The value of game for hunting from a social economic viewpoint is an interesting topic that is currently being investigated in a Swedish research program. The amount of damages that the game stocks cause to the forestry is, and has been in focus for a longer period of time. Something that I saw as missing was an investigation of how much an active game keeping measure might cost in lost incomes for forestry in terms of reduced acreage for forest production. This question was the foundation for this investigation, which purpose is to give interested persons with decent knowledge of forestry an example of how cost estimation for forestry resembling the example that is studied can look like. The measures that has been taken is a felling of forest in different ages on both sides of a forest dirt road to create increased asset of forage for the game, and at the same time give hunters that have their post along the dirt road a better chance of seeing passing animals early and increasing the possibility to shoot good shots. The area, which is a part of The Swedish Association for Hunting and Wildlife Management estate Öster Malma, is also used as an example for guests who wish to learn more about managing ungulates. These guests have now got the opportunity to get information on how big the costs are for the measures that have been taken. The main conclusions of this work is that changed timber prices and foremost a change of interest rate makes big differences on the result of the calculations.

Det pågår en ständig debatt mellan olika parter i samhället angående betesskador orsakade av klövvilt. Huvudmålet med dagens viltförvaltning är att anpassa klövviltstammarna efter fodertillgången i landskapet. Syftet med studien var därför att kvantifiera fodermängden för klövvilt i skogslandskapet, undersöka hur olika skötselåtgärder påverkar foderutbudet och analysera kostaderna för dessa. Studien begränsades till ett sammanhängande område i Holmen Skogs distrikt Egen skog. Med hjälp av beslutsstödsprogrammet Heureka PlanVis har foderutfallet för ett antal olika foderskapande skötselåtgärder tagits fram. I de flesta simuleringar var målet att maximera nuvärdet, men det alternativ som skapade absolut mest foder var när målet istället sattes till att maximera biomassan i skogslandskapet.

Perfluoroalkyl substances (PFASs) are ubiquitous in the environment today and they have been detected even in remote areas such as the Arctic. PFASs can be transported by the atmosphere and ocean currents but the transport mechanism is not fully understood. PFASs may be harmful to organisms due to their persistence in the environment, bio-accumulation potential and toxicity. Studies have shown that PFASs can cause adverse effects on the metabolism as well as the endocrine- and reproduction systems in organisms. In this study, PFASs were investigated in glaucous gull (Larus hyperboreus) (n=5) and black guillemot (Cepphus grylle) (n=4) from Svalbard.

Light has always fascinated humans but ever since the invention of the first light bulb, the use of artificial lighting has accelerated dramatically. Darkness has never been as rare as today and the overuse of lighting has created a new phenomenon called light pollution. Most living beings are biologically dependent on the recurrent twenty-four-hour rhythm of light and darkness, called the circadian cycle. Human beings are evolutionary developed after this circadian rhythm and the effects of constant artificial light is yet unknown. Scientists fear the consequences of constant lighting and what it means physically, mentally and philosophically for the human species.

This BSc thesis is a part of an initial step of a collaboration between Skansen and Kenyan Wildlife Service (KWS) and constitutes of an inventory of the Nairobi Animal Orphanage run by KWS. Animal Orphanage takes care of orphaned and injured animals arriving from throughout Kenya. The project started out as a refuge and as a temporary place for animals in need of care and help. With time it has evolved to an establishment that resembles and functions more like an animal zoo. The aim of this inventory is to focus on how the biological needs of Congo grey parrots ( Psittacus erithacus erithacus) and cheetahs (Acinonyx jubatus) are met, in terms of management and housing.

Jakten på bushmeat är en aktuell och komplex fråga i Central- och Västafrika som har ägnats mycket uppmärksamhet och forskning inom flera vetenskapliga discipliner. Köttet och djurdelarna innebär både en födokälla för fattiga, samt som inkomstkälla vid ökande efterfrågan från västvärlden och Asien där djurdelarna ses som lyxvaror och används inom blandannat naturmedicin. Jakt på de stora aporna såsom gorillor, schimpanser och bonoboer utgör ett hot mot arternas överlevnad och en minskad biodiversitet men konsumtion av djurdelarna innebär också en risk mot folkhälsan. De bidragande faktorerna till handeln med bushmeat är många men särskilt stor är skövling av stora skogsområden samt minskade habitat. Vägar som går genom tidigare svårtillgängliga områden och bättre jaktvapen har också haft stor påverkan och resulterat i att många av de utrotningshotade djuren minskar i antal. Uppkomst och spridning av nya sjukdomar är ett hot mot både djur- och folkhälsa när människan konsumerar och kommer i kontakt med sina närmaste släktingar. Olika typer av virus såsom Ebola, SIV, SFV och STLV har visat sig och anses vara patogener som kan förväntas ge uppkomst av nya infektiösa sjukdomar.

