Global ETD Search

681	Carbon Dynamics of Subtropical Wetland Communities in South Florida Villa Betancur, Jorge Andres 06 June 2014 (has links) No description available. Ecology Environmental Science Environmental Studies Environmental Management Environmental Engineering Water Resource Management Natural Resource Management Hydrology Climate Change Biogeochemistry Wetlands ecosystem services carbon sequestration methane emissions dissolved organic carbon climate regulation nutrient cycling subtropical wetlands south Florida cypress swamp storm treatment areas Everglades hydroperiod
682	Understanding Ecosystem Services through Organizational Analysis: Application to the Truckee-Carson River System Tashev, Azamat 13 July 2018 (has links) No description available. Climate Change Conservation Ecology Environmental Management Environmental Studies Geography Hydrology Land Use Planning Natural Resource Management Organization Theory Political Science Public Policy Social Research Sustainability Systematic Systems Design Systems Science Water Resource Management ecosystem services production system beneficiary water use river system management organizational analysis water management functional roles and responsibilities socio-ecological systems SES Truckee-Carson River System complex systems Ostrom
683	Ecosystem Services of Urban Green Spaces under Global Change Krämer, Roland 22 November 2023 (has links) Städte sind Hotspots des Globalen Wandels. Sie zählen über ihren Konsum und Ressourcenverbrauch zu den Haupttreibern des Klimawandels, der Biodiversitätskrise und sozio-ökonomischer Prozesse wie Urbanisierung und Demographischer Wandel. Gleichzeitig stellen diese Prozesse insbesondere für Städte eine große Herausforderung dar. Für die Anpassung an den Globalen Wandel spielen städtische Grünflächen als Werkzeug der Stadtplanung eine zentrale Rolle. Parks, Friedhöfe, Gärten, bis hin zu einzelnen Straßenbäumen stellen Ökosystemleistungen bereit, die einerseits, z.B. durch Abmilderung von hohen Temperaturen, die Umweltqualität verbessern und andererseits, z.B. durch die Bereitstellung von Erholungsräumen, einen direkten Einfluss auf das Wohlbefinden und die Aktivitäten der Stadtbevölkerung haben. Jedoch sind auch Grünflächen und deren Ökosystemleistungen, wie die gesamte Stadt an sich, hohen Belastungen durch die Folgen des Globalen Wandels ausgesetzt, z.B. durch Hitze, Trockenheit und Verdichtungsprozesse. Diese kumulative Dissertation zeigt, dass sich Form, Ausstattung und Lage einer Grünfläche unterschiedlich auf die Bereitstellung von verschiedenen Ökosystemleistungen auswirken. Während für die Kühlungsfunktion ein dichter Bestand von ausgewachsenen Bäumen entscheidend ist, spielt für die Erholungsfunktion einer Grünfläche eine ausgewogene Vegetationsstruktur, vielfältige (gebaute) Infrastruktur und eine gute Einbettung in die Umgebung eine zentrale Rolle. Die Arbeit formuliert schließlich Empfehlungen an die Stadtplanung für eine qualitative Aufwertung der Grünflächen im Hinblick auf eine bessere und gerechte Versorgung der Bevölkerung und eine größere Widerstandsfähigkeit gegenüber extremen Wetterereignissen. Eine im Rahmen dieser Arbeit entwickelte und frei zugängliche Online-Kartenanwendung kann dabei als ein unterstützendes Entscheidungsinstrument dienen und zukünftig auf andere Städte übertragen werden. / Cities are hotspots of global change. Through their consumption and resource use, cities are among the main drivers of climate change, the biodiversity crisis and socio-economic processes such as urbanisation and demographic change. At the same time, these processes represent a major challenge for cities. Extreme weather events caused by climate change, such as heat and heavy rain, often occur with greater intensity in densely populated areas and can potentially cause more damage to people and infrastructure there. For adaptation to global change, urban green spaces play a central role as a tool in urban planning. Green spaces or individual street trees provide ecosystem services that can improve, on the one hand, environmental quality, e.g. by mitigating high air temperatures, and, on the other hand, the health and well-being of the urban population, e.g. through the provision of recreational opportunities. However, green spaces and their ecosystem services are also exposed to high pressures from the impacts of global change such as extreme heat, drought and densification processes. This cumulative thesis shows that the form, equipment and location of a green space have different effects on the provision of different ecosystem services. While a dense stand of mature trees is crucial for the cooling function, a balanced vegetation structure, diverse (built) infrastructure and a good embedding in the surroundings play a central role for the recreational function of a green space. Finally, the thesis formulates recommendations for urban planning for a qualitative upgrading of green spaces with regard to a better and equitable provision for the population and a greater resilience to extreme weather events. An open access online map application developed as part of this thesis is intended to serve as a decision support tool and may be transferred to other case studies in the future. Ökosystemleistungen Globaler Wandel Stadtgrün Klimawandel Klimaanpassung Stadtklima GIS Grünflächen Ecosystem Services Global Change Urban Green Spaces Climate Change Climata Adaptation Urban Climate GIS 577 Ökologie 550 Geowissenschaften RH 40636 RH 40642 AR 27300 ddc:577 ddc:900 ddc:710 ddc:550
