Essays about: "prey selection"
Showing result 1 - 5 of 23 essays containing the words prey selection.
-
1. Diving Deep: Seabird foraging tactics and local prey field
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. READ MORE
-
2. The Great cormorant, Phalacrocorax carbo, as a predator of the invasive Round goby
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Dispersal of invasive species poses a significant threat to biodiversity loss globally and is one of the major threats to the ecological condition in the Baltic Sea. The Baltic Sea is facing potential problems caused by the Round goby, Neogobius melanostomus, which was presumably introduced via ballast water. READ MORE
-
3. Differences in velocity between the sexes and stages of courtship in a dance fly
University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskapAbstract : Dance flies (Diptera: Empididae: Empidinae) are famous for their elaborate mating behaviour, which can be broken down to three distinct stages in adults: hunting, swarming, and mating. In many species, males hunt for prey that they present as nuptial gifts to recipient females in swarms, after which the pair will copulate in the air or after landing on nearby vegetation. READ MORE
-
4. Associations between body size polymorphism in Arctic charr and benthic invertebrate communities – clues to mechanisms for population differentiation?
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Many fish populations in the north have divided into coexisting ecotypes that differ in body size. While such polymorphic fish populations have been studied for many years, the understanding of how different types of selection contribute to the formation of dwarf- and giant ecotypes remains limited. READ MORE
-
5. Diversification of predators in multi-trophic communities: A trait-based theoretical approach
University essay from Lunds universitet/Examensarbeten i bioinformatikAbstract : One of the main challenges in ecology and evolutionary biology is to understand how biodiversity emerges and is maintained, given the complexity of ecological and evolutionary processes combined. Understanding how multi-trophic interactions occur from a theoretical perspective is highly relevant for our understanding of diversification in complex ecosystems. READ MORE
