Essays about: "miljövetenskap"

Showing result 16 - 20 of 687 essays containing the word miljövetenskap.

  1. 16. MODELLING THE SMOLT PRODUCTIVITY OF BROWN TROUT (SALMO TRUTTA) IN HAGA Å

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Lukas Almgren; [2023-10-30]
    Keywords : Brown trout; Salmo trutta; Trout habitat score; THS; Haga å; electro-fishing survey;

    Abstract : The brown trout (Salmo trutta) is a facultatively anadromous species, some individuals migrate from the rearing environment in the rivers to the sea while other individuals stay in fresh water. To determine the suitability of a stream for juvenile trout the organization SGBALANST has developed what is called the "Trout habitat score" (THS) model. READ MORE

  3. 17. Non-native plants in mountain ecosystems. An exploration of plant diversity and its response to road disturbance and alien invasion.

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Author : Anderberg Lina; [2023-10-19]
    Keywords : ;

    Abstract : Understanding patterns of invasive plants becomes ever more important as anthropogenic presence continues to facilitate their spread. In mountainous landscapes, cases of establishment by nonnative species have become frequent, despite the environmentally unfavorable conditions for plants less adapted to the harsh climate. READ MORE

  4. 18. Monitoring marine alien and invasive species. A comparison between the traditional method (eRAS) and DNA-based identification of species.

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Josefin Holm; [2023-08-22]
    Keywords : ;

    Abstract : There is a major concern with the uncontrolled spreading of alien and invasive species, caused by an increase in travelling by boat globally. These are dispersed via ballast water, by fouling on ships and in fishing gear. READ MORE

  5. 19. African elephants' effect on the temporal use of elephant highway by predator and prey. Makgadikgadi Pans National Park.

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Rebecka Relfsson; [2023-08-18]
    Keywords : African savanna elephant; elephant highways; interspecies interactions; predation avoidance; predator-prey interaction; temporal activity;

    Abstract : African savanna elephants (Loxondonta africana) are the world’s largest land-mammal and are considered a keystone species. The effect they have on vegetation and their environment is well known, but their effect on other animal species is less studied. READ MORE

  6. 20. A computational model of metapopulation dynamics and organism-mediated nutrient flow

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Amanda Hansson; [2023-08-07]
    Keywords : computational model; population dynamics; metapopulation dynamics; nutrient flow; simulation; spatially explicit; individual-based;

    Abstract : The aim of this project was to assess, using in-silico experiments, how different life history char-acteristics, such as age at maturity and dispersal ability of individuals, influence the dynamics of a metapopulation. To achieve this, a novel model of a spatially explicit metapopulation, with organ-ism-mediated nutrient flow between fragmented habitat patches, was implemented by means of computer simulations. READ MORE