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105 Uppsatser om Rank-abundans - Sida 2 av 7
Svensk kod för bolagsstyrnings påverkan på aktiekursen i företag med frivillig tillämpning
Due to a rising debate concerning corporate governance that has caused increasing demands for companies? transparency, several codes of conduct have been introduced. The Swedish Code for Corporate Governance is obliged to companies with a turnover exceeding three billions. There are companies that voluntarily apply the Swedish Code. Possible causes to this phenomenon ought to be that the code for corporate governance conveys legitimacy through the insight into the affairs of a company the public receives, through the report of the corporate governance that is published in the annual report and on the home page of the company.
Floran i Blüchers park; Genarp
Lunds kommun har under några somrar tillbaka inventerat olika faunagrupper i olika naturområden i Genarp, en mindre ort som ligger cirka 2,5 mil sydöst om Lund. Under dessa somrar (2007-2010) hittades och registrerades nio olika rödlistade insektsarter i Blüchers park, ett naturområde med en mosaik av olika naturtyper på sandunderlag. Blüchers park är cirka 2,7 hektar stort och ligger i Genarps östra del. Detta arbete kompletterar de ovan nämnda insektsinventeringarna med en florainventering av Blüchers park. Syftet med arbetet är dels att söka förståelse till varför funna kärlväxter i Blüchers park växer där de växer, dels att ta reda på vilka skötselåtgärder som skulle kunna vara lämpliga i området, det vill säga hur förekomsten av funna rödlistade insektsarter kan komma att gynnas genom olika floraskötselåtgärder.Under juni-augusti 2011 återfanns 175 kärlväxtarter i Blüchers park.
Effekter av landskapets sammansättning på humlearters förekomst
The species in the genus bumblebees (Bombus) are important pollinators. In the world there are 250 bumblebee species and there are 34 species in Norway. The purpose of this study is 1) to assess changes in the species composition of bumblebees in twenty different places in Norway that have been inventoried first one time between 1939-1960 and the second time in 2012, and 2) to relate species richness and distributions to current landscape composition with the aid of orthophotos. In this study, I have used regression analyzes on the different bumblebee species that were present or absent at the inventory, using the premises of the following variables: low or high altitude, latitude, longitude and seven different types of land use (farmland, building/plots, open land/pasture, forest, wetland and open or snow-covered ground above the tree line) to see if there was any relationship between each species and the different variables.
I have not analyzed what the landscape looked like at the first inventories and therefore we cannot say whether it has changed and if that is why species number has decreased. This would be interesting to study further and to see if there is any relationship between landscape changes and bumblebee?s species decline.
Rangordningens inverkan på beteendet hos nötkreatur (Bos taurus) och dess konsekvenser för djurtillsynen :
Extensively kept animals for meat production have the right to live in a good
environment. Cattle (Bos Taurus) as social animals live in small herds in the
wild. When holding animals extensively new problems have arisen regarding
human ? animal interactions. One welfare problem is to be able to come close
enough to the animals to investigate their health condition.
Säsongspåverkan i trädgårdsföretag : följder som kan leda till kompetensförlust inom näringen
The purpose of this final thesis is to investigate the effects of seasonal changes in the
horticulture industry. In this study this includes mainly garden designers, constructors of gardens and parks and horticultural businesses at Österlen. Today the most important issue,both in private and in public environment, is that the winter occupation in this area is not big enough. The consequence of this issue can result in the loss of competence to other industries if educated personnel has to stay employed only over season. The study is trying to identify and rank factors that are contributing to the problem, and propose solutions that means work opportunities for companies in the horticulture industry as well as for their employees, during twelve months of the year..
Silkesvante eller piska - Socialtjänstens och polisens insatser och samverkan kring kriminella ungdomsgäng
The purpose of this essay was to study social workers´ and polices contributions with criminal youth gangs and get an insight in how co-operation in the contributions between these governments comes to rank and works.To find out, we carried out a study with a qualitative design based on document studies and interviews with social workers´ and polices who were meeting youths in their work.Our findings were that it's hard to define a criminal youth gang. The social workers´ and polices have both individual and common contributions with criminal youth gangs. One of their most important lining is to prevent new recruitment of young people to criminality. The social workers´ and polices both have an intention to cooperate but they can?t agree about the method of work they shall use, ?the kid-glove or the whip?..
Den gudomliga människan : en komparativ studie av det tonganska hövdingadömet
This essay will examine the social organization in the archipelago of Tonga. To accomplish this purpose, archaic societies and structures such as ancient Egypt and Hawaii will be examined to obtain a closer understanding of the building blocks which constitute a chiefdom or kingdom. Since Patrick V. Kirch (2010) recently redefined the Hawaiian archipelago as a kingdom this essay will examine if the same can be done with the chiefdom of Tonga since it have similarities to the Hawaiian social organization.To do this the essay will examine and describe both the geographical organization of the states and the social organization. Social organization in this essay will be defined as an archaic state organization that requires several levels of administration to rule the society..
