Search for dissertations about: "Biodiversity assessment"

Showing result 16 - 20 of 66 swedish dissertations containing the words Biodiversity assessment.

2. 16. Towards Sustainable Bioenergy - Governance, Resource potentials and Trade-offs

   Author : Oskar Englund; Evelyne Thiffault; Chalmers tekniska högskola; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; sustainability standards; trade-offs; Bioenergy; biodiversity; governance; biomass potentials; certification;

   Abstract : The global energy system needs to be transformed from fossil dependent to renewable, to cope with the challenges of resource scarcity and climate change. Bioenergy can play an important role in this transformation, but land is scarce, and uncontrolled bioenergy expansion could have unacceptable consequences. READ MORE

4. 17. Brazilian land use policies and the development of ecosystem services

   Author : Flavio L. M. Freitas; Ulla Mörtberg; Gerd Sparovek; Martin Persson; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brazil; Land use policy; Forest protection; Ecosystem services; Biodiversity; Offsetting of legal reserves; Land and Water Resources Engineering; Mark- och vattenteknik;

   Abstract : Concerns related to global environmental changes due to land use changes have been driving international communities towards more sustainable land use systems. Brazil is a country of global strategic importance in this matter considering that it is the nation with the largest extension of preserved tropical native vegetation, recognised for its ecosystem services and high and unique biodiversity. READ MORE

5. 18. Effects of contaminant mixtures on marine zooplankton diversity and function

   Author : Christina Jönander; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; zooplankton; copepods; ciliates; dinoflagellates; mixture toxicity; chemical mixtures; marine contaminants; biodiversity; reproduction; ULSFO; closed-loop scrubbers; exhaust gas cleaning systems;

   Abstract : Chemicals have important roles in our society and can be used as ingredients in personal care products, pesticides, pharmaceuticals, as well as be components of fuels used in cars or ships. More than 350 000 chemicals and mixtures have been registered for use, which only covers a part of all the chemicals that we may come into contact with. READ MORE

6. 19. Benthic diatoms in the Gulf of Bothnia : Community analysis and diversity

   Author : Svenja Busse; Michael Sullivan; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Baltic Sea; Biodiversity; Biomass; Community ecology; Diatoms; Multivariate analysis; Navicula; Phytobenthos; Salinity gradient; Scale; Size; Water movement; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; Ecological Botany; Ekologisk botanik;

   Abstract : Benthic diatoms are valuable tools for biological monitoring and paleo-ecological reconstruction of past environmental conditions. This thesis aims at describing size-related properties of benthic diatoms and suggests that data assessment for community analysis can be improved by considering the importance of scale. READ MORE

7. 20. Coarse detritus in oligotrophic lake littoral zones : utilization by intervertebrates and contribution to carbon flow

   Author : Irene Bohman; Jan Herrman; Lars Tranvik; Jan Stenson; Mark O. Gessner; Högskolan i Kalmar; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Shredders; Biodiversity; Ecosystem; Limnology; Nattsländor; Sjöar; Kol; Biologisk nedbrytning; Freshwater ecology; Limnisk ekologi; Akvatisk ekologi; Aquatic Ecology;

   Abstract : Syftet med denna avhandling är att öka förståelsen av hur grovt organiskt material, sk grovdetritus, tex löv och makrofytrester, bryts ner i sjöars strandzoner. Motivet bakom intresset för detta är att små näringsfattiga sjöar i skogsrika områden ofta är beroende av tillförsel av energi utifrån och att nedbrytningen av grovdetritus är relativt lite undersökt i sjöar. READ MORE