Essays about: "predator-prey"

Showing result 11 - 15 of 28 essays containing the word predator-prey.

  1. 11. Removing noise with an Autoencoder in a Predator-Prey Ordinary Differential Equation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Conrad Hildebrand; Michael Mathsson; [2020]
    Keywords : ;

    Abstract : When studying populations of animals, you might want to try to predict the future population growth of the animals within a region. While there are other factors in play and depending on the looked at species, one of the major factors to look at can be the predator-prey relationship between two species. READ MORE

  3. 12. Fire effects in a landscape of fear : food availability and perceived predation risk as potential determinants of patch utilization by herbivore prey

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : David Kymmell; [2019]
    Keywords : landscape of fear; forest fire effects; herbivore prey; camera trapping;

    Abstract : Context: A major effect of climatic change is the global increase in forest fires, which potentially creates an increase in food availability for herbivorous species. Also vegetation density and the numbers of tree logs increase in burned sites, and this is thought to influence the perceived risk of herbivore prey species, which affects their anti‐predator behaviour and thereby the patch utilization. READ MORE

  4. 13. Seasonal changes in clupeids maturation constrains the food quality of chicks of the common guillemot (Uria aalge) : A case study of a potential mismatch, from the perspective of the common guillemot chicks on Stora Karlsö, the Baltic Sea

    University essay from Stockholms universitet/Stockholm Resilience Centre

    Author : Emelie Delphin; [2018]
    Keywords : Common guillemot Uria aalge ; Sprat Sprattus sprattus ; Herring Clupea herengus ; Match-mismatch hypothesis; the Baltic Sea;

    Abstract : Background: Common guillemots are integral elements of the Baltic Sea marine ecosystem. They possess life-history characteristics such as relatively long lifespan, quite low fecundity resulting in only one egg per breeding season – characteristics that make them particularly vulnerable to even small changes in the environment. READ MORE

  5. 14. Play behaviour in Urial (Ovis orientalis bocharensis) lamb

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Irene Guanyabens Garrido; [2018]
    Keywords : play behaviour; ural lamb;

    Abstract : Welfare constitutes of health, physiology, behaviour and reproduction. It becomes very important when a species suffers in any of these parameters and thus, the assessment of welfare should be carried out. Play behaviour has been identified as a positive behaviour performed when satisfactory circumstances are present. READ MORE

  6. 15. Have wolves (Canis lupus) finally scared moose (Alces alces) in Sweden?

    University essay from SLU/Dept. of Ecology

    Author : Mark Jamieson; [2018]
    Keywords : landscapes of fear; predator-prey interactions; habitat selection; resource selection functions; ecology;

    Abstract : Carnivores are coming back to Europe and the repercussions of their return on prey species is not fully understood. Research from North American studies suggests predators can indirectly affect how ungulates will select their habitat which can result in a change in vegetation growth as browsing pressure is relaxed in risky areas. READ MORE