Vitryggig hackspett (Dendrocopos leucotos) som paraplyart vid restaurering av skogar med stora lövinslag
Den vitryggiga hackspetten är idag klassad som akut hotad (CR). Arten har minskat kraftigt sedan skogsbrukets modernisering. Skogsbrukets påverkan har inneburit en minskning av andelen gammal löv- och barrskog samt död och döende ved. Vitryggens biotopkrav är stora andelar lövskog med mycket död ved. Naturvårdsverket har tagit fram ett åtgärdsprogram för att rädda arten.
Kungsängsverkets kväverening : inverkan på den interna fosforbelastningen i Ekoln
Många sjöar är idag påverkade av mänsklig aktivitet, bland annat är 1 % av Sveriges sjöar eutrofierade, däribland Ekoln. Ekoln är en stor sjö i Uppsala län söder om Uppsala som länge varit eutrofierad. Fyrisån och Örsundaån är de största inflödena till Ekoln och Sävjaån är ett betydande biflöde till Fyrisån. Kungsängsverket är Uppsalas reningsverk och har sitt utlopp i Fyrisån och som ett led i att minska eutrofieringen byggdes fosforreningen ut 1972. Fosforhalterna i Ekoln sjönk och algblomningarna blev färre.
En rankings efterskalv : Om Transparency International och svensk korruption
What impact and effects are created by the placement of an international ranking? Could it be that a top rank is detrimental to an entire country's efforts to fight corruption?This bachelor thesis in political science is about Swedish corruption. In essence, so questioning the Transparency International's indexed rankings that placed Sweden in third place. Issues concern since if the third placement has created nonchalance and a careless mentality in Swedish government and in particular in the municipal operations. Research results show that Transparency International's rankings have low validity and low reliability and that the government is not acting sufficiently to prevent and fight corruption.
Hur påverkas bentiska funktionella födogrupper av kalavverkning? : Effekt på abundans, samt återhämning, av funktionella födogrupper efter kalavverkning kring små vattendrag.
Forestry affects most of the forest-covered land in Sweden. In the landscape, the most common stream type is headwaters, which are important sites for many processes and organisms in both the terrestrial and the aquatic ecosystems. The aim of this study was to investigate how the abundance of benthic invertebrate functional feeding groups in headwater streams develops after clear-cutting and if it also is possible to detect a change in the composition of feeding groups. The study also attempts to determine what factors have an effect on temporal changes in abundance of these groups. For the study, 11 sites in northern Sweden were sampled for benthic invertebrates using a Surber-sampler, and for each site canopy-cover and pH was obtained.
Lärobokens roll för undervisningen i engelska
The purpose of this study is to investigate and describe the role of course books for teaching English to children at intermediate level of primary school in Sweden. The essay is based on a descriptive, qualitative method and interviews have been conducted with seven teachers in different schools, teaching English in year 4, 5 and 6.The result of the study shows that course books have considerably influence on the teaching of English in the schools who took part in this investigation. The participating teachers use a course book as main teaching material and almost everybody follows the traditional routine working with Textbook and complementary tasks in Workbook every week. They base their lessons on course books and use alternative teaching material mainly for fun activities, speaking practice and individualization. Even though all teachers rank speaking and listening as most important for new learners, it is reading which has the largest impact on their teaching.
I skuggan av Preussen : Svenska officerares studieresor till Frankrike före första världskriget
In the decades leading up to the First World War, the Swedish army (as the rest of Swedish society) was greatly influenced by Germany (i.e. subject primarily to Prussian military influence). German equipment was purchased and German training methods and ways of organizing military units were copied. Apart from such easily discernible traces of German influence, the Swedish officer corps - according to earlier research - harboured sympathies for Germany and the German Army. But did the German influences, and the sympathies for Germany, also result in a professional bias ? i.e.
Två år efter restaurering:Vad har förändrats i bottenfaunan?
The aim of the study was to examine if the benthos in a restored portion of a small lowland stream south of Linkoping differed from two non restored reference areas two years after restoration. The reference areas were one stretch downstream and one upstream stretches of the restored stream. The benthic invertebrates were collected using standardized kick sampling. In order to classify the communities and estimate any differences, three different indices were exercised. In addition rank-abundance curves and checklists were used to get a picture of species composition.
Grodsamhällen längs vattendrag på Borneo : En identifiering av habitatkaraktärer viktiga för diversitet och abundans av grodor i tropisk regnskog
The stretch from the riparian zone of a major river, through the mouth and upstream in tributaries forms a range of differing habitats. The aim of this study was to investigate the effect of these different habitats on the riparian frog community in primary rain forest in Borneo; i.e. examine whether any gradients could be demonstrated in terms of species composition, diversity and density of frogs, as well as which environmental characteristics that seem to be of most importance in forming habitats of high conservational value. A major river, Segama, and three of its tributaries were investigated. The surveys were carried out at night by searching for frogs visually and acoustically along the streams, from the shore of the Segama river and 400 metres upstream in the tributaries.