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745 Uppsatser om Threatened species - Sida 46 av 50

Bestämd eller obestämd form? Om substantivets speciesform efter alla

Det svenska språket har ett komplicerat system för att manifestera bestämdhet till skillnad från de flesta andra språk. Detta för med sig att bestämdhet är ett av de områden inom svenskan som orsakar stora svårigheter för dem som önskar tillägna sig svenskan som ett andraspråk. Ett svårt fall gäller substantivets bestämdhet efter alla. Svenskspråkiga väljer en lämplig böjningsform omedvetet. Däremot är det svårt att förklara varför man formulerar sig så som man gör.Inom forskningen på området är det fortfarande inte fullständigt klarlagt hur bestämdhet styrs efter alla.

Generell hänsyn vid avverkning : påverkan av dispens från sexveckorsregeln samt skogsägares kunskap, tankar och åsikter

The forests in Sweden have, for a long time, been managed intensively. This has led to even-aged stands with few tree species and a lack of dead wood. Therefore, general conservation measures in connection with regeneration felling are important in order to promote biodiversity. Inventories carried out by the Swedish Forest Agency, however, show that about 25 % of the felled area does not reach the level of the Forestry Act, regarding general conservation measures. The aim of my study was to see whether exemptions from the six week notice of reporting regeneration fellings (the Forest Agency demands a report six weeks in advance of fellings), affect the results of the general conservation measures taken.

Hur påverkar naturvårdsåtgärder mängden av vedlevande insekter : Manuellt dödade träd vs självdöda

Today?s forest managers implement a large number of methods to increase the amount of dead wood in Swedish forests. They use everything from high cutting of trees to girdling trees and burning forests. However, implementation of these measures without proper knowledge of their consequences is a common problem. This study has been performed to increase knowledge about two of these measures, girdling and high cutting, and how these actions affect the number of wood-living insects living on dead trees.

Djurbensmaterialet på Ajvide : En osteologisk analys och GIS-studie för att undersöka platsens användning och förändring över tid

This thesis presents the results from a osteological analysis and a GIS-study aimed to examinedifferences in the located animal bones in different areas of the excavation site of Ajvde.The osteological material came from five excavated square meters on the site and was comparedwith osteological results from other researchers from different areas to create overview and try tosee differences between the areas.The GIS-study took data from all animal bone material excavated on the site, a total of about 2300kilos, and presented them in maps of spatial distribution for each layer (pictures 4, 5, 6 & appendixpicture 1) to see if there were any clusters of activity and changes between the layers. The dating ofthe culture layer and the burial field (pictures 7 & 8) were presented in maps to see if they could becorrelated with what was seen with the animal bones. Pictures of different shorelines were alsopresented (picture 9) to compare with the results that were seen in the changes of animal bones fromdifferent layers.The results of the GIS-study have shown that the activity on the site have moved over time alongthe hight differences of the land. The earlier layers show activity only on the higher elevation butlater moves down, and in the upper layers activity have been all over the excavated area. Clusters ofanimal bones were seen in the so called ?black areas? of the sites (shown in picture 2) but also otherareas contained a lot of animal bones.The results of the osteological analysis have shown that there are differences in what species arefound in different areas.

Människans inverkan på hundar ? och hur det kan påverka arbetet inom djursjukvården

The aim of this study was to describe how body language of humans affects the domestic dog (Canis familiaris) and how it can be implanted in the stressed situation that occur at an animal hospital. The subject is brought to notice because the author has experienced that dogs can get more stressed when a stressed and nervous owner is attending. Humans affect each other through posture, facial expression, voice and movement, and are often driven by their emotions, which can differentiate the verbal communication from the non-verbal communication. This occurs both consciously and unconsciously. Every human uses body language but not everyone knows how it is used or how to understand it.

Handel med hotade djurarter :

?År 1973, kom ett antal länder överens om att handel inte får vara orsaken till att vilda djur och växter utrotas.? http://www.wwf.se/show.php?id=1122930 Idag hotas över 30,000 arter av djur och växter världen över av utrotning och en fjärdedel av jordens växter och djur befaras att utrotas inom de närmsta 50 åren. De senaste 100 åren har mer än 50 % av den tropiska regnskogen tagits ner och när miljön förändras är det flera djurarter som har svårt att anpassa sig och därmed minskar i antal. Utöver miljöhotet är handeln en viktig bidragande faktor till att arter minskar i antal. Handeln med redan hotade djurarter är ofta illegal och de ekonomiska intressena är stora då risken för upptäckt är liten och straffen är låga.

Brevhantering av anmälningsärenden - vad blir effekten för djurskyddet?

In Sweden everyone has the possibility to report deficiencies in animal welfare they encounter. They report this to the county administration in their county and such a report is called a complaint case. Complaint cases are normally handled with animal welfare inspections, carried out by animal welfare inspectors from the county administration in the county where the animal keeper with reported deficiencies lives. The county administrations in Sweden receive a lot of complaint cases that differ in grade of how severe the deficiency is. The complaint cases are given priority by how severe the deficiency seems to be.

Användande av avskjutningsstatistik i förvaltning : påverkar tidigare jakt CPUE?

