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Rozprawy doktorskie na temat „Biodiversity Status”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Silan, Giulia <1991&gt. "Grassland biodiversity: habitat types, ecological processes and conservation status." Doctoral thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20598.

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Under the global change scenario, it is increasingly important to monitor habitat and ecosystem attributes to prevent their loss and degradation. While different approaches have been proposed to achieve this goal, little effort has been devoted in linking the monitoring of habitat attributes with the ecosystem services provided. The present research was aimed at filling this gap by assessing the relationship between environmental and biotic attributes of grassland communities and the provisioning of four ecosystem services (i.e., biodiversity, productivity, climate regulation and pollination).

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Andersson, Niki. "Biology and biodiversity of tardigrades in the world and in Sweden : Current status and future visions." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-130508.

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Tardigrades are small water-dwelling invertebrates that can live almost anywhere in the world. Even though they are well-known our knowledge about them is still scarce. The aim of this study was therefore to explore our current knowledge about tardigrades by: (1) explore their global phylogeny and biogeography based on bioinformatics (2) screen for tardigrades in select locations of northern Sweden and compare with other Swedish locations, and (3) identify at least one tardigrade from northern Sweden and explore the published biomarkers for further identification. The bulk of this thesis was b

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Gagnon, Jennifer. "A Global Conservation Assessment of Temperate Forests: Status and Protection." ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/45.

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Global biodiversity protection requires the development of protected areas that include representative samples of different ecosystems and their associated biodiversity (Dudley 1992, Scott et al. 2001a). I compared long-term decline and protection of forests in three major biomes; boreal, temperate and tropical. I found that forests in the temperate biome are less abundant and less protected than forests in the boreal and tropical biomes. I conducted regional analyses for five continents on the degree of protection of temperate forests across naturally occurring geographic and elevationa

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Shaw, Lorna. "Investigating the role of socioeconomic status in determining urban habitat quality for the house sparrow, Passer domesticus." Thesis, University of Exeter, 2009. http://hdl.handle.net/10036/99876.

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Urban areas are increasingly recognised as an important resource for wildlife, as studies have shown that gardens, parks and brownfield sites can contain high insect and plant diversity. Urban centres can also provide resources for species of conservation concern, and it is therefore important to monitor urban habitat quality and ensure the maintenance of urban biodiversity. However urban habitats are often difficult to monitor effectively due to access and sight restrictions in built up areas. This thesis investigates urban habitat quality in relation to an urban specialist species, the House

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Daniels, Fahiema. "The use of stable isotopes to determine trophic status and seasonal variability in the diet of Acomys subspinosus." Thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/26061.

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Hatchwell, Paul K. "A national biodiversity audit of conservation and management status of vascular plant flora in Mexico." Thesis, University of Salford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402643.

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Estopinan, Joaquim. "A predictive approach to determining the joint conservation status of species." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2023. http://www.theses.fr/2023UMONS062.

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Les modèles de distribution d'espèces (SDMs) ont pour but d'apprendre les préférences environnementales des espèces et de projeter leur distribution géographique.Les récentes percées dans le domaine de l'apprentissage profond, associées à l'explosion des données sur la biodiversité, ont conduit au développement d'une nouvelle génération de modèles appelés deep-SDMs.Dans cette thèse, nous explorons leur application pour la conservation de la biodiversité.Tout d'abord, nous évaluons la contribution des séries temporelles d'images satellites en tant que covariables environnementales.La capture de

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Nguyen, Hoang Khanh Linh, Ngan Ha Trinh, and Quang Tan Nguyen. "Study on the status and effectiveness of coastal wetland utilization in Duy Xuyen district, Quang Nam province." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A32576.

