Sökning: "Recapture"

Visar resultat 1 - 5 av 34 uppsatser innehållade ordet Recapture.

  1. 1. Detectability of insects in Malaise traps : assessing insect detectability in Malaise traps through High-Resolution Sampling, and development of a novel marking technique

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Viktor Gårdman; [2023]
    Nyckelord :Malaise trap; activity; movement; weather; mark-recapture; detectability; insects;

    Sammanfattning : Malaise traps are extensively used in insect surveys and studies, yet the detectability of insects in relation to the traps remain unknown. Detectability is the odds that a taxon ends up in a trap, given that the taxon is present in the area around the trap. LÄS MER

  3. 2. Evaluation of photo-ID technique to estimate harbour seal numbers in Gullmarsfjorden, Sweden

    Kandidat-uppsats, Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Författare :Simon Isaksson; [2022-10-26]
    Nyckelord :;

    Sammanfattning : To be able to preserve areas in nature in a careful way a good understanding of the biodiversity living there is needed. The harbour seals are a top predator that affect and is affected by the whole food chain and plays a vital role in the ecosystem. LÄS MER

  4. 3. Status of three great crested newt Triturus cristatus populations after translocation

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Filippa Hedenberg; [2022]
    Nyckelord :amphibians; Caudata; capture-mark-recapture; breeding population size; body condition; conservation;

    Sammanfattning : The great crested newt Triturus cristatus has a high legal protection in Europe through the Bern Convention and Habitats Directive, which often come into conflict with human development. Translocation of populations are increasingly being used as a “solution” to this conflict, but the implications for the populations’ status are not known. LÄS MER

  5. 4. Long-term population dynamics in a population of grass snakes (Natrix natrix) : and implications of climate change

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Ludvig Palmheden; [2022]
    Nyckelord :body condition; hibernaculum; long-term data; mark-recapture; population size;

    Sammanfattning : The impact of climate change on reptile populations is poorly studied, and this includes snakes, which are elusive by nature, making it problematic to preform long-term population studies. Here we have done both. LÄS MER

  7. 5. How do forest characteristics relate to brown bear (Ursus arctos) density? : focusing on basal area, age, height, and field layer

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Jeanette Jonsson; [2022]
    Nyckelord :brown bear; ursus arctos; linear mixed model; forest characteristics; bear density;

    Sammanfattning : Brown bear (Ursus arctos) is one of our most common large carnivores. The historic population in Sweden has been reduced due to conflicts with humans. The diet of the brown bear varies with the season and location. LÄS MER