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Rozprawy doktorskie na temat „Ecosystem trends”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Butt, Nathalie. "Patterns and trends in climate and ecosystem composition and dynamics in lowland Amazon rain forests." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508755.

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Olechnowski, Brian Frederick Maximilian. "An examination of songbird avian diversity, abundance trends, and community composition in two endangered temperate ecosystems riparian willow habitat of the Greater Yellowstone Ecosystem and a restored tallgrass prairie ecosystem, Neal Smith National Wildlife Refuge /." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3396959.

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Svensson, Magnus. "Carbon dynamics in spruce forest ecosystems - modelling pools and trends for Swedish conditions." Doctoral thesis, Stockholm : Department of Real Estate and Construction Management, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4240.

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Weatherholt, Riley Madison. "Road Salt Runoff into Freshwater Wetlands: Trends in SpecificConductance and Ion Concentration." Kent State University Honors College / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1557152479759316.

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Aralova, Dildora, Kristina Toderich, Ben Jarihani, et al. "Environmental resilience of rangeland ecosystems: Assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35118.

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The Central Asian (CA) rangelands is a part of the arid and semi-arid ecological zones and spatial extent of drylands in CA (Tajikistan, Kazakhstan, Uzbekistan, Kyrgyzstan, and Turkmenistan) is vast. Projections averaged across a suite of climate models, as measured between 1950-2012 by Standardised Precipitation-Evapotranspiration Index (SPEI) estimated a progressively increasing drought risks across rangelands (Turkmenistan, Tajikistan and Uzbekistan) especially during late summer and autumn periods, another index: Potential Evapotranspiration (PET) indicated drought anomalies for Turkmenist

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Liubachyna, Anna. "State forest management organizations in the EU: current performance and future trends." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3423271.

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Public institutions own the greater proportion of the world’s forests and wooded areas —about 86%. In general, there are important regional variations of the proportion of state and private or municipal ownership. Recent European studies in the forestry sector show that nearly half of the European Union (EU) forests are publicly owned – around 42%. Considering the importance of forest resources, it is essential to ensure they are used sustainably. National governments and different agreements regulate use of forest resources; however, the actual manager has the greatest responsibility over t

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Romo, Leon Jose Raul. "Examining Trends in Post-Disturbance Ecosystem Dynamics in the Southwestern United States and Northwestern Mexico Using Remote Sensing Time-Series Data and Land Cover Change Detection." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/205420.

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New forms of disturbance, and alteration of current disturbance regimes in arid and semiarid ecosystems, have resulted in the modification and degradation of large regions. This research explores vegetation response as a consequence of two different disturbance events in the southwestern US and northwestern Mexico. This topic was explored in this dissertation utilizing remotely sensed geospatial information in three separate studies.The first study explores the development of methods to assess the effectiveness of pre-fire restoration efforts, by evaluating vegetation response as a function o

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8

Blight, Louise Katherine. "Glaucous-winged gulls Larus glaucescens as sentinels for a century of ecosystem change : long-term trends in population, diet, and egg production in North America's Salish Sea." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43674.

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Ecological studies characterising population trends over decades or centuries can help to describe the range of variability in a study system, with well-studied species being strong candidates for providing the long-term data required for retrospective studies. Seabirds represent useful real-time monitors of marine systems and may also play this role in studies characterizing historical ecological change. The glaucous-winged gull L. glaucescens is a generalist marine bird occurring in the Salish Sea, an urbanized coastal area of southwestern British Columbia and northwestern Washington, where

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9

Brotz, Lucas. "Changing jellyfish populations : trends in large marine ecosystems." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/38193.

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Although there are various indications and claims that jellyfish have been increasing at a global scale in recent decades, a rigorous demonstration to this effect has never been presented. As this is mainly due to scarcity of quantitative time series of jellyfish abundance from scientific surveys, an attempt is presented here to complement such data with non-conventional information from other sources. This was accomplished using the analytical framework of fuzzy logic, which allows the combination of information with variable degrees of cardinality, reliability, and temporal and spatial cover

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10

Starick, Anja. "Kulturelle Werte von Landschaft als Gegenstand der Landschaftsplanung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-213546.

