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751 Uppsatser om Threatened species - Sida 27 av 51
African swine fever in Uganda : attitudes and possible interventions to limit the spread of the disease
The objective of this study was to investigate the attitude towards African swine fever (ASF) primarily among smallholder pig farmers but also among other actors along the pork value chain in Gulu district, Uganda. More specifically, the study aimed to investigate the specific
challenges facing both farmers and other members of the pork value chain using participatory epidemiology (PE).
ASF is a feared viral disease of pigs associated with high mortality, which is endemic in many parts of Africa. The recent history of Gulu district in Northern Uganda can be described as turbulent and the human population has suffered during decades of war and civil unrest. Pig
keeping is considered a potential opportunity for business as well as a way of providing more animal protein in the diet. However, this is threatened by ASF as farmers can lose entire herds due to the disease.
This study can confirm some previously known factors and risk activities such as the free range system of pigs and movement of pigs and pork during ongoing outbreaks, which make disease control difficult.
Vanliga helminter hos hund, katt och häst i Sverige : artbeskrivning och laboratoriediagnostik
This report includes common helminths, symtoms, routes of infection, diagnostic laboratory techniques and prophylactic methods to prevent infection. We have pointed out where there is a risk of zoonotic transmission and how to avoid contamination and infection. We have restricted the number of species to the most common helminths. Some of these helminths do not naturally occur in Sweden (yet) but are nevertheless of current interest when we travel across borders with our horses, dogs and cats.
The diagnostic part of our report tells about different techniques to find an occurance of helminths in samples of faeces, blood, urine or saliva from a horse, dog or cat. We also write about some recommendations on treating parasitic infections and the development of anthelmintic resistant helminths that originates from incorrect use of anthelmintic drugs
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Fredningseffekter och rekryteringsproblem hos abborre (Perca fluviatilis) i Stockholms skärgård
Effects of fishery closure on perch was detected as female perch was on average 5 cm longer in closed areas compared to non-closed areas. This could be a result of larger individuals surviving as an effect of reduced fishing. No effect was detected on the reproduction rate of YOY (young of the year) perch.A zooplankton survey revealed less amounts of the most important plankton groups for YOY perch in areas with failed reproduction, though the difference was statistically insignificant.The distribution of YOY perch and YOY/adult stickleback differed completely in this study with no area where the two species are both present. It is sketchy to draw any conclusions from this data but it remains a field for further investigation.The reproduction problem is concentrated to the outer parts of the archipelago which confirms previous studies of the geographic extension..
Havsöringens (Salmo trutta) och laxens (Salmo salar) lekområden och lekvandring i Vindelälven och Piteälven :
The population of seatrout and salmon are threatened by over-fishing in the sea
and loss of spawning and growing habitats caused by logging activities in many swedish
rivers. The knowledge of the spawning migration and the habitat use of the seatrouts
and salmon are limited. This study analyse the upstream spawning migration of Atlantic
salmon and sea-running brown trouts from the lower part of the rivers to their spawning
sites in the rivers Vindelälven and Piteälven. A knowledge about the distribution of
spawning sites in the rivers will help these fish population in future restoration programs.
In the fishladder at Norrfors in the river Umeälven were 29 sea trout and 20
salmon radio tagged and subsequently released and followed during their spawning
migration upstream Vindelälven. They were tracked on their position in the river once a
week.
Skånes gröna guld : anläggning, odling & mossarter i mossträdgården
This is a 15 hp (10 p) thesis in biology at the programme for Horticulture Management at the Swedish University of Agricultural Sciences, Alnarp. In this literature study we have processed, reviewed and arranged facts and research, to make it more available for those who want to know more about establishment or cultivation of mosses. Our client is Fredriksdal?s Museums and Gardens in Helsingborg who are planning to establish a moss garden. The information is meant to be used by Fredriksdal and other similar facilities.
Trädens betydelse för gatan :
?The trees importance to the street? discusses just that, the trees importance to the street. The purpose of this paper has been to examine what influence the trees have on streets. By writing about good examples of how trees can add good qualities to a street I wish to inspire to more use of trees in future city-planning.
I have examined three streets in Malmö and three streets in Berlin and analyzed the trees influences there through the help of literature by three authors: Great Streets (1993) and The Boulevard Book (2002) by Allan B. Jacobs, Trees in Urban Design (1993) by Henry F.
Stadsodling : möjligheter och begränsningar
Urban farming can be viewed in several contexts. The first part of this work brings up the beneficial effects of farming on our physical and mental health, knowledge as well as on social life in cities. The introduction of gardening in schools can contribute to an increased awareness on both agricultural practices and importance as well as ecological processes. It can also be used in teaching of other subjects. Farming can also contribute to improving the household economy, and the economy on a municipal or national level.