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This paper aims to assess the current status and effectiveness of coastal wetland utilization in Duy Xuyen district, Quang Nam province, and to propose solutions to improve land use and conserve the existing wetlands of the locality. Research results show that there are five types of wetlands in Duy Xuyen district: wetlands with tidal forests, streams, freshwater ponds, aquaculture ponds, and irrigated land. The wetland areas in Duy Xuyen district are mainly distributed in 3 communes: Duy Thanh, Duy Nghia and Duy Vinh and there is a noticeable decrease in the period from 2010 to 2016. The calc

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Van, Eeden Daniël Greyling. "Aspects of the ecology and conservation status of selected wildlife in and around Tembe Elephant Park, KwaZulu-Natal, South Africa." Connect to this title online, 2005. http://upetd.up.ac.za/thesis/available/etd-03232007-095314/.

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Watson, Travis. "Not All Pollinator Gardens are Created Equally: Determining Factors Pertinent to Improving Pollinator Garden Effectiveness." Digital Commons @ East Tennessee State University, 2021. https://dc.etsu.edu/etd/3876.

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Increasing evidence documenting the decline of insect populations, resulting from increasing human disturbances has resulted in efforts to establish pollinator gardens to provide additional resources for insect populations. However, our understanding of biotic and abiotic garden characteristics important for attracting and sustaining pollinator diversity is limited. Here, we evaluated 17 pollinator gardens to evaluate the effect of five biotic and three abiotic garden characteristics on pollinator species richness, abundance, and proportional representation of four pollinator functional groups

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Bhatia, Sarika. "Documentation of Biodiversity Impacts (Including Cumulative Biodiversity Impacts) in Environmental Impact Statements." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc278173/.

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In the United States, biodiversity impact assessment has historically received little attention. Responding in 1993, the Council on Environmental Quality (CEQ) released guidelines on incorporating biodiversity into environmental impact assessment under the National Environmental Policy Act of 1969. The objectives of the study here were to identify the level of documentation of biodiversity impact assessment in sample Environmental Impact Statements (EISs); identify whether in the years following the release of 1993 CEQ guidelines any significant changes have taken place in assessment of biodi

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Maciejewski, Lise. "Reconnaissance et dynamique récente des habitats forestiers dans le contexte de la Directive Habitats-Faune-Flore." Electronic Thesis or Diss., Paris, AgroParisTech, 2021. http://www.theses.fr/2021AGPT0001.

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En 1992 en Europe, grâce à la Directive Habitats-Faune-Flore, les habitats naturels sont devenus des objets à conserver au même titre que les espèces, élargissant ainsi le domaine d’actions des politiques publiques à un autre niveau d’organisation de la biodiversité. Mais la reconnaissance tardive de leur valeur de conservation, ainsi que des lacunes dans leurs définitions sont en partie responsables de l’absence de séries temporelles de données sur les habitats à l’échelle nationale. Cela limite notre capacité à surveiller et évaluer leur état de conservation, et à adapter les actions de cons

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Duncan, Imogen May. "Contrasting biodiversity values in four states of Eastern Province thornveld." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1003759.

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Land use and land transformation are major threats to biodiversity. Only a small percentage of land and thus biodiversity is protected within reserves. The majority of biodiversity lies in the hands of private and communal farmers and in order to protect biodiversity they must perceive it as having some value and have the means and incentive to conserve it. This study examined two things: (i) the relationship between biodiversity and measures of ecosystem health, range condition, primary production and presence of useful plants that would be expected to be of relevant use to land users, (ii) t

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Moulton, Stephen R. (Stephen Richard). "Biodiversity of Caddisflies (Trichoptera) of the Interior Highlands of North America." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278224/.

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Caddisflies (Trichoptera) were collected from over 500 different locations throughout the Interior Highlands (Ozark, Ouachita, Arbuckle, and Wichita Mountains) between March 1990 and March 1994. I systematically sampled representative lotic and lentic habitats in 131 natural watersheds that comprise the 17 different physiographic subregions of this area. From my examination of approximately 60,000 specimens, surveys of regional museum collections, and review of literature records, I document 229 species distributed in 16 families and 58 genera. Included in this total are 27 endemic species and

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15

Allen, James A., and Karissa M. Ramstead. "High-Elevation Wet Meadows in Arizona: Distribution, Threats, and Biodiversity." Arizona-Nevada Academy of Science, 2010. http://hdl.handle.net/10150/296705.

