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Dissertations / Theses on the topic 'Ecosystem risks'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Горобченко, Тетяна Вікторівна, Татьяна Викторовна Горобченко, Tetiana Viktorivna Horobchenko, et al. "Business risks and opportunities in the management of ecosystem services." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45280.

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Issues connected with value of ecosystems got wide discussions during recent years in context of its goods and services providing, but also improving social and economic welfare. From an economic point of view, ecosystems provide economic agents with significant advantages, or socalled "ecosystem services". For example, forests provide raw materials for wood processing industry, genetic resources give materials for breeding and genetic engineering, rivers provide freshwater for household needs, and wetlands reduce the impact of flooding and enable the development of commercial fisherie

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2

Bergström, Alexander, and Anton Karlson. "Risk management in a business ecosystem." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74730.

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Purpose - The purpose of this thesis is to advance the understanding of risk exposure and management for different roles in business ecosystems. The following research questions have been derived to fulfill this purpose: RQ1: Which risks are different business ecosystem roles exposed to, and in what way? RQ2: How can business ecosystem actors mitigate risks? Method – A single case study has been conducted on a business ecosystem surrounding the development of autonomous cars in the EU. An abductive and qualitative approach has been applied, which allowed the combination of existing literature

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Rodrigues, Ariane de Almeida. "Cerrado national parks beyond biodiversity conservation : cultural ecosystem services and environmental risks." reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/31938.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade UnB Planaltina, Programa de Pós-Graduação em Ciências Ambientais, 2017.<br>Submitted by Raquel Almeida (raquel.df13@gmail.com) on 2017-11-24T16:49:58Z No. of bitstreams: 1 2017_ArianedeAlmeidaRodrigues_PARCIAL.pdf: 3438685 bytes, checksum: 35cf200570cec899215e3512754fafce (MD5)<br>Approved for entry into archive by Raquel Viana (raquelviana@bce.unb.br) on 2018-05-21T19:59:50Z (GMT) No. of bitstreams: 1 2017_ArianedeAlmeidaRodrigues_PARCIAL.pdf: 3438685 bytes, checksum: 35cf200570cec899215e3512754fafce (MD5)<br>Made available in DSpace

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Jacobsson, Andreas. "Exploring Privacy Risks in Information Networks." Licentiate thesis, Ronneby : Blekinge Institute of Technology, 2004. http://www.bth.se/fou/Forskinfo.nsf/allfirst2/80533d43ac292724c125707f003aafbd?OpenDocument.

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Medvedeva, O. A., O. V. Cherkasova, Віталій Анатолійович Омельяненко, Виталий Анатольевич Омельяненко, and Vitalii Anatoliiovych Omelianenko. "The analysis of the theoretical foundations of the role of banks in the ecosystem of innovation: risks and opportunities." Thesis, Publishing Center "Gravis", 2014. http://essuir.sumdu.edu.ua/handle/123456789/44496.

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В статье рассмотрена роль банковской системы в процессе формирования экосистемы инноваций. Проанализировано место банков в экосистеме инноваций «тропического леса». Предложены направления повышения инновационной роли банков и минимизации инновационных рисков путем интеграции с инновационной инфраструктурой. Произведен анализ механизмов поддержки инноваций банками на примере Литвы и Канады.<br>In this paper the role of the banking system in the process of innovation ecosystem is considered. Place of banks in the "rainforest" innovation ecosystem is analyzed. Innovative ways of increasing the

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Scherer, Kátia Ragnini. "A função do direito na fase da reconstrução identificada pela gestão circular dos desastres climáticos." Universidade do Vale do Rio dos Sinos, 2017. http://www.repositorio.jesuita.org.br/handle/UNISINOS/6468.

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Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2017-08-03T14:13:25Z No. of bitstreams: 1 Kátia Ragnini Scherer_.pdf: 4709462 bytes, checksum: c2712b965209d1f13cca1045e1043cfa (MD5)<br>Made available in DSpace on 2017-08-03T14:13:25Z (GMT). No. of bitstreams: 1 Kátia Ragnini Scherer_.pdf: 4709462 bytes, checksum: c2712b965209d1f13cca1045e1043cfa (MD5) Previous issue date: 2017-03-30<br>Nenhuma<br>A tese tem como tema a função do Direito na reconstrução identificada pela gestão circular dos desastres climáticos. A delimitação centra-se na função do Direito no estágio da reconstruçã

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7

Biboutou, Armel. "Dynamiques d'urbanisation et risques écosystemiques dans la région de Libreville (Gabon)." Electronic Thesis or Diss., Université Paris Cité, 2022. http://www.theses.fr/2022UNIP7047.

