157 uppsatser · sida 6 av 11
… growing plants rapidly colonize abandoned semi-natural grasslands, threatening biodiversity. The objective of this experiment was to determine the effects of breed and season on diet composition, with special reference to four competitive species found in wet areas ” in cattle …
Inventering av insekter och fåglar i bebyggda områden i Solna kommun
All over the world the urbanisation increases at the expense 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 …
på nationell och regional nivå
Att bevarandet av biologisk mångfald är en grundpelare för att nå en hållbar utveckling enades världens länder om i Konventionen om biologisk mångfald (CBD) som upprättades under toppmötet i Rio de Janeiro 1992. I konventionen förespråkas den s.k. ekosystemansatsen (EA), vilket …
en fallstudie hur miljöpåverkan av en dagvattendamm intill ett Natura 2000-område kan bedömas
… of toxic effects on an established animal life in the pond. At a start the biodiversity in the area could be positive if a vegetation and animal life is established in the pond despite the harsh water quality. In long-term there is a risk that toxic effect occurs on organisms in …
… mainly beeches. In 2004, the lake was restored which was beneficial to its biodiversity. A value to bear in mind is Näsbyholm's unique location on the hill. Arable landscape and Näsby farm are important because they represent a well-functioning agriculture with a long and …
En textanalytisk studie av biologisk mångfald i läroböcker
Biological diversity is one out of four dimensions, characterizing the subject of Biology ac-cording to the school curriculum. As a concept, biological diversity had its break through at the UN environmental conference in Rio de Janeiro in 1992, where the convention about …
Hur fungerar målstyrningen av grönstrukturen i praktiken?
… green spaces has decreased, which has impact on humans recreation and the biodiversity. The economic aspect has great impact on the planning process which gives indications that the environmental objective may collide with other sector goals within the municipality. The thesis …
The sandy beaches of Vänern are threatened by overgrowth and thereby the biodiversity is at high risk to decline. This study is based on an inventory of vegetation of overgrowth character and mosses. The frequency and spread of mosses is perceived as an indication of initial or …
en fallstudie av olika synsätt i samband med upphävande av naturreservat
… to point out nature areas grows, both for the sake of outdoor life and for biodiversity conservation. Since nature conservancy and spatial planning constitute two different parts of the municipalities land use control, a case study has been carried out in two municipalities in …
… are rich in species and the occurrence of dead wood is an important factor for biodiversity. In order to identify valuable deciduous forests for bio-diversity, conservation needs good analyses and planning tools. Habitat models combined with geographic information systems can be …
Förslag till utgångspunkt för studier av samverkansprocesser i förvaltningsområden med naturresurser
… today stress the importance that ecosystem resilience is promoted by biodiversity conservation and that we need to find solutions for local ecosystem management practices. This essay aims to find theoretical approaches and perspectives that can be used in a wider framework to …
En jämförande studie av fyra län i Sverige
… comparison the premier contribution when it comes to halting the loss of biodiversity. This essay is a case