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3004 Uppsatser om Vegetation impact - Sida 6 av 201

Impact by bomas on the distribution of spotted hyena (Crocuta crocuta) in the Mara Region, Kenya

The aim of this study is to find out if, and in what way the Maasai pastoralists affect the spotted hyena (Crocuta crocuta) through Bomas (Maasai settlement) and keeping of livestock. The study was carried out in the Maasai Mara National Reserve and the adjoining group ranch, Koyake GR, in South-western Kenya.Data was assembled through transect driving, with instantaneous scan sample during two seasons, December 2003 and May-June 2004. Study area contained 12 bomas with three different type of transects each: T1 (0.5 km from boma), T2 (3 km from boma) and T3 (5.5 km from boma), to create a gradual decline in human and livestock impact. Results show that there are differences in the hyena's utilisation of transect type during the day and during the night. The spotted hyena tend to avoid transects close to the boma during the day time, but go there during the night time.

Gräsrotsrörelsen i Israel - Palestina: helt överflödig? En studie om fredsbyggande gräsrotsorganisationer i Israel ? Palestina

In this thesis we have tried to answer the question of whether or not the peaceorganizations working in Israel and Palestine have an impact. We have answered the question by analyzing six different organizations; three who work with children and the other three with women issues. The analysis contains a case study of each organization and then a comparison between the two groups. This study is built on theories about; grassroots organizations, women in organizations and intergroup communication. Our conclusions in this thesis show that there are some similarities between the groups as well as there are differences.

Attrahera, främja och behålla kvinnorna i IT-branschen : En studie om det kvinnliga nätverket Geek Girl Meetup

The aim of this study is to examine the conditions for participation in women's networks for the members of the Geek Girl Meetup network, to expose the members' perceptions of the IT industry and to highlight the network's impact on women's situation in the IT industry. The empirical material consists of interviews and a survey. The interviews were carried out with the network leaders for a better understanding of the network structure and why it exists. The survey completed by the members illuminates how the members perceive the networks function in the IT industry and what kind of an impact the network has on the members and if it has any at all. The result of the study shows that participation in networks like Geek Girl Meetup can be a model for promoting gender equality and improving conditions for women in the IT industry.

Maria ?syster, himladrottning eller..? : Herrens moder i Svenska kyrkans tro och liv i nutid

[?If we zigzag in the middle, it?s OK?] The purpose of the following study is to examine the relationship between tourism and religion in a Balinese context. We look specifically at changes in religious practice, culture and mentality, as well as how religious philosophy is used as a tool for limiting the negative impact of tourism. The methods used are semi-structured interviews and participant observations. Central themes in the following essay are globalization in the form of tourism, westernization, subsystem theory and capitalism, which also make up the theoretical framework.

Betydelsen av anlagda våtmarkers area och ålder för förekomst av sjöfågel inom Linköpings kommun

The aim of this study was to examine what impact restored and constructed pounds and wetlands have on waterfowls in the area of Linköping. The birdlife in five constructed wetlands werechosen to investigate if specific factors like age, size and vegetation affected the avian diversity in wetlands. Also, extra focus has been given to the threatened Horned Grebe (Podiceps Auritus), breeding in the studied area. The results showed that the number of species as well as individuals of waterfowl and Horned Grebe changed over time in what might be a result of succession in the wetlands. Comparing the number of birds to the size of the wetlands showed a clear correlation. Larger areas inhabited greater numbers of species and individuals.

Det Gröna Torget : Omgestaltning av Ronneby Torg

Ronneby torg är beläget centralt i Ronneby stadskärna i sydöstra Blekinge. På denna plats går det att identifiera tre problem som utgör brist på människor (social hållbarhet), rumslighet (mötesplats) och vegetation (ekologisk hållbarhet). Tidigare har torgets södra del innefattat en stadspark vid namn ?Gröna Torget? medan hela torget idag utgörs av en hårdgjord yta med inslag av träd i dess kanter. Det finns ett behov från Ronneby kommun att utveckla torget som en mötesplats, då kommunen utlyst en förslagstävling av just denna anledning.