Since the wild boars (Sus scrofa) escaped from their enclosures in the 1970s, their numbers has increased dramatically. It is an animal that is currently involved in many traffic accidents. The wild boar is a popular animal to hunt. As the population has grown so has the hunting. But, unfortunately, there have also been an increased numbers of attacks on hunters.

Bark-stripping by red deer (Cervus elaphus) cause extensive damage to economically valuable spruce trees (Picea abies) in Swedish forests. The underlying causes for bark-stripping are not fully understood, and the frequency and severity of damage unpredictably differ between regions. In this study, I investigated if landscape structure (e.g. agricultural dominated landscape opposed to forest dominated landscape), forage availability, population density and disturbance (e.g. roads and settlements) affect bark-stripping frequency.

This BSc thesis is a part of an initial step of a collaboration between Skansen and Kenyan Wildlife Service (KWS) and constitutes of an inventory of the Nairobi Animal Orphanage run by KWS. Animal Orphanage takes care of orphaned and injured animals arriving from throughout Kenya. The project started out as a refuge and as a temporary place for animals in need of care and help. With time it has evolved to an establishment that resembles and functions more like an animal zoo. The aim of this inventory is to focus on how the biological needs of Congo grey parrots ( Psittacus erithacus erithacus) and cheetahs (Acinonyx jubatus) are met, in terms of management and housing.

Francisella tularensis, the causative agent of the zoonotic disease tularaemia, is highly contagious and potentially fatal for a wide range of Wildlife species of the northern hemisphere, also humans. Although recognized as a pathogen for over 100 years, much still remains to be elucidated concerning the ecology and transmission of the bacterium, hence this literature overview aims at compiling data regarding the aquatic association and the role of mosquitoes in transmission of Francisella tularensis subspecies holartica, the sole subspecies in Sweden. While a linkage between the bacterium and natural waters stands beyond dispute, there is no consensus in the literature concerning its potential as a reservoir. However, two prevailing theories can be distinguished; one proposes the water association being mammaldependent and thus merely the result of contamination from semi-aquatic mammals living in close vicinity to the water source. The other, quite contrary, suggests mammal-independence and hence that water, possibly in association with protozoa, serves as an environmental reservoir for the bacterium.

This BSc thesis is a part of an initial step of a collaboration between Skansen and Kenyan Wildlife Service (KWS) and constitutes of an inventory of the Nairobi Animal Orphanage run by KWS. Animal Orphanage takes care of orphaned and injured animals arriving from throughout Kenya. The project started out as a refuge and as a temporary place for animals in need of care and help. With time it has evolved to an establishment that resembles and functions more like an animal zoo. The aim of this inventory is to focus on how the biological needs of Congo grey parrots ( Psittacus erithacus erithacus) and cheetahs (Acinonyx jubatus) are met, in terms of management and housing.

The effect of climate change places demands on how we build cities. Cities have to be built denser to meet the objectives of sustainability but as a result of this densification city green areas are at risk of exploitationand disappearing. The question this raises is whether there has to be an opposition between a dense and a green city?Urban trees are playing a very important role in cities. They stand as the major part of the vegetation in citieswhich are otherwise dominated with concrete and stone.

Emerging infectious diseases poses a great future threat, not only to humans but also to domestic animals and Wildlife. Even though the majority of these infections only cause minor health problems, the relatively recent emergence of HIV clearly illustrates that the next major human pandemic may surface at any time. Regardless of what the name indicates, most emerging human pathogens are not believed to be recently evolved, but to have existed previously in the natural environment. Most emerging pathogens are zoonotic, i.e. able to infect animals besides humans.

The present BSc thesis is part of a newly established collaboration between the Swedish zoo Skansen and Kenya Wildlife Service (KWS), and constitutes of an inventory of the Nairobi Animal Orphanage (AO). As a refuge for wild animals found orphaned, abandoned or injured throughout Kenya, the AO has grown over the years and reached an unsustainable point where external help is needed for solutions and improvements. The aim of the inventory is to specifically consider the husbandry and enclosures of spotted hyena (Crocuta crocuta), serval (Felis serval), Sykes? monkey (Cercopithecus albogularis) and vervet monkey (Chlorocebus aethiops) and with the aid of facts about the species, estimate how well their biological needs are satisfied. Different educational elements are also reviewed since one of the main purposes of the AO is for education.

The current debate about environment and climate change has contributed to more andmore investment in alternative energy sources such as wind, solar and biogas. The Swedish Parliament has set the target that wind power should supply 10 TWh in 2015.In Sweden, wind power establishment began in the early 1980s. Since then the development has gained a tremendous momentum. The purpose of this study was to find out what problems wind power brings and what power relations that exists in connection with wind power establishment and how the landscape is affected by windpower construction, focusing on some cases in Falkenberg and Varberg. This study shows that wind power establishment is a very complicated process.