Search for dissertations about: "Peter Eklöv"
Showing result 1 - 5 of 14 swedish dissertations containing the words Peter Eklöv.
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1. Effects of behavioural flexibility and habitat complexity on predator-prey interactions in fish communities
Abstract : .... READ MORE
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2. Fish population responses to climate change : Causes and consequences
Abstract : Lake environments are heterogeneous, and animals show a variety of adaptations to deal with this heterogeneity. Fish often show intraspecific variation in diet, metabolism, and behavior, corresponding to their habitat use. READ MORE
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3. Ecology across Boundaries : Food web coupling among and within ecosystems
Abstract : Cross-boundary movements of energy and material are ubiquitous. Freshwater ecosystems receive nutrients, dissolved, and particulate organic matter from adjacent terrestrial ecosystems, whereas terrestrial ecosystems mainly receive prey organisms and detritus deposited by physical processes such as floods from freshwater ecosystems. READ MORE
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4. Bottom-up and top-down regulation of heterogeneous lake food webs
Abstract : Food webs are networks of organisms linked by trophic interactions that regulate the responses of ecosystems to environmental change. Such regulation is a result of the effects of resources on the abundance of their consumers (i.e. bottom-up effects) and/or the influence of consumers on the abundance of their resources (i. READ MORE
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5. Climate change impacts on production and dynamics of fish populations
Abstract : Ongoing climate change is predicted to increase water temperatures and export of terrestrial dissolved matter (TDOM) to aquatic ecosystems influencing ecosystem productivity, food web dynamics and production of top consumers. Ecosystem productivity is mainly determined by the rates of primary production (GPP) in turn controlled by nutrients, light availability and temperature, while temperature alone affect vital rates like consumption and metabolic rates and maintenance requirements of consumers. READ MORE