Sökning: "establishment"

Visar resultat 6 - 10 av 1070 avhandlingar innehållade ordet establishment.

1. 6. Description of spatial and temporal distributions of epiphytic lichens

   Författare :Håkan Lättman; Per Milberg; Bengt Gunnar Jonsson; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; centroid; continuity; lichen; movement; range shift; direction; dispersal; ecological continuity; establishment; global change; global warming; habitat availability; håkan lättman; Biology; Biologi;

   Sammanfattning : Lichens are, in most cases, sensitive to anthropogenic factors such as air pollution, global warming, forestry and fragmentation. Two studies are included in this thesis. The first is an evaluation of the importance of old oak for the rare epiphytic lichen Cliostomum corrugatum (Ach.) Fr. LÄS MER

3. 7. Dispersal of bryophytes across landscapes

   Författare :Niklas Lönnell; Kristoffer Hylander; Bengt Gunnar Jonsson; Sebastian Sundberg; Johan Ehrlén; Risto Virtanen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; anemochory; bryophytes; colonization; connectivity; diaspores; dispersal kernel; establishment; spore dispersal; long-distance dispersal; mechanistic model; mosses; realized dispersal; spore release; Lagrangian stochastic model; wind dispersal; Plant Ecology; växtekologi;

   Sammanfattning : Dispersal, especially long-distance dispersal, is an important component in many disciplines within biology. Many species are passively dispersed by wind, not least spore-dispersed organisms.In this thesis I investigated the dispersal capacity of bryophytes by studying the colonization patterns from local scales (100 m) to landscape scales (20 km). LÄS MER

4. 8. Resistance and recolonization of bryophyte assemblages following disturbances : - detecting patterns and exploring mechanisms

   Författare :Martin Schmalholz; Kristoffer Hylander; Jari Kouki; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bryophytes; boreal forest; boulders; clear-cutting; disturbance; establishment; insect outbreaks; microtopography; recolonization; resistance; spatial heterogeneity; succession; wildfires; Biology; Biologi; Plant Ecology; växtekologi;

   Sammanfattning : Disturbances are ubiquitous features of most northern forest ecosystems. The subsequent response of plant assemblages on both short (resistance or not) and long term (recolonization or not) will depend on a number of factors operating at several spatial scales. LÄS MER

5. 9. Establishment Patterns of Model Diffusion Theory

   Författare :Ia Williamsson; Linda Askenäs; Anders Hjalmarsson Jordanius; Antonios Tsertsidis; Anders Ingwald; Ida Lindgren; Linnéuniversitetet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Informatik; Information Systems;

   Sammanfattning : Information technology is now part of almost every product and service, and the ever-increasing rate of technology and software development demands an appropriate software development process model. The model, whichdescribes the software development process, plays a crucial role for success in software projects. LÄS MER

7. 10. Orchestrating emerging digital ecosystems : investigating the establishment of an open data platform in the Swedish public transport industry

   Författare :Hosea A. Ofe; Johan Sandberg; Jonny Holmström; Henrik Wimelius; Anna Ståhlbröst; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Digital platform ecosystem; platform establishment; emerging ecosystems; orchestrating; control; coordination; generating network effects; creating value; capturing value; attracting users; data- och systemvetenskap; computer and systems sciences;

   Sammanfattning : Digital platforms are affecting most contemporary organizations as they mediate an increasing range and number of interactions in their ecosystems. While the discourse on digital platform ecosystems has gained in interest over the years, it often revolves around dominant global firms and how they utilize their control over governance and architecture configurations to exercise power in shaping trajectories. LÄS MER