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Depuis sa création en 1849, Libreville a connu une urbanisation non planifiée et non coordonnée. Au fil des décennies, cette urbanisation anarchique s'accompagne de déséquilibres environnementaux et soumet les citadins à de nombreux risques écosystémiques. L'urbanisation anarchique, son univers de production et les risques écosystémiques engendrés sont l'objet de cette recherche. Des questions peu abordées au Gabon sont soulevées : comment, par qui et pourquoi l'urbanisation anarchique est-elle produite ? Que révèle cette forme de production de la ville ? Dans quelle mesure la production de l'

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Infante, Maria Cristina. "Building an ecosystem services value at risk conceptual framework for sustainability, efficiency and fairness in resource management : starting values from marine ecosystems." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46587.

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The primary research problem addressed in this thesis is the development of a conceptual framework for a novel ecological economics risk measure called “ecosystem services value at risk” to guide sustainability, efficiency and fairness in the human use of natural ecosystems. Ecosystem services value at risk integrates ecosystem services valuation with financial value at risk to provide an estimate of a “worst likely loss” in ecosystem services under alternative policies. This new approach estimates the uncertainty around ecosystem services values from human activities. By framing the risk

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9

Schneider, Christof [Verfasser]. "River ecosystems at risk / Christof Schneider." Kassel : Universitätsbibliothek Kassel, 2015. http://d-nb.info/1081459093/34.

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10

Ravindranath, Darshini. "Confronting land degradation and climate risks in dryland agro-ecosystems." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10046854/.

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Drylands cover nearly half of the earth’s terrestrial surface and are home to unique ecosystems and vibrant cultures. Dryland communities face various challenges of living in the harsh and variable conditions presented by their environment and landscapes. These challenges are magnified in the arid landscapes of India, where agriculture is largely rain-fed and human and livestock population densities are some of the largest in the world. Communities and landscapes in arid India are exceptionally vulnerable due to intensifying dryland degradation, increasing rainfall variability along with clima

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Smart, Francis Clayton. "Minimum-data analysis of ecosystem service supply with risk averse decision makers." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/smart/SmartF0809.pdf.

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There is a need for models that produce results that are both timely and sufficiently accurate to be useful to policy makers. The minimum-data approach of Antle and Valdivia (2006) responds to this need by supplying a spatially explicit first order approximation that models ecosystem supply by producers. However, producers in developing nations often are observed to deviate from simple expected profit maximization. Risk is one possible explanation for this divergence. This study builds upon the minimum-data approach by allowing for risk averse producer preferences. The study presents a framewo

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12

Pham, Hung Vuong <1988&gt. "Multi-risk assessment of freshwater ecosystem services under climate change conditions." Doctoral thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/17841.

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The aim of this work is to develop a multidisciplinary approach to (i) understand the dynamics of freshwater-related ecosystem services (ES); (ii) quantify the conjoined effects of climate and land use change on these ES; (iii) evaluate the effectiveness of different management scenarios; and (iv) provide appropriate indicators to support the identification of proper practices to improve ES management at the local level. First, we reviewed the complex effects of climatic and non-climatic drivers on the supply and demand of freshwater ecosystem services. Based on the literature, we proposed a c

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Pacha, Vicente Esteban. "Propuesta de designación de la Zona Marina Especialmente Sensible del Estrecho de Gibraltar y Golfo de Cádiz : Una estrategia para mejorar la protección de las aguas marinas frente a los riesgos que se derivan del transporte marítimo = Proposal for the designation of the Particularly Sensitive Sea Area of the Strait of Gibraltar and Gulf of Cadiz : a strategy to protect the marine environment from risks rising as a consequence of maritime transportation." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277379.

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In recent years, society has begun to take a new view of its relations with the surrounding environment, and in particular has become aware of the need to ensure the sustainability of the oceans and their biodiversity. This concerns have also moved the scientific community to include aspects of environmental science and engineering in their curricula. This thesis links both the causes and effects of maritime transport with the necessary protection of marine resources aiming to justify a specific proposal that would allow the right balance between the needs of maritime transportation and the

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Rajarshi, Dasgupta. "Enhancing Coastal Community's Disaster and Climate Resilience in the Mangrove Rich Indian Sundarban." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215362.

