Sökning: "prey selectivity"

Hittade 3 uppsatser innehållade orden prey selectivity.

  1. 1. The Great cormorant, Phalacrocorax carbo, as a predator of the invasive Round goby

    Kandidat-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Louisa Alvarez Blomgren; [2023]
    Nyckelord :Round goby; invasive species; Great cormorant; predator-prey interaction; prey selectivity;

    Sammanfattning : 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. LÄS MER

  3. 2. Can the native shore crabs (Carcinus maenas) become a barrier to the invasion of the round goby (Neogobius melanostomus) in Öresund, southern Baltic Sea?

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Nikolaos Papagiannopoulos; [2018]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : The round goby (Neogobius melanostomus) is a non-indigenous species to the Baltic Sea that has drawn the attention of many researchers in the last decade due to its rapid spreading and its impact on the local fauna. With recent concerns about the dispersal of the round goby towards the North Sea, the aim of this study was to determine if the native shore crab could compete with the invaders and prevent their advance. LÄS MER

  4. 3. Size selective predation of pike on whitefish : The effects on resource polymorphism in Scandinavian whitefish populations

    Kandidat-uppsats, Institutionen för ekologi, miljö och geovetenskap

    Författare :Johan Fahlman; [2014]
    Nyckelord :pike; whitefish; predation; resource polymorphism; divergence;

    Sammanfattning : The mechanisms behind speciation have been subject of debate for centuries. The presence of resource polymorphism has been discovered to play a significant part in this process, and has been proven to induce phenotypic and genetic divergence. LÄS MER