684	(RE)DEFINE GROWTH : How to Connect Ön and the City while Preserving, Emphasising and Intensifying the Green, Rural and Recreational Qualities Kassberg, Anna January 2017 (has links) Ön is an island in central Ume River. Today Ön is a rural, green place with key habitats and historical values. In 2008 the municipality took the decision to exploit it by building city there. The decision was preceded by the emerging growth target, for Umeå, to become 200,000 inhabitants in 2050. The research material for this paper consists of legal documents, reports, literature, interviews, and own observations. It can be divided into three main parts. The first part, which is the ‘growth discourse’, is investigated through documents concerning political strategies and influences from within the field in relation to Umeå as a city. The second part consists of research around the ‘image’ of Norrland and the third part focus on questions involving well-being through nature and the concept of Ecosystem Services, in relation to Ön. In this paper, I advocate for an alternative plan concerning Ön and its unique set of qualities: the rural, historical, and nature dominated atmosphere adjacent to the city of Umeå. I argue that the value of this land is greater in its natural vesture, than it would be with added asphalt and concrete. The values of concern are non-monetary, but might as well become monetary in the more long-term scenario. There is mounting evidence of benefits derived from nature, when it comes to human well-being, and further that ecosystems provide services of major importance to us. Ecosystem Services are the benefits people obtain from ecosystems. Ön possesses many of these services today. It holds potential for further cultivation and capacity to become amplified as a recreation area in central Umeå. The objective of this master thesis is to define and validate the qualities of Ön; and further, to develop a programme of possible interventions, in order to preserve and intensify the present atmosphere. This is conducted by identifying Ecosystem Services in the current context; and ways to enhance them, in order to propose an alternative plan for Ön. Architecture Nature Green Structure Greenery Ecosystem Services Ecosystem Preservation Culture History Well-being Connecting Nature Conservation North Sweden Rural Urban Sparsity Density Cultivation Park Garden Arboretum Refuge Recreation Farming Outdoor Countryside Growth Prosperity Municipality Comprehensive Plan Influence City River Island. Arkitektur Natur Grönstruktur Ekosystemtjänster Kulturhistoria Bevara Skyddad natur Välmående Landsbygd Stad Glesbygd Förtätning Kultivering Jordbruk Odling Park Trädgård Arboretum Fristad Rekreation Friluftsliv Tillväxt Välstånd Kommun Översiktsplan Stadspark Influens Norrland Umeå Älv Ön. Architecture Arkitektur
685	Birds, bats and arthropods in tropical agroforestry landscapes: Functional diversity, multitrophic interactions and crop yield Maas, Bea 20 November 2013 (has links) No description available. 630 birds bats arthropods multitrophic interactions agroforestry tropical landscape forest margin landscape functional diversity crop yield exclosure experiments experimental exclusion arthropod suppression avian predation ecosystem services mist netting point counts artificial plasticine caterpillar dummy experiment biological control monitoring mapping Lemon-bellied White-eye Grosbeak Starling Zosterops chloris Scissiostrum dubium Theobroma cacao cacao agroforestry cacao diseases cacao harvest cacao pests flying vertebrates aerial insectivores volant vertebrates logging breeding colony flower herbivory mesopredator release predatory insects ants spiders aphids Lepidoptera Coleoptera Lepidopteran larvae sustainable agriculture sustainable agroforestry management implications management recommendations applied managament extensive land use management landscape management conservation biodiversity-friendly dbh distance to forest forest proximity habitat conversion herbivory Indonesia insectivorous bats insectivorous birds invertebrates Central Sulawesi Napu valley leaf gleaning leaf herbivory pests insects phytophagous insects plant productivity remnant forest trees shade tree managament South-east Asia Paleotropics tropical landscape tree height landscape gradient local shade management Cacao Pod Borer Cherelle Wilt fruit abortion Helopeltis sulawesi deforestation habitat fragmentation land use intensification forest margin species critical decline predation experiment species-specific functions Southeast Asia biodiversity conservation mesopredators food security human welfare human well-being poverty alleviation poverty reduction smallholder cacao smallholder plantation cacao farmers sustainable cacao management landscape perspective landscape scale large scale field experiment long term field experiment human wellbeing economic importance economic value valuation ecosystem services landscape matrix yield quality yield quantity fruit productivity species identity species diversity species richness ecosystem functioning pesticide use chemical compounds complex food web tritrophic interactions wildlife-friendly rural livelihoods endangered bird species endangered bat species endemic endemic birds endemic bats beneficial impact IUCN Lore Lindu National Park bioindicator indicator species forest margin agricultural habitat agroforestry systems population density predation activity species activity cacao flower cacao pod Orthoptera linear mixed effect models Tukey Post Hoc Test AICc model selection generalized least squares restricted maximum likelihood model simplification species richness estimator species accumulation linear mixed-effects models Likelihood Ratio Test Maximum Likelihood nocturnal insects diurnal arthropods nocturnal arthropods diurnal insects landscape context Land- und Forstwirtschaft (PPN621302791)

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