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751 Uppsatser om Threatened species - Sida 24 av 51
Freshwater pearl mussel as indicators of Swedish streams - a comparison between freshwater pearl mussel and biological quality elements
The freshwater pearl mussel (Margaritifera margaritifera) is a large freshwater mussel. Because of its sensitivity to human impact, such as eutrophication, acidification and alterations of hydromorphology, the species is considered as a robust indicator of stream water quality and biodiversity. Moreover, due to the species complex life cycle, including a larval stage on the gills of salmon and trout, and sensitivity of early life stages, regeneration is often used as an indicator. The freshwater pearl mussel is also used in the expert judgement of status classification of benthic invertebrates according to the European Water Framework Directive.
The purpose of this study was to gain a deeper understanding of the freshwater pearl mussel as an indicator for Swedish streams. It was made with two types of
association analyses.
Use of dogs as odour detectors : a review of the scientific literture
A lot of various substances can be detected by dogs, as oestrous in cows, endangered species or non-biological substances like accelerants, narcotics, explosives, mines and pollutions and biological substances like identity (suspects), cancer (breast, lung, colorectal and bladder cancer), human remains (cadaver), bacteria and mould in buildings. The dogs are trained using non-scientific methods and not much research in detection training exists. This is a review of different types of dog detection, with focus on new research..
Ajuourhållning av ungskogsdata med hjälp av digitala flygbilder :
The purpose of this study is to investigate whether it is possible for SCA to update their stand register with use of digital aerial photos photographed with a Zeiss/Intergraph DMC. ?Updating? in this study implies the delineation of stands and estimating stand variables such as average stand height, volume density, stand volume, and tree species composition in order to identify stands which can be of current interest for thinning.
The study also includes how the aerial photo material and experience of the interpreter can influence the quality of the interpreted variables.
The aerial photo interpretations were made by both experienced and inexperienced interpreters.
Rådjur (Capreolus Capreolus) på Gotland : populationsutveckling och spridningsmönster
Gotland is an island in the Baltic Sea where man has introduced roe deer. The last successful reintroduction was in the 1980s and is the base of the viable roe deer population of today.The aim of this study was to estimate the roe deer population density in 2012 and the species population dynamic since the time when studies on the population started. The result indicates a population size of 850 roe deer in 2012. There was no significant population dynamic, which may be due to insufficient data. The population occurs basically over the whole island but have not yet been established in all suitable areas.
Rättssäkerhet inom skatteprocessen
In todays society the legal rights of the individual are a highly debated subject. Among other things there have been a debate going on in Dagens industri where the participants have discussed the National Tax Board, courts of law and law and order. The legal rights of the individual have been described as threatened and uncertain due to deficiencies in the tax assessment.There are difficulties defining the concept of law and order due to the fact that there is no generally acknowledged explanation. The concept of law and order originates from the citizens ability to predict the consequences of their actions provided that the authorities actions are regulated according to current legislation and will therefore protect the citizens from possible abuse of power that can exist within a state governed by the law.The purpose of this paper is to analyse law and order within the tax assessment through a method that experiments with real and imagined situations with the main purpose of interpreting current legislation. The paper collects essential legislation, preparatory work together with established practice and supplements the method with information from articles, dissertations and the National Tax Authority?s documented directions within the tax assessment.Through juridical argumentation concerning areas, such as legal rights essential to the citizens and the tax assessment, the paper results in aspects essential to the individual involved in tax dispute.
Bevarande av hotade epifytiska lavar och vedsvampar i Norrbottens län : rödlistan som verktyg i praktisk naturvård
Många arter påverkas idag negativt av skogsbruket. Detta visar sig dels i ett växande antal arter på den svenska Rödlistan. I Norrbottens län är idag närmare 500 skogslevande arter rödlistade, och dessa är fördelade över flera olika organismgrupper. Det stora antalet rödlistade arter i skog innebär att det är svårt att direkt utifrån Rödlistan utforma effektiva naturvårdsåtgärder samt generell hänsyn inom skogsbruket. Genom att sammanställa och
strukturera information om de rödlistade arternas krav på livsmiljö och hotsituation kan Rödlistan som verktyg utvecklas.
Vetlandas gatuträd : analys av trädens upplevelsekvalitéer
Street trees have had a prominent role in Vetlandas history from the turn of the century up to present day. Many trees have unfortunately been taken away through the ages, but most of them luckily remains and most of the streets in central Vetlanda are still tree lined.
The comprehensive inventory that has been made shows that lime is the dominant species in Vetlanda with no less than 62 %. The age division is quite even with one peak at the turn of the century, one during the ?60s and another during the ?90s.
