Search for dissertations about: "Predator-prey interaction"
Showing result 6 - 10 of 13 swedish dissertations containing the words Predator-prey interaction.
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6. Local and landscape-level impacts of agricultural intensification on arthropod communities and their interaction networks
Abstract : Arthropods play a central role in agricultural landscapes being responsible for the delivery of many ecosystem services such as pollination, biological pest control, and nutrient cycling. But the current global decline of arthropods is intensified by habitat modification, loss and fragmentation, pesticide use and other intensive management practices. READ MORE
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7. Piscivore-prey fish interactions - consequences of changing optical environment
Abstract : Predator-prey interactions are a primary structuring force in aquatic systems. A change in the predator-prey interactions may cause a change in the strength of trophic cascades and even resulting in ecosystem shifts. READ MORE
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8. The role of young-of-the-year fish in lake ecosystems
Abstract : Food chain theory is based on consumption; that is, presupposing that the only important interaction between organisms is that they actually meet in an unstructured environment and that one of them is consumed. Recently, studies, including biomanipulation projects, have indicated that trophic interactions are more complex than predicted by food chain theory. READ MORE
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9. Food webs and the distribution of body sizes
Abstract : Many ecologically relevant life-history traits of organisms, (such as generation time and ingestion rate) are significantly correlated to body size. Since these individual and species characteristics can affect the interactions between the species in a community, it is possible that the distribution of body sizes (in communities) can affect different properties of foodwebs as well. READ MORE
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10. Understanding the spatiotemporal dynamics of demersal fish species in the Baltic Sea
Abstract : Species are not homogeneously distributed and the interdependencies between trophic interactions, environmental factors and anthropogenic forcing determine how their distribution changes over time. Hence taking into account both the spatial and temporal components of the dynamics of potentially interacting species is essential in management and conservation. READ MORE