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  • 1
    UID:
    gbv_1869691717
    Format: 119 Seiten , Illustrationen, Diagramme
    Content: Predator-forager interactions are a major factor in evolutionary adaptation of many species, as predators need to gain energy by consuming prey species, and foragers needs to avoid the worst fate of mortality while still consuming resources for energetic gains. In this evolutionary arms race, the foragers have constantly evolved anti-predator behaviours (e.g. foraging activity changes). To describe all these complex changes, researchers developed the framework of the landscape of fear, that is, the spatio-temporal variation of perceived predation risk. This concept simplifies all the involved ecological processes into one framework, by integrating animal biology and distribution with habitat characteristics. Researchers can then evaluate the perception of predation risk in prey species, what are the behavioural responses of the prey and, therefore, understand the cascading effects of landscapes of fear at the resource levels (tri-trophic effects). Although tri-trophic effects are well studied at the predator-prey interaction level, little is known on how the forager-resource interactions are part of the overall cascading effects of landscapes of fear, despite the changes of forager feeding behaviour - that occur with perceived predation risk - affecting directly the level of the resources. [...]
    Note: Dissertation Universität Potsdam 2023
    Additional Edition: Erscheint auch als Online-Ausgabe Mendes Ferreira, Clara Indirect, tri-trophic effects of fear on biodiversity Potsdam, 2023
    Language: English
    Keywords: Hochschulschrift
    Author information: Schielzeth, Holger 1976-
    Author information: Blaum, Niels 1970-
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