Navegando por Autor "Silva, Jessica Quirino da"

Agora exibindo 1 - 1 de 1
  • Imagem de Miniatura
    Dissertação
    Acesso aberto (Open Access)
    Associação da condutibilidade elétrica do leite à cultura microbiológica na fazenda no ato da secagem de vacas Jersey em sistema de Compost Barn e ordenha
    (Universidade Estadual do Norte do Paraná, 2021-03-31) Silva, Jessica Quirino da; Silva, Marcelo Alves da; http://lattes.cnpq.br/3283906522734749; Silva, Marcelo Alves da; http://lattes.cnpq.br/3283906522734749; Zacarias, Francielle Gibson da Silva; https://orcid.org/0000-0003-1862-675X; http://lattes.cnpq.br/1740021520322135; Filho, Ivan Roque de Barros; https://orcid.org/0000-0002-0056-9358; http://lattes.cnpq.br/3978670586325267; Porto, Petrônio Pinheiro; https://orcid.org/0000-0002-2999-7612; http://lattes.cnpq.br/1751366795715746; Alberton, Luiz Romulo; https://orcid.org/0000-0002-5912-0467; http://lattes.cnpq.br/3800644716976971
    The expansion of agricultural crops and pasture areas was responsible for most of the deforestation in the municipality of Bandeirantes, Paraná. In this study, landscape fragmentation and its temporal evolution were evaluated by applying landscape ecology metrics in the period corresponding to the 1970s and 2012 (42 years), comparing the results of the metrics regarding their ability to demonstrate causes and consequences of forest fragmentation. The study area is located in the municipality of Bandeirantes-PR, situated between the coordinates 50°25'44" to 50°16'43" W and 23°14'05" to 23°05'59" S. Assessments of deforestation and degree of fragmentation were carried out using remote sensing data and landscape analysis. The results revealed that there was a reduction in the number of fragments between the periods: in 1970, 634 fragments, and in 2012, 312 fragments, which corresponds to 322 fragments less, and in percentage this is equivalent to 49% of the examined area. The study area has been undergoing landscape transformations since 1970, and the degree of fragmentation of native vegetation areas was replaced by temporary and permanent crops and pasture. Thus, the results of this study indicate that deforestation affected almost half of the natural vegetation until 2012, aggravating the integrity of native vegetation fragments in the study area.