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623 Uppsatser om Habitat mapping - Sida 34 av 42

Metod för kartläggning av lövråvara i Södra Skogs verksamhetsområde

Södra Skog chose in 2011 to convert the saw mill in Traryd to a gradually refined sawmill of hardwood. In 2009, they had also acquired the hardwood sawmill in Djursdala. This was strategically important for Södra's business since the demand for hardwood products has increased. The standing volume of deciduous trees in Sweden is today approximately 524 million m3sk and it has increased rapidly in recent years. However, the deciduous forests are to a large extent located in areas that are set aside for nature conservation and is thus not available to the industry.The goal of this work is to create a simple and reliable method for mapping of deciduous wood volumes in areas where Södra Skog is operating (Götaland excluding Gotland).The material that is used is raster databases with estimated forest attributes (kNN-Sweden), data from National Forest Inventory (NFI) and forest management plans.

Produktkalkylering vid bearbetande småföretag

Background - Swedish trade and industry primarily involves small corporations, including small manufacturing corporations. Currently, most costing models that are used are based on studies accomplished at large corporations. This conveys to the fact that product costing that occurs at small manufacturing corporations is based on all complexities that large corporations bring, which rarely match with small corporations. It occurs that small manufacturing corporations unconsciously rely on incorrect information that has been calculated based on great corporations? product costing.

Threats and opportunities for the survival of the Yangtze finless porpoise

The Yangtze finless porpoise (Neophocaena phocaenoides asiaorientalis), is a small freshwater cetacean which has recently fallen dramatically in number. It is an endemic species for the Yangtze River and unless drastic action is taken, it risks the same fate as the now functionally extinct Yangtze river dolphin (Lipotes vexillifer). Threats to the porpoise are diverse but they have in common that they are caused by man. Development of the river has been made to supply a growing human population with food, hydropower, and to reduce the risk of flooding. These changes have resulted in a degraded habitat for the porpoise.

Challenges and Opportunities in Swedish Apiculture

Bees are of importance for the global food security. In Europe 84% and in the World 35% of all the agricultural crops are dependent of animal pollination (Winfree et al., 2011:1). In agricultural production there is a huge lack of pollinators (Azien & Harden, 2009). A problem that is widely spread. In Sweden the problem becomes clear when looking at the statistics of the number of bee colonies during the last 20 years, where it has been a decline with 63 % (Statistiska Centralbyrån & Jordbruksverket, 2011).

Sånger från graven: En kartläggning av krafterna som hämnar den digitala revolutionen inom svensk musikdistribution

Songs from the Crypt: Mapping the Forces that Hinder the Digital Revolution of Music Distribution This paper seeks an explanation to the low market share growth of the commercial digital music distribution in Sweden. The analysis identifies a spectrum of obstacles that hinder the digital distribution technology from becoming the main form of music distribution in Sweden. These obstacles make the digital music distribution less favourable in comparison with physical distribution from the consumer?s point of view. The authors suggest that in order for the digital distribution of music to become competitive the digital product would either have to be developed further to offer more customer value or the so called a là carte retail model would have to be replaced by a subscription-based distribution model.

Naturreservat : en bra naturvårdsåtgärd för att bevara enskilda arter och/eller bevara den biologiska mångfalden?

The examination of the adequate nature conservation methods in a natural reserve, to conserve a specific species and / or increase biological diversity is the subject of this study. This work is based on four species, that can be found during the Spring season, liverleaf, wood anemone, brimstone and woodpecker. The incidence and availability is studied and closely observed for these species in twenty forests, i.e. ten forests which are nature reserves and ten forests with the similar characteristics as the nature reserves habitat, but are not nature reserves in Gnesta mucipality, Södermanland. Measurements of the tree crown and the diameter of the tree trunks where noted to study how these factors could affect the outcome of the abundance and incidence of the four species.

