Essays about: "Wood species"

Showing result 6 - 10 of 301 essays containing the words Wood species.

  1. 6. Population dynamics of the spruce bark beetle Ips typographus in forest conservation areas and the interaction with biodiversity and natural enemies

    University essay from SLU/Dept. of Ecology

    Author : Evelina Andersson; [2023]
    Keywords : spruce bark beetle; population dynamics; conservation areas; biodiversity; natural enemies; species richness; managed forests; woodland key-habitats; nature reserves;

    Abstract : Biodiversity is rapidly decreasing and in need of more conservation efforts. However, the tree-killing European spruce bark beetle, Ips typographus (L.), has made forest conservation controversial by affecting conservation areas and possibly adjoining managed forests, yet is still a keystone species leaving decaying wood promoting biodiversity. READ MORE

  3. 7. Skapandet av högstubbar : en undersökning av skördarförares perspektiv och systemstöd inom Mellanskog

    University essay from SLU/School for Forest Management

    Author : Emma Boström; Malin Svedberg; [2023]
    Keywords : död ved; avverkning; PEFC;

    Abstract : Mellanskog är en skogsägarförening som är verksam från Gotland till Härjedalen. Vid generell hänsyn i skogen lämnas död ved, bland annat i form av högstubbar. Högstubbar bidrar till viktiga livsmiljöer för många arter. READ MORE

  4. 8. Growth and quality of silver birch with different improvement levels

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Hanna Liebner; [2023]
    Keywords : Betula pendula Roth; genetic improvement; tree breeding; diameter growth; stem quality; branches quality;

    Abstract : Silver birch is the most important broadleaf tree species in the context of wood production in Fennoscandia stating 12.9% of the total volume in Sweden (Nilsson et al., 2021). READ MORE

  5. 9. Animal personality in ants : Does the red wood ant (Formica rufa) express personality traits?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Malin Sjöberg; [2023]
    Keywords : Animal personality; Scototaxis; Formica rufa;

    Abstract : A recent theory within behavioural ecology suggests that some animal behaviour traits are consistent over time and over different contexts as part of an animals’ “personality”. Animal personality has generally been accepted within vertebrates, but the idea of invertebrates expressing personality has long been meet with scepticism. READ MORE

  6. 10. Insects in conifer logs : their association to the polypore fungi Amyloporia sinuosa, A. xantha and Neoantrodia serialis and impact of aggregations of wood

    University essay from SLU/Dept. of Ecology

    Author : Tore Dahlberg; [2023]
    Keywords : polypores; dead wood volume; Amyloporia sinuosa; A. xantha; Neoantrodia serialis; Nemapogon fungivorellus; Agnathosia sandoeensis;

    Abstract : A large number of insects are associated with polypores. They can be monophagous, polyphagous and use several fungal hosts, or be parasites on the insects utilize the fungus. The insect assemblage for some polypores is well investigated but there is still a lack of knowledge for many species. READ MORE