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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Funkcionalni karakteri i modelovanje distribucije vrsta osolikih muva (Diptera: Syrphidae) jugoistočne Evrope u proceni rizika od izumiranja / Functional traits and species distribution modelling of hoverflies (Diptera:Syrphidae) in Southeast Europe in assessment of extinction risk

Miličić Marija 27 December 2017 (has links)
<p>U radu je izvr&scaron;ena podela 572 registrovane vrste osolikih muva sa područja jugoistočne Evrope na funkcionalne grupe, na osnovu registrovanih funkcionalnih karaktera. Za<br />odabrane 44 endemske i nativne ne-endemske vrste koje su svojim klimatskim ni&scaron;ama ograničene na istraživani prostor, kreirane su mape sada&scaron;nje i buduće potencijalne distribucije (za dva perioda, 2041 -2060 i 2061-2080) upotrebom MAXENT algoritma. Na osnovu dobijenih mapa, izračunata je potenijalna promena areala za odabrane vrste, čime je procenjen efekat klimatskih promena na distribuciju vrsta sirfida. Detektovane su vrste koje će najvi&scaron;e biti pogođene klimatskim promenama, kao i prostori sa najvećim potencijalnim bogatstvom vrsta u budućnosti i područja predviđena da će izgubiti deo diverziteta sirfida. Pokazano je da vrste sa ograničenim arealom neće u budućnosti iskusiti veće smanjenje areala u odnosu na &scaron;iroko rasprostranjene vrste. Takođe, na osnovu mapa potenicijalne sada&scaron;nje distribucije i procenjene retkosti vrsta, izvr&scaron;ena je prioretizacija područja značajnih za opstanak osolikih muva u jugoistočnoj Evropi. Primenom linearnih regresionih i linearnih modela sa me&scaron;ovitim efektom ispitana je međuzavisnost&nbsp; funkcionalnih karaktera vrsta i procenjene promene veličine areala. Definisani su&nbsp; funkcionalni karakteri koji utiču na promenu veličine areala osolikih muva. Ustanovljeni koncept može biti upotrebljen za detekciju vrsta koje se jo&scaron; uvek ne smatraju ugroženim, ali zbog svojih biolo&scaron;ko-ekolo&scaron;kih karakteristika imaju potencijal da to postanu, te stoga zaslužuju pažnju konzervacionista. Dobijeni rezultati mogu u velikoj meri poslužiti za kreiranje sistematskog konzervacionog plana za očuvanje osolikih muva na teritoriji jugoistočne Evrope.</p> / <p>In this paper, the division of 572 species of hoverflies registered in Southeast Europe into functional groups was conducted, based on their functional traits. For 44 selected&nbsp; endemic and native non-endemic species that have their climatic niches limited in the study area, maps of current and future potential distributions were created (for the periods, 2041-2060 and 2061-2080) using MAXENT algorithm. Based on the obtained &nbsp; maps, changes in potential area of occupancy were calculated, in order to estimate the &nbsp; effect of climate change on the distribution of hoverfly species. Species that will be most affected by climate change were detected, as well as the areas with the greatest potential species richness in the future and areas predicted to lose part of the diversity of hoverflies. It is shown that species with limited distribution in the future will not experience a greater reduction of its area in relation to the widespread species. Also, based on the current maps of potential distribution and assessed rarity of species,priority areas important for the survival of hoverflies in Southeast Europe were established. By using linear regression and linear mixed effect models, the interdependence between functional traits and the estimated changes in the range size was tested. Traits affecting the changes in range size of hoverflies were determined. The established concept can be used for the detection of species that are not yet considered endangered, but because of their biological and ecological traits have the potential to become threatened, and therefore deserve the attention of conservationists.&nbsp; This results can largely be used to create a systematic conservation plan for the preservation of hoverflies in Southeast Europe.</p>
2

VULNERABILIDADE E RESILIÊNCIA DE POPULAÇÃO TRANSFERIDA DE ÁREA DE RISCO AMBIENTAL PARA ÁREA URBANIZADA - REGIÃO NOROESTE DE GOIÂNIA GO.