In fisheries, there is a long tradition to use catch data when evaluating changes in the stock and effects from harvesting. It is a common practice to use Catch Per Unit Effort (CPUE) as an index of population size, and several studies have investigated the properties of CPUE in relation to population abundance, spatial distribution and efficiency of gear. In research, catch rate on trap-transects is used as an index of abundance for wildlife species but CPUE is rarely applied as a tool in harvest management.In 1993, more than 60 000 km2 of the state managed mountain range in Sweden was opened to the public for small game hunting, under the responsibility of the county administrative boards in Jämtland, Västerbotten and Norrbotten. The total area is now divided into 332 hunting units (median=73 km2) and an internet based system is used to administer licences and reporting bag statistic. Each hunter has to register the results within two weeks after the hunt.

Studier av koppar i mjölk : en prooxidant med negativa effekter på mjölkkvaliteten

The taste of the dairy product is probably the main factor determining consumer?s dairy products choice. Consequently it is of great importance that the product tastes good and as expected every time. Off-flavors in milk can be caused by for example oxidation of the milk fat. Since copper is a prooxidant, a high copper content in the milk can cause oxidation.

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.

Privata skogsägares inställning till frivilliga naturvårdsavsättningar samt kvalitets- och tillväxthöjande skogsskötselåtgärder :

The business mission of Norra Skogsägarna is to achieve a profitable forestry for the private forest owners. With this as a background it is of interest for the forest owner association to know how forest owners think about voluntary retentions, the methods of increasing production and quality and if there are differences between those who have chosen to certify their forest and those who haven?t. This kind of knowledge is of importance, to in an effectively and adjusted way, help the forest owners achieve a profitable forestry. The objective of this master thesis is to increase knowledge about private forest owners? opinions of the methods of increasing production and quality and to what extent these methods are used.

Meeting, greeting & seating : a design proposal for Magomeni garden, Dar es Salaam, Tanzania

More than fifty percent of the world population today lives in cities, and the pressures of urbanisation are particularly present in developing countries. As landscape architects, it is important to gain knowledge about the effect of urbanisation and ways to prevent the negativities. Experiencing the effects in person in a developing country, as well as learning from and about other cultures, enhances the understanding for global situations. Dar es Salaam is located in one of the most rapidly urbanising regions in the world, which puts pressure on the environment and the humans living in it. Lack of means to regulate land development has led to a situation where expansion of unplanned settlements occurs, with spatial disorder as a consequence. This has in the extension led to a decreasing amount of publicly available and qualitative green spaces, and degradation of the few ones that exist. There are facts that strengthen the status of urban parks, which especially becomes relevant in developing countries where many people live in sparse and exposed conditions.

Concentration and offtake of trace elements and macronutrients in Italian ryegrass (Lolium multiflorum Lam.) and spring barley (Hordeum vulgare L.) grown on soils amended with water treatment residual sludge

Aluminium sulphate (Al2(SO4)3) is usually added during the drinking water treatment processin order to precipitate organic and inorganic material, resulting in aluminium-based drinkingwater treatment residual sludge (WTR). Since 2003 Swedish law no longer permits WTR tobe deposited in lakes, and there is an interest to explore the possibility to utilize WTR as soilamendment. The aim of this study was to examine the effects of WTR application on cropgrowth and concentrations of macronutrients and trace elements (including micronutrients andpotential toxic elements). A greenhouse pot experiment was conducted with three soils; a clayloam rich in phosphorous (P), a loamy sand rich in P, and a silty loam with a low soil Pconcentration, and two crop species Italian ryegrass (Lolium multiflorum Lam. cv.

A screening for Schmallenberg virus among sheep, goats and cattle in Zambezia province, Moçambique : and preparations for a metagenomic survey of virus in mosquitoes

As the world´s population increases and people's living conditions are improving, larger areas are needed for houses as well as food production. This means that new areas are exploited and that people, livestock, blood sucking insects and wild animals are forced to live close together. In combination with the global warming, leading to extreme weather such as floods and storms, this allows both new and old pathogens to emerge. The number of "emerging infectious diseases", EIDs, has increased in recent years and many of them have their origin in poor, tropical countries. Moçambique is therefore considered to be a high risk area for EIDs. Schmallenberg virus, SBV, was discovered in 2011 as an "emerging infectious disease" in dairy cows in Germany.

Rödlistade kärlväxter i Göteborgs innerstad : temporal och rumslig analys av rödlistade kärlväxter i Göteborgs artdataarkiv, ADA

Biologisk mångfald i urban miljö har visats sig ha stor betydelse för människansrekreation och fysiska och psykiska hälsa. Samtidigt förbättras stadens hälsa genom debullerdämpande, luftrenande och klimatförbättrande egenskaper som vegetationen har.Syftet med denna undersökning är att utföra en temporal och rumslig analysmed avseende på antal och utbredning av rödlistade kärlväxter i Göteborgs innerstad under1900-talet. Utgångsmaterialet är Göteborgs artdataarkiv, ADA, en databas framtagen avGöteborgs miljöförvaltning som innehåller observationer av rödlistade och andra skyddsvärdaväxt- och djurarter. Då databasen är en sammanställning av olika inventeringar över lång tidär skillnaderna från ett material baserat på en systematisk inventering stora. Vagalokalangivelser och okänd observationsfrekvensen i ett område är faktorer som påverkarsäkerheten i materialet men det kompenseras genom ett stort antal observationer undermycket lång tid.Den temporala analysen av antalet rödlistade kärlväxter i Göteborgs innerstadvisar på en tydlig nedgång i rapporterade arter.

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