Preparatanvändning och ogräsförekomst på gårdar med olika jordbearbetningsstrategier
Reduced tillage has increased in Sweden during several years, primarily to decrease costs andincrease efficiency in crop production. Despite this, mouldboard ploughing is still the mostcommon primary tillage method on most farms. The aim with this thesis was to compare theuse of pesticides and the occurrence of weeds on ten farms in Skåne and ten farms inMälardalen that use different soil tillage systems. The object of the study was also to clarifywhy the farms had chosen their specific soil tillage system and the consequences it has had onweed occurrence and use of pesticides. The result showed a slightly higher use of pesticideson the farms that use reduced tillage.
Bibliotekarie 2.0: Minabibliotek.se och bibliotekarierollen - en fallstudie på Umeå stadsbibliotek
Library 2.0 is a term which emerged a few years ago and is frequently discussed. There is no uniform definition of the term but the central aspect of the concept is to encourage increased participation from library users.The aim of this Master's thesis is to investigate if and if so, how the professional role of the librarian is affected by Library 2.0. To do that, we have conducted a case study at the public library in Umeå. Their homepage minabibliotek.se is a practical example of Library 2.0. The homepage is based on interactivity and the library users can participate in various ways.We thougt that qualitive interviews was the best way to gain an understanding for how the librarians at the public library in Umeå experience how the work with minabibliotek.se affect their professional role.
Konstnärligt intrång : om att hävda sin rätt till plats i det offentliga stadsrummet
?Claiming the right to space? is an argument frequently used by street artists for justifying illegal art in the public space. The public city space as a room of democracy and right to free speech is by some people considered threatened by commercial interests, and street art has become a way to demonstrate disapproval towards this. Street art is illegal and often anonymously performed in our cities. It developed in the late 1970s from the urban graffiti scene in America, and has therefore a lot in common with the graffiti movement.
Apparently obscure
Through wing pattern, posture and movement, a harmless moth of the family Brenthia imitates an eight-eyed jumping spider. When an octopus of the species Thaumoctopus mimicus sense danger it can alter its appearance to that of a venomous sea snake. They are both drawing attention to themselves. Nevertheless, and because of this, they are protected. The mechanism is called mimicry.
Naturvärdesbedömning av Utanåfladen; En inventering av vårlekande fisk, bottenfauna och vegetation
There are several thousands shallow bays along the Swedish east coast. Most of them are disturbed by different human activities, and undisturbed bays can be considered as quite unique. In the sheltered shallow bays water warms up more rapidly than adjacent water favoring the growth of vegetation, which in turns is beneficial to spring spawning fish species like perch and pike. It is nowadays more common that coastal habitats are inventoried to facilitate future preservation and planning. The aim of this study was to investigate the shallow bay Utanåfladen (59° 53`31.38 N 19°00`44.90 E) in the north Stockholm archipelago and evaluate its habitat value.
Journalistik på liv och död En kvalitativ studie om journalisters syn på medias roll i asylprocesser!
The main purpose of this thesis is to explore journalists? views of the role of journalism in the asylum processes. The potentially problematic phenomenon is growing, and its spread will affect the way publishing decisions are made in the future. The subject is new and foreign to many journalists, and little to no research has previously been done on the subject. Our study will therefore provide new insight in the field of journalism ethics.We have conducted a qualitative study based on interviews with eight Swedish journalists who in oneway or another have reported on threatened asylum seekers.
Undersökning av potentiella probiotiska organismer i tarmmikroflora hos häst med speciell hänsyn till Lactobacillus spp. :
The aim of this study was to isolate and identify Lactobacillus species indigenous to the gastrointestinal microflora of Swedish horses. These lactobacilli are to be used as probiotic candidates in research concerning antibiotic-associated diarrhoea in horses.
Eight horses, age 6-10 years, were selected from a riding school for collection of faeces samples. Man Rogosa Sharp medium and gram staining were used for the selection of supposed lactobacilli. We could identify 33 isolates of supposed lactobacilli. With the use of API tests 22 of these 33 isolates could be identified.
Bestämdhet eller inte : En textanalys av andraspråkselevers muntliga och skriftliga berättelser. Utvecklingen av bestämdhet inom nominalfrasen
I denna uppsats kommer muntliga och skriftliga berättelser av andraspråkselever på Komvux att analyseras med hjälp av performansanalys. Syftet med studien är att se på utvecklingen av bestämdhet inom nominalfrasen och i fall det sker i enlighet med processbarhetsteorin. Det kommer även att ske en analys mellan den muntliga och skriftliga produktionen för att åskådliggöra eventuella skillnader i utvecklingen av bestämdhet.Resultatet visar att det finns belägg för processbarhetsteorin och att detta kan tillämpas på nominalfraserna och dess bestämdhet. Resultatet visar dock inga generella skillnader mellan utvecklingen av bestämdhet när det kommer till skillnaden mellan muntlig och skriftlig framställning. Däremot kan man uttala sig om individuella skillnader hos informanterna..