Costa, Celnia Teresinha Bastos de Paula 30 June 2009 (has links)
Made available in DSpace on 2016-08-10T10:53:53Z (GMT). No. of bitstreams: 1 CELNIA TERESINHA BASTOS DE PAULA COSTA.pdf: 18491292 bytes, checksum: 034852920dc2850216bedad4fcd5aaed (MD5) Previous issue date: 2009-06-30 / The dissertation about the vulnerability and the resilience of the population transferred from an area of environmental risk to an urbanized area, Goiania - Go Northwest Region, is the quality-quantitative exploratory study in which the survey information was accomplished by the means of primary research and the survey of secondary data.The primary research was held through interviews that were information wise saturated reaching 10 subjects / women that were intentionally selected. The objective was to identify the aspects that indicate the social, environmental, health vulnerability and the resilience of the residents transferred from the risk areas such as Northwest Region in Goiania Go, to neighbourhoods as Sítios de Recreio Estrela D alva e Residencial Recanto do Bosque . The criteria adopted to the inclusion in the research were: to be over 18 years old, an area of risk resident for at least 2 years in which was transferred to the two selected neighbourhood within less than a year. The information obtained was organized in different categories: Childhood, youth, family relationships, history of violence, drug abuse, affectivity, sexuality, health, schooling level, and the daily environment that they used to live and current live today, selected and identified in the tables and speech. The speeches were sharpened from the reflexive and comprehensive reading. They make reference to a low income population that are culturally poorly instructed, expressively youth and that counts with the State power within the housing program that in the first moment surpassed a social, environmental and health vulnerability, and yet does not mean that these residents are prepared to face the adverse social and environmental situations that are already being configured in this surroundings. The results will be presented to the local population so that they aknowloge their own reality and to the local authority so that it can be a reference for the politics and amendments for that area or city. / A dissertação sobre a vulnerabilidade e resiliência de população transferida de área de risco ambiental para área urbanizada - Região Noroeste de Goiânia / GO, é um estudo exploratório quali-quantitativo cujas informações foram levantadas por meio de pesquisa primária e de dados secundários. A pesquisa primária constituiu em entrevistas por saturação de informações a 10 sujeitos / mulheres, selecionadas intencionalmente. Teve como objetivos identificar a vulnerabilidade social, ambiental, de saúde e a resiliência dos/as moradores/as transferidos/as de áreas de risco de Goiânia/ Região Noroeste para a área da pesquisa - Sítios de Recreio Estrela D alva e Residencial Recanto do Bosque . Os critérios de inclusão dos sujeitos na pesquisa foram: ser responsável pela família, ser morador/a maior de 18 anos, ser ou não, originário do local, mas ter residido em área de risco no mínimo por 2 (dois anos), e que foram transferidos/as há menos 1 (hum) ano, para a atual área de estudo. Os dados obtidos foram identificados, selecionados e organizados em quadro, tabelas, gráficos e cruzados a partir da leitura reflexiva e compreensiva dos discursos identificados nas variáveis agrupadas nas seguintes categorias 1. Relato sobre a vivencia nas diferentes fases de desenvolvimento desde o convívio familiar e social e de seu cotidiano na área de risco e no ambiente em que vive hoje; 2. Acesso aos Serviços e Equipamentos Públicos; 3. Características do meio ambiente - área da pesquisa. Conclui-se que é uma população de baixa renda, com pouco nível de instrução, com um percentual expressivo de jovens e, que foi integrada à região, pelo Poder Público em programas de moradia. No 1º momento, a população superou uma situação de vulnerabilidade social, ambiental e de saúde o que não significa que estarão imunes às situações adversas sociais e ambientais que já estão se configurando no novo ambiente, na falta de monitoramento das diferentes Instituições Municipais. Os resultados serão apresentados à população local para que se aproprie do conhecimento de sua realidade e, encaminhados aos Gestores do Município, como informações preliminares para subsidiar Políticas Públicas.

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