Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Ecological networks"”.
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The structure and stability of ecological networks
… interact with other species to form complex networks of connections. Such networks are a powerful way to represent ecological communities because they describe (i) the roles of individual species and (ii) the structure of the community as a whole in a single framework amenable to mathematical …
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Incorporating ecological networks and green infrastructure into spatial strategies: Mapping optimal locations for habitat banks
… spatial targeting of habitat banks, with ecological networks and ecoprofiles employed to guide their location. Ecological effects of bank composition, size and location were examined, combined with a network analysis to determine people's access to natural greenspace in the same area, and …
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Distances Between Species in Food Webs: Evaluating Alternative Metrics' Predictive Power
<p>The complexity of ecological systems makes it difficult to predict how one species will react to the disturbance of another. Complex systems of species’ interactions can be described as ecological networks. One way in which ecological networks can give information concerning one species’ …
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Hide and seek : a multidisciplinary study on the ecological success of an estuarine dweller
… opportunities. A thorough understanding of ecological networks in these systems, therefore, relies on comprehensive information on anti-predator adaptations and trophic relationships among species. The present study focuses on two key traits of the brown shrimp Crangon crangon L. (Decapoda: …
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The challenge of creating an effective and equitable legal regime to cover transboundary protected areas considering the challenge through the lens of the Great Limpopo Transfrontier Park
… through effectively and equitably managed, ecologically representative and well-connected systems of protected areas, as well as, other effective area-based conservation measures, and integrated into the wider landscape and seascape.' Target 11 requires compliance with a number of …
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Mapping Connectivity: Integrating Ecological Landscape Analysis into Urban Planning in the City of Nanaimo
… habitats and disrupts ecosystem functionality. Ecological networks, including corridors and green spaces, are critical for maintaining biodiversity, yet connectivity planning must balance ecological sustainability with urban growth and socio-economic considerations. This study had two main …
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Utopian connectivity to paranoid collapse: complex networks and global social ecologies in 20th-century fiction
… complex systems, specifically global social and ecological networks, as central to understanding modern explorations and experiences of utopian connectivity and stability alongside dystopian paranoia and precarity. Through an examination of the fiction of Charlotte Perkins Gilman, James Joyce, …
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The Resilience of k-Cores in Graphs
… and finding influential spreaders in social networks, to studying the robustness of financial and ecological networks.</p> <p>In our work, we study the effect of missing data (edges or nodes) to the k-core of a graph. In particular, we study three different type of changes. The first type of …
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Muslim childhoods in South Africa: gendering the madrasah space
… to the multiplicity of interdependencies and ecological networks that constitute and shape interactions between subjects and objects. In this ontological-epistemological framework, the material, discursive and affective factors of social phenomena are seen as entangled and co-emergent …
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Parasitism, Predation Prediction: Modelling Variations in Ecological Interactions from Mechanisms to Networks
Ecological interactions are fundamental to ecology and evolution, regulating population dynamics as well as influencing the biodiversity and stability of communities. Intraspecific and environmental variations are often present in ecological interactions and are typically observable within the …
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Landscape-scale habitat requirements of flower-visiting insects in the Nene Valley Nature Improvement Area
… in England (UK), was created seeking to improve ecological networks through increased landscape connectivity. The Nene Valley NIA follows the course of the River Nene from its source in west Northamptonshire through to Peterborough and covers an area of 41,350 hectares. This thesis evaluates the …
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Macroscopic insights from mechanistic ecological network models in a data void
… young and there remain limitations in many ecological network studies, such as modeling only one type of species interaction at a time, lack of realistic network structure, or non-inclusion of community dynamics and environmental stochasticity. I introduce bioenergetic network models that …
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COEXISTENCE, RESILIENCE AND RESISTANCE OF MARINE INVERTEBRATE COMMUNITIES ACROSS A LATITUDINAL GRADIENT
… species geographic ranges, restructuring ecological networks, modifying ecological niche arrangements and increasing the frequency and intensity of natural pulse disturbances. In this context, examination of some of the most fundamental processes underlying the patterns of species …
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Unravelling abiotic and biotic drivers of biodiversity change in local plant and invertebrate communities after 80 years - a re-visitation study on the Studland peninsula.
How ecological communities respond to long-term environmental change via changes in species richness and composition is an urgent question in the 21st century as anthropogenic forces drive biodiversity declines across taxa and regions. As environmental conditions change over time, effects may …
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Spatio-Temporal Connectivity in Dynamic Tropical Fragmented Landscapes
Expanding human occupation on the planet reduces and fragments native habitats, threatening biodiversity, ecosystem functioning, and services. Tropical regions have recently been experiencing unprecedented amounts of forest conversion and fragmentation. As tropical forests harbor a large fraction …
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Etude comparée de l’écologie de deux espèces jumelles de Chiroptères (Mammalia : Chiroptera ) en Belgique: l’oreillard roux (Plecotus auritus) (Linn., 1758) et l’oreillard gris (Plecotus austriacus ) (Fischer, 1829).
… differ according to certain aspects of their ecological niche in order to be able to co-exist (MacNab 1971). In order to determine the resource sharing mechanisms between the two species, we have compared the three important dimensions of their ecological requirements: the use of trophic …