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1198 Uppsatser om Habitat selection - Sida 21 av 80
Aquaculture : animal welfare, the environment, and ethical implications
The aim of this review is to assess the ethical implications of aquaculture, regarding fish welfare and environmental aspects. The aquaculture industry has grown substantially the last decades, both as a result of the over-fishing of wild fish populations, and because of the increasing consumer demand for fish meat. As the industry is growing, a significant amount of research on the subject is being conducted, monitoring the effects of aquaculture on the environment and on animal welfare. The areas of concern when it comes to animal welfare have here been divided into four different stages: breeding period; growth period; capturing and handling; and slaughter. Besides these stages, this report includes a chapter on the current evidence of fish sentience, since this issue is still being debated among biologists.
Valberedningen enligt Svensk Kod för Bolagsstyrning: En studie ur ett institutionellt perspektiv
With the introduction of the Swedish Code for Corporate Governance in December 2004, most companies listed on the major Swedish stock exchanges were required to have a nomination committee responsible for, among other things, evaluating the incumbent board and nominating new candidates. This master thesis aims at analyzing the effects of these nomination committees on institutional investors in their corporate governance, through a qualitative study of 13 interviews. We have found that institutional investors have become more active through their participation in nomination committees and that they have gained more influence over the companies in which they own shares. We believe that in reality nomination committees have more influence over the selection of the board than was intended when the Swedish Code was written..
Pinus contorta susceptibility to Heterobasidion spp. : a study of stumps, roots and artificial spore infections of stumps
The Lodgepole pines susceptibility to Heterobasidion spp. was investigated in three parts ofthis study. In the first part, discs from freshly cut stumps were collected and analyzed to seeif the fungi can spread and grow naturally in Lodgepole pine stands. In the second part, rootsamples were collected from Lodgepole pines planted in former infected Norway sprucestands to see if the fungi can spread through root contacts. For the third part, new stumpswas created and artificially infected with spores of both the S?type (H.
Grey-sided vole and bank vole abundance in old-growth forest patches of different size and connectivity
Vole populations in northern Scandinavia vary in cycles with peaks every third or fourth year as described by the National Environmental Monitoring Programme of small mammals (NEMP). Some vole species have declined in population numbers since the NEMP started in 1971, especially the grey-sided vole (Myodes rufocanus) which is nearly extinct in the forested region. Since small mammals are an important food source for several avian and mammalian predators, the decline in vole numbers is expected to have consequences for the whole food chain, especially if other vole species start to decline in numbers. This study tried to test the hypothesis that presence and abundance of M. rufocanus (a specialist species) and Myodes glareolus (a generalist species) can be predicted by patch size and connectivity of forest patches >60 years old with a minimum of 15% pine >100years old.
Med liminalitet mot giftermål : Övergångsritualer hos kvinnor i bröderna Grimms sagor
This paper is a study of female liminal developments in a selection of Grimm's fairy tales using van Gennep?s and Lincoln?s theoretical bases. An inductive technique has been used to analyze the results according to the theoretical agendas. To my help I have used Swedish translations of the Grimms? fairy tales from 1883, 1946, 2003 and 2007.The study shows that the fairy tales of the Brothers Grimm fairy tales display the transition rituals identified by Van Gennep and Lincoln.
Värdeskapande i Leveraged Buyouts i jämförelse med noterade företag
The purpose of this thesis is to study the difference in value generation and its drivers between leveraged buyouts and listed companies. The primary objective is to observe if differences exist. A secondary objective is to understand the differences and attempt to provide an explanation based on earlier research on Private Equity. A selection of large Swedish LBO-transactions, carried out between 1998 and 2012, are analyzed and their value generation drivers subject to comparison with a weighted index of companies listed on the Nasdaq OMX Stockholm. A clear difference in value creation is observed, both in size and composition.
KLIMATTOLERANS HOS URBANA TR?D I G?TEBORG: Analys av klimatgr?nser och framtida klimathot
Urban trees contribute significantly to our society. By providing ecosystem services and a habitat that other urban species and ecosystems depend on, both biodiversity and the people in the city benefit. Some characteristics that the trees possess include functioning as biological filters for the atmosphere and water, as well as positively impacting people's mental health. However, urban trees are challenged by stressors such as pollution and a drier environment, making them particularly sensitive to climate change. The goal of this study was to estimate the expected magnitude of climate change in Gothenburg and compare it with the current urban species' natural climate boundaries to understand the extent of the climate threat and which species appear to be most at risk.
Strukturerad- kontra beteendeintervju : Skillnad i mängd och kvalitet på den information som erhålls vid anställningsintervjuer
According to Barclay (2001), behavioral interviews yield higher quality information, than other interview techniques. This study focused on whether the quality and quantity of information differ between structured interview and behavioral interviewing. Two headhunters held 16 job interviews with the two techniques, 9 behavioral interviews and 7 structured interviews. Both headhunters and candidates have evaluated the interviews quantitatively. Initial and concluding interviews have, as well, been held with the headhunters. No definitive answers were found in the quantitative analysis, but the qualitative results suggest that behavioral interviews give, because of the headhunters opinions, more and higher quality information.
