Sökning: "distribution patterns"

Visar resultat 1 - 5 av 692 avhandlingar innehållade orden distribution patterns.

1. 1. Spikemoss patterns : Systematics and historical biogeography of Selaginellaceae

   Författare :Stina Weststrand; Petra Korall; Michael J. Donoghue; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; classification; historical biogeography; lycophytes; nomenclature; phylogeny; Selaginella; Selaginellaceae; systematics; fylogeni; historisk biogeografi; klassifikation; lummerväxter; nomenklatur; Selaginella; Selaginellaceae; systematik; Biologi med inriktning mot systematik; Biology with specialization in Systematics;

   Sammanfattning : Selaginellaceae, spikemosses, is a heterosporous plant family belonging to the lycophytes. With an estimated age of some 350 million years, the family is historically important as one of the oldest known groups of vascular plants. Selaginellaceae is herbaceous with a worldwide distribution. However, the majority of the ca. LÄS MER

3. 2. The role of microclimate for the performance and distribution of forest plants

   Författare :C. Johan Dahlberg; Kristoffer Hylander; Johan Ehrlén; Jason D. Fridley; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; performance; microclimate; spatial scales; continental; landscape; distribution patterns; distribution limits; phenology; vegetative development; reproductive development; vital rates; population growth rate; vascular plants; bryophytes; distribution modelling; Plant Ecology; växtekologi;

   Sammanfattning : Microclimatic gradients may have large influence on individual vital rates and population growth rates of species, and limit their distributions. Therefore, I focused on the influence of microclimate on individual performance and distribution of species. LÄS MER

4. 3. Distribution patterns of fleshy-fruited woody plants at local and regional scales

   Författare :Matilda Arnell; Ove Eriksson; Johan Ehrlén; Sara A.O. Cousins; Angela Moles; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fleshy fruits; woody plants; dispersal; distribution patterns; range filling; dispersal limitation; historical land use; spatial associations; point-pattern analysis; recruitment; reproduction; pollination; fruit set; fruit-removal; Daphne mezereum; Plant Ecology; växtekologi;

   Sammanfattning : Fleshy-fruited woody plants share a long history with humans, providing us with food and wood material. Because of this relation, we have actively moved some of these plants across landscapes and continents. LÄS MER

5. 4. Patterns of recollection : the documentary meets digital media

   Författare :Åke Walldius; Stephen Mamber; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Documentary films; Dokumentärfilm; Digitalteknik; Digitala medier och film; Cinema Studies; filmvetenskap;

   Sammanfattning : The aim of this study is to propose a conceptual framework for the analysis of historical programming in digital media. Radical breakthroughs in the technologies for registration and dissemination of moving images have created a need for common vocabularies that can be shared by media practitioners, researchers from different fields of inquiry, and end-users of documentary accounts. LÄS MER

7. 5. Meal patterns and obesity - does snacking play a role?

   Författare :Helene Berteus Forslund; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; meal patterns; meal frequency; snacking; snacks; temporal distribution; obesity; weight loss; obesity treatment; adherence; life style changes;

   Sammanfattning : Aims: To describe meal patterns, especially snacking, in obese subjects compared to a reference population and to evaluate the importance of meal frequency in obesity treatment. Methods: Two cross sectional studies; 1. Women from the Swedish Obese Subjects (SOS) registry study (n=83) and SOS reference study (n=94); 2. LÄS MER