Sökning: "leaf decomposition"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden leaf decomposition.

1. 1. Effects of plastic pollution on leaf litter decomposition in Swedish freshwater ecosystems : a field study addressing recently and globally emerging pollutants

   Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Martina Stangl; [2022]
   Nyckelord :Microplastics; Face masks; Ecosystem functioning; Leaf decomposition; Field study;

   Sammanfattning : Plastic pollution is recognized as an increasing environmental problem, but few studies have addressed impacts on ecosystem functions, and very few have been conducted in the field. This study investigated the effects of polypropylene particles derived from disposable face masks on in-situ leaf litter decomposition processes in freshwater ecosystems. LÄS MER

3. 2. Effects of native freshwater mussels and leaf debris on benthic macroinvertebrate abundance and diversity : A field experiment with Margaritifera margaritifera in Vasslabäcken, Örebro county

   Master-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

   Författare :Kai Sven Onken; [2021]
   Nyckelord :bivalve; functional role; habitat modification; decomposition; biodeposition;

   Sammanfattning : Organisms that are part of complex ecosystems interact not only with other organisms but also with their environment, affecting ecosystem functions. In aquatic ecosystems filter feeders affect ecosystem functioning by transferring energy and nutrients from the water to the benthos. LÄS MER

4. 3. Reindeer induced changes in vegetation composition and plant traits on a tundra-forest border

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Femke Pijcke; [2019]
   Nyckelord :physical geography; ecosystem analysis; plant functional traits; nutrient allocation; grazing; reindeer; Earth and Environmental Sciences;

   Sammanfattning : Reindeer (Rangifer tarandus) are the most common large herbivores in the arctic. With a habitat spreading over the entire circumpolar region, they can have a substantial effect on plant species composition and ecosystem processes and functions. LÄS MER

5. 4. The effect of an anti-depressant on responses to predation in an isopod

   Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

   Författare :Lisa Andrésen; [2019]
   Nyckelord :Anti-predation behaviour; Asellus aquaticus; fluoxetine; predation; waste-water;

   Sammanfattning : A lot of chemicals and pharmaceutical substances used by humans, are released into the waste-water and end up in lakes and ponds. Further, because pharmaceutical substances are increasing worldwide, the problem increases. A very common human anti-depressant is fluoxetine which is found in lakes, ponds and even in the bodies of aquatic organisms. LÄS MER

7. 5. Can the introduction of the topographic indices in LPJ-GUESS improve the spatial representation of environmental variables?

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Alejandra Narváez Vallejo; [2016]
   Nyckelord :smooth topography; drainage area; slope; topographic wetness index; LPJ-GUESS; GIS; physical geography and ecosystem analysis; geography; geographic information systems; leaf area index; spatial patterns; MODIS LAI.; Earth and Environmental Sciences;

   Sammanfattning : Ecosystem modelling is an always evolving science trying to catch the complexity of the nature and its principles to model environmental responses in a realistic way. Over and over, models try to introduce more variables and interactions to achieve better representations of phenomena of interest like the responses of the ecosystem to a fast changing world (climate change, land use change). LÄS MER