Musikavdelningar ur ett tidsperspektiv : En kvalitativ studie av musikavdelningarna på fem folkbibliotek
The aim of this study is to examine how work at music departments in public libraries has changed with time. To analyze this, the role of music libraries as well as music library users, selection, holdings, acquisition and technological development have been examined. The examined data consists of qualitative interviews with music librarians and library assistants at public libraries in Sweden. To get a time perspective, handbooks and articles about music departments in libraries have also been analyzed.This study emanates from Sanna Talja?s discourse analysis of music libraries in Finland.
Beskrivning och analys av superovuleringsresultat och andra fertilitetsregistreringar vid Nötcenter Viken :
Recording and analyses of superovulation results and fertility records at the nucleus herd Viken
The development of different reproductive technologies aim at increasing the number of progeny per individual parent, and in that improving the possibility of genetic progress. One technique, embryo transfer, have facilitated genetic dissemination and shortened the generation interval also in females.
Nötcenter Viken is a company that run embryo collection and embryo transfer in the breeds Swedish Red and Swedish Holstein. It is located outside Falköping. Information is continuously gathered about cows tested at the nucleus herd.
Religionslitteraturen och dess låntagare: en studie på två folkbibliotek
This thesis treats lending figures of literature on religion at libraries in Vårgårda and Lerum.Formulated hypotheses are: The use of literature on religion is higher at the library in Vårgårdathan at the one in Lerum; In Lerum the most literature on religion is used by highly educatedpeople; Ethnic groups and librarians have an influence on the stock.The Christian literature has other patterns than other literature regarding selection criteria,reviews and distribution. The conclusions are: The fact that there are many members ofChurch and Chapel in Vårgårda, does reflect the number of loans of literature on religion in apositive way; Education does not influence, but distance between school and library; Thelibrarians' interest and therefore knowledge regarding religious topics has an impact on theirtreatment of religious books, while ethnic groups do not effect stock and use in either Vårgårdaor Lerum..
Biotopskydd av stenmurar : Skäl för dispens
Stone walls in agricultural land are incorporated in the general protection of biotopes. They are protected because they provide a habitat for endangered species. Therefore it is illegal to carry out proceedings in an area that is included in the protection of biotopes. In order to do that, exemption is needed which can only be granted if there are special reasons. The essay stipulates what these special reasons are.In an exemption errand the interest for nature conservation must be weighed against a public or a private interest.
Studie av kantzoner i Valleområdet och Varaslätten : Inventering av invertebrater, träd, mossor och lavar
Kantzoner är områden där olika ekosystem möts och de varierar i skarphet och omfattning. Områdena erbjuder hög biologisk diversitet då de är en blandning av de mötande ekosystemen samt erbjuder särskilda mikroklimat. Den biologiska diversititen påverkas av bredden, längden och strukturen på kantzonen och de har en biologisk betydelse i och med att de erbjuder habitat, skydd och föda till flera arter. För att påvisa var i landskapet det finns kantzoner kan verktyget GIS användas. I arbetet användes GIS för att avgränsa områdena som arbetet skulle handla om samt för att slumpa ut punkter för inventering i kantzonerna i dessa områden.
Kokosvatten som rehydreringsdryck - Kan kokosvatten rekommenderas som ett bättre alternativ än vatten eller sportdryck efter ett måttligt intensivt träningspass?
Sahlgrenska Academy at University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: Coconut water as a rehydration fluid. - Can coconut water be recommended as a better choice than water or sports drink after moderately intense training?Author: My Green, Joakim LundSupervisor: Henriette PhilipsonExaminer: Frode SlindeProgram: Dietician study program, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 26th, 2014Background: Already in the 1960s an alternative to water as a rehydration fluid occurred, the so-called sports drink. Coconut water has in recent years been claimed as the "natural sports drink" in media. Coconut water is sold in shops and fitness centers around the world and has established itself as an alternative to water and sports drink in terms of rehydration after a workout.Objective: To investigate whether there is scientific evidence to recommend coconut water as a rehydration drink after moderately intense exercise ahead of water or sports drink.Search strategy: The search for articles in this systematic review was performed in the databases PubMed, Scopus, Cochrane and GUPEA.
Värdet av aktierekommendationer
This paper presents a study that evaluates the performance of stock recommendations issued on Swedish stocks during 2003. The selection of recommendations in this paper originates from banks, major brokerage firms and financial press located in Sweden. The total of 171 recommendations consisted of 99 buy recommendations and 72 sell recommendations. Forecast revisions presented in this paper suggest that Investment managers have no ability to predict performance winners, nor do their forecasts in general have any significant impact on stock prices. A mere 50 percent of the recommendations in this revision had a weak ability to outperform their benchmark indexes as in other similar revisions.