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Abbott, John C. "Biodiversity of Dragonflies and Damselflies (Odonata) of the South-Central Nearctic and Adjacent Neotropical Biotic Provinces." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc501251/.

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The south-central United States serves as an important biogeographical link and dispersal corridor between Nearctic and Neotropical elements of western hemisphere odonate faunas. Its species are reasonably well known because of substantial collections, but there has been no concerted effort to document the extent of biodiversity and possible geographic affinities of dragonflies and damselflies of this region. The recent discoveries of Argia leonorae Garrison, Gomphus gonzalezi Dunkle and Erpetogomphus heterodon Garrison from southern and western Texas and northern Mexico suggest that Odonata s

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Rondon, de Nunez Leonor Mariasole. "United States and Venezuelan high school students' knowledge of and attitudes towards biodiversity." Online version, 2000. http://www.uwstout.edu/lib/thesis/2000/2000rondonl.pdf.

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Harper, Leah Wheelbarger. "Plant Biodiversity across Three Successional Stages in Forests of Southern Illinois." OpenSIUC, 2020. https://opensiuc.lib.siu.edu/theses/2794.

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Since the time of European settlement, land-use history, management practices, the introduction of non-native invasive species (NNIS), and climate change have dramatically changed the successional pathways of Southern Illinois forests. Biodiversity is considered essential for ecosystem health and resiliency, so understanding the impact theses forest changes have on biodiversity is necessary to guide future management decisions. This study was conducted at Touch of Nature Environmental Center (TONEC) in Southern Illinois using the Shannon diversity index (H') to compare the levels of biodiver

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Rondon, Michelle Viviane Sá dos Santos. "Biodiversity of intestinals parasites in wild mammals from two locations of São Paulo States." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315158.

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Orientador: Marlene Tiduko Ueta<br>Tese ( doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-17T12:24:47Z (GMT). No. of bitstreams: 1 Rondon_MichelleVivianeSadosSantos_D.pdf: 5998356 bytes, checksum: 92f7ee4c29f1458fa4d49e970a955c26 (MD5) Previous issue date: 2010<br>Resumo: Os parasitas ocorrem praticamente em todos os níveis tróficos e sua transmissão pode depender da presença de uma variedade de hospedeiros intermediários, paratênicos e definitivos dentro do ecossistema. Exercem importantes efeitos sobre as populações de seus hospe

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Grove-Fanning, William. "Biodiversity Loss, the Motivation Problem, and the Future of Conservation Education in the United States." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc103321/.

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The purpose of this dissertation is to make sense of two sets of reactions. On the one hand, Americans can barely lift a finger to help threatened and endangered species while on the other, they routinely come to the aid of human victims of disaster. I argue that in contrast to cases of human tragedy, for the biodiversity crisis conservationists are faced not only with the familiar yet arduous task of motivating the American public to care for living other-than-humans, but they are also saddled with having to overcome the motivation problem of future ethics. The motivation problem consists i

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Yuen, Sze-ki, and 袁施琪. "Conservation policy in China and USA: a comparative study." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B26668956.

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Fishburn, Isla Sian. "Patterns of investment in biodiversity conservation across the United States by the non-governmental organisation sector." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669222.

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Schultz, Courtney Allison. "Cumulative effects analysis in U.S. Forest Service decision-making." Diss., [Missoula, Mont.] : The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-06102009-101714.

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Sudan, Robinson. "The effects of forest age and management on bee communities of production forests in the southern United States." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2184.

