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Visar resultat 1 - 5 av 449 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Effects of size-dependent predation and competition on population and community dynamics

   Författare :Karin Nilsson; Lennart Persson; Volker Rudolf; Umeå universitet; []
   Nyckelord :size-structure; cannibalism; resource competition; predation; emergent facilitation; population regulation; population dynamics; overcompensation; density-dependence; cycles; zooekologi; Animal Ecology;

   Sammanfattning : Most animals grow substantially during their lifetime and change in competitive ability, predatory capacity and their susceptibility to predation as they grow. This thesis addresses the implications of this on regulation and dynamics within populations as well as between population interactions. LÄS MER

3. 2. Population Genetics of Human Genomic Elements

   Författare :Thijessen Naidoo; Mattias Jakobsson; Guillaume Achaz; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; population genetics; human genome; functional elements; natural selection; pseudogenes; loss-of-function; gene regulation; Y chromosome; Biology with Specialisation in Human Evolution and Genetics; Biologi med inriktning mot människans evolution och genetik;

   Sammanfattning : The genomes of living organisms are composed of a multitude of functional units, which interact with each other and their environment in a highly regulated fashion, to facilitate the expression of an enduring (and evolving) phenotype. Several approaches have emerged in the effort to identify these functional units and explore their activities. LÄS MER

4. 3. Effects of Great Cormorant Predation on Fish Populations and Fishery

   Författare :Henri Engström; Sture Hansson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Great Cormorant; Phalacrocorax carbo sinensis; predation; population regulation; diet; diet preferences; eel; behavioural responses; bird-fishery conflicts; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; populationsbiologi; Population Biology;

   Sammanfattning : The strong increase in number of Great cormorants Phalacrocorax carbo in Sweden in recent years has led to conflicts - particularly with fishery. This thesis focuses on the possible effects of cormorant predation on fish populations. LÄS MER

5. 4. Emotion regulation and chronic illness : The roles of acceptance, mindfulness and compassion in physical and mental health

   Författare :Ines Trindade; Cláudia Rute Carlos Ferreira; José Augusto da Veiga Pinto Gouveia; Portugal Coimbra Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; chronic illness; behavioural medicine; inflammatory bowel disease; cancer; chronic illness-specific measures; mental health; physical health; emotion regulation; acceptance and commitment therapy; mindfulness; compassion-focused therapy; MIND programme; doença crónica; medicina comportamental; doença inflamatória intestinal; cancro; medidas específicas para a doença crónica; saúde mental; saúde física; regulação emocional; terapia de aceitação e compromisso; mindfulness; terapia focada na compaixão; programa MIND;

   Sammanfattning : Introduction: Chronic illness is an increasingly predominant problem among the world population which vastly impacts on physical and mental health, quality of life and social functioning. Although chronic illnesses merit a long-term and complex response which would be ideally delivered by a multidisciplinary team of health professionals, most of the current healthcare for chronic illnesses still focus on acute episodes of illness. LÄS MER

7. 5. Population regulation in two co-occurring crayfish species

   Författare :Björn Söderbäck; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER