Essays about: "sympatric"
Showing result 1 - 5 of 19 essays containing the word sympatric.
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1. Can spawning site temperature regimes cause spawning time divergence in sympatric whitefish ecotypes? : Comparison of two hypotheses
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : The spawning time differs between sympatric ecotypes of lake-dwelling whitefish (Coregonus lavaretus) and this temporal divergence can be linked to the type of spawning habitat used (i.e., streams, littoral or profundal). READ MORE
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2. Sympatric Divergence in Whitefish Dwarfs : An investigation of phenotype-environment correlations in whitefish dwarfs
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Recent studies have found populations of European Whitefish (Coregonus lavaretus) to be under the process of divergence induced by a predator (pike, Esox lucius). This has caused whitefish to diverge into similar ecotypes but in separate lakes. READ MORE
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3. Predation as a driver of reproductive isolation : Differences in predation risk between whitefish (Coregonus lavaretus) spawning habitats
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : The origin and maintenance of much of natural biodiversity can likely be explained by theecological speciation theory. Ecological speciation is defined as the process whenreproductive isolation arises through divergent selection caused by ecological factors, such asbiotic interactions and abiotic conditions. READ MORE
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4. Movement ecology of ungulate communities : effect of species densities and habitat selection
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Animal movement is a topic important in various different ecological perspectives. Ungulate species are an important source of income, hunting game and subject for protection and management all across the globe. READ MORE
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5. How does species density affect activity patterns of three sympatric ungulate species in a Scandinavian boreal forest?
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Ungulate management becomes more complex when new species are being introduced and favorable habitats are created by commercial forestry and other forms of land use, resulting in increasing populations. Climate change is also affecting their distributions by altering their ability to spread from their historical range. READ MORE
