Sökning: "behavioural adaptation"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden behavioural adaptation.

  1. 1. Movements in the dark : flying, landing and walking in insects

    Författare :THERESE REBER; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; insect; vision; light intensity; bumblebee; retina; behavioural adaptation; flight; landing; dung beetle; nocturnal adaptation; sky compass; straight-line orientation;

    Sammanfattning : Flying, as well as walking insects rely on vision to regulate locomotion, even in the dark when the visual system is much less reliable. To manage visual control of these behaviours at low light intensities, many insects have evolved optical adaptations, such as larger facet lenses and wider rhabdoms, and neural adaptations, such as spatial and temporal summation, to increase their visual sensitivity. LÄS MER

  3. 2. Spring Phenology of Butterflies : The role of seasonal variation in life-cycle regulation

    Författare :Sandra Stålhandske; Olof Leimar; Karl Gotthard; Wolf Blanckenhorn; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phenology; Life cycle regulation; Phenotypic plasticity; Local adaptation; Butterflies; Diapause; Pupal development; Anthocharis cardamines; Herbivore – host plant interaction; etologi; Ethology;

    Sammanfattning : Animals and plants in temperate regions must adapt their life cycle to pronounced seasonal variation. The research effort that has gone into studying these cyclical life history events, or phenological traits, has increased greatly in recent decades. LÄS MER

  4. 3. Phenotypic and social effects on behavioural trade-offs in Eurasian perch

    Författare :Gustav Hellström; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Trading between conflicting demands is a fundamental part in how animals interact with its environment and social surrounding. Knowledge of what factors that are affecting behavioural decisions is central in our understanding of animal adaptation and ecology. LÄS MER

  5. 4. Behavioural aspects of conservation breeding : Red junglefowl (Gallus gallus) as a case study

    Författare :Jennie Håkansson; Per Jensen; Elsbeth McPhee; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Behaviour; Conservation; Red junglefowl; Gallus gallus; Captivity; Ethology and behavioural ecology; Etologi och beteendeekologi;

    Sammanfattning : Ett stort antal utrotningshotade djurarter ingår idag i bevarandeprogram världen över. Små populationer hålls då i skyddade miljöer, exempelvis i djurparker, och i många fall är målet att återintroducera djur till naturen. LÄS MER

  7. 5. Internet-based treatment of depression and anxiety among migrants and refugees in Sweden

    Författare :Tomas Lindegaard; Gerhard Andersson; Ali Sarkohi; Birgit Wagner; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cognitive behavioural therapy; ICBT; Cultural adaptation; Refugee; Migrant; Depression; Anxiety; Kognitiv beteendeterapi; IKBT; Kulturanpassning; Flykting; Migrant; Depression; Ångest;

    Sammanfattning : There is a growing number of refugees and displaced persons worldwide, with many suffering the psychological consequences of traumatic and stressful events occurring both in their country of origin, during the migratory journey and after arriving in a new country. Despite this, there is limited evidence on how to best help refugees and migrants with the mental health problems that they sometimes experience. LÄS MER