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Um kulturelle Werte von Landschaft in Landschaftsplanungen stärker zu berücksichtigen wurden sie in dieser Arbeit als kulturelle Landschaftsfunktionen bestimmt, die sich in ein System aus Landschaftsfunktionen einordnen, wie es Landschaftsplanungen insgesamt zugrunde liegen kann. Neben bereits ausdifferenzierten naturhaushalterischen Landschaftsfunktionen umfasst es damit folgende kulturelle Landschaftsfunktionen: - bedeutungstragende und sinnstiftende Funktion - Handlungsfunktion - ästhetische und stimmungsstiftende Funktion - Kommunikationsfunktion - Wissensfunktion - Kontinuitätsfunk

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11

Farooq, Jan Verfasser], Hermann [Akademischer Betreuer] Behling, Lisa [Akademischer Betreuer] Schüler, et al. "Palynological studies and Holocene ecosystem dynamics in north western Khyber Pakhtunkhwa Province of Pakistan in the Hindu Kush Himalayan region : Trends of pollen grain size variation in C3 and C4 Poaceae species using pollen morphology for future assessment of grassland ecosystem dynamics / Jan Farooq. Betreuer: Hermann Behling. Gutachter: Lisa Schüler ; Erwin Bergmeier ; Markus Hauck ; Elvira Hörandl ; Dirk Hölscher ; Dirk Gansert ; Erwin Bergmeier ; Hermann Behling." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1098531043/34.

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Krasnokutska, Nataliia. "Key trends in modern management." Thesis, NTU "KhPI", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/34935.

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The study has shown the major trends that affect the creation and spread of new methods of management in the information society.The attained results prove the fact that precisely because of the efforts of managers companies can take their rightful place in the business environment, even at the low level of physical resources.

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13

Román, Cuesta Rosa María. "Human and environmental factors influencing fire trends in different forest ecosystems." Doctoral thesis, Universitat Autònoma de Barcelona, 2002. http://hdl.handle.net/10803/3646.

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La mayoría de los bosques del planeta, exceptuando, quizá, el cinturón más húmedo del trópico, han sufrido perturbaciones recurrentes por incendios, desde hace miles de años. Sin embargo, en el último siglo, la combinación de factores socio-económicos y ambientales han alterado la frecuencia y distribución de incendios en casi todos los ecosistemas forestales. Esta mala distribución del fuego ha conllevado la acumulación de este elemento perturbador en ecosistemas poco adaptados a su presencia (e.g. bosques tropicales húmedos), mientras que otros ecosistemas han sufrido los efectos de las polí

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WEHR, RACHEL NICOLE. "LONG-TERM PRECIPITATION TRENDS OF TWO UNIQUELY WATER-LIMITED ECOSYSTEMS: IMPLICATIONS FOR FUTURE SOIL MOISTURE DYNAMICS." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/614199.

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Roughly 40% of the Earth’s land surface is classified as arid or semiarid. These areas are expected to see changes in the frequency and magnitude of precipitation, which could have major implications for soil water resources, vegetation, water supply, and biome evolution. This study analyzed long-term precipitation trends in two water-limited ecosystems with bimodal precipitation regimes: a desert shrubland at the Santa Rita Experimental Range (SRER-SRC) and a mixed conifer system at the Santa Catalina Mountain Critical Zone Observatory (SCM-CZO). Specifically, we analyzed frequency and timing

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15

Mendez-Estrella, Romeo, Jose Romo-Leon, Alejandro Castellanos, Fabiola Gandarilla-Aizpuro, and Kyle Hartfield. "Analyzing Landscape Trends on Agriculture, Introduced Exotic Grasslands and Riparian Ecosystems in Arid Regions of Mexico." MDPI AG, 2016. http://hdl.handle.net/10150/621492.