Den smältande polarisens effekt på de endemiska valarna i Arktis

Klimatförändringarna har en stor påverkan på de arktiska valarna grönlandsval (Balaena mysticetus), vitval (Delphinapterus leucas) och narval (Monodon monoceros), mer än vad som tros vid en första tanke. I dagsläget får dessa valar utstå stora utmaningar som troligenkan komma att förvärras i framtiden om inte isens smältande kan bromsas. En del av utmaningarna innebär att valarna måste genomgå stora förändringar för att överleva, vilket innebär att deras förmåga att anpassa sig spelar en stor roll. Människans jakt på valen har alltid varit ett stort problem för de arktiska valarna, tack vare restriktioner om fångstkvoter och vem som får jaga val ser framtiden ljusare ut i alla fall för grönlandsvalen och vitvalen. För narvalen ser det dock inte lika ljust ut eftersom det är en art som är känsligare än många andra arktiska arter för effekterna som den globala uppvärmningen har på den arktiska miljön.I dagsläget har en del effekter på valarna blivit synliga såsom ändrade migrationsvanor och ökad predation.

Rumslig utbredning av tuberkulos : Stockholms kommun år 2002-2011

This bachelor thesis is written as a part of the geography program at Stockholm University, Sweden, and the study was conducted from April to June 2012.Tuberculosis (TB) is an airborne disease and one of the most widespread infectious diseases in the world with more than nine million new cases each year (SMI 2012, digital source). The disease is a major source of death and suffering in many places and the number of deaths remains high despite the availability of highly efficacious treatment. To control and prevent further spread of TB, the mapping of the disease spatial distribution is of essential importance.In this study, maps were produced that shows the spatial distribution of TB between the years 2002 to 2011 in the municipality of Stockholm. These maps allow an analysis of the spatial distribution at a local scale over time.The aim of this paper is to study how the spatial distribution of TB has looked like in the municipality of Stockholm the last 10 years and to analyze why the spatial distribution of the disease looked like it did. This study is based on the hypothesis ?drift?.

Jaktens betydelse för Södermanlands landskap : Hur viltvård kan påverka variationen av lövträd och buskar

The fragmentation and reduction of deciduous forests in Sweden is threatening many species. Particularity worrying is the loss of broad-leaf trees, since a diversity of species is often associated to them. Today many deciduous trees are situated along the border between forested and open areas, and these small fragments can be important for biodiversity.The aim of this study is to analyze if wildlife management can affect the variation of deciduous trees and bushes in the landscape. In brochures and literature Svenska Jägareförbundet (the Swedish Association for Hunting and Wildlife Management) recommend hunters and landowners to promote deciduous trees ? often broad-leaf trees ? as wildlife management measures, while the Swedish forestry laws can be sensed as unclear regarding the treatment of these trees.Five properties in Södermanland, Sweden, were chosen as study areas and inventoried in respect of trees and bushes in September 2013.

Modellering av tånglakens, Zoarces viviparus, habitat i Östersjön

Att förstå sambandet mellan miljövariabler och fiskarters förekomst eller abundans är en väsentlig del i att bedriva ekosystembaserat bevarandearbete och ekologiskt hållbart fiske. Tånglaken, Zoarces viviparus, var klassad som nära hotad på rödlis-tan 2010 och på HELCOM Red List of the Baltic Sea 2013. Tånglaken är utbredd över hela Östersjön och används som en bioindikator för föroreningar i havet Att förstå vad som styr tånglakens utbredning är alltså viktigt både ut bevarande syn-punkt och ur miljöövervakningssynpunkt Meningarna går isär angående dennes ha-bitatpreferenser. Med hjälp av data i form av uppmätt djup och videosekvenser från provfisken inom projektet BONUS INSPIRE och data i form av rasterkartor för andra miljövariabler har generalized additive modelling gjorts för tånglakens före-komst i Östersjön. Tre slutgiltiga modeller valdes ut baserat på förklaringsgrad.

"Nu är det riktigt, riktigt, riktigt, riktigt besvärligt" : En kvalitativ analys av TT:s rapportering om barn och unga som flyr ensamma till Sverige.

