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… 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 …
This report investigates what attitude private forest owners in the County of Stockholm, Sweden have towards biodiversity landconservation. Private landowners were asked to answer a questionnaire containing questions about there property and there attitude towards biodiversity …
Inventering av insekter och fåglar i bebyggda områden i Solna kommun
… of green areas. Many plants and animals are endangered today because their habitats gets smaller or disappear. The green areas that are left in city centres and suburbs are often small and surrounded by roads and buildings. Despite this, several studies have shown that these …
… by elder reindeer herders in north of Sweden tells us that the best winter habitats for reindeers are dry and lichen rich old pine forests (Inga, 2003). An analysis of the variation in utilization between study plots revealed that reindeer selected feeding areas that had a high …
… trees are important for biodiversity in the landscape and there are important habitats for different insects, birds, bats, lichens and funguses. (Levenskog, 2007) The inventory was divided into three different parts. The first part of the work was to study aerial orto- photos …
en fältstudie över föryngring, trädslagsfördelning och död ved 14 år efter åtgärd
… nature in forestry (nature restoration), it is possible to partly reconstruct habitats or disturbances that are necessary to favour the biological values. The aim with this master thesis is to study the nature restoration, (NS, Swedish abbreviation), performed in 11 forest sites …
… habitat quality and one that looked at the spatial distribution of suitable habitats for the Lesser spotted woodpecker. When compared with an inventory of the Lesser spotted woodpecker in the same area, there was a good match between the models and inventory results. This study …
Changes in the vegetation composition after a wetlandrestoration
… Many ecological niches can be found in the wetlands and it is one of the habitats where most different species exist. In the 17th Century people started to ditch damp environments, such as bogs, to create a productive cultivated ground. Further ditches were made when the …
… the software program ArcGIS9.2 to take out drainage areas for the concerned habitats and contact was made with the concerned authoritys. When it comes to supervision of private sanitations is it the countys and for industries is it the county administrative board. Most of the …
en jämförelse mellan vattendrag i Västra Götaland
… the software program ArcGIS9.2 to take out drainage areas for the concerned habitats and contact was made with the concerned authoritys. When it comes to supervision of private sanitations is it the countys and for industries is it the county administrative board. Most of the …
… playing and grooming, was not tremendous. Foraging behaviour occurred in all habitats but most commonly on the ground. A large proportion of the time spent on the ground was dedicated to foraging on fallen fruit but also on leaves which the monkeys picked from low tree branches …
does the area affect species number and composition?
… hold many sand living species including several endangered ones. As many sand habitats with exposed sand are declining, sand pits have a potential as a substitute habitat. This study was conducted to see what effect the area of a sand pit has on species number and composition of …
… (L.). Both species are dependent on disturbance requiring bare sand habitats, which vary both in time and space. The dispersal ecology of A. bimaculatusis poorly known. An increased understanding would be very beneficial to help explain the species abundance pattern and the …
Zoos currently aim at keeping animals in as natural habitats as possible, since they havegone from displaying exotic animals to working with conservation of endangered species.It is therefore more common that zoos keep groups composed of two or more species in thesame enclosure …
förslag och rekommendationer om berikningar utifrån djurens beteendeekologi
… a solitary living predator. These cats are in need of large contiguous forest habitats and want to have different habitat for hunting, eating the prey and rest. The premier food is roe deer (Capreolus capreolus). Lynx hunt by persecute and stalking the prey to start the attack …
