Semi-natural grasslands are threatened biotopes in the landscape and without conservation measures high values of nature will be lost. Meanwhile, the biological values associated with cultural values of the traditional agricultural landscape in Sweden. Studies of land use history may help to understand how today biological diversity has evolved and how it can be preserved. Färsna farm in Norrtälje has left some of the old heritage of biological diversity in the form of nature - forest and grassland, which hosts an unusual herb-rich flora. Through the study of historic maps and från1673/1767/1801/1901 1952 and orthophoto of the area has a picture of how land use has changed over time emerged.

I studien undersöks vilket innehåll mellan- och högstadielärare uppger att eleverna ska bearbeta under årskurs 4-5. Deras utsagor ger ökad kunskap om hur samsynen ser ut på ämnesinnehållet i biologi i rektorsområdet vilket sedan kopplas till om det önskas eller finns ett stadieövergripande samarbete i den här frågan. Till studien har ett kvalitativt tillvägagångssätt används och intervjuer har genomförts för att ge underlag till studien. I resultatet framgår det att områden kring kroppen, artkunskap och miljö ses som centralt innehåll i årskurs 4-5, men stor vikt läggs också på upplevelser och lustfyllt lärande. Lärarna från de olika stadierna talar dock inte med en gemensam röst när det kommer till vilket djup innehållet ska ha.

The first of May 2007, a decision from the Swedish Board of Fisheries about a Swedish prohibition of eel fishery got legal force. This prohibition is one of the most challenged decisions that the Swedish Board of Fisheries has taken. In the town Karlskrona in the southeastern part of Sweden the prohibition has got a lot of attention in local media. Early in the debate, it was clear that the actors active in the archipelago of Karlskrona were against the prohibition. The aim with the master thesis is to investigate different actors' opinions and view of the prohibition of eel fishery, today's management of the resource and how the actors' think that the communication between the actors involved in the management of eel and eel fishery works and what need to be changed to be able to develop a sustainable management of the eel in the future.

Though still well used in Swedish schools, textbooks are no longer under any governmental control or inspection. It is now responsibilities of the teacher, thus, knowledge is considered crucial. Therefore, the aim of this study was firstly to investigate if and how four biology/natural science textbooks, produced 1957-2008 for primary school years (3) 4-6, expressed any sex, gender and/or sexuality norms. Moreover, due to thoughts of queer theoretic Judith Butler, the study also investigated if and how these three norms interacted. By examining what the textbooks mediated, the purpose was finally to find out if and how the norms differed or not.

AbstractThe beginning of the 20th century gave birth to quantum physics. Within years it revolutionized material science and converted the theoretical foundations of modern chemistry, and to some extent even biology, to physics? new branch, molecular physics. Merger of relativistic and quantum physics soon led to the development of quantum field theory and a deeper understanding of the elementary constituents of matter. Part of this development found its way into high school textbooks as early as in the 1950s.

Allanblackia is a tree genus native to humid forests in West, Central and East Africa. Its fruits contain large seeds from which edible high-quality fat can be extracted. In order to create a sustainable supply chain of Allanblackia seeds, a domestication program has been initiated with the purpose to enable smallholder farmers to grow the tree as an agroforestry component and cash crop. More knowledge is required to understand the tree?s biology and possible symbioses involving soil microorganisms with plant growth enhancing poten-tial.

 During our education time, we have heard on several occasions how the high changing rate in the society also influences the education area. That changing process mainly originates from the transform that a school underwent, i.e. the decentralization meaning a delegation of responsibility from a national to local government and the particular school. The main idea that started a changing process goes under the slogan ?a school for everyone?.

The use of forage maize has increased over the last years. The aim of this litterateur review was to summarize a part of the research that has been conducted on forage maize for growing cattle, including cultivation and conservation of the maize. The forage maize is planted in April or the beginning of May when the temperature in the soil is between 6 and 10°C. Maize needs high temperatures and much water. Maize is harvested in the autumn when the dry matter (DM) is more then 30% or the plants have been exposed to the first frost in the autumn.

Human presence has always influenced the surrounding areas, the forest as well. Structure and species composition have changed during human land use. Knowledge regarding these changes should be of great interest for conservation and forestry. We have analyzed human impact on the tree species composition on five study sites during 2000 years in Ångermanland, Sweden. More specifically the change in tree species composition in percentage amongst alder, birch, spruce and pine over time.

Burnt Spine-cap Sárcodon fuligíneovioláceus are one the most endangered mycorrhizal fungal species in Europe. They have their main distribution in Sweden. It form mycorrhiza with pine and dependent on limestone, which makes it connected to a rare environment. It has therefore been important to study the ecology of it further and to recognise the requirement it has on the environment more accurate and what it need to establish in a new area. In this study, 31 of 34 known sites in Sweden was visited and studied in field and their history analysed through aerial photographs.

AbstractThis study deals with NTA in preschool and the purpose of the study is to find out how the NTA project works out in practice. In the empirical study I have used questionnaires as a research method (Trost2001). Questionnaires have been sent to preschool teachers in the whole of Sweden to get as good a selection as possible. The responses received have been processed and analyzed. The results are reported below.The majority of the teachers thought it worked well to work with the NTA.

With rising energy prices and the threat of climate change, energy costs and energy savings havebecome a central and important part in building. Therefore it is interesting to explore different andnon-conventional methods of energy conservation. Building Earth sheltered houses is such a method.Earth provides good insulation and provides the ability to both reduce the total heating needs and toreduce the maximum power demand. The aim of this study was to construct a house in Malmö and seeif Earth sheltered houses can be a cost effective alternative for the construction of sustainable andenergy-efficient houses.Previous studies have shown that Earth sheltered houses have reduced their power requirement with upto 25% and their use of energy with 10%. Numerical calculations in Comsol Multiphysic 4.2, wasperformed on a house with different degrees of earth covering.

The global biodiversity loss is mainly due to human activities such as an intensification of forestry. Boreal forest ecosystems in Fennoscandia are characterized by disturbances such as forest fires, storms and floods. However, industrial forestry practices suppress forest fires and change the landscape, leading to a loss of habitats and associated species. Particularly lichen species with slow adaptation abilities and a strong substrate specificity face an extinction debt in boreal forests since their substrates are long-lived but no longer created. In this study the species-substrate relationship of two red-listed forest-fire dependent lichen species Carbon-icola anthracophila and C.

Kunskapen kring svensk torvmarksbeskogning är undermålig. En kunskapslucka som till stor del beror på att torvmark tidigare bedömts som ointressant mark i samband med skogsproduktion. Detta beror mycket på det svenska regelverkets restriktioner mot markavvattning och gödsling samt miljöaspekterna som berörs och den aktivare skötsel som krävs. Det ökade behovet av skogsråvara gör att skogsbruket söker nya marker där torvmarken har potential att etableras för skogsproduktion.Studien är en kunskapssammanställning som lyfter fram kunskap kring skogsbruk på svensk torvmark med fokus på föryngringsprocessen. Finland använder torvmarker i skogsbruket på ett sofistikerat sätt.

Predation is one of many factors that form the structure of the macroinvertebrate community in lakes, wetlands and watercourses. Earlier studies lack an examination concerning how fish- and waterfowl predation affect macroinvertebrates during shorter periods in the spring. I performed an exclosure study in the shallow eutrophic Lake Tåkern which is located in the western part of Östergötland County, Sweden. The experiment was performed during a three week period (1-21 April 2012) when the water temperature was low and the density of migrating diving ducks was high. The experimental cages used included three out of four different treatments; general predation (open cages), bird exclusion (net with mesh size 90*45mm) and no predation (net with mesh size 1*1mm).