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Riparian Zones are considered biodiversity and ecosystem services hotspots. In arid environments, these ecosystems represent key habitats, since water availability makes them unique in terms of fauna, flora and ecological processes. Simple yet powerful remote sensing techniques were used to assess how spatial and temporal land cover dynamics, and water depth reflect distribution of key land cover types in riparian areas. Our study area includes the San Miguel and Zanjon rivers in Northwest Mexico. We used a supervised classification and regression tree (CART) algorithm to produce thematic clas

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Petersson, Jess. "Status and Trends Associated with Indigenous Communities Inland Water and the Development of Relevant International Law." The University of Waikato, 2008. http://hdl.handle.net/10289/2512.

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This thesis is written at a time when the world faces many challenges. Gross violation of human rights persists, discrimination against and alienation of marginalized groups continues, the gulf between rich and poor yawns ever wider, and the rapid degradation of the environment continues to gain momentum. One area upon which environmental degradation impacts most crucially is water. In terms of vulnerability and scarcity as a commodity, water has come to be called by some 'the new oil'. Already, water has influenced political strategies and been the cause of wars. The aim of this thesis has be

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17

Pilote, Martin. "Trends in the Exchange of CO2 and CH4 between the Atmosphere and Eastern Canadian Subarctic and Arctic Ecosystems." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33426.

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Significant warming of Arctic and northern regions is ongoing and may greatly alter the carbon cycle of these regions. During the International Polar Year, an extensive study was carried out in the Eastern Canadian subarctic and Arctic in order to characterize CO2 and CH4 exchanges from these potentially sensitive ecosystems. The main objectives of this study were to identify the land cover and environmental factors leading to greatest CO2 and CH4 emissions in a highly heterogeneous subarctic landscape, to quantify interannual variability in the net ecosystem exchange of CO2 (NEE) in subarctic

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18

Zhang, Chi S. M. Sloan School of Management. "A study on cybersecurity start-ups : a financial approach to analyze industry trends, entrepreneurship ecosystems and start-up exits." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104506.

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Thesis: S.M. in Management Studies, Massachusetts Institute of Technology, Sloan School of Management, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 54-57).<br>Now a multi-billion dollar industry, cybersecurity is becoming one of the most attractive industries for investors today. Despite emerging government involvement for cybersecurity governance and even cybersecurity warfare, private sector still dominates cybersecurity today and will remain the backbone of the industry due to its ubiquitous nature and rapid technological evolution. Consequent

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Bocskor, Priscilla. "Shade, Moisture, and Woody Vegetation in Stormwater Management Basins: Influence on Cattail (Typha spp.) Growth." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/72993.

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Stormwater management basins (SWMB) are used to mitigate urban runoff. The Virginia Department of Transportation relies on dry detention basins planted with mowed turfgrass. However, these basins often retain water; resulting in cattail (Typha spp.) and tree colonization. Managing agencies request cattail eradication and trees are also removed. However, if trees were allowed to remain they could alter basin dynamics, making conditions unsuitable for cattails. <p> In a greenhouse study we tested the impact of three shade (heavy, medium, full sun) and soil moisture (dry, moist, flooded) treatm

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DeGomez, Tom, and Melanie Lenart. "Management of Forests and Woodlands (Climate Change and Variability in Southwest Ecosystems Series)." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146920.

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4 pp.<br>This is part of a series of publications on climate change and forests/woodlands<br>Climate change may have dramatic effects on Arizona's forests and woodlands. Wildfires and insects may become of greater concern. Plant species will likely shift in elevation to adapt to the warming conditions.

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21

Schewenius, Maria. "Trees, Temples and Technology : Social values and ecosystem services in a changing urban context, the case of Bangalore." Thesis, Stockholms universitet, Stockholm Resilience Centre, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-179322.

