Essays about: "Coleoptera"

Showing result 11 - 15 of 32 essays containing the word Coleoptera.

  1. 11. Stratigraphic and palaeoenvironmental observations in the deposits of a postglacial kettle hole, in the county of Västernorrland

    University essay from Umeå universitet/Institutionen för idé- och samhällsstudier

    Author : Genofeva Eva Kourela; [2020]
    Keywords : Multiproxy analysis; palaeoenvironment; minerals; peat accumulation; kettle hole; Coleoptera; environmental archaeology;

    Abstract : The increased human impact on the environment and climate after the retreat of the Last Glacial has strengthened its importance in the region of Västernorrland where Mesolithic sites are evident. This study focuses on a multiproxy analysis, where archaeological and natural science methods are combined to test several techniques in a peat sample. READ MORE

  3. 12. Biodiversity of aquatic invertebrates in urban ponds: effects of land use

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Roberta Hedberg; [2019]
    Keywords : ;

    Abstract : Urban ponds have the potential to hold large abundance and diversity of aquatic invertebrates, which could maintain an overall high biodiversity in the urban landscape. Little is known about how aquatic systems, such as ponds, are affected by the fast rate of urbanisation caused by an increasing human population together with the expansion of cities. READ MORE

  4. 13. Microbregma emarginatum as an indicator for coniferous forests with high conservation values

    University essay from SLU/Dept. of Ecology

    Author : Matilda Gille; [2019]
    Keywords : indicator species; conservation biology; habitat loss; coniferous forest; forest habitats; Norway spruce; Picea abies; Coleoptera; Ptinidae;

    Abstract : The use of indicator species is wide spread and an important tool in nature conservation for the identification of valuable biotopes and prioritizing conservation efforts. This study aimed to test if it can be a problem to use indicator species that builds on expertise rather than documented studies. READ MORE

  5. 14. Trädsvampborrare i ettåriga tickor : betydelsen av värdsvamparnas släktskap och miljövariabler

    University essay from SLU/Dept. of Ecology

    Author : Sofia Lundell; [2017]
    Keywords : trädsvampborrare; Ciidae; tickor;

    Abstract : Trädsvampborrare (Ciidae) är en skalbaggsfamilj som lever i och är viktiga nedbrytare av vedlevande basidiesvampar, så kallade tickor. I en fältstudie har jag undersökt vilka arter av trädsvampborrare som lever i ettåriga tickor med frågeställningen om trädsvampborrarna i större utsträckning väljer närbesläktade värdsvampar än svampar som står långt ifrån varandra fylogenetiskt. READ MORE

  6. 15. Explaining population size of the saproxylic beetle Prionus coriarius as a function of available dead wood resources

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Isak Sarac; [2016]
    Keywords : pheromone; coleoptera; cerambycidae; dispersal; threshold; conservation;

    Abstract : Dead wood is an important substrate for many forest bound species including the large group of dead wood associated (saproxylic) beetles. Saproxylic beetles have species specific substrate requirements, that may vary according to factor such as tree species, object type, trunk diameter and decomposition stage. READ MORE