Search for dissertations about: "prey choice"
Showing result 11 - 13 of 13 swedish dissertations containing the words prey choice.
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11. Puumala virus dynamics in bank voles along habitat and community gradients : the ecology and risk of an emerging infectious disease
Abstract : The majority of recent infectious disease outbreaks are zoonotic, i.e. caused by pathogens shared between humans and other vertebrates, and many of those originate in wildlife. The life cycle of zoonotic diseases is complex, and involves at least one non-human host. READ MORE
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12. Phenotypic plasticity and the evolution of an inducible morphological defence in crucian carp
Abstract : In this thesis, I have investigated factors (cues, benefits, and costs) affecting the evolution of an inducible morphological defence in crucian carp (Carassius carassius). Inducible defences are favoured over permanent defences when prey have reliable cues to detect predators, when defences are effective but costly, and when predation pressure is variable and unpredictable, but sometimes strong. READ MORE
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13. Quantifying Risk in Epidemiological and Ecological Contexts
Abstract : The rates of globalization and growth of the human population puts ever increasing pressure on the agricultural sector to intensify and grow more complex, and with this intensification comes an increased risk of outbreaks of infectious livestock diseases. At the same time, and for the same reasons, the detrimental effect that humans have on other species with which we share the environment has never been more apparent, as the current rates of species loss from ecological communities rival those of ancient mass extinction events. READ MORE