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The pressure on natural resources in urban areas increases as cities grow in size and populations; however, informal institutions as norms and values by ‘common people’ can play a major role for protection of urban greens. As the city of Bangalore, India, rapidly grows in size and population, its green areas are disappearing. In rural parts of India, local people’s notion of certain ecosystems as sacred has rendered the ecosystems protection and contributed to sustenance of ecosystem services’ generation. The aim of this paper is to explore the potential of stewardship of urban greens in a ch

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Kirkpatrick, Erin Jolene. "Green Mind Gray Yard: Micro Scale Assessment of Ecosystem Services." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/884.

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There is a spatial mismatch between the size of the area where people are living and the extent of land needed to ecologically support developed areas. More people are living in urban areas than any time in history, and the resources need to support cities have had to expand to try and meet the demands of increasing urban populations. However, areas of opportunity exist for urban areas to begin to positively contribute towards the available resources in a region. Because a large portion of urban areas is within private control, gaining a baseline understanding of how residents interact with ec

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Nightingale, Joanne M. "Modelling carbon dynamics within tropical rainforest environments using the 3-PG and 3-PGS ecosystem process models /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18498.pdf.

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Cybulski, Walter J. "Assessing the consequences of ozone depletion on ecosystem function effects of ultraviolet-B radiation on plant biomass, tissue quality and litter decomposition /." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1661.

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Thesis (Ph. D.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains ix, 193 p. : ill. Vita. Includes abstract. Includes bibliographical references.

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Ango, Tola Gemechu. "Ecosystem Services and Disservices in an Agriculture–Forest Mosaic : A Study of Forest and Tree Management and Landscape Transformation in Southwestern Ethiopia." Doctoral thesis, Stockholms universitet, Kulturgeografiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-128537.

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The intertwined challenges of food insecurity, deforestation, and biodiversity loss remain perennial challenges in Ethiopia, despite increasing policy interventions. This thesis investigates smallholding farmers’ tree- and forest-based livelihoods and management practices, in the context of national development and conservation policies, and examines how these local management practices and policies transform the agriculture–forest mosaic landscapes of southwestern Ethiopia. The thesis is guided by a political ecology perspective, and focuses on an analytical framework of ecosystem services (E

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Magadlela, Anathi. "The effects of phosphorus (P) deficiency on growth and nitrogen fixation of Virgilia trees from the Cape Floristic Region (CFR)." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79992.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The aim of this study was to determine how P nutrition affects biological nitrogen fixation (BNF) via effects on the N2-fixing bacteria in the nodules of Virgilia species native to the Cape Floristic Region (CFR), South Africa. This was evaluated in 3 separate studies: The first study aimed to determine how phosphorus deficiency affects N nutrition of two legume tree species from the Mediterranean Fynbos ecosystem. This study showed that during prolonged P deficiency, V. divaricata maintained a constant biomass, while V. oroboi

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Dehlin, Helena. "Ecosystem functioning and plant-soil interactions in forests : influences of quality and diversity of resources /." Umeå : Dept. of Forest Vegetation Ecology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200679.pdf.

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Andersson, Rikard. "Historical land-use information from culturally modified trees /." Umeå : Dept. of Forest Vegetation Ecology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200561.pdf.

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El, Make Mahmoud. "Base-cations in relation to weathering of phyllosilicates and forest management in Swedish forest ecosystems /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5899-4.pdf.

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Jonson, Sofia. "Multifunctional production systems in Brazil : Opportunities, barriers, and implementation." Thesis, Mittuniversitetet, Institutionen för ekoteknik- och hållbart byggande, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39250.

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As populations grow and the call for renewable energy increases, so does the demand for biomass. However, the sustainability of biomass production has been debated. Concerns involve both negative environmental impacts from agricultural production, as well as the effects of increased bioenergy use on food security. Multifunctional production systems are a potential solution to these issues where environmental benefits are promoted in addition to maintained or enhanced biomass output. This study investigates multifunctional production systems in Brazil, as well as incentives and barriers for imp

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Duah, Anthony A. "Sustainable utilisation of Table Mountain Group aquifers." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_2705_1373463070.