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15

Saarela, A. (Asmo). "Deployment of the agile risk management with Jira into complex product development ecosystem." Bachelor's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201710042941.

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This work is a descriptive case study of deployment of the agile risk management with Jira into complex product development ecosystem. The context is a Development Team in Finland that is leading distributed product development for a small cell radio base station (RBS). The quality management requirements in the ISO 9001:2015 standard have been updated and the main impact is the deployment of the risk based thinking. The Development Team in Finland has gone through a transformation from release project driven development to continuous software development. This major change requires that devel

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16

Burkholder, Derek A. "Top Down Control in a Relatively Pristine Seagrass Ecosystem." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/799.

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The loss of large-bodied herbivores and/or top predators has been associated with large-scale changes in terrestrial, freshwater, and marine ecosystems around the world. Understanding the consequences of these declines has been hampered by a lack of studies in relatively pristine systems. To fill this gap, I investigated the dynamics of the relatively pristine seagrass ecosystem of Shark Bay, Australia. I began by examining the seagrass species distributions, stoichiometry, and patterns of nutrient limitation across the whole of Shark Bay. Large areas were N-limited, P-limited, or limited by f

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Milton, Adrian Mark. "Heavy metals in contaminated grassland ecosystems : distribution, transfer and effects." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266222.

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18

Scholz-Starke, Björn [Verfasser]. "Assessing the risks of pesticides to soil communities using terrestrial model ecosystems / Björn Scholz-Starke." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1047231379/34.

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19

Whittle, Don. "Stream mesocosms in ecological risk assessment : experimental, analytical and ecological considerations." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339940.

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20

Lozoya, Azcárate Juan Pablo. "Multi-risk assessment and users' perception: a futher step towards ecosystem-based beach management." Doctoral thesis, Universitat Politècnica de Catalunya, 2012. http://hdl.handle.net/10803/113675.

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This thesis deals with the need to move towards a holistic, truly integrated and ecosystem-based beach management that allows a sustainable use of these systems within the socio-ecological paradigm. However, the scarcity of frameworks for such management has been identified as a major constraint. The goal of this thesis was to apply and develop a set of methodologies based on the introduction of the Ecosystem Approach principles to beach management. These tools would be part of the Ecosystem Based Management System (EMBS), a novel formal system of public good management developed for coastal a

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Schwoerer, Tobias. "Invasive Elodea Threatens Remote Ecosystem Services in Alaska| A Patially-Explicit Bioeconomic Risk Analysis." Thesis, University of Alaska Fairbanks, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10265151.

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<p> This dissertation links human and ecological systems research to analyze resource management decisions for elodea, Alaska’s first submerged aquatic invasive plant. The plant likely made it to Alaska through the aquarium trade. It was first discovered in urban parts of the state but is being introduced to remote water bodies by floatplanes and other pathways. Once introduced, elodea changes freshwater systems in ways that can threaten salmon and make floatplane destinations inaccessible. The analysis integrates multiple social and ecological data to estimate the potential future econo

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Sanchez, André Luís. "Ecological risk assessment in pesticide contamination scenarios: from individuals to ecosystems responses." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-06102016-101708/.

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Ecological risk assessment (ERA) studies are important to assess environmental changes that have been caused by anthropogenic activities. These integration models show the estimation of adverse risk effects across the levels of biological organization potentially exposed to perturbation, including a better understanding of the ecosystems complexity. It is well known that the pesticide have severe environment effects contributing to biodiversity loss and trophic levels changes. In this context, the aim of this study was to evaluate the ecological risk assessment in pesticide contamination scena

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BARMAZ, STEFANIA. "Plant protection product risk assessment: distribution and experimental validation in terrestrial ecosystems." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/7503.

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Risk assessment process is complex because it requires a multidisciplinary approach. In official European procedures, risk is assessed on standardised scenarios, where the territory, at different scale levels is described without taking into account the spatial variability of parameters. These approaches represent a powerful tool to characterize potential risk, anyway results obtained are not representative of actual site-specific conditions. The aim of this research was to analyse the main critical issues of agrochemicals risk assessment in terrestrial ecosystems. Different steps of agrochemi

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Dave, Radhika. "Forest ecosystem services for agricultural risk reduction : examining interactions within socio-ecological systems in Madagascar." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/413762/.

