Sökning: "common toad"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden common toad.

  1. 1. How does temperature affect the severity of Bd infection in the common toad (Bufo bufo)? : A test of thermal mismatch hypothesis

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Felix Fridh; [2023]
    Nyckelord :chytridiomycosis; amphibians; fungi; fungus; thermal mismatch hypothesis; bufobufo; common toad; Batrachochytrium dendrobatidis; Bd;

    Sammanfattning : Batrachochytrium dendrobatidis (Bd) is a fungus that causes chytridiomycosis in amphibians. This fungus is an invasive species that has spread all over the world and is causing mass deaths in many areas. Bd has an efficient life cycle which targets suitable hosts and causes disturbances in amphibian osmoregulation and eventually death. LÄS MER

  3. 2. The use of environmental DNA (eDNA) in biological monitoring of the Natterjack toad (Epidalea calamita)

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Lærke Breum Blom; [2018]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Environmental DNA (eDNA) is a promising new tool in the field of conservation management, which can contribute to non-destructive species determination as well as improved data on species occurrence. Still, it is important to gain knowledge on how eDNA works compared to conventional monitoring methods in order to evaluate the detection efficiency. LÄS MER

  4. 3. Groddjur i Solna - Inventering, spridningsvägar och förbättringsförslag

    Magister-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Johan Salomonsson; [2016]
    Nyckelord :groddjur; Solna; inventering; spridningsvägar; fragmentering; mindre vattensalamander; större vattensalamander; vanlig groda; vanlig padda; barriär; leklokal; viltfil; Ulriksdal; kompensationsåtgärd; ekodukt; spridningskorridorer; faunapassager; stadsplanering; E4; Lissotriton vulgaris; Triturus cristatus; Rana temporaria; Bufo bufo;

    Sammanfattning : The number of amphibians has decreased worldwide. Causes include landscape fragmentation and habitat loss. In Sweden all amphibian species are protected and according to the EU Habitats Directive, both the great crested newt (Triturus cristatus) and its habitat are protected. LÄS MER

  5. 4. Planning green infrastructure using habitat modelling : a case study of the common toad in Lomma Municipality

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :William Walker; [2014]
    Nyckelord :adaption to climate change; green infrastructure; planning; ecosystem services; habitat model; common toad; Bufo bufo; Earth and Environmental Sciences;

    Sammanfattning : For an ecosystem to be able to continue to provide important services to society, it must be able to adapt to change. As part of an ecosystem, the ability of a species to migrate in the landscape is vital for the adaption to change. A green infrastructure allows the movement of species in a landscape fragmented by human influenced land use. LÄS MER

  7. 5. Lek hos Stinkpadda (Bufo callamita): jämförelse av restaurerade och ickerestaurerade hällkar

    Kandidat-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Malin Falk; [2014]
    Nyckelord :stinkpadda; bufo calamita; restaurering; reproduktion;

    Sammanfattning : The natterjack toad (Bufo calamita) is one of three species of toads living in Sweden. During the last decades declines in population numbers have been detected and are thought to be primarily due to loss of habitat, overgrown breeding ponds and competition from common toad (Bufo bufo) and common frog (Rana temporaria). LÄS MER