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Processes structuring bee communities in agricultural landscapes are well-documented compared to those in other anthropogenic landscapes, like production forests. Forests across the temperate zone have historically been under-sampled, in part due to the perception that they provide little habitat to support diverse bee communities. While research suggests that early successional habitats support high levels of bee species richness and abundance, little empirical evidence exists to support the notion that forests, in turn, do not. To understand the relationship between forest successional age a

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Maharaj, Shobha S. "The impact of climate change on the small island developing states of the Caribbean." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:914cc340-83e1-4ea4-b985-fe863b1dea7d.

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Small Island Developing States (SIDS) of the Caribbean are one of the world’s ‘hottest’ ‘biodiversity hotspots’. However, this biodiversity continues to be threatened by habitat loss, and now, by climate change. The research reported here investigated the potential of species distribution modelling (SDM) as a plant conservation tool within Caribbean SIDS, using Trinidad as a case study. Prior to the application of SDM, ancillary analyses including: (i) quantification and mapping of forest cover change (1969 to 2007) and deforestation rates, and (ii) assessment of the island’s vegetation commun

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Klinka, Karel. "Plant diversity in old-growth and second-growth stands in the coastal rainforests of British Columbia." Forest Sciences Department, University of British Columbia, 1997. http://hdl.handle.net/2429/652.

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One of the human activities impacting biodiversity is the cutting of old-growth forests. In response to the controversy surrounding the cutting of old-growth in the coastal rainforest of BC, the Ministries of the Environment and Forests have produced biodiversity guidelines that are to be applied when manipulating stands in the provincial forest. This study augments these guidelines by investigating the diversity differences between second-growth and old-growth forests in relation to site quality. We demonstrate how standlevel plant diversity differs between 40-year-old and old-growth stand

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Dalin, Peter. "Food-web interactions and population variability of leaf beetles in managed and natural willow stands /." Uppsala : Dept. of Entomology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s303.pdf.

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Elliott, Brent Gordon. "Implications of forest management techniques for biodiversity, species and ecosystem diversity, among Lepidoptera in planted and naturally regenerated jack pine stands." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq23295.pdf.

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Martínez, López Javier. "Establecimiento y modelización de indicadores vegetales del estado ecológico de humedales mediterráneos semiáridos salinos= Modelling and establishment of plant indicators of ecological status for semiarid mediterranean saline wetlands." Doctoral thesis, Universidad de Murcia, 2014. http://hdl.handle.net/10803/132962.

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En 1971 el convenio internacional RAMSAR sobre la Conservación de los Humedales y las Aves Acuáticas comienza ya a fomentar la investigación sobre los humedales, refiriéndose a la necesidad de una mejor información científica para evaluar correctamente la situación de los mismos. Más recientemente la Directiva Marco Europea del Agua (DMA) establece que son precisos principios comunes para mejorar la protección de las aguas comunitarias en sus aspectos cuantitativos y cualitativos y proteger los ecosistemas acuáticos, así como los humedales que dependen directamente de ellos. Este es el caso de

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Aboul-Khair, Shahira. "An Evaluation of Species Recovery under the U.S. Endangered Species Act." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31854.

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The U.S. Endangered Species Act (U.S. ESA) is one of the oldest pieces of legislation to protect endangered species. The bodies responsible for administering the U.S. ESA have published species Biennial Recovery Statuses (BRSs) in Reports to Congress on the Status of Endangered and Threatened Species. We found that expert assessments of species recovery trends match BRSs reasonably well; however, there appears to be a weak relationship between the BRSs and available data tracking species abundance and range trends. We aimed to establish whether the recovery trends of species examined were dete

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Lazdinis, Marius. "Connecting social and ecological systems : towards an integrated toolbox for assessment of forest policy implementation /." Uppsala : Dept. of Conservation Biology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s315.pdf.

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Vanden, Bossche Jean-Pierre. "Typologie et qualité biologique du réseau hydrographique de Wallonie basées sur les assemblages des macroinvertébrés." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210955.