Socioeconomic impact of infectious animal diseases in smallholder settings in low-income countries : focussing on African swine fever in Uganda

Smallholder farmers in low-income countries face a number of challenges in animal production. Animal husbandry carries great potential in reducing poverty, hunger and gender inequality, but at the same time infectious diseases are prominent threats to farmers? livelihoods and their animals. The objective of this study was to investigate the socioeconomic impact of infectious animal diseases on smallholder farmers in low-income countries, using African swine fever (ASF) in Uganda as an example. The study was conducted in two parts. The first part of the study was questionnaire-based and performed in Gulu district, northern Uganda.

Finansiella rapporters påverkan på aktiekursen : - Ett bidrag till debatten om slopandet av kvartalsrapporter på Stockholmsbörsen.

This study is based on an ongoing debate regarding the Stockholm Stock Exchange, which centers around the possible abolition of quarterly reports. The purpose of this paper is to contribute to this debate by examining how the relationship between financial reports and stock price correlates. The study's methodological approach is based on the Capital Market Research frame-work in which an ERC model and an extended model are used to measure the relationship. Three hypotheses were formed to categorize the direction of the study, these categorizations treats the differences in impact between quarterly and annual reports on stock price, as well as differences in impact as a casual effect of company size and seasonal sensitivity. The results of the study show that quarterly reports have a stronger impact on the share price than annual reports.

Bibaggar i Halländska grustäkter

This report is a result of a first survey of Halland?s gravel pits as an assignment from the County Administrative Board of Halland. The focus has been on Apalus bimaculatus, since the Swedish Environmental Protection Agency are creating a restoration program as it is red listed as Near Threatened. The purpose was also to get an overview of the pits since the County Administrative Board wants to continue this project. Apalus bimaculatus is easy to overlook since it is a short-lived beetle and it lives early in the spring.

Kustnära ekosystem som skydd mot naturkatastrofer : en litteraturstudie från ett riskhanteringsperspektiv

Research suggests that society's vulnerability to natural disasters along coasts could increase as a result of climate change, which is likely to lead to elevated sea levels and possibly an increase in the occurance of meteorological phenomena such as storms and tropical cyclones. Following the Indian Ocean tsunami disaster in 2004 and Hurricane Katrina in 2005, both of which received considerable media attention, empirical data has indicated that coastal vegetation might be able to protect and reduce damages to coastal communities during tsunami events and tropical cyclones.The aim of the essay has been to study the function of coastal ecosystems as protection against tsunami waves and storms from a risk management perspective, meaning that I have, through an overview of scientific articles, compiled current research on how coastal ecosystems can attenuate storm surges and tsunami waves, and analysed how this knowledge can be put into practice in coastal communities from a risk management perspective, i.e. if coastal ecosystems are a viable risk reduction measure, are practically applicable, and if so, how they could be applied.There is empirical evidence suggesting that coastal ecosystems, particularly mangroves, can reduce the strength of a tsunami wave, but full scientific consensus on this issue has not yet been reached. With regard to protection against storm surges, there is extensive scientific evidence that coastal vegetation can mitigate damages and reduce the height of a storm surge, although the wave has to traverse several kilometres inland through thick vegetation for the protection to be effective. A synthesis in the form of a figure regarding the many physical factors that influence wave development through coastal ecosystems has been created in an attempt to simplify and explain the phenomenon.The conservation and restoration of coastal ecosystems can be justified from a risk management perspective, but planting new forest belts for the purpose of disaster mitigation is quite unrealistic and can rarely be sustainable, since, for protection to be effective, the forest belt must extend several kilometres inland from the coast, and would thus likely prove difficult to implement along coastal societies..

Betydelse av lövinslag, död ved och variation i träddiameter för artrikedomen hos småfåglar

Forest management contributes to the changes in forest structure by turning heterogenous forests of varied age into homogenous forests of similar age and thus affect bird species depending on different structures or habitats which are lost during forestry. In this report, a study was made to investigate how the amount of decidious trees, dead wood and variation in tree diameter affect bird diversity. The purpose of this study was to be able to give forest management guidelines to increase bird diversity. This study was conducted by investigating 65 transects in forests of different structure south of Linköping, Sweden. Along the 65 transects, birds were inventoried as well as the vegetation.

