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124 Uppsatser om Predator attacks - Sida 8 av 9
Vivlar på prydnadsbuskar - nya arter eller förändringar i födopreferenser?
During the last couple of years leaf-edge-cuts, typical to Otiorhynchus wingless-weevils, have been discovered on ornamental shrubs, especially Syringa vulgaris lilac and Ligustrum vulgare privet. These plant species have not earlier been attacked by wingless-weevils and because of that, the aim of this study is to see if new species of weevils have been established in Sweden or if the domestic weevils have changed their food preferences. This work also includes a literature study of known weevil species in Sweden and their host plants, and of wingless-weevil species in Europe that could be invasive here. Locations, where damage to previously named plants has been reported, have been examined. The extension and appearances of the damages have been documented in order to study if different weevil species make different types of edge-cuts.
Vilka stereotypier finns hos brunbjörn (Ursus arctos), lodjur (Lynx lynx) och varg (Canis lupus) i djurpark och vilka berikningar finns? : förslag och rekommendationer om berikningar utifrån djurens beteendeekologi
The purpose of this work was that with the help of a literature review have a single document with information on how the various species: brown bear (Ursus arctos), lynx (Lynx lynx) and the wolf (Canis lupus) living in the wild. The aim was also to show which stereotypic behaviours these different species have in zoos and the enrichments that is already being used and to make suggestions and recommendations on enrichment based on animal behaviour ecology. In zoos, some species thrive well while others have propositions to propagating problems, poor health and stereotypic behaviors. The brown bear, lynx and wolf, live both in the wild and in zoos in Sweden. As these animals have different ways of living in the wild, it is important to accommodate to each species, the way they are kept in zoos in accordance with their behavioural ecology.Brown bears are omnivorous and solitary living species with large energy needs so that they spend most of their day to actively feeding but also rest.
Strindbergsbilden idag : En analys av åtta litteraturhistorier för gymnasiet
The purpose of this study has been to analyze the image of Strindberg in today's upper secondary school. How is the author portrayed in the textbooks and teaching aids, and which parts of the authorship does the textbook and teaching aids authors choose to focus on? This work has been implemented in the form of a textbook and teaching aids survey where eight textbooks for the upper secondary school from 1989 to 2008 has been analyzed with focus on the sections that consider Strindberg and his authorships.What emerges when studying these textbooks and teaching aids is that they give a rather synonymous picture of the man and the author Strindberg. Big focus is aimed on private life and the scandals that the author more or less voluntary became a part of. The majority of the textbooks treats matters as ?the misogynist? and ? the critic of society? and the so called Inferno crisis, and also when one discusses the literary works it is done in the light of the author's own life and accomplishments.When it comes to the author's literary production it is a very limited selection that is presented to the students.
Biological control of powdery mildew in greenhouse produced cucumber : an evaluation of two microbiological control agents
Powdery mildew is a serious problem in both field and greenhouse cucumber production and
can cause serious infection and radically reduced yields. Today, powdery mildew is the main
disease in greenhouse produced cucumber.
Disease control should preferably be both efficient and environmentally friendly, which is not
easy to achieve at all times. Alternatives to chemical control of powdery mildews are biological
control, physical control, non-fungicide control and cultivation of resistant or tolerant varieties.
Biological control can be described as the suppression of damaging activities inflicted
of a harmful organism by one or more other organisms, which are called antagonists or natural
enemies. In Sweden, there are currently no registered biological control products available
to control cucumber powdery mildew.
The aim of this study was to investigate the effect of two biological control products in order
to evaluate their ability to prevent or reduce powdery mildew infection to an acceptable level
in greenhouse produced cucumber. In the experiments, different application regimes were also
studied.
Vilken föryngringsmetod ger bäst resultat på torra och friska marker, höst- eller vårplanering? : en jämförande studie utförd på uppdrag av Stora Enso Skog
Regeneration with scarification and planting is a well known method, but the plants have a tuff period in the beginning. Decease of plants comes from pine weevils, dry weather, browsers, wrong method of scarification and wrong time for the planting. These are some courses why not every planting gets successful.
The purpose with this study is to investigate witch time of planting gives the best result, spring or autumn planting and to give a answer of witch factors are the main course of deceases. The goal is to have the study to decide witch time to plant after final felling.
The choices of plantings were maid from a period of three years. Spring plantings were from year 2005, 2006 and 2007 and autumn plantings were from 2004, 2005, and 2006.The purpose was to compare differences in deceases at the same spring weather.