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Natural ecosystems like forests, wetlands and coastal habitats are hypothesized to support disaster risk reduction by decreasing the exposure of communities to hazards such as floods, landslides and storm surge. Forest cover loss is thought to increase flood risk and is seen as a primary driver of soil erosion and consequent siltation of irrigation channels and agricultural fields. While there is a growing body of evidence in support of the role of ecosystem processes in providing these hazard mitigation services much of it is site specific, and gaps remain in our understanding of the specific

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MERLI, ANNALISA. "Pesticide Risk Assessment in Vineyard Ecosystems : Case studies in Veneto and Puglia regions." Doctoral thesis, Università degli Studi di Milano, 2008. http://hdl.handle.net/2434/61465.

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Pereira, Ana Carina Santos. "Linking exposure of mediterranean freshwater ecosystems to pesticides mixtures with their environmental side-effects." Doctoral thesis, ISA, 2017. http://hdl.handle.net/10400.5/14958.

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Doutoramento em Engenharia do Ambiente - Instituto Superior de Agronomia<br>In freshwater ecosystems associated with agricultural areas, organisms are exposed to a multitude of toxicologically and structurally distinct pesticides in concentrations that may fluctuate over time. However, the environmental risks of chemicals are traditionally evaluated and regulated on the basis of single substance. Understanding and improving the link between effects and exposure assessment is an important step in the current challenges of risk assessment in order to increase its ecological relevance. To this en

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Zhang, Qian Amy, and 張倩. "Ecotoxicities and ecological risks of irgarol 1051 and its related s-triazine compounds in tropical marine ecosystems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41757956.

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The Best PhD Thesis in the Faculties of Dentistry, Engineering, Medicine and Science (University of Hong Kong), Li Ka Shing Prize,2007-2008<br>published_or_final_version<br>Biological Sciences<br>Master<br>Master of Philosophy

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Zhang, Qian Amy. "Ecotoxicities and ecological risks of irgarol 1051 and its related s-triazine compounds in tropical marine ecosystems." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B41757956.

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JIANG, HUAN. "Ecological Risk Assessment of Salts in Swedish Freshwater Ecosystem : A preliminary assessment for invertebrates and vertebrates." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-16578.

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Sen, Sanjoy. "Strategic governance and risk-management of the outsourcing ecosystem : developing dynamic capabilities and addressing implementation challenges." Thesis, Aston University, 2018. http://publications.aston.ac.uk/37844/.

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As outsourcing continues to grow in large global organisations, governance and risk management of the related outsourcing ecosystem is evolving as a strategic Board-level activity, driving competitive advantage and value-creation, in addition to value-protection. Amidst this growth and evolution, the outsourcing of Information Technology (IT) and IT-enabled Business Process Outsourcing (BPO) continues to mature into a broader category referred to by contemporary researchers as "business services" including almost every service that can be delivered by third parties, often enabled by digitisati

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Subedi, Yuba Raj. "The response of ecosystems to an increasingly variable climate." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78470.

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A wide range of ecological communities ranging from polar terrestrial to tropical marine environments are affectedby global climate change. Over the last century, atmospheric temperature has increased by an average of 0. 60 C andis expected to rise by 1.1- 6.40C over the next 100 years. This rising temperature has increased the intensity andfrequency of weather extremes due to which a large number of species are facing risk of extinction. Studies haveshown that species existing on lower latitude are more sensitive to temperature variability compared to speciesexisting on higher latitude but te

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IPPOLITO, ALESSIO. "Plant protection product risk assessment for aquatic ecosystems: evaluation of effects in natural communities." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/30471.

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The level of alteration in response to the same level of exposure can vary greatly among different ecosystems: in particular, effects provoked by chemicals are not only relying on their “absolute toxicity” and on their concentration, but also on the ecological vulnerability of the system. Vulnerability is often overlooked in current risk assessment procedure, but its knowledge is pivotal in site-specific studies, where the object of the protection is shifted from a generic scenario to a real ecological system. The study of ecological vulnerability confirms that risk assessment, as becoming sit

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Kimura, Naoko. "Research on the Correlation between Disaster Preparedness and Ecosystem Conservation - Toward Building a Culture of Disaster Risk Reduction for Local Sustainability." Kyoto University, 2020. http://hdl.handle.net/2433/254530.

