Advanced search

Showing result 1 - 5 of 24 essays matching the above criteria.

  1. 1. Quantity and quality of oaks (Quercus) as suitable habitats for the longhorn beetle species Plagionotus detritus : An inventory study in Stockholm and Uppsala County, Sweden

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Ida Widegren; [2023]
    Keywords : Plagionotus detritus; P. detritus; Cerambycidae; Cerambycinae; longhorn beetle; insects; habitat; oak; Quercus; conservation; ecology; endangered; threatened;

    Abstract : The longhorn beetle Plagionotus detritus is associated with newly dead oak wood and is declining throughout its distribution range. In Sweden, P.detritus has displayed one of the most dramatic reductions in distribution recorded for insect species and is near regional extinction. READ MORE

  3. 2. Stödgrödors betydelse för pollinatörer : en litteraturstudie om möjligheter och utmaningar vid nyttjandet av understödjande grödor i agroekosystem

    University essay from SLU/Dept. of Ecology

    Author : Ulrika Högberg; [2022]
    Keywords : pollinering; pollinatörer; ekosystemtjänster; understödjande grödor; stödgrödor;

    Abstract : Pollinatörer utför en viktig ekosystemtjänst då de bidrar till att säkerställa skörden av flertalet livsmedelsgrödor. Andelen pollinerande insekter i jordbruket har dock minskat till följd av ett flertal störningsfaktorer och brist på blomresurser. READ MORE

  4. 3. The effects of a land reform program on smallholder farmers’ livelihoods and availability of edible insects for food and nutrition security : the case of the Zvimba and Mhondoro districts of Zimbabwe

    University essay from SLU/Dept. of Urban and Rural Development

    Author : James Chikonyani; [2022]
    Keywords : food security; livelihoods; edible insects;

    Abstract : Edible insects are an important source of nutrition for rural populations in many parts of the world, including Zimbabwe. This research examines the contribution of edible insects to the livelihoods, food and nutrition security, and the strategies and mechanisms that can be implemented to ensure the preservation and better management of the environment and edible insects in Zvimba and Mhondoro districts. READ MORE

  5. 4. Direct and indirect effects of roe deer (Capreolus capreolus) herbivory on an island population of Chequered blue butterfly (Scolitantides orion).

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Alexandra Johansson; [2021]
    Keywords : Scolitantides orion; Chequered blue butterfly; oviposition; oviposition behaviour; Indirect and direct effects; herbivory;

    Abstract : Herbivory by ungulates is a known agent of disturbance in many ecological systems around the globe. At high abundances and through a selective foraging behaviour herbivory may inflict significant direct and indirect effects on local plant and animal communities. READ MORE

  6. 5. The effect of restoration of semi-natural grassland on arthropod populations

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Molly Wikingson; [2021]
    Keywords : Arthropoda; Conservation; Grasslands; Landscape factors; Restoration success; Species rich communities;

    Abstract : Semi-natural grasslands are valuable ecosystems that have a high biodiversity. Unfortunately, a lot of this biodiversity is being lost as semi-natural grasslands are declining in both size and number. Restoration to reestablish semi-natural grasslands is often done by removing shrubs and trees and planting seeds. READ MORE