Search for dissertations about: "Ecological integrity"
Showing result 1 - 5 of 12 swedish dissertations containing the words Ecological integrity.
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1. Network Based Tools and Indicators for Landscape Ecological Assessments, Planning, and Design
Abstract : Land use change constitutes a primary driving force in shaping social-ecological systems world wide, and its effects reach far beyond the directly impacted areas. Graph based landscape ecological tools have become established as a promising way to efficiently explore and analyze the complex, spatial systems dynamics of ecological networks in physical landscapes. READ MORE
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2. Ecological succession of benthic macrofauna following disturbance : Effects of contaminants and in situ sediment remediation
Abstract : More than 70% of the Earth is covered by water, and most of the sea floor consists of soft sediments, such as mud, clay and sand. Thus, soft sediments form one of the most important habitats on Earth, with a high diversity of organisms. READ MORE
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3. Protecting Ecological Integrity in Transboundary Watercourses : An Integrational Approach towards Implementing Environmental Flows
Abstract : The thesis explores the obligation in international law to protect the ecological integrity of transboundary watercourses. The thesis specifically examines the obligation to protect environmental flows, which essentially means to protect a certain water flow for the benefit of freshwater ecosystems and the ecosystem services they supply. READ MORE
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4. Predation as a driver of reproductive isolation - from adaptive divergence to hybrid inviability
Abstract : Natural selection can play an important role in the origin of new species. When reproductive isolation evolves as a result of ecologically-based divergent natural selection, the process is referred to as ecological speciation. In most organisms, sufficient reproductive isolation is considered to be essential for the establishment of new species. READ MORE
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5. Credible targets for environmental management : evaluating reconstructions of reference values for ecological status in surface waters
Abstract : In the year 2000, countries of the European Union agreed to harmonise water management by implementing the European Water Framework Directive (WFD). The WFD uses good ecological status as the overall goal, which is defined as minor deviation from an undisturbed state. READ MORE