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Lee, Robert F. "Human health and coastal ecosystem risk assessment of the Massachusetts Military Reservation main base landfill groundwater plume." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/41358.

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VAJ, CLAUDIA. "Ecotoxicological effects on structure and function of aquatic and terrestrial ecosystems." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/19729.

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The traditional procedures for the ecotoxicological risk assessment are general, schematic and simplified and, for these reason, they are powerful tools for regulation purposes. Anyway, they don't take into account the actual consequences on natural communities, the interactions among populations within the community or the indirect effects of a contamination. The need of more "ecological realism" into them is thus felt. Recently, the application of the vulnerability concept, instead of sensitivity, and the use of biological characteristics (traits) of organisms for predicting it represent ste

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Botequim, Brigite Roxo. "Tools to support design of fire-resistant landscapes in Portuguese ecosystems." Doctoral thesis, ISA/UL, 2015. http://hdl.handle.net/10400.5/9257.

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Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>Forests are a key element in the Portuguese landscape. Moreover, fire hazard is a central challenge at national context. How can appropriate management potentially change fire behaviour, fire damage and the difficulty of fire suppression? What are the causal relationships between fire proneness, stand structure and forest stand composition? The common objective of the doctoral research among the five studies is to address the above issues based on principles of creating fire-resistant forests, und

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Regnier, Esther. "Interactions between aquaculture and fisheries, and the viability approach to risk management in harvested ecosystems." Thesis, Paris 1, 2014. http://www.theses.fr/2014PA010075.

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Les interactions entre aquaculture et pêche captive, et la viabilité comme approche de gestion du risque dans l'exploitation des écosystèmes<br>The world of ﬁsheries is complex, dynamic and contested. At the core of ﬁshery management lie technical challenges but also fundamental socioeconomic issues such as valuation and ownership. So far, as for other natural resources, ﬁsheries resources have been largely over exploited and alarms from the scientiﬁc community on rapidly declining stocks and species disappearance have been repeatedly published. In what follows, I ﬁrst strive to explain the re

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Isigonis, Panagiotis. "A decision support system for probabilistic ecological risk assessment (PERA) of pollutants on aquatic ecosystems." Doctoral thesis, Ca Foscari University of Venice, 2015. http://hdl.handle.net/10278/3715744.

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Ecological Risk Assessment (ERA) is a process undertaken for estimating the environmental harms caused by human activities. The assessment is based on three components: effect assessment, exposure assessment, and risk characterisation. The latter is a combination of the former two. Various methodologies can be used for performing ERA, which can be categorised into deterministic and probabilistic. Probabilistic techniques have been at the focus of research the last years, due to their elaborated character and the possibilities they offer for more refined risk assessments. Despite their obvio

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Isigonis, Panagiotis <1983&gt. "A decision support system for probabilistic ecological risk assessment (PERA) of pollutants on aquatic ecosystems." Doctoral thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/5636.

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The thesis is related with the development of a fully functional, modular Decision Support System (DSS) for performing Probabilistic Ecological Risk Assessment (PERA) of pollutants in aquatic environments. The Decision Support System is a 3‐module software, which integrates the use of Multi‐Criteria Decision Analysis (MCDA) methods for the quantitative assessment of the reliability and relevance of ecotoxicological data. Ecotoxicological data are vital components of the Ecological Risk Assessment processes and specifically the Effect assessment part. A MCDA based methodology (i.e. from the def

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Lecina, Diaz Judit. "The key role of ecosystem services in forests: spatial relationships, conservation implications and risk to climate change hazards." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/670593.

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Els boscos proveeixen d’una àmplia varietat de serveis ecosistèmics (SE). Entendre com i per què aquests SE es distribueixen en el paisatge és essencial per dotar a les polítiques d’informació per protegir, millorar i restaurar aquests ecosistemes. A més, l’efectivitat de les Àrees Protegides (AP) en el manteniment dels SE i la biodiversitat encara no està clara, i els boscos estan cada vegada més sotmesos a la pressió del canvi climàtic, amb canvis en el règim de pertorbacions (com ara els incendis). Predir on aquestes pertorbacions tindran lloc en el futur i fins a quin punt els SE dels bosc

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Konovalenko, Lena. "Element transport in aquatic ecosystems – Modelling general and element-specific mechanisms." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-110064.

