Sistema de reprodução em pequenas populações fragmentadas e em árvores isoladas de Hymenaea stigonocarpa

Six microsatellite loci were used to quantify the mating system of two small fragmented populations (Selviria - SEL and Aparecida do Tabuado APT, Mato Grosso do Sul State) and isolated trees in pastures, of the bat-pollinated tropical tree Hymenaea stignocarpa, growing in the Center-west region of Brazil. In SEL population, seeds were collected from 11 mother-trees; in APT, from three trees and, in the case of isolated trees, from six individuals growing at least 500 m apart in pastures. To investigate if there are differences on mating system between trees in populations and isolated trees, trees from populations were pooled as a group and, likewise, the isolated trees were pooled to another group. The outcrossing rate was higher in the populations ((t) over cap (m)=0.873) than in isolated trees ((t) over cap (m)=0.857), but the difference was not significant. Significant and high differences between multi-locus and single-locus outcrossing rate were detected in populations ((t) over cap (m)-(t) over cap (s)=0.301, P<0.05) and isolated trees (<(t)over cap>(m)-(t) over cap (s) = 0.276, P < 0.05), suggesting mating between relatives. Higher paternity correlation was observed in trees from population (<(r)over cap>(p)=0.636) than in isolated trees ((r) over cap (p)=0.377), indicating the occurrence of some correlated matings and that part of offspring are full-sibs. It was not observed increased in self-fertilization rate in isolated trees in pastures. In general terms, the unique observed difference in mating system between populations and isolate trees was the high rate of correlated matings in trees from populations, due probably to the small distance among coespecifics and the pollinator behavior, visiting near trees.

Benefícios econômicos agregados às propriedades urbanas pelas paisagens naturais

Amenities value provided by green areas, sea, river and natural landscapes are hardly perceived and incorporated on urban planning and development. In this work, distance and view to protected and non-protected green areas, sea and river were evaluated as to how they increase the housing prices in Natal. Hedonic pricing methods were used with linear models to estimate the marginal implicit value of environmental, residential and neighborhood features. Results on Chapter 1 demonstrate the view to the sea and protected natural areas were largely capitalized on housing prices, while non-protected natural areas didn t display such effect. Housing prices also increase when close to the sea or to parks entrance. However, housing prices fall when houses are near non-protected natural areas. When estates with sea view were excluded, the protected natural areas view and a longer distance to non-protected natural areas increased dwelling prices. Results on Chapter 2 point the sea view as an hedonic variable the contributes strongly to the property selling prices, even though not always as the greatest contributor; furthermore, the property proximity to Dunas Park or City of the Park entrance increases its price, as does closeness to Dunas Park, view to City of the Park or Dunas Park. On the other hand, selling prices diminish if properties are close to City of the Park or Morro do Careca. Results on this study confirm the hedonic pricing methods is an important intrument, capable of revealing to popullation the importance of enviromental amenities and can be used by public managers for creating public policies for conservation and restoration projects

Fotografia e paisagens da modernidade : Currais Novos/RN de 1950 a 1980 / Gênison Costa de Medeiros

This dissertation promotes a dialogue between visual representation and the new cultural geography theory to critically examine the photography representation of an specific urban landscape. The interest here is to explore the ways in which the images of the city of Currais Novos - RN, captured by the photographer Raimundo Bezerra from 1950 to 1980, have taken a great part in shaping people s understanding and imagination of this city s modernizing process. What comes out of this work is the comprehension of that photography permites a geographical study of urban landscape as it can revel perceptions, imaginations, discourses e subjetivities which are based on especific urban cultural dreams and aspirations related to the case studied. So, the aim of this dissertation was to analyse how the discourse of modernity could be seen as part of and impregnated to the urban landscape of Currais Novos by Bezerra s photographs. Then, an intertextual, hermeneutic and phenomenalogical understanding of the geographic object and how it fits within the cultural context was fundamental