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<p align="justify"><i>Typologie des cours d’eau en Wallonie et caractérisation par la faune invertébrée</i><br>Vingt-cinq types de cours d’eau ont été définis en Wallonie d’après les termes de la Directive Cadre pour l’Eau en tenant compte des facteurs obligatoires et optionnels rassemblés sous trois critères :la taille (du « ruisseau » à la « très grande rivière »), la pente (faible, moyenne et forte), et cinq régions naturelles (la région limoneuse, le Condroz, la Famenne, l’Ardenne et la Lorraine belge, résumant les facteurs obligatoires altitude, latitude, longitude et géologie). Une appro

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Kolodinska, Brantestam Agnese. "A century of breeding - is genetic erosion a reality? : temporal diversity changes in Nordic and Baltic barley /." Alnarp : Dept. of Crop Sciences, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200530.pdf.

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Martins, Rafael. "Composição e estrutura vegetacional em diferentes formações na floresta Atlântica, sul de Santa Catarina, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/26296.

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Florestas pluviais tropicais, entre elas a Floresta Atlântica, são formações de elevada diversidade e riqueza o que as torna muito complexas. Elucidar os mecanismos que mantêm esta diversidade constitui o foco das abordagens ecológicas atuais. O objetivo do presente estudo, além de contribuir para o melhor conhecimento florístico-estrutural da Floresta Atlântica, foi o de avaliar as relações entre espécies e o ambiente, a partir da heterogeneidade florística em respostas a gradientes ambientais. O estudo foi conduzido em três formações florestais no sul Catarinense, compreendendo um fragmento

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Brooks, Ames Sophie. "The Impact of Wildlife Conservation Nonprofits: An Examination of Environmentalism and Organizational Culture in the United States and Ecuador." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/scripps_theses/251.

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This thesis examines the social impact of wildlife conservation nonprofits (WCNs) in the United States and Ecuador. Cultural developments of environmentalism provide the social context for WCNs, informing trends in participation and conflict. WCNs rely on public support and engagement to advance their mission, which requires an image of legitimacy and healthy organizational culture. This thesis argues the relationship between WCNs and the public impacts their organizational sustainability and their success as a conservation institution.

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Bubner, Ben [Verfasser], and Reinhard h. c. [Akademischer Betreuer] Hüttl. "Host specificity and biodiversity of ectomycorrhizal fungi in pure and mixed stands of Scots pine (Pinus sylvestris L.) and beech (Fagus sylvatica L.) / Ben Bubner. Betreuer: Reinhard h.c. Hüttl." Cottbus : Universitätsbibliothek der BTU Cottbus, 2013. http://d-nb.info/1036637999/34.

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Padullés, Cubino Josep. "Socioeconomic status determines floristic patterns in suburban domestic gardens: implications for water use and alien plant dispersal in the Mediterranean context." Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/321104.

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The recent growth of low-density urban developments in the Mediterranean coast has led to an increase in the number of private domestic gardens. This thesis examines the flora, features and management practices of 258 private gardens in the Alt Empordà region in Catalonia. We also calculated water requirements of gardens based on species composition and land cover, and determined whether they can be predicted from the socioeconomic, demographic and cultural characteristics of households. Of the 635 taxa identified, 68% were exotic. Moreover, 39 species have been considered potentially invasive

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Jaonalison, Henitsoa. "Les premiers stades de vie des poissons dans le SO de Madagascar : éléments pour une meilleure connaissance de la biodiversité et une meilleure gestion des ressources exploitées." Thesis, La Réunion, 2019. http://www.theses.fr/2019LARE0030.

