Units Of Conservation
Mostrando 25-36 de 270 artigos, teses e dissertações.
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25. Federal Conservation Units in Brazil: The Situation of Biomes and Regions
ABSTRACT Federal conservation units (FCU) are areas legally established by the government, in order to meet the needs of protection and sustainable exploitation of biodiversity. A way to ensure the efficiency of public management is to systematize data. Therefore, the present study grouped and analyzed public data about FCU. Brazil has 309 federal conservati
Floresta Ambient.. Publicado em: 01/03/2018
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26. Fish habitat associations along a longitudinal gradient in a preserved coastal Atlantic stream, Brazil
ABSTRACT Habitat conditions at multiple scales are one of the major factors structuring ichthyofauna. Thus, we analyzed the fish habitat associations along the headwater-mouth gradient of a coastal Atlantic stream. We categorized the sampling sites into habitat units, so that in the middle reach these categories were statistically differentiated into riffles
Zoologia (Curitiba). Publicado em: 01/02/2018
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27. The breeding biology, nest success, habitat and behavior of the endangered Saffron-cowled Blackbird, Xanthopsar flavus (Aves: Icteridae), at an Important Bird Area (IBA) in Rio Grande do Sul, Brazil
ABSTRACT The Saffron-cowled Blackbird, Xanthopsar flavus (Gmelin, 1788), is a globally vulnerable icterid endemic to grasslands and open areas, and a priority species for research and conservation programs. This contribution provides information on the population size, habitat, behavior, breeding biology and nest success of X. flavus in two conservation unit
Zoologia (Curitiba). Publicado em: 23/10/2017
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28. Genetic diversity of Morato's Digger Toad, Proceratophrys moratoi: spatial structure, gene flow, effective size and the need for differential management strategies of populations
Abstract The Morato's Digger Toad, Proceratophrys moratoi, is a critically endangered toad species with a marked population decline in southern Brazilian Cerrado. Despite this, new populations are being discovered, primarily in the northern part of the distribution range, which raises a number of questions with regard to the conservation status of the specie
Genet. Mol. Biol.. Publicado em: 05/06/2017
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29. Eficiencia de las unidades de conservación definidas en la Reserva Natural Iberá (Argentina) en la protección de la diversidad de reptiles
ABSTRACT Owing to accelerated biodiversity loss caused by human activities, the protected areas (PAs) are the main response to mitigate this crisis. The Iberá Natural Reserve (INR) includes 13000 km2 of private and state lands, which contain wetland and upland areas with high biodiversity, endemism and significant populations of threatened species. In order
Iheringia, Sér. Zool.. Publicado em: 13/02/2017
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30. Lycophytes and ferns composition of Atlantic Forest conservation units in western Paraná with comparisons to other areas in southern Brazil
This study surveyed lycophyte and fern species in four forest fragments in western Paraná, Brazil, and compared them to 15 other fragments with different plant formations from the Atlantic Forest biome in southern Brazil. In total, five lycophyte species (in two families and two genera) and 98 species and two varieties of ferns (in 16 families and 38 genera
Acta Bot. Bras.. Publicado em: 2015-12
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31. Floristic units and their predictors unveiled in part of the Atlantic Forest hotspot: implications for conservation planning
RESUMO Nós submetemos dados geoclimáticos e de ocorrência de espécies arbóreas de 59 sítios em uma bacia hidrográfica na Mata Atlântica do sudeste do Brasil a análises de ordenação, ANOVA e agrupamento com os objetivos de investigar as causas dos padrões fitogeográficos e determinar se as seis sub-regiões reconhecidas constituem unidades florí
An. Acad. Bras. Ciênc.. Publicado em: 27/11/2015
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32. Conservation of mayflies (Insecta, Ephemeroptera) in Espírito Santo, southeastern Brazil
Conservation of mayflies (Insecta, Ephemeroptera) in Espírito Santo, southeastern Brazil. Ephemeroptera exhibits great diversity among bodies of freshwater in the Atlantic Forest, a biome that is suffering from massive human impact. Within this context, the creation of conservation units using biological information is more recommended than economic, cultur
Rev. Bras. entomol.. Publicado em: 2014-12
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33. Molecular analysis of phylogeographic subspecies in three Ponto-Caspian sturgeon species
Sturgeons (Order Acipenseriformes) represent an extremely valuable natural resource that is now facing depletion. In the current study we evaluate if the traditional classification in subspecies of Acipenser gueldenstaedtii, Acipenser stellatus and Huso huso, endemic to Ponto-Caspian region is sustained by molecular analysis and if these represent Evolutiona
Genet. Mol. Biol.. Publicado em: 2014-09
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34. Hippeastrum species in areas of restinga in the state of Rio de Janeiro, Brazil: pollen characters
The order Asparagales comprises 14 families, five of which occur in Brazil. Amaryllidaceae is a family of economic relevance and includes numerous ornamental genera. The genus Hippeastrum is widely distributed in Brazil and comprises 34 species, 11 of which occur in areas of restinga (coastal woodland) and Atlantic Forest in the state of Rio de Janeiro. The
Acta Bot. Bras.. Publicado em: 2013-12
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35. Changes in wild bee fauna of a grassland in Brazil reveal negative effects associated with growing urbanization during the last 40 years
Bee fauna and associated flora from a grassland site in Brazil, surveyed 40 and 20 years ago, were newly surveyed with comparable methodology to evaluate changes in the bee fauna of this site, considering that human population and urbanization has exponentially increased in the last 40 years. In general, bee species richness has declined in 22%, as well as t
Zoologia (Curitiba). Publicado em: 2013-04
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36. Diversidade genética de Qualea grandiflora Mart estimada por microssatélites em quatro áreas de Cerrado do estado de São Paulo / Genetic diversity of Qualea grandiflora Mart estimated by microsatellites in four Cerrado areas of São Paulo
This study deals with the structure and genetic diversity of a species typical of the Brazilian Cerrado, Qualea grandiflora Mart (Vochysiaceae), present in different physiognomies of this biome. We developed eight microsatellite loci to analyze 420 samples of adult individuals from four populations distributed in the state of São Paulo, three of them in uni
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/07/2012