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<p>The Table Mountain Group (TMG) Formation is the lowest member of the Cape Supergroup which consists of sediments deposited from early Ordovician to early Carboniferous times, approximately between 500 and 340 million years ago. The Table Mountain Group (TMG) aquifer system is&nbsp<br>exposed along the west and south coasts of South Africa. It is a regional fractured rock aquifer that has become a major source of bulk water supply to&nbsp<br>meet the agricultural and urban water requirements of the Western and Eastern Cape Provinces of South Africa. The TMG aquifer system comprises of an app

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32

Heubach, Katja [Verfasser], Rüdiger [Akademischer Betreuer] Wittig, and Ernst-August [Akademischer Betreuer] Nuppenau. "The socio-economic importance of non-timber forest products for rural livelihoods in West African savanna ecosystems: current status and future trends / Katja Heubach. Gutachter: Rüdiger Wittig ; Ernst-August Nuppenau. Betreuer: Rüdiger Wittig ; Ernst-August Nuppenau." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2012. http://d-nb.info/1044093617/34.

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Onelius, Christine, and Lina Sjölin. "Trädens roll i den hållbara staden : En fallstudie av träd i centrala Gävles grönområden." Thesis, Högskolan i Gävle, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36534.

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Den ökade urbaniseringen och klimatförändringarna utgör några av de största utmaningarna vid utvecklingen av hållbara städer. Ekosystemtjänster som vatten- och temperaturreglering samt estetiska tjänster från träd kan bidra till att tackla utmaningar som extremväder och psykisk ohälsa. Gävle kommun har ett gediget hållbarhetsarbete men har inte genomfört någon egen undersökning över hur invånarna upplever de estetiska ekosystemtjänsterna från träd eller undersökt ekosystemtjänster från de vanligaste trädsläktena i staden. Med anledning av detta var syftet att sammanställa befintlig forskning r

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COELHO, JOAQUIM M. S. "Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo, SP." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10108.

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Made available in DSpace on 2014-10-09T12:34:50Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:57:06Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Bureš, Petr. "Výpočet výše majetkové újmy způsobené na lesích v oblastech realizací vodohospodářských staveb." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-234311.

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Problem situations in damage to forests as a result of construction activities is the total of its quantification, because of not only to damage to the forest and the land intended for the performance of the function of the forest, but also to damage to the water feature of the forest. The emergence of the crop damage and forest grounds occurs at the same time damage to the management. Broken water conditions on the forest grounds, inter alia, that the environmental damage (or one of its components), are also material injury for the owner of the forest, because it directly affect the amount of

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Hazelwood, Kirsten. "The role of trophic interactions in shaping tropical tree communities." Thesis, University of Stirling, 2018. http://hdl.handle.net/1893/28637.

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Tropical rainforests contain exceptionally high biodiversity and account for >30% of the world's carbon fixed by photosynthesis. Consequently, there are compelling reasons to deepen our understanding of the mechanisms that maintain these highly diverse forests and of the potential long-term threats to their preservation. An important process shaping tropical plant communities is negative density dependence (NDD). NDD occurs when plant performance is negatively impacted by increased neighbourhood density. Reduced performance at high neighbourhood density is thought to arise through ecological i

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Holušová, Kateřina. "Standardizace a harmonizace znalecké metodiky pro potřeby Forenzní ekotechniky: les a dřeviny." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-234301.

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In the presented thesis is an overview of the current state solved the problem, specifying the inclusion of Forensic Ecotechnique: forest and trees into the forensic sciences in the world and its description as part of special methods of forensic engineering. The results focus on the design of standardized and harmonized processes according to the type of expert opinions. As another of the key results of the work are designed functional biometric parameters for evaluating trees in the functional diagnosis of Methods of contact flora assessment (“CFA”). Application of some methods of measuremen

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Siesa, M. E. "FRESHWATER COMMUNITIES AND BIOLOGICAL INVASIONS: ODONATA, AMPHIBIA AND PROCAMBARUS CLARKII." Doctoral thesis, Università degli Studi di Milano, 2011. http://hdl.handle.net/2434/154018.