Caracterização florística e estrutural das florestas naturalmente fragmentadas no Parque Estadual do Guartelá, município de Tibagi, estado do Paraná

A Floresta Ombrófila Mista na região dos Campos Gerais do Paraná é naturalmente fragmentada, ocorrendo em forma de capões ou ao longo dos cursos d'água. Com o objetivo de caracterizar a composição e estrutura destes fragmentos e avaliar as correlações entre a distribuição das espécies e variáveis do solo de tal região, realizou-se um estudo no Parque Estadual do Guartelá, Município de Tibagi (24°39'10S e 50°15'25W). Foram alocadas 50 parcelas de 10x10m, distribuídas em capões de diferentes tamanhos e ao longo da floresta que acompanha o Rio Iapó, amostrando todos os indivíduos com altura > 3m. Foram encontrados um alto número de espécies (140) e uma elevada diversidade (H'=4,10), valores acima daqueles relatados para o domínio da Floresta Ombrófila Mista. As análises da composição e estrutura revelaram uma flora de transição entre a Floresta Ombrófila Mista e a Floresta Estacional Semidecidual, com uma maior similaridade com esta última, possivelmente influenciada pelo clima. Uma análise de correspondência canônica identificou as variáveis textura e acidez como as correlacionadas com a distribuição de abundâncias das espécies, ordenando dois grupos distintos: um formado pelas parcelas distribuídas nos capões, relacionadas fortemente à textura do solo; e outro pelas parcelas alocadas na floresta de galeria, associadas principalmente com a disponibilidade de nutrientes.

Sistema de reprodução em pequenas populações fragmentadas e em árvores isoladas de Hymenaea stigonocarpa

Six microsatellite loci were used to quantify the mating system of two small fragmented populations (Selviria - SEL and Aparecida do Tabuado - APT, Mato Grosso do Sul State) and isolated trees in pastures, of the bat-pollinated tropical tree Hymenaea stignocarpa, growing in the Center-west region of Brazil. In SEL population, seeds were collected from 11 mother-trees; in APT, from three trees and, in the case of isolated trees, from six individuals growing at least 500 m apart in pastures. To investigate if there are differences on mating system between trees in populations and isolated trees, trees from populations were pooled as a group and, likewise, the isolated trees were pooled to another group. The outcrossing rate was higher in the populations (t̂ m= 0.873) than in isolated trees (t̂ m=0.857), but the difference was not significant. Significant and high differences between multi-locus and single-locus outcrossing rate were detected in populations (t̂ m- t̂ s=0.301, P<0.05) and isolated trees (t̂ m- t̂ s=0.276, P<0.05), suggesting mating between relatives. Higher paternity correlation was observed in trees from population (r̂ p=0.636) than in isolated trees (r̂ p=0.377), indicating the occurrence of some correlated matings and that part of offspring are full-sibs. It was not observed increased in self-fertilization rate in isolated trees in pastures. In general terms, the unique observed difference in mating system between populations and isolate trees was the high rate of correlated matings in trees from populations, due probably to the small distance among coespecifics and the pollinator behavior, visiting near trees.

Sentido de pertenencia en sociedades fragmentadas: América Latina desde una perspectiva global

Prefacio de la Sra. Alicia Bárcena

Sistema de reprodução, parentesco e tamanho efetivo em sementes de polinização livre de populações fragmentadas de Copaifera langsdorffii Desf. por análise de locos microssatélites