Carbon sequestration in the pastoral area of Chepareria, western Kenya : a comparison between open-grazing, fenced pastures and maize cultivations

Carbon sequestration through restoration of degraded pastoral soils is an advocated way of mitigating global warming, and simultaneously alleviating poverty. An often proposed rehabilitation strategy is fencing of pastures, a method that was introduced to the farmers of Chepareria by the Vi-Agroforestry organization in 1987. The landscape of Chepareria changed from eroded, over-grazed grasslands, to a mixture of open-grazed commons, pastoral enclosures and cultivations. The aim of this study was to investigate (1) if the soil organic carbon (SOC) is higher inside the enclosures than on the open-grazed commons, (2) if SOC is affected by duration of fencing and (3) what effect cultivation of pastures has on the SOC. Estimations of vegetation cover and deep profile (100cm) soil sampling was performed on six clusters containing; (1) open-grazing (OG) (2) 1-5 years of fencing (FENCED(1)), (3) 7-10 years of fencing (FENCED(2)), (4) 15-23 years of fencing (FENCED(3)), (5) maize from OG (A(OG)), (6) maize from fenced pasture (A(FENCED)).

Samrådsunderlag för Lysekilsprojektet : Forskning och utveckling av vågkraft

The aim of this research is to find out what environmental impact a wave power park has on the Swedish west coast by creating a consultation paper (?Samrådsunderlag?) for the Lysekilproject at Uppsala University. To highlight the complexity of the problem a system analytic approach was used and illustrated by a Causal Loop Diagram.The overall assessment of the Lysekilprojects wave power park at the Swedish west coast is that it will have a low impact on the environment. This is due to the relative small size of the wave power park and some technical solutions made with the environmental aspect in mind. Artificial reefs and a sanctuary for marine species are effects created by the wave power park and in the longer term the impact will give access to an untapped source of renewable energy, wave energy.

Predation som selektiv kraft bakom differentiering av populationer av sötvattensgråsugga, Asellus aquaticus

Predation is a strong dective force on invertebrate prey. Asellus aquaticus differs in pigmentation reed and submerged vegetation habitats in lakes. Light pigmented individuals al vegetation dominated by Chara sp. while dark pigmented individuals dominate in the reeds. These differences have been hypothesized to result from background matching.

Naturlik förplantering i en urban skala, för ett långsiktigt dynamiskt Science Village Scandinavia : prototyper för skogslika vegetationsridåer som koncept för ett förbättrat mikroklimat, placemaking och ansvarsfull resurshantering enligt Cradle to Cradle

I nordöstra Lund planeras forskningsbyn Science Village Scandinavia (SVS). Stora avstånd mellan viktiga noder i området ses tillsammans med hårda vindar som utmaningar vid arbetet med att göra SVS attraktivt och besöksvärt under den långa exploateringstiden. På uppdrag av SVS AB och Lunds kommun presenterar detta examensarbete ett förslag för en förplantering av naturlik skogsvegetation på platsen. Ett koncept, där smala vegetationsridåer planteras längs de framtida rörelsestråken i SVS, föreslås i examensarbetet som en strategi för att klimatskydda platsen och samtidigt möjliggöra ett bevarande av vegetation som urban grönska i forskningsbyn. I enlighet med projektets stora hållbarhetsambitioner uttrycker konceptet även målet att presentera möjligheter för att använda avlägsnat växtmaterial som en resurs. Hur kan ett långsiktigt dynamiskt vegetationsbyggande, enligt det ekologiska tillvägagångssättet, förena värden såsom vindskydd, rekreationsvärden och ett ekonomiskt resursuttag, både tidigt och på lång sikt? En kunskapssammanställning görs kring vegetation som vindskydd samt hur ett långsiktigt dynamiskt vegetationsbyggande förhåller sig till smalare ridåplanteringar, ett upplevelsemässigt perspektiv, ett tidsperspektiv samt ett växtmateriellt resursuttag.

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