Sökning: "Insects"

Visar resultat 1 - 5 av 238 avhandlingar innehållade ordet Insects.

  1. 1. Neuropeptide signaling in insects : peptide binding sites, tachykinin receptors and SNAP-25

    Författare :Helena Anna Dagmar Johard; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Neuropeptide; insects;

    Sammanfattning : .... LÄS MER

  3. 2. Insects as exotoxicological tools : uptake, accumulation, biomagnification and excretion of heavy metals in terrestrial insects

    Författare :Lars Lindqvist; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 3. Temperature variation in time and space, and its effects on insects

    Författare :Loke von Schmalensee; Philipp Lehmann; Gotthard Karl; Michael Angilletta; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; temperature variation; thermal performance; insects; Lepidoptera; thermal adaptation; thermal ecology; microclimate; seasonality; zoologisk ekologi; Animal Ecology;

    Sammanfattning : Nature is variable. Unfortunately, compressed representations of this variable world, like averages, are often lossy and insufficient for ecological purposes. This is particularly true for temperature variation, which organisms typically respond to in a nonlinear way. LÄS MER

  5. 4. Micro- and macroevolutionary aspects of body size diversification and thermal adaptation in insects

    Författare :John Waller; Evolutionär ekologi; []
    Nyckelord :Evolution; body size; Insects; dragonflies; damselflies; Odonata; Comparative methods; fossils;

    Sammanfattning : Body size and body temperature are the two most important traits in biology. In this thesis I show how these twovariables have shaped the evolution of insects over the last 300 million years. LÄS MER

  7. 5. Ommatidial adaptations for vision in nocturnal insects

    Författare :Rikard Frederiksen; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gain of transduction; Information rate; Signal-to-noise ratio; Apposition eye; Optical sensitivity; Nocturnal insects; Superposition eye; Vision;

    Sammanfattning : Nocturnal vision is a demanding task for insects with small eyes. As it gets dimmer the noise imposed by the stochastic nature of photon arrival makes vision unreliable. Despite this, there are quite a number of animal species that are active at night and apparently see well. LÄS MER