Search for dissertations about: "Hibernation"

Showing result 1 - 5 of 12 swedish dissertations containing the word Hibernation.

  2. 1. Escape flight in butterflies

    Author : Maria Almbro; Cecilia Kullberg; Ronald Rutowski; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Flight; Lepidoptera; gamete load; lipid accumulation; predation risk; hibernation; Biology; Biologi; zoologi; Zoology;

    Abstract : Flight is considered to be the overarching reason for the enormous diversity and world-wide abundance of insects. Not only does flight enable great distances to be covered and new areas to be colonised, flying has also evolved to be important in most adult life-history characteristics from reproduction to anti-predator strategies. READ MORE

  4. 2. Metabolic and bioenergetic events in brown adipose tissue in relation to hibernation : studies on cells and mitochondria

    Author : Vibeke S. M. Bernson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Bark beetles facilitate the establishment of wood decay fungi

    Author : Ylva Strid; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Forests in the northern hemisphere are largely dominated by conifers and provide a key habitat for a multitude of species. Wood decay fungi, i.e. basidiomycetes, are important for nutrient cycling. READ MORE

  6. 4. Seasonal change in defensive coloration in a shieldbug

    Author : Aleksandra I. Johansen; Gabriella Gamberale-Stille; Birgitta S. Tullberg; Graeme Ruxton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Shield bug; colour change; protective coloration; cryptic; aposematic; behavioural change; etologi; Ethology;

    Abstract : Protective coloration such as aposematism and crypsis occurs in many insects but only a few species alter their defensive strategy during the same instar. We hypothesize the adult shield bug Graphosoma lineatum with an alternating black and non-melanised longitudinal striation exhibit such a change in defensive coloration. READ MORE

  7. 5. Regulatory roles of sRNAs in pathogenesis of Vibrio cholerae

    Author : Dharmesh Sabharwal; Sun Nyunt Wai; Bernt Eric Uhlin; Jörgen Johansson; Cynthia Sharma; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vibrio cholerae; sRNA; Biofilm; OmpT; RbmC; Vrp; VafA; mikrobiologi; Microbiology;

    Abstract : The Gram-negative pathogen Vibrio cholerae uses variety of regulatory molecules to modulate expression of virulence factors. One important regulatory element of microorganisms is small non-coding RNAs (sRNAs), which control various cell functions such as expression of cell membrane proteins, mRNA decay and riboswitches. READ MORE