Essays about: "populationstillväxt"

Showing result 1 - 5 of 8 essays containing the word populationstillväxt.

  1. 1. Taxonomisk indelning och bevarande av späckhuggaren

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

    Author : Isa Persson; [2017]
    Keywords : späckhuggare; orcinus orca; ekotyper; artindelning; bevarandebiologi; taxonomi;

    Abstract : Späckhuggaren är världens största delfin och en av havens toppredator. Trots att späckhuggaren uppvisar specialiseringar med avseende på social sammansättning, val av bytesdjur och ibland har morfologiska olikheter är den idag betraktad som en monotypisk art. READ MORE

  3. 2. Activity patterns of large carnivores in a fenced conservation area in Laikipia District, Kenya

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

    Author : Evelina Augustsson; [2016]
    Keywords : spotted hyena; African lion; activity patterns; movement ecology; conservation management; Crocuta crocuta; Panthera leo;

    Abstract : Large carnivores are sensitive to land-use changes and in African rangelands they have suffered seriously from an increased demand for land for agriculture and husbandry during the last decades. Mammalian carnivores are particularly exposed as they can also attack livestock, and are therefore frequently killed by farmers or wildlife managers. READ MORE

  4. 3. Study of the Taxonomy and the Inter and Intra Specific Variability of Phacopidae from the Lower Devonian of Algeria: Morphometric Approach and Meaning.

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Gauthier Hainaut; [2015]
    Keywords : Paleontology; Trilobite; Devonian; Biometry; Morphometry; Covariance;

    Abstract : An Algerian Phacopid fauna, described by Lemaître in 1952, is reexamined here. Species arereevaluated in order to be in agreement with modern taxonomy. To characterize the size and shape of our specimens, as well as inter- and intraspecific variations, a morphometric analysis was performed. Only holaspids were analyzed. READ MORE

  5. 4. Hur påverkar licensjakt björnstammens (Ursus arctos) tillväxt i Gävleborgs län?

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Fredrika Vretling; [2014]
    Keywords : brunbjörn; populationstillväxt; jakt; kvot ;

    Abstract : Licensjakt på brunbjörn har varit tillåten i Gävleborgs län i mer än ett decenium, samtidigt kan jakt påverka populationstillväxten stark eftersom björnar har en naturligt låg dödlighet. Detta gör det viktigt att förstå hur kön och ålder hos de fällda björnarna påverkar populationens framtida tillväxt. READ MORE

  6. 5. Evaluation of Ectopar for the control of the poultry red mite Dermanyssus gallinae

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Sophie Santesson; [2013]
    Keywords : Poultry red mite; Demanyssus gallinae; Ectoparasite; Control method; Laying hen;

    Abstract : The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. READ MORE