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Radionuclides are widely used in energy production and medical, military and industrial applications. Thus, understanding the behaviour of radionuclides which have been or may be released into ecosystems is important for human and environmental risk assessment. Modelling of radionuclides or their stable element analogues is the only tool that can predict the consequences of accidental release. In this thesis, two dynamic stochastic compartment models for radionuclide/element transfer in a marine coastal ecosystem and a freshwater lake were developed and implemented (Paper I and III), in order

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Kalisa, Thierry. "Economic valuation of ecosystems and natural resources." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO22004.

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Cette thèse a pour but d'étudier les méthodes d'évaluation des ressources environnementales : la méthode des Coûts de Transport (CT) à préférences révélées et la méthode d'évaluation contingente (EC) à préférences déclarées afin de proposer les contributions suivantes. Dans le chapitre 1, nous montrons qu'il est possible si les données sur les deux méthodes sont disponibles pour les mêmes observations, d'obtenir une meilleure mesure de la disposition à payer (DAP) par la combinaison des deux méthodes en utilisant la technique du maximum de vraisemblance simulé. Dans le chapitre 2, nous montron

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Sciera, Katherine Lynne. "Quantifying the effects of land use change on stream ecosystems for use in ecological risk assessment." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1233081388/.

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Nowicki, Robert J. "Effects of Catastrophic Seagrass Loss and Predation Risk on the Ecological Structure and Resilience of a Model Seagrass Ecosystem." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2994.

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As climate change continues, climactic extremes are predicted to become more frequent and intense, in some cases resulting in dramatic changes to ecosystems. The effects of climate change on ecosystems will be mediated, in part, by biotic interactions in those ecosystems. However, there is still considerable uncertainty about where and how such biotic interactions will be important in the context of ecosystem disturbance and climactic extremes. Here, I review the role of consumers in seagrass ecosystems and investigate the ecological impacts of an extreme climactic event (marine heat wave) and

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Kumblad, Linda. "Radionuclides in the Baltic Sea : Ecosystem models and experiments on transport and fate." Doctoral thesis, Stockholm : Institutionen för systemekologi, Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-175.

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Dolan, Corrine, and Alix Rogstad. "Living with Wildfire in Arizona." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2007. http://hdl.handle.net/10150/146928.

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226 pp.<br>UACE Firewise publications (8 total)<br>The Living with Wildfire in Arizona educational materials synthesize the most recent scientific and technically known information available on fire ecology for the ecosystems of Arizona, including mixed conifer forests, ponderosa pine forests, pinyon-juniper and oak woodlands, chaparral, grasslands and desert scrub, and riparian areas. The materials are meant to educate homeowners living in the wildland urban interface areas as to the natural function of fire in each ecosystem and what significant changes have impacted fire behavior over time

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Holloway, Jimeka J. "BRINGING SOCIAL INNOVATION TO SCALE: LEVERAGING RELATIONAL CAPITAL AND RISK-TAKING BEHAVIORS OF ACTORS IN COMPLEX ECOSYSTEMS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1487252947628322.

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Ghneim, George Simon. "Environmental risk factors associated with leptospirosis infection in California sea lions (Zalophus californianus) and domestic dogs in the California ecosystem /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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Mtui-Malamsha, Niwael Jesse. "Contagious bovine pleuropneumonia (CBPP) in the Maasai ecosystem of south-western Kenya : evaluation of seroprevalence, risk factors and vaccine safety and efficacy." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4379.

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Contagious bovine pleuropneumonia (CBPP) is a bovine bacterial disease of major economic importance in sub-Saharan Africa. Vaccination has been recommended to control the disease in endemic areas such as the Maasai ecosystems of Kenya and Tanzania; however, the currently used live attenuated vaccine has been reported to have poor vaccine safety and efficacy. To compare standard (current) and an improved (buffered) version of the live CBPP-vaccine, several epidemiological studies were carried out in Maasai cattle in Kenya between 2006 and 2008. Specifically, the aims were to estimate CBPP serop

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McLellan, Iain Stewart. "Managing human impacts on forest ecosystems : a chromatographic and statistical analysis in the development of a collaborative risk assessment." Thesis, University of the West of Scotland, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.732200.

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