Search for dissertations about: "birds"

Showing result 1 - 5 of 264 swedish dissertations containing the word birds.

  1. 1. Birds and Borrelia

    University dissertation from Umeå : Umeå universitet

    Author : Björn Olsen; Umeå universitet.; Umeå universitet.; [1995]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Zoonotisk ekologi; Zoonotic Ecology; Virology; Virologi; Microbiology; Mikrobiologi; Borrelia; Ixodes ticks; Birds; Epidemiology;

    Abstract : The Lyme disease causing spirochaete Borrelia burgdorferi sensu lato is transmitted by ticks within the genus Ixodes. These ticks are liberal host seekers and parasitise mammals, birds and reptiles.Prior to this study, the distribution of I. ricinus ticks and Lyme disease was thought to be restricted to the southern half of Sweden. READ MORE

  2. 2. Comparative Genomics in Birds

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Erik Axelsson; Uppsala universitet.; [2007]
    Keywords : Molecular genetics; Birds; molecular evolution; macrochromosomes; microchromosomes; mutation rate; substitution rate; base composition; positive selection; genetic drift; population size; Genetik;

    Abstract : To shed light on forces that shape the molecular evolution of bird genomes, and in turn avian adaptations, comparative analyses of avian DNA sequences are important. Moreover, contrasting findings in birds to those of other organisms will lend a clearer view on general aspects of molecular evolution. READ MORE

  3. 3. Reproduction and survival in the lesser spotted woodpecker. Effects of life history, mating system and age

    University dissertation from Ekologihuset, SE-223 62 Lund, Sweden

    Author : Ulf Wiktander; Lunds universitet.; Lund University.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Picoides minor; Dendrocopos minor; Picidae; polygyny; polyandry; parental care; breeding biology; altricial birds; birds; single-brooded birds; Animal ecology; Djurekologi;

    Abstract : Popular Abstract in Swedish Under 9 år (1989-1997) studerades individuellt märkta mindre hackspettar i ett undersökningsområde i södra Smålands ädellövskogar. De flesta studierna gjordes i 17 potentiella revir, vilka undersöktes årligen. READ MORE

  4. 4. Attacking predators and fleeing prey : detection, escape and targeting behaviour in birds

    University dissertation from Stockholm : Zoologiska institutionen

    Author : Ulrika Kaby; Stockholms universitet.; [2005]
    Keywords : zoology; ethology; birds; animal behaviour;

    Abstract : The aim of this thesis is to further our understanding of predator and prey behaviour and decision making in different attack situations. The thesis deals with escape strategies, predator detection ability and prey targeting behaviour. READ MORE

  5. 5. Birds as a Model for Comparative Genomic Studies

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Axel Künstner; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Birds; Selection; Gene expression; Sequence evolution; Next-generation sequencing; Comparative genomics; Molecular evolution; Genomics; Substitution Rates; Non-coding DNA; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Abstract : Comparative genomics provides a tool to investigate large biological datasets, i.e. genomic datasets. In my thesis I focused on inferring patterns of selection in coding and non-coding regions of avian genomes. READ MORE