instead of only command and control strategy, we need to create positive incentives to eliminate financial constraints for sustainability, support farmers to be innovators, reduce their uncertainty (political and financial), and eliminate information gap to spread successfully Responsible Production practices.