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880 Uppsatser om Loss of habitat - Sida 16 av 59
Effekter av predationsrisk på sånglärkors (Alauda arvensis) habitatval på åkermark
Along with other European farmland birds, the skylark (Alauda arvensis) has declined rapidly since the 1970?s. Between 1975 and 2003, the Swedish population of skylarks declined with 64 %. In Britain, the decline is often explained by alterations in farming practices in general and the shift from spring-sown to winter-sown cereals in particular. The dense vegetation structure of winter cereals is limiting the number of breeding attempts possible, causing the entire population to decline.
Förslag till skötselplan för Uppsala högar och Tunåsen : ett exempel på medbestämmande planering
This Master thesis is made at the request of the local municipality of Uppsala in Sweden. The purpose of this work is to create a guiding management plan. Recreation, conservation of the cultivated landscape and the historical environment, conservation biology and the aim of the landowners are all considerd. The area is almost 34 hectares and located north of the centre of Uppsala. Landowners are the National Heritage Board, the diocese of Uppsala, the university of Uppsala, the local municipality of Uppsala and one private landowner.
Kombinerat system för ventilation och rumsuppvärmning : Parameterundersökning i simuleringsmodell för takvärmesystem
A large amount of our time is spent indoors in an artificial climate. To make the experience pleasant there are requirements on the ventilation and the heating system. At the present time the most common form of heating is a radiator system complemented with a ventilation system. A ceiling heating system with combined heating and ventilation can replace the two separated systems. The benefit with a ceiling heating solution is that it saves space since the radiator system is no longer needed.
Fjällfågelinventering i Dalarna : Vilka fågelarter finns där och i vilken miljö hittar man dem?
Studiens mål var att undersöka vilka fågelarter som hittas i Dalafjällen, i vilken miljö man hittar dem samt ifall det fanns en separation mellan arter i val av häckningsplats. Undersökningsytan kom att bli Drevfjällens naturreservat och koncentrerade sig kring högsta fjälltoppen Härjehågna. Sedan flera år tillbaka har detta område inventerats av Länsstyrelsen i Dalarna som en del i deras miljöövervakningsarbete. Data ifrån 2011-2013 års inventeringar användes till denna rapport. Fältstudierna bestod av två rutter där två inventeringsmetoder kombinerades: punkttaxering och linjetaxering.
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.
Utopia Trek : utopibegreppets resa genom Star Trek
Humanity has always dreamed about a better world. These dreams has manifested themselves in the vision of Utopia - the good place, but also the non-existing place. Up until World War II man still wrote optimistic descriptions of this ideal world, and spread the idea through literature. In the aftermath of the atomic bomb and under the influence of the cold war, these publications seized to surface in literary surroundings. Despite this utopia did not die - it has only changed.
Movement pattern and habitat use of female grass snake (Natrix natrix) in a semi-urban environment
Rörelsemönster och habitatanvändning hos ormar är ett område där relativt lite forskning har gjorts trots tecken på minskande populationer på flera platser i världen. Snoken (Natrix natrix) är en vanligt förekommande orm i Sverige som tycks vara på nedgång, troligen på grund av en sämre tillgång på äggläggningsplatser. Vanliga äggläggningsplatser i Sverige utgörs av gödselstackar och komposter vilka ger den stabila temperatur som äggen behöver. Dessa har dock blivit både färre och mer svårtillgängliga under det senaste århundradet. Huvudsyftet med denna studie var att undersöka vilka äggläggningsplatser som används i ett område där gödselstackar saknas och hur anpassningsbara snokhonor är till nya områden.
Opera i Stockholm : Stadsgårdskajen
The report is about efficiency of a current production group where there is no clear production flow and there are some buffers between the operations. The efficiency is done with the help of a tool that is calledWork process of flow production which is used by Atlas Copco CTO. The most obviously results are that the lead time drops from 25 hours to 425 minutes and that the balancing loss decreases from 85 % to 8 %. The report focus on decreasing transports, decreasing buffers, more reliability in lead time and quality. And a more stimulating labour content for the workers is another result..
