Sökning: "two-species model"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden two-species model.

  1. 1. Predicting the future summer range of a declining Arctic waterfowl: the Greenland White-fronted Goose (Anser albifrons flavirostris)

    Kandidat-uppsats,

    Författare :Emil Lundahl; [2022]
    Nyckelord :;

    Sammanfattning : This study investigates what the future might hold for an endemic goose species, found exclusively in the low Arctic region of West Greenland. Facing a decline since four decades, the Greenland White-fronted Goose constitutes one of few goose populations showing a declining trend. LÄS MER

  3. 2. Developing saddleback and emperor tamarin SNP set for in situ genotyping

    Master-uppsats, Uppsala universitet/Institutionen för ekologi och genetik; Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Samantha López Clinton; [2022]
    Nyckelord :SNP genotyping; GT-Seq; conservation genomics; saddleback tamarin; emperor tamarin; Genotipado por SNPs; GT-seq; genómica para la conservación; pichico común; pichico emperador;

    Sammanfattning : Many countries in the global south - which harbour the majority of the world’s biodiversity - face serious resource limitations and a lack of access to affordable sequencing services. Furthermore, biodiversity research and monitoring of non-model, threatened and/or cryptic species often relies on low-quality non-invasive genetic samples. LÄS MER

  4. 3. How Hunters’ Harvest Rate Varies in Response to Population Densities of Fallow Deer (Dama dama), Roe Deer (Capreolus capreolus), and Wild Boar (Sus scrofa)

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Felicia Skorsdal; [2022]
    Nyckelord :Bayesian statistics; Capreolus capreolus; Dama dama; Hunters’ harvest rate; Ungulate management; Spatiotemporal analysis; Sus scrofa;

    Sammanfattning : For many species, population size data is difficult to obtain or even unavailable. Therefore, estimations or indirect abundance measures of populations are crucial for ungulate management. Hunting has an important role in wildlife management, and is a partnership between state, landowners, and hunting communities. LÄS MER

  5. 4. Growth and management of Silver birch and Hybrid aspen in southern Sweden

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Mari Tuvikene; [2021]
    Nyckelord :Betula pendula Roth; ; Populus × wettsteinii Hämet-Ahti = P. tremula L. × P. tremuloides Michx.; ; plantation; young stand; simulation; fertilization;

    Sammanfattning : Nowadays, the changing climate and the risks associated with it urge us to re-evaluate our silvicultural practices. Due to the increasing demand for wood and good economy amongst other factors, Swedish forest landscape is dominated by two species – Norway spruce Picea abies (L.) Karst. and Scots pine Pinus sylvestris (L. LÄS MER

  7. 5. Host plant selection in closely related butterfly species due to reproductive interference: Modelling a tritrophic system

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Alexandros Bantounas; [2021]
    Nyckelord :reproductive interference; habitat selection; modelling; phytophagous insects;

    Sammanfattning : Host plant selection is an important process during the life cycle of lepidopterans, providing ovipositing sites for adults and food resources for the larvae. The processes behind host plant selection have been extensively studied, especially in closely related species in the context of niche separation. LÄS MER