Suchergebnisse

Ecological succession is a complex processes involving changes in the structure of plant community and it is an important factor determining the structure of arboreal ants assemblages, but little is known about the effects of succession on ant assemblages in regions of Tropical Dry Forests (TDFs), such as the Brazilian Caatinga. The aim of this study was to investigate the effects of ecological succession on the richness and species composition of arboreal ants in fragments of Caatinga, testing the following hypothesis: i) the richness of arboreal ants increases along a gradient of forest succession, in response to tree richness and/or density; ii) species composition of arboreal ants differs among stages of forest succession due to differences in vegetation structure in theses stages. This study was conducted in 15 plots distributed in three areas with different stages of secondary succession (early, intermediate and late). Tree density and richness were used as surrogate of vegetation structure. Ants were sampled using the technique of beating the foliage and baited pitfall traps, where five trees were sampled per plot, totaling 75 individual trees sampled. We sampled 37 species of ants, distributed in 16 genera and five subfamilies. Ant richness differed among stages of succession and seasons, with higher number of species in the late succession and rainy period, also increasing with tree richness and density. Besides, there was a distinct composition of ant species among stages of succession and seasons. Results obtained in this study reinforce the importance of using ants as environmental bioindicators, since the sensitivity to environmental variations of this group enables us to differentiate early and late successional stages of forest succession in Caatinga environment.

O presente artigo apresenta os dados parciais da pesquisa intitulada Mapeamento do financiamento das políticas públicas de trabalho dirigidas aos pescadores artesanais e pequenos produtores rurais no Brasil, desenvolvida no âmbito do PIBIC/CNPq/UFS. Os dados coletados foram obtidos através de sites e pesquisa bibliográfica. Na disputa pela destinação do fundo público, e observando seus resultados, constata que estes refletem na distribuição orçamentária dos recursos entre setores, áreas, políticas específicas, reconhecendo, assim, o direcionamento político-estratégico da intervenção estatal. Conclui que, especificamente no caso dos três ministérios pesquisados (Ministério da Pesca, Ministério do Desenvolvimento Agrário e Ministério do Meio Ambiente), eles não são prioridade nos governos Lula e Rousseff. Seus orçamentos são pífios, recebendo pouquíssima dotação no período estudado.Palavras-chave: Orçamento público; fundo público; financiamento; políticas públicasTHE PLACE OF ENVIRONMENTAL POLICIES, AGRICULTURE AND FISHERIES IN THE FEDERAL BUDGETAbstract: This paper presents preliminary data from a survey entitled "mapping the financing of public policies directed atjob artisanal fishers and small rural producers in Brazil", developed under PIBIC/CNPq/UFS. Data were obtained throughwebsites and bibliographic research. The dispute over the allocation of public funds and observing their results, which arereflected in the budgetary allocation of resources between sectors, areas, specific policies, one can recognize the politicaland strategic direction of state intervention. Specifically in the case of the three surveyed ministries (Ministry of Fisheries, Ministry of Agrarian Development and the Mystery of the Environment), it was shown that they are not a priority ingovernments Lula and Rousself. Their budgets are meager, receiving very little provision in the period studied.Keywords: Public budget, public fund, financing, public policies.