Sökning: "niche level"
Visar resultat 1 - 5 av 63 avhandlingar innehållade orden niche level.
1. Soil phosphorus – a multidimensional resource that plays an important role for grassland plant species richness
Sammanfattning : The semi-natural grassland habitats contain an important part of the plant diversity in Europe. Changes in farming practices have lead to drastic decreases in plant species richness. The aim of the present thesis is to contribute to the knowledge about mechanisms governing the plant species richness in grasslands with emphasis on soil nutrients. LÄS MER
2. Shaping sustainable food systems : Local participation in addressing global challenges
Sammanfattning : The current unsustainable trajectory of food systems puts the social and ecological processes and functions on which human flourishing depends at risk. This last decade has seen, on one hand, continued insistence on transformative action and on the other, uncertainty and instability with respect to traditional, established institutions, such as the state. LÄS MER
3. The role of regeneration in plant niche differentiation and habitat specialization
Sammanfattning : To predict the effects of environmental change and nature management on the distribution of plant species, it is crucial to understand the mechanisms of plant niche differentiation and habitat specialization. The importance to habitat specialization of particular plant traits and requirement of the regenerative phase of the plants life has received scanty interest. LÄS MER
4. THE HYPOXIC HEMATOPOIETIC STEM CELL NICHE Consequences of Hypoxia-induced Transcription on Stem Cell Fate
Sammanfattning : Hematopoiesis is the process of blood formation that originates with the hematopoietic stem cell (HSC), a cell type that is responsible for the life-long supply of mature blood cells. HSCs are defined by their ability to self-renew as well as giving rise to differentiated cells of all blood lineages. LÄS MER
5. New Tides in Shipping : Studying incumbent firms in maritime energy transitions
Sammanfattning : Shipping is a cornerstone of global transportation responsible for moving large volumes of traded goods. At the same time, negative environmental impacts of shipping operations have attracted growing concerns. LÄS MER