Sökning: "beetles"

Visar resultat 1 - 5 av 78 avhandlingar innehållade ordet beetles.

  1. 1. Cryptic Female Choice and Male Mating Behaviour : Sexual Interactions in Beetles

    Författare :Martin Edvardsson; Göran Arnqvist; Paul Ward; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Cryptic female choice; Copulatory courtship; Harmful male traits; Nuptial gifts; Sperm competition; Sexual selection; Tribolium castaneum; Callosobruchus maculatus; Biologi; Biology; Biologi;

    Sammanfattning : The importance of cryptic female choice, i.e. female post-copulatory influence over male reproductive success, in driving the evolution of male traits remains controversial. The main aim of this thesis was to understand the post-copulatory consequences of sexual interactions and the importance of cryptic female choice in two species of beetle. LÄS MER

  3. 2. Baltic shore-lands facing climate change

    Författare :Alma Strandmark; Sara Cousins; Martin Entling; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arthropod diversity; Baltic shores; Beetles; Climate change; Energy flows; Marine inflow; Sea level rise; Shore ecosystems; Species distribution; Spiders; Plant Ecology; växtekologi;

    Sammanfattning : This thesis provides new insight concerning drivers behind differences in arthropod diversity and abundance in Baltic shore ecosystems and how the arthropod communities might be affected when the conditions in the Baltic Sea are altered due to climate change.  The focus has been on climate related changes that are unique for coastal ecosystems, especially sea level rise and changes in the inflow of marine nutrients. LÄS MER

  4. 3. The development and implementation of software for palaeoenvironmental and palaeoclimatological research : the Bugs Coleopteran Ecology Package (BugsCEP)

    Författare :Philip Buckland; Roger Engelmark; Geoffrey Lemdahl; Paul Sinclair; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Quaternary geology; environmental archaeology; quaternary science; Coleoptera; beetles; database; environmental reconstructions; climate reconstructions; software; Mutual Climatic Range; MCR; palaeoentomology; Kvartärgeologi; Archaeology; Arkeologi; Archaeology; arkeologi;

    Sammanfattning : This thesis documents the development and application of a unique database orientated software package, BugsCEP, for environmental and climatic reconstruction from fossil beetle (Coleoptera) assemblages. The software tools are described, and the incorporated statistical methods discussed and evaluated with respect to both published modern and fossil data, as well as the author’s own investigations. LÄS MER

  5. 4. Dissertatio medica, De Meloë vesicatorio, quam cons. nobil. et exper. Facult. Med. in illustri Athen. Upsaliensi, præside ... Carolo Linnæo ... publico examini modeste submittit, Canutus Aug. Lenæus, Jemtlandus. In aud. Car. maj. ad diem XX. Dec. anni MDCCLXII. H. A. M. S

    Författare :Carl von Linné; Knut August Lenæus; Carl von Linné; Uppsala universitet; []
    Nyckelord :Beetles; Drugs; Drugs; Beetles; Skalbaggar; Läkemedel;

    Sammanfattning : .... LÄS MER

  7. 5. Biodiversity & Biofuel. Harvest of Logging Residue Affects Arthropods

    Författare :Karolina Nittérus; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biodiversity; beetles; biofuel; Carabidae; Cerambycidae; Celeoptera; forestry; habitat; structure; logging residue; Lycosidae; microhabitat choice; slash; species compositin; species richness; spiders; structural comlexity; whole-tree harvest;

    Sammanfattning : .... LÄS MER