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Les écosystèmes marins qui fournissent de multiples services écosystémiques indispensables au bien-être de l’humanité sont actuellement menacés par la surexploitation des ressources et l’utilisation d’engins destructifs. Ceci conduit à une perte à l’échelle globale de 20% des mangroves, 19% des récifs coralliens et 110 km2 par an des herbiers. Les habitats côtiers qui soutiennent jusqu’à 20% de la production globale de la pêche sont les plus touchés, notamment dans les pays les moins avancés comme Madagascar. Dans ce pays, 87% des écosystèmes récifaux sont menacés, notamment dans le sud-ouest

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Klinka, Karel, D. Bradley Collins, and Christine Chourmouzis. "Investigation into the productivity of single- and mixed-species, second-growth stands of western hemlock and western redcedar." Forest Sciences Department, University of British Columbia, 2001. http://hdl.handle.net/2429/698.

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In BC, it is required that harvested areas be regenerated with a mixture of tree species whenever appropriate to the site. This policy is based upon the assumption that increases in stand productivity, reliability, and/or biodiversity can be achieved in mixed-species stands. However, the knowledge justifying this policy is at best incomplete. Differences in forest productivity of mixed-species stands have been attributed mostly to competition. However, an increasing number of studies are providing evidence to support alternate theories, in which positive plant interactions play a major role

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Quevedo, Báez Luis Alberto. "Effects of global change on benthic communities of the lower Ebro River: implications for the assessment of the ecological status." Doctoral thesis, Universitat Rovira i Virgili, 2015. http://hdl.handle.net/10803/308131.

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Aquesta tesi doctoral avalua l’estructura i composició de comunitats bentòniques ( diatomees i macroinvertebrats) del tram baix de l’Ebre en funció d’alteracions del cabal natural del riu causades per la presència del sistema de regulació, i canvis del regim de temperatura causats per un increment sostingut de la temperatura de l’aigua (produït per la central nuclear d’Ascó). Inicialment, tota la variabilitat hidrogeomorfològica del baix Ebre va ser considerada i van ser analitzades mostres recollides al llarg de cinc trams del riu, integrant diferents anys i estacions per tal d'avaluar els

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Hazell, Per. "Conservation and yield aspects of old European aspen Populus tremula L. in Swedish forestry /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5636-3.pdf.

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Axelsson, Robert. "Forest policy, continuous tree cover forest and uneven-aged forest management in Sweden's boreal forest /." Uppsala : Institutionen för skogens produkter, Sveriges lantbruksuniversitet (SLU), 2008. http://epsilon.slu.se/10947312.pdf.

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Alestra, Tommaso. "Impacts of altered physical and biotic conditions in rocky intertidal systems: implications for the structure and functioning of complex macroalgal assemblages." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/10025.

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Complex biogenic habitats created by large canopy-forming macroalgae on intertidal and shallow subtidal rocky reefs worldwide are increasingly affected by degraded environmental conditions at local scales and global climate-driven changes. A better understanding of the mechanisms underlying the impacts of complex suites of anthropogenic stressors on algal forests is essential for the conservation and restoration of these habitats and of their ecological, economic and social values. This thesis tests physical and biological mechanisms underlying the impacts of different forms of natural and hum

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Joly, Carolina 1980. "Pesquisa científica em áreas protegidas do litoral norte de São Paulo : limitações e perspectivas visando a conservação." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/281275.

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Orientadores: Simone Aparecida Vieira, Leila da Costa Ferreira<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciências Humanas<br>Made available in DSpace on 2018-08-25T21:54:19Z (GMT). No. of bitstreams: 1 Joly_Carolina_D.pdf: 2495903 bytes, checksum: 9b23f1820bfd1db0e20f1ccd9b2d4739 (MD5) Previous issue date: 2014<br>Resumo: A presente pesquisa de doutorado investigou a contribuição das pesquisas acadêmicas para a manutenção e manejo de áreas protegidas, considerando a importância dessas áreas como estratégia fundamental para a conservação da biodiversida

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Coll, Montserrat Josep. "Avaluació dels esculls artificials i de les reserves marines com a eines de gestió dels recursos íctics litorals a les Illes Balears." Doctoral thesis, Universitat de les Illes Balears, 2013. http://hdl.handle.net/10803/113367.