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This research work analyses processes and dynamics occurring during the early stages of a biological invasion in freshwater habitats. I analysed processes determining the Procambarus clarkii invasion and the impact on native amphibians and odonates that have complex life cycles, I surveyed 148 among temporary and permanent wetlands of running and standing waters in a region that is at the edge of the invasion range of P. clarkii, I performed repeated sampling sessions in each wetland obtaining both qualitative and quantitative data on freshwater communities, I characterized each wetland using

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Anderson, Sean Charles. "Trends, drivers, and ecosystem effects of expanding global invertebrate fisheries." 2010. http://hdl.handle.net/10222/12813.

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Worldwide, finfish fisheries receive increasing assessment and regulation, slowly leading to more sustainable exploitation and rebuilding. In their wake, invertebrate fisheries are rapidly expanding with little scientific scrutiny despite increasing socio-economic importance. This thesis provides the first global analysis of the trends, drivers, and population and ecosystem consequences of invertebrate fisheries, in general, and sea cucumber fisheries, in particular, based on a global catch database in combination with taxa-specific reviews. Further, I developed new methods to quantify trends

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Alamgir, Mohammed. "Ecosystem services across contrasting forested landscapes in Queensland's Wet Tropics Bioregion: contemporary patterns, processes and likely future trends under a changing climate." Thesis, 2016. https://researchonline.jcu.edu.au/46890/1/46890-Alamgir-2016-thesis.pdf.

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Ecosystem services are the benefits human communities receive from ecosystems that comprise of both goods and services. Forests provide numerous ecosystem services which are necessary for human well-being. Examples include global climate regulation, air quality regulation, cyclone protection, habitat provision, timber and energy. The supplies of most ecosystem services from forested ecosystems are declining across the globe. Furthermore, the rate of decline is higher in tropical forested areas than other forest biomes. The main reasons for this decline are climate change, forest degradation, l

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Nyberg, Elisabeth. "Improved Assessment in Environmental Monitoring of POPs : Using monitoring data from the aquatic ecosystem and human milk." Doctoral thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-134769.

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The thesis deals with several aspects of monitoring of persistent organic contaminants (POPs) in biological matrices, for example choice of sample, sampling design, and statistical treatment of data both for temporal and spatial trends and for compliance towards a set target value. The efficiency has been evaluated through statistical power analyses. Contaminant data from more than 4 decades from the Swedish National Monitoring Programs for monitoring of contaminants in biota (marine, freshwater and human health), has been quantitatively evaluated both temporally and spatially and for complian

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Silva, Sara Raquel Fernandes da. "What is the impact on the Portuguese accommodation´s ecosystem during Covid-19 and how can they adapt to the new reality? - Covid-19: the situation now." Master's thesis, 2021. http://hdl.handle.net/10362/123390.

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Amaral, João Rui Fonseca. "What are the trends in travel & tourism that are emerging during the Covid-19 pandemic and...how can the Portuguese tourism accommodation’s ecosystem adapt to the changes and become competitive in the post Covid-19 world?" Master's thesis, 2021. http://hdl.handle.net/10362/123338.

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Gonçalves, Marisa Alexandra Abreu. "Understanding the Trends of European Startup Ecosystems." Master's thesis, 2016. http://hdl.handle.net/10362/20020.

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The world faces numerous crises, being the economic and financial crisis, the more worrying crisis and which people become more aware, to find solutions to various problems, namely unemployment, especially youth unemployment. Throughout the evolution of the world, entrepreneurship phenomenon went hand in hand with economic and technological development, providing new businesses with innovative concepts, responding to people's needs. Today, entrepreneurship continues to be important to the economies, as it adds new companies with value by presenting people with talent, with creative sense and

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Safara, Joaquim Rosa Martins. "What are the trends in travel & tourism that are emerging during the Covid-19 pandemic and… How can the Portuguese tourism accommodation’s ecosystem adapt to the changes and become competitive in the post Covid-19 world?" Master's thesis, 2021. http://hdl.handle.net/10362/123339.