Anthropogenic changes in the reproductive population density can affect the mating system and result in an increase in selfing and correlated matings. This study investigated the mating system in small fragmented populations of the insect pollinated tropical tree species Copaifera langsdorffii, using microsatellite loci and the mixed and correlated mating models. Open-pollinated seeds were collected from 15 seed-trees located in a small forest fragment (4.8 ha), denominated Bosque and from 14 other seed-trees located in other small forest fragments of the north-western region of São Paulo State. No significant differences were observed between the seed-trees from Bosque (tm=0.933±0.028) and other fragments (tm=0.971±0.032), although these estimates were significantly different from 1.0, suggesting that selfing was occurring. Differences between multilocus and unilocus outcrossing rate were significantly high in both seed-trees of Bosque (tm -ts=0.478±0.05) and other forest fragments (tm -ts=0.475±0.018), suggesting a spatial genetic structure in those stands. The results also showed high rates of correlated mating in the samples, indicating that a good part of the offspring were full-sibs. As a consequence of selfing, mating among relatives and correlated matings, the coancestry within families was equally high in the seed-trees of Bosque ((Θ=0.237) and in the seed-trees of the other forest fragments (Θ=0.241) and the effective population size was lower than expected in panmitic populations (Ne<4). The results were discussed, focusing on the sample size of seed-trees to collect seeds for genetic conservation and enviromental reforestation.

A audiência é quem manda?: paisagens sonoras em prefixos comerciais de rádio

Pós-graduação em Comunicação - FAAC

Educação Matemática e Nova Alta Paulista: orientação para tecer paisagens

Pós-graduação em Educação Matemática - IGCE

Matemática no ensino primário: duas paisagens, uma história, muitas interrogações

Pós-graduação em Educação Matemática - IGCE

Impressões e paisagens: na fronteira entre naturalismo, simbolismo e impressionismo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Paisagens pretéritas e a (re)produção do centro da cidade de Rio Claro - SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A natureza no discurso fotográfico da revista O Cruzeiro: paisagens e imaginários no Brasil desenvolvimentista 1954-1961

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Paisagens nipo-brasileiras na cidade de Tomé-Açu - PA: estudo antropológico das memórias da família Onuma

Em setembro de 1929, o primeiro grupo de imigrantes japoneses entra em terras paraenses, mais especificamente à região Nordeste, dando assim, início à colônia nipônica na Amazônia. Haruo Onuma chegou em dezembro de 1929, compondo o segundo grupo. A sua futura esposa Mitsu Yamaguchi, desembarcou em 1930 na quarta leva de imigrantes a chegar no país. O casal juntamente com seus patrícios, participou ativamente da implantação da colônia localizada na atual cidade de Tomé-Açu, engendrando através da labuta e dos preceitos ético-estéticos japoneses mesclados aos saberes e fazeres locais, um conjunto de paisagens distintas no cenário amazônico, uma vez que sintetizam experiências civilizacionais diversas. O casal Onuma, por exemplo, edificou uma moradia diferenciada, durante o período áureo da pimenta-do-reino, cuja paisagem revela tal síntese entre visões de mundo diversas. A proposta deste estudo é a de interpretar as diferentes formas de conformação das paisagens constituídas pelos patriarcas da família Onuma a partir das memórias de seus parentes e amigos, considerando que tais narrativas expressam elementos que auxiliam na compreensão da subjetividade, do modo de ser e de pensar nipo-brasileiro no contexto paraense. Este estudo apresenta ainda, uma incursão ao universo do Bon-Odori - ritual que revela parte significativa das formas de sociabilidade vividas pelos nipo-brasileiros - o qual é realizado anualmente na localidade de Tomé-Açu.

As paisagens fantásticas numa cidade amazônica sob o olhar dos taxistas

Este artigo tem como objetivo analisar as impressões e as interpretações de antigos taxistas a respeito das mudanças ocorridas na cidade de Belém no decorrer do século XX. Nesse contexto, os motoristas autônomos de Belém figuram como portadores de um conhecimento sobre a cidade baseado na prática do deslocamento, revelando uma memória coletiva ligada aos processos de urbanização e transformação do viver na capital paraense. Emerge, então, um imaginário construído a respeito da cidade de Belém no interior de uma categoria profissional específica, bem como representações, aspirações, devaneios e queixas comuns sobre o viver na cidade. Assim, os pontos de vista desses profissionais sobre Belém aparecem expressos em narrativas fantásticas em que os taxistas encontram visagens e assombrações durante sua jornada de trabalho.