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Aquesta tesi doctoral ha demostrat que els esculls artificials (ARs) de les Balears presentaren una colonització del 74% de les espècies en els primers 17 mesos de fondeig, i que el substrat original del lloc determinà la velocitat de colonització. El principal efecte dels ARs ha estat el de concentrar peixos de mida mitjana i grossa, si bé s’ha demostrat que aquest efecte no ha incrementat el risc de sobreexplotació en l’àrea d’influència. Les reserves marines de Balears han servit per recuperar les poblacions de peixos d’interès pesquer, tant a zones de màxima protecció com a zones parcial

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Kim, Sooil. "Conserving biodiversity in Korea review of the present status and ideas for future action /." 1992. http://catalog.hathitrust.org/api/volumes/oclc/25963864.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1992.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 79-95).

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Sjöwall, Philip, and Robert Lundström. "The environmental and anthropogenic impact onfreshwater biodiversity in Lajeado, RS, Brazil. : A study of using dragonflies as indicators for theenvironmental status in freshwater biomes." Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-32616.

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Fragmentation of the Atlantic rainforest and alteration of waters due to agricultural expansion hasgreatly affected the species diversity in Brazil. In this study, we investigate how different environmental factors affect dragonfly communities and dragonfly species richness in sixteen different locations in Rio Grande do Sul, Brazil. A total of 328 individuals distributed among 46species and eight families were collected. At each sampling location the water was analyzed andthe surrounding environment recorded and plotted. Our goal was to investigate if we could findspecies for use as bio indic

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Rampheri, Mangana Berel. "An assessment of the implication of involving local communities in biodiversity conservation : a case study of Blouberg Nature Reserve in Limpopo, South Africa." Thesis, 2020. http://hdl.handle.net/10386/3440.

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Thesis (M.Sc. (Geography)) -- University of Limpopo, 2020<br>This work aimed at assessing the implications of involving local communities in biodiversity conservation in Blouberg Nature Reserve (BNR) in Limpopo Province, South Africa. To achieve this objective, firstly biodiversity status before and after involving local communities in conservation initiatives was assessed using multi-temporal medium-resolution Landsat series data and species diversity indices. The results showed that there were significant variations (α = 0.05) in tree species diversity in BNR for before and after involving l

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BESSA, DA COSTA ANTUNES RODRIGUES Adriana Aparecida. "Traditional local communities in international law." Doctoral thesis, 2013. http://hdl.handle.net/1814/30897.

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Defence date: 13 December 2013.<br>Examining Board: Professor Francesco Francioni, European University Institute (Supervisor); Professor Martin Scheinin, European University Institute; Professor Peter Hilpold, Universität Innsbruck; Professor Federico Lenzerini, Università di Siena.<br>PDF of thesis uploaded from the Library digital archive of EUI PhD theses<br>One of the most important innovations of the 1992 Rio Summit was the consolidation of a synergetic approach between human rights and environmental conservation and the introduction of traditional local communities as new subjects of rig

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Levitsky, Ariel. "The utility of standardized DNA markers in species delineation and inference of the evolutionary history of symbiotic relationships in the Malagasy ant Melissotarsus insularis Santschi, 1911 and its scale associate (Diaspididae)." Thesis, 2013. http://hdl.handle.net/10214/6657.

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A subset of 199 Melissotarsus insularis and 130 Diaspididae specimens were analyzed to 1) determine the species status of M. insularis and 2) to explore the relative intimacy of the relationship between M. insularis and Diaspididae. An analysis of molecular variance and the observed lack of association between clades and distinct habitats on the M. insularis phylogeny suggested that while M. insularis exhibits isolation by distance, it does not apparently diversify by habitat. When cryptic COI pseudogenes were accounted for, the majority of the genetic diversity exhibited by M. insularis was l

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