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Ferretti, Francesco. "THE ROLE OF SHARKS IN MARINE ECOSYSTEMS: EVALUATING OVEREXPLOITED MARINE FISH COMMUNITIES TO DETECT LONG-TERM EFFECTS OF PREDATOR REMOVAL." 2010. http://hdl.handle.net/10222/13171.

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Elasmobranchs are among the oldest and most successful predators in the ocean, yet one of the most vulnerable to the direct and indirect effects of fishing. Many populations are rapidly declining around the world, and an increasing number is listed as threatened or endangered. The broader ecosystem consequences of these declines, and whether other marine predators can replace sharks, are open questions. In this thesis, I used a diverse set of data and modeling techniques to analyze long-term changes in elasmobranch populations in the Mediterranean Sea, and the consequences of shark declines on

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Starick, Anja. "Kulturelle Werte von Landschaft als Gegenstand der Landschaftsplanung." Doctoral thesis, 2015. https://tud.qucosa.de/id/qucosa%3A29941.

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Um kulturelle Werte von Landschaft in Landschaftsplanungen stärker zu berücksichtigen wurden sie in dieser Arbeit als kulturelle Landschaftsfunktionen bestimmt, die sich in ein System aus Landschaftsfunktionen einordnen, wie es Landschaftsplanungen insgesamt zugrunde liegen kann. Neben bereits ausdifferenzierten naturhaushalterischen Landschaftsfunktionen umfasst es damit folgende kulturelle Landschaftsfunktionen: - bedeutungstragende und sinnstiftende Funktion - Handlungsfunktion - ästhetische und stimmungsstiftende Funktion - Kommunikationsfunktion - Wissensfunktion - Kontinuitätsfunk

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Farooq, Jan. "Palynological studies and Holocene ecosystem dynamics in north western Khyber Pakhtunkhwa Province of Pakistan in the Hindu Kush Himalayan region." Thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-0028-8741-2.

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Khyber Pakhtunkhwa (31 ° 49'N, 70 ° 55'E bis 35 ° 50'N, 71 ° 47'E) liegt im Nordwesten Pakistans im Süden Asiens. Das Hindukusch-Gebirge in Afghanistan liegt im Westen, dem indischen Himalaya im Nordosten und die Karakorum Berge südlich vom tibetischen Hochland auf der Nordseite. Diese Arbeit besteht überwiegend aus drei separaten Studien entlang eines 200 km langen Transekts mit einem Höhengradienten ausgehend von den Sedimentbecken im Peshawar Tal (275 m ü.M.) bis hinauf zu den Malam Jabba Hills im Swat-Tal (2600 m ü.M.). Die erste Studie, die auf einer Datengrundlage von 160 Poaceae Arten b

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Carvalho, Ana Clara Caleiro Coelho de. "Digital Startups Accelerators: Characteristics and Evolution Trends." Master's thesis, 2016. http://hdl.handle.net/10362/20023.

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In a period where economies face challenges on a global scale, entrepreneurship is an alternative and viable option for many people. Due to the considerable impact it has on the economic development of a region, many authors have studied this subject throughout the years, so the literature available is quite rich and complete. Entrepreneurial ecosystems include numerous entities that interact with each other in unique symbiosis relationships and these entities may be startups, universities, the government, investors and organizations that provide support to the startups in their development s

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Gantois, Josephine. "All things plants: An ecosystem view of sustainable development." Thesis, 2021. https://doi.org/10.7916/d8-dbx3-0v07.

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Achieving societal well-being goals is inextricably linked to the preservation of many ecosystem functions. This dissertation adopts a plant lens, to contribute to our understanding of sustainable ecosystem functioning. Specifically, it sheds light on some plant physiology, phenology, and ecology processes, which matter for sustainable development: tree growth response to high temperatures, annual fluctuations in the timing of plant flowering, and ecological benefits of crop diversity that translate into economic returns. In addition, it illustrates how large-scale data proxies can be used to

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