Sagan om de två tornen : En jämförande fallstudie av hur 11 september-attackerna gestaltades i svensk och brittisk morgonpress
Syfte: Syftet med studien är att belysa hur 11 september-attackerna gestaltades i svensk och brittisk morgonpress en vecka efter händelserna. Tyngdpunkten i undersökningen ligger på jämförelsen mellan tidningarnas gestaltningar av händelserna.Frågeställningar: Hur gestaltas nyheten veckan efter katastrofen? Vilka likheter och skillnader finns mellan tidningarnas gestaltningar? Hur ser förhållandet mellan text respektive bilder/nyhetsgrafik ut i de båda tidningarna?Teori: Studiens teoretiska ramverk är gestaltningsteorin och främst Robert Entmans modeller. Gestaltningsteorin handlar om mediernas inflytande över hur människor upplever och uppfattar den verklighet vi lever i. Då studien är en jämförelse mellan svensk och brittisk dagspress kontextualiseras studien genom en skildring av situationen för dagspressen i respektive land.Metod: Uppsatsen har undersökt gestaltningar i medieinnehåll genom att använda kvantitativ innehållsanalys som metod för insamling av empiriskt material.
Dental and periodontal health in free-ranging Swedish brown bears (Ursus arctos)
Det Skandinaviska Björnprojektet har arbetat med samma björnpopulationer sedan 1984. Detta ger en unik möjlighet att över tid följa samma individer och population och därmed se eventuella förändringar som sker med dessa. Under april och maj 2008, som en del av det Skandinaviska björnprojektets årliga sövningar och märkningar av brunbjörn (Ursus arctos), undersöktes tand- och munhälsan hos 22 björnar med varierande ålder och kön. Alla björnarna vägdes och undersöktes kliniskt. Munhålan inspekterades och fotograferades.
Leaf structure and localization of a transgene protein in barley
Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).
Ett förändringsförslag av Eric Sigfrid Perssons Malmgården - en takträdgård
Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).
Odlingens och lagringens inverkan på utsädes grobarhet :
At seed-growing the aim is to produce a commodity with high germination capacity, good soundness
and purity, and also slight admixture of seeds from other species. The capacity of germination and the
vigour of the seeds may become impaired in consequence of mechanical damage, infection of diseases,
growth of mould, attacks of vermin, high drying temperature, secret germination, sprouting in the ears
etc. The germ belongs to the outer and most unprotected parts of the seed, and consequently this is
much exposed. Even quite sound seeds can instantaneously have low capability of germination. It can
be due to the fact that the seeds are in rest of germination, i.e.
Recreation in the urban countryside
Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).
Ledande roller och beteenden i hindgruppen (Dama dama & Cervus elaphus) ur ett etologiskt perspektiv
Rollen som ledare hos grupplevande djur har ifrågasatts inom den vetenskapliga litteraturen. Kronhjort och dovhjort är de två grupplevande arterna av hjortvilt som lever i Sverige. Större delar av året lever de i könsseparerade, matriarkala familjeflockar som enligt lekmannen sägs domineras av en ledarhind. I denna litteraturstudie har rollen som ledare i en flock analyserats ur ett etologiskt perspektiv. Vetenskaplig och populärvetenskaplig litteratur har jämförts med fokus på sociala beteenden hos framförallt ungulater (hovdjuren), dit bägge dessa arter hör.
Inte bara en kommentar : En studie om krishantering på sociala medier
AbstractTitle: It?s not just a comment ? a study about Crisis Management on Social MediaAuthor: Malin Pettersson 910624 and Amanda White 920310Year: Spring 2014Level: Bachelor degreeDepartment: School of Business and EconomicsSupervisor: Carina HolmgrenExaminer: Frederic Bill Purpose: The purpose of this paper is to develop and test a theoretical model for Crisis Management on social media. Method: The overall literature that was found consisted of traditional Crisis Management and the communication that goes with it, and it was mainly written for traditional channels such as newspapers. The theories could not concretely describe how organizations should handle crisis in Social Media. Therefore, this study focuses on if and how organizations can use the traditional theories when working with crisis management in social media. Through a qualitative method the study has examined and tested the model on three crises, and subsequently improved the model based on the empirical material and the analysis that was made. Conclusion: The conclusion found that organizations need to adjust their crisis management after following guidelines for it to work on social media:- Strategies should be limited to only one, and be either a rebuilding strategy or a bolstering strategy.- The focus should be on emotional communication, and regarding the rational aspects the focus should be on actual actions and plans for the future.- Clear guidelines for what type of questions and critics that should be answered should be set.
Social and economic consequences of wolf (Canis lupus) establishments in Sweden
Wildlife contributes with many benefits to humans but also brings economic costs. From being eradicated in Scandinavia the grey wolf (Canis lupus) is returning to South-Western Sweden and people are not used to its presence. In Scandinavia carnivores have to co-occur with humans in a landscape used for many different interests. Consequences of wolf establishments are e.g. competition for moose, depredation on sheep and attacks on hunting dogs.
Svartrost, Puccinia graminis f. sp. avenae, epidemiologi och bekämpningsstrategier i Mälardalen
Stem rust, Puccinia graminis, has caused enormous yield losses throughout history which have had significant consequences for oat and wheat production. Today in Sweden stem rust is only reported from rye, oats and wild grasses. Stem rust infections in wheat have become unusual due to the general use of resistant wheat varieties and also due to the eradication of barberry, Berberis vulgaris, the alternate host for P. graminis. According to international sources, new races of P.