DSpace Coleção:http://repositorio.unifap.br:80/jspui/handle/123456789/782024-02-20T12:49:30Z2024-02-20T12:49:30ZDiagnóstico geoambiental do município de Pedra Branca do Amapari, Amapáhttp://repositorio.unifap.br:80/jspui/handle/123456789/13492023-04-17T15:14:56Z2009-01-01T00:00:00ZTítulo: Diagnóstico geoambiental do município de Pedra Branca do Amapari, Amapá
Abstract: The region around the town of Pedra Branca do Amapari, from the beginning of this
century, has experienced great economic growth, caused by heating the mineral sector, which
culminated with the opening of two mines, one of gold and other of iron. By consequence, has
been subjected to a strong process of occupation, which has doubled the existing population in
2000, counted from 4009 habitants to 8182 in 2008. The region for its historic has strong
mineral vocation, because once housed one of the largest mining projects in Brazil, the
ICOMI project, which explored manganese from 1953 to 1998. Since the departure of ICOMI
in 1998, the extractivism has been the basis of the regional economy, characterized mainly by
logging and “cipó titica”, along with mining, represented by the mining of gold and tantalite,
and small landowners. This territorial occupation occurs dissociated from the principles of a
sustainable occupation, without proper environmental management. The fundamental
objectives of this study was to provide subsidies to government and private sector, to better
manage the city through the development of multi-theme study of the physical and biotic
areas called Geoenvironmental Diagnosis of Pedra Branca do Amapari, using data from field
work and bibliographic previously undertaken in the region. The diagnosis of the physical
environment have become the main tool for the present work, represented by the
implementation of the topics of geology, geomorphology, climate, vegetation, water resources
use and land cover in addition to the environmental impacts from of human activities. In order
to get a sense of human action over the area, it was proceed the identification and analysis of
key environmental impacts, which were characterized by processes associated with: mining,
deforestation, sedimentation, gullies / ravine, contamination of drainage. The integration of
data allows the spatial distribution of areas with natural potential for the task and / or
protection and conservation, including areas for further recovery. This integration is presented
in a final cartographic product scale of 1: 1.000.000, called Geoenvironmental Diagnosis
Pedra Branca do Amapari, comprising five macrocompartiments, called Geo-Environmental
Domains: Mountain Ridge Region (1); Hills Region (2); Fluvial Plains (3); Tabular Surfaces
(4) and Dissected Plateaus (5), subdivided into eight unities Geoenvironmental, called
respectively: Mesas (1a), Tablelands Dissected (1b); Small Hills and Hills (2a); Fluvial
Raised Line (3a), Floodplains (3b); Tabular Surfaces (4a), Hills and Small Dissected Hills
(4b); Dissected Plateaus Southeast (5b).2009-01-01T00:00:00ZAvaliação do uso de substâncias atrativas para mamíferos neotropicaishttp://repositorio.unifap.br:80/jspui/handle/123456789/5602020-04-16T11:51:53Z0035-05-11T00:00:00ZTítulo: Avaliação do uso de substâncias atrativas para mamíferos neotropicais
Abstract: It is estimated that approximately 1/3 of all mammals species on the planet are in the Neotropical region. Activities performed by mammals are fundamental to their environments, and although mammals are sometimes considered key species for ecosystems they are threatened in all their distributional ranges. Furthermore, difficulties exist at studies with mammals, through the logistical difficulties of Neotropical biomes and / or the criptic behavior of most species of mammals. However, the use of attractant substances for studies with mammals, have the potential to compensate the cost-benefits in studies with this group. Thus, we aim to provide a clear basis for understanding interactions between mammals and attractants, to maximize comparability between studies and increase the potential utility in future studies with Neotropical mammals. Our results presented that most of the studies were based on previous knowledge and / or scientific culture, and did not use any control nor statistical tests to evaluate explicitly the efficiency of the attractive used. Most of the studies focused or registered carnivores, and this order had the highest number of substances used among all studies. There was only consensus on the effect of using and attracting frugivorous bats with fruits, essential oils and floral compounds. Finally, we considered guidelines to maximize the comparability between studies, in terms of cost-benefits, in order to direct future studies that intend to study groups of mammals, with the use of attractants0035-05-11T00:00:00ZEfeito de classes de solo e umidade na profundidade de pupação e viabilidade pupal de Bactrocera carambolae Drew & Hancock (1994)http://repositorio.unifap.br:80/jspui/handle/123456789/5592020-04-18T17:53:04Z0037-01-08T00:00:00ZTítulo: Efeito de classes de solo e umidade na profundidade de pupação e viabilidade pupal de Bactrocera carambolae Drew & Hancock (1994)
Abstract: Bactrocera carambolae is a quarantine pest present in Brazil and today represents the main phytosanitary barrier for the exportation of fresh fruits produced in the country.Pupation depth estimates for B. carambolae are important for the development of sampling and management techniques for this exotic species. In this work, the effect of soil classes and moisture on the pupal phase of this insect was evaluated. Three soil textural classes and four moisture levels were used, 0%, 30%, 60% and 90% of the field capacity of each soil, totaling 12 treatments, with 6 repetitions. Pupation depths varied from the surface to the fifth centimeter. The soil class showed greater significance in relation to the pupal development of B. carambolae. Moisture was not significant for pupation depth and emergence, but correlated with soil showed strong interaction, showing an increase of emergence as the humidity increased in clayey loam and sandy-clay loam soil. The methodology developed for the work proved to be efficient for works of this nature0037-01-08T00:00:00ZPrevendo padrões espaciais de queda de frutos na Floresta Nacional do Amapáhttp://repositorio.unifap.br:80/jspui/handle/123456789/5572020-04-15T14:30:53Z0029-08-09T00:00:00ZTítulo: Prevendo padrões espaciais de queda de frutos na Floresta Nacional do Amapá
Abstract: Fruit-frugivore interactions are a vital ecological component of Amazon forest biodiversity and fruit-fall biomass data provide insight into the spatial heterogeneity of resources for terrestrial frugivores and other consumers. Here we describe, explain and predict meso-scale fruit-fall patterns within a lowland Amazon forest. Fruit-fall data were collected from May and June of 2016 with a ground survey in 90 plots (total of 4.42 ha) distributed across a 25 Km2 grid. Generalized additive models were used to explain and
predict the spatial patterns of fruit-fall dry biomass, richness and diversity. Multi model selection was used to determine the relative importance of space, topographic, hydrographic and vegetation cover. We counted 21812 fallen fruits, this total included fruits of 86 species from 28 families and 51 genera. Considering combined totals from both months, the mean fruit-fall biomass was 44.84 Kg ha-1 month-1 (±45.13 SD); mean number of species fruiting 4.3 (±2.6 SD) and mean Shannon diversity index 0.84 (±0.5 SD). We found that spatial effects most strongly explained variation in fruit-fall patterns and that the contribution of spatial, topographic, hydrographic and vegetation variables differed between responses of the variables. Whilst it was possible to explain substantial proportions of deviance in the responses, spatially explicit predictions using remotely sensed variables did not return accurate estimates. In an age of rapid adoption of remotely sensed data, our findings suggest that fruit-fall patterns are one of the myriad below canopy components of Amazon forest diversity that will continue to require ground based data collection. More sampling for space-time association is required0029-08-09T00:00:00Z