Sökning: "seasonal reproduction"

Visar resultat 1 - 5 av 22 avhandlingar innehållade orden seasonal reproduction.

1. 1. Plant phenology in seasonal environments

   Författare :Elsa Fogelström; Johan Ehrlén; Johan P. Dahlgren; Arthur Weis; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Autumn phenology; Cardamine pratensis; evolutionary ecology; heritability; herbivore preference; fitness components; flowering time; growing season length; life-history; Lathyrus vernus; natural selection; population differentiation; phenology; spring phenology; Plant Ecology; växtekologi;

   Sammanfattning : Phenology, or the seasonal timing life-history events such as emergence, reproduction and senescence will determine the outcome of interactions between plants and both abiotic and biotic aspects of the environment. Such timing is therefore of utmost importance for plants in seasonal environments. LÄS MER

3. 2. The genetic basis for adaptation in natural populations

   Författare :Sangeet Lamichhaney; Leif Andersson; Carl-Johan Rubin; Alvaro Martinez Barrio; Henrik Kaessmann; Uppsala universitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Adaptive evolution; Atlantic herring; ecological adaptation; seasonal reproduction; TSHR; Darwin’s finches; natural selection; beak; ALX1; HMGA2; ruff; lek; inversion; HSD17B2; MC1R;

   Sammanfattning : Many previous studies in evolutionary genetics have been based on few model organisms that can be reared at ease in the laboratory. In contrast, genetic studies of non-model, natural populations are desirable as they provide a wider range of adaptive phenotypes throughout evolutionary timescales and allow a more realistic understanding of how natural selection drives adaptive evolution. LÄS MER

4. 3. Exploring genetic diversity in natural and domestic populations through next generation sequencing

   Författare :Nima Rafati; Leif Andersson; Carl-Johan Rubin; Alvaro Martinez Bario; Craig Primmer; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecological adaptation; seasonal reproduction; Atlantic herring; domestication; speciation; rabbit; skeletal atavism; Shetland ponies; NGS; SMRT sequencing; genome; transcriptome; assembly; structural variation; genetic diversity; HCE; TSHR; SHOX; CRLF2;

   Sammanfattning : Studying genetic diversity in natural and domestic populations is of major importance in evolutionary biology. The recent advent of next generation sequencing (NGS) technologies has dramatically changed the scope of these studies, enabling researchers to study genetic diversity in a whole-genome context. LÄS MER

5. 4. Phytobenthic communities in the Baltic Sea - seasonal patterns in settlement and succession

   Författare :Susanne Qvarfordt; Hans Kautsky; Lena Kautsky; Hendrik Schubert; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Succession; settlement; recruitment; phytobenthos; macroalgae; invertebrates; Baltic Sea; community; Biology; Biologi;

   Sammanfattning : Seasonal changes in reproduction, recruitment, occurrence and growth of marine plant and animal species is a common phenomenon world-wide. This thesis investigates whether such seasonal changes could determine the succession in subtidal phytobenthic communities on free space in the Baltic Sea. LÄS MER

7. 5. The rhythm of rock art animals : Picturing reindeer, elk and bear around the seasonal cycle in Stone Age Alta

   Författare :Helena Günther; Fredrik Fahlander; Ingrid Fuglestvedt; Kristin Armstrong Oma; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Rock art; Stone Age hunters; the Arctic; Alta; Northern Fennoscandia; reindeer; elk; bear; traditional contextualised knowledge; human animal relations; human environmental relations; zoo semiotics; ecological community; ethology and animal imagery; arkeologi med inriktning mot allmän arkeologi; Archaeology with General Specialisation;

   Sammanfattning : The Stone Age rock art of Fennoscandia is dominated by pictures of animals. Yet it is its role in the social and cognitive processes within human society that has been the major focus for research. In the thesis, rock art is explored in the lives of people as being part of a larger ecological community. LÄS MER