Today many separated children and youth up to 18 years - children in the sense of the UN Convention on the Rights of the Child - flee from war and armed conflicts around the world. Many of them come to Sweden for protection and to apply for asylum.The aim of this study is to examine how the national Swedish news agency Tidningarnas Telegrambyrå - TT - constructs the image of separated children and youth. The main research questions have been: How does TT construct the image of the separated refugee children? The more detailed questions put to examine this main question have been: what are the issues being focused in the reporting and what discourses, voices and sources are let into the journalistic material?The theoretical perspective should be considered as social constructionistic where the basic idea is that the image of the separated child also constructs the way society looks upon them, their rights and their needs, affecting how these children will be welcomed and treated when thay arrive in our society. The empirical study is a qualitative analysis of text, produced in the span 2007- April 20th 2010.

Sopsortering mellan fartyg och Kalmar Hamn : En fallstudie i hur fartyg sorterar sitt avfall i Kalmar Hamn

Bibaggen Apalus bimaculatus är en rödlistad skalbagge som förekommer i öppna sandiga miljöer och är starkt knuten till sin värdart vårsidenbi Colletes cunicularius vilken den boparasiterar på. Inventeringar av sekundära habitat i form av sand- och grustäkter har utförts i Västra Götalands län under tidig vår 2009 och 2010. Data från dessa inventeringar har i denna studie används i samband med undersökning av omgivande markslag runt dellokalerna/täkterna för att ta reda på om omgivande markslag påverkar förekomst av bibagge vid dellokaler/täkter. Inom sand- och grustäkterna registrerade inventerarna enskilda dellokaler där fynd av bibagge eller vårsidenbi gjordes. Om ingen av arterna observerades angavs en koordinat där en dellokal ansågs vara mest lämplig för en av arterna eller för båda arterna.

Omgivande markslags påverkan på förekomst av bibagge Apalus bimaculatus i sand- och grustäkter i Västra Götalands län

Bibaggen Apalus bimaculatus är en rödlistad skalbagge som förekommer i öppna sandiga miljöer och är starkt knuten till sin värdart vårsidenbi Colletes cunicularius vilken den boparasiterar på. Inventeringar av sekundära habitat i form av sand- och grustäkter har utförts i Västra Götalands län under tidig vår 2009 och 2010. Data från dessa inventeringar har i denna studie används i samband med undersökning av omgivande markslag runt dellokalerna/täkterna för att ta reda på om omgivande markslag påverkar förekomst av bibagge vid dellokaler/täkter. Inom sand- och grustäkterna registrerade inventerarna enskilda dellokaler där fynd av bibagge eller vårsidenbi gjordes. Om ingen av arterna observerades angavs en koordinat där en dellokal ansågs vara mest lämplig för en av arterna eller för båda arterna.

Rimbo våtmark : en förstudie på förväntad kväveavskiljning och lämplig växtlighet

This study was made as a part of a feasibility study on a polishing wetland at Rimbo wastewater plant (wwp) in Norrtälje municipality. The wwp had to decrease the nitrogen discharge to reach the limit 15 mg tot-N/l. The nitrogen in the outlet was mainly in the form of nitrate, hence the wetland mainly ought to support denitrification. The proposed area for the wetland was situated right next to the wwp and was already in the municipalitys posession. One aim of this study was to examine what spieces of plants needed to achieve highest possible denitrification.

Evaluation of an ectomycorrhizal macrofungi as an indicator species of high conservation value pine-heath forests in northern Sweden

Since the 1950s, the development of modern rotation forestry in boreal Fennoscandia has resulted in a severe reduction of older forests, and a high degree of fragmentation among the small patches that remains of old forest. In Sweden, when performing conservation value assessments in order to identify and preserve the remaining forest habitats, the government authorities use to a significant extent a set of indicator species that indicate habitats of high biological conservation value. One species considered to indicate high conservation values in pine-heath forests is the red-listed ectomycorrhizal (EM) macrofungi Sarcodon scabrosus (Fr.) P. Karst. In the present study, the validity of using S.

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