Att vara ung och leva med diagnosen ADHD. En kvalitativ intervjustudie med fokus på sociala och existentiella aspekter
Today many children and youths are allocated to ?The Swedish Authority of Child and Youth Psychiatry (BUP) for the sake of being investigated by means of a neuropsychiatric inquire and many of which are assigned the diagnosis ADHD. During recent years ?The Swedish National Board of Health and Welfare? has declared, in it?s annual account of the current psychiatric state of Swedish Children and Youths, that the healthcare provided for those with neuropsychiatric diagnoses ? such as Asperger syndrome and ADHD, has increased.ADHD is short for Attention deficit hyperactivity disorder, which implies neuropsychiatric impediments i.e. hyper activity, inadvertence and an inability to control impulses.The aim of the Study is to describe and analyze how youth, in the age range of sixteen to eighteen years of age, diagnosed with ADHD define themselves, their daily life, their social state, their next to kin relationships and, finally, their concept of their future.The Study is qualitative.
Viktiga faktorer för bevarandet av järv
Järv är en av de viktigaste predatorerna på semidomesticerad ren i Sverige idag och bevarandet av järv innebär en konflikt med rennäringen. I den här litteraturstudien undersöks järvens födosöksbeteende och hur det påverkas av närvaron av varg och lodjur samt om
konflikten mellan järven och rennäringen kan minskas. Vilka andra faktorer är viktiga för bevarandet av järven?
Järvpopulationen i Sverige har de senaste åren varit ganska stabil på drygt 600 individer men med liten genetisk variation. Järvens utbredningsområde är sträcker sig längst bergskedjan på gränsen mellan Norge och Sverige Under de senaste åren har järven börjat återetablera sig i
skogslandskapet En låg årlig reproduktion gör järven beroende av hög överlevnad hos vuxna honor.
Beräkning av värmeförluster och energieffektivisering av elbussar
The ?civilized? world is in need of fossil fuel in order to function. Hybricon AB is a company in Umeå that is developing a technology that hopefully can reduce parts of this need. They are currently testing their two electrical busses (with Hybrid backup) in city traffic on the roads of Umeå in cooperation with the county of Umeå. The busses are originally diesel-busses, but the diesel motor has been replaced with two electrical hub-motors with a power of 145 kW each that are powered by batteries.The batteries are charged at the end station after each route. In case the batteries should run low on capacity during driving, they can be recharged by the so called genset.
Indelning av trakter inför gallring på Holmen Skog : en utvärdering av svårigheter och möjligheter
A common goal in practical forest management is to maximize the yield, measured in economical terms. When a forest stand is thinned a so called inoptimality loss can arise due to non-optimal decisions. This means that the selected management schedule results in a lower net present value than the optimal one which lowers the profitability for the forest owner. Holmen Skog uses the term tract which means an aggregation of stands made before a management action. A tract should be delineated in different tract parts in connection with pre-thinning planning if there is different bearing capacity within the tract, different thinning grades should be used or if the tract contains a weaker part that should not be thinned.
Personnnummer non grata- En kvalitativ studie om hur uppfattningen om äldre arbetskraft påverkar de äldres situation i arbetslivet och vid rekrytering
The average age of the working population in Sweden is increasing, along with the number of retirements. Meanwhile, the number of people entering the labour market is declining. In order to avoid a loss of key skills and competences because of the resulting labour gap, and to ensure future economic growth, it is vital to utilise the aging labour force more efficiently. Nevertheless, many Swedish companies are inefficient in managing their aging workforce. In fact, it has emerged that senior workers in Sweden are discriminated against their age and not attractive on the labour market.
En utmaning: Sjuksköterskans bedömning av smärta hos personer med demens.
People with dementia often have difficulties expressing their needs. Untreated pain within this group can be manifested as depression, agitation or loss in appetite. It can be a challenging task for a nurse to estimate, treat and evaluate pain for people with dementia. With good knowledge and an empathic approach, nurses can often recognize and relieve pain amongst these people. Despite this, litterature often suggest that unrecognized and untreated pain is common within this group..
Utredning om huruvida Dalarnas Tidningars produktion passar en KBA Cortina
This degree project illustrates newsprint and waterless offset. A new news press was introduced at Drupa-00, Cortina from KBA, which is the first news press dedicated the waterless technique. With actual statistics from the company in question an investigation was made whether their production fits this press. It came out in the investigation that the production of the company, from statistics, fits this press very good. A table was made where different timeschedules were accounted for the new press, with semi- and full automatic plate changing for present and to be added papers.