Essays about: "Mattis Jansson"

Found 2 essays containing the words Mattis Jansson.

  1. 1. Effects of unsown patches in autumn-sown fields on Skylark territory densities : a study on skylark plots made in central Sweden

    University essay from SLU/Dept. of Ecology

    Author : Mattis Jansson; [2012]
    Keywords : Skylark; conservation action methods; skylark plots; food availability; winter cereals; autumn-sown; birds; agricultural landscape; landscape heterogenity;

    Abstract : Intensified cultivation of farmland is widely recognized to act negatively on many organisms, including birds as the Skylark (Alauda arvensis). During the last decades, this species has been showing a population decline of about 50-75 percent in northwestern Europe, including Sweden. READ MORE

  3. 2. Fåglar i urbana miljöer : kvaliteten på urbana habitat och om beståndstäthet är ett bra mått på habitatkvalitet

    University essay from SLU/Dept. of Ecology

    Author : Mattis Jansson; [2010]
    Keywords : habitatkvalitet; urbanisering; urbana miljöer; source-sink; beståndstäthet; reproduktionsframgång; Habitat quality; reproduction success; demographic parameters; urban environments; urbanization; population density; demografiska parametrar;

    Abstract : The urbanization of the world is increasing. How it affects bird populations have been well studied during the last decade, and comparisons between urban and non-urban habitats have been carried out. A common method for measuring habitat quality is to calculate the population density. READ MORE