Lojalitetsplikt och Omsorgsförpliktelse för styrelse och VD
Sports associations play a very important role in the Swedish civil society, and since the 1st of July 1987 they have been exempted from the duty to pay VAT. By introducing an sufficiently closely related. When the conflict of law exists, the directive will be accorded priority, which leads to the Swedish Sports Federation must examine and considerexemption for sports associations the income tax field and VAT field correlate and the legislative change resulted in more favorable pre-close solutions for all of Sweden's non- profit organizations. In June 2008 the European Commission launched a process concerning Swedish infringement against EU-law, and with it the Swedish civil society, where all Swedish sports associations are included, is threatened. The European Commission wants to, among other things, force sports associations into the VAT system for the purpose of the VAT Directive to be achieved.
Flytande bestånd och barnbibliotek: en intervjustudie med sex barnbibliotekarier
The purpose of this study is to examine the experiences and perceptions of children`s librarians regarding floating collections in public libraries in Gothenburg. In focus for the study are the experiences and perceptions that exist among children`s librarians when it comes to children as library users, the librarian`s working tasks and the professional role as a librarian. The empirical material has been collected through semistructured interviews with six children`s librarians. The material has been analyzed twice. The first analysis has been conducted through qualitative content analysis.
Träning av sydafrikansk pälssäl och afrikansk stäppelefant på djurpark - skillnader och likheter
Training of zoo animals started when the first zoo opened in 1752. The difference between then and now is that from the beginning the zookeepers did not focus so much on animal welfare. Nowadays animal welfare is the most important thing in the training. Therefore, the zookeepers are training the animals mainly for veterinary purposes and activation. The training makes the animals less stresses during handling.
When the zookeepers started to train elephants they used unpleasant stimuli such as a whip when the elephant did something wrong.
Forage production and summer use by ungulates on game fields and surrounding areas
Ungulates are causing conflicts between stakeholders due to browsing damage on forests and agricultural crops. At the same time there is a big demand of keeping high ungulate densities for sports hunting and recreational purposes. Movement patterns of ungulates are strongly correlated with forage availability. Therefore, measures affecting forage quantity and distribution might be a tool to reduce the economical losses in forestry without decreasing the ungulate densities and thereby decrease the conflict between different interest groups.This study investigated the potential biomass production and utilisation of marrow-stem kale (Brassica oleracea var. medullosa), at game fields in Misterhult, Sweden, as well as browsing effects on adjacent forests.
Besvär! : Om motståndet hos två tvångssammanslagna kommuner i samband med kommunblocksreformen
The purpose of this essay is to investigate why the two Swedish municipalities of Frykerud and Östmark were the only municipalities in Värmland that were forcibly merged by the state during the ?Municipality block reform? of 1971, and whether local identities played a role in the resistance against this reform. The study is designed as a comparative case study and builds on both history and political science to analyze the topic from a broader perspective. Based on the research situation three theoretical theses have been formulated, the durability of which will be tested in the analysis part of the essay. The study notes that Frykeruds resistance against the ?Municipality block reform? started when the reform prevented a planned retirement home construction in the municipality. In the analytical part of the essay, the author discusses how the discontent can be interpreted as symptomatic of bourgeois centralization resistance, as well as being due to the fact that traditional, local self-government as a political subject was perceived as threatened.
"Jag letar efter tjuven så letar du kapsyler" : En undersökning om vad barn kan lära sig genom pedagogiska dataspel i förskolan
This thesis treats the extended Swedish rules regarding deduction limitations on interest. The purpose for this thesis is to investigate whether the interest deduction limitation rules have potential to protect the Swedish tax base. The thesis also assesses whether the options presented how the extended rules could look liked had been better to protect the Swedish tax base. Furthermore thin capitalizations rules have been evaluated if this is a better method to protect the Swedish tax base.In 2009 the Swedish deduction limitations rules on interest came in to force to protect the Swedish tax base. Despite these rules companies was still able to avoid Swedish tax and therefore threatened the Swedish tax base.
Salmonellosis in Peruvian guinea pig production : a study to evaluate the prevalence of salmonella spp and importance of the disease
In Peru guinea pigs are raised for meat production and salmonellosis is considered as a major problem. Studies have detected salmonella in animals with enteritis and pneumonia. Salmonellosis exists both in an acute and a chronic form. In the rural areas the diagnosis is made according to clinical signs and macro pathological findings at autopsy.
The major systems applied for the guinea pig production are often classified as family, family-commercial and commercial. These systems differ in number of animals and how industrialised they are.
Tillväxt och potentiell sågtimmerkvalitet i gallringsmogna jämförelseplanteringar med Pinus contorta och P. sylvestris :
The Swedish Cellulosa Companiy, SCA, has today 280 000 ha planted with lodgepole pine (Pinus contorta var. latifolia) (?C?) which is equivalent to 14 % of its total forest area. Exotic lodgepole pine has in previous experimental stands shown a superior growth than the native Scots pine (Pinus sylvestris L.) (?S?).But also the comparison could be questioned because stand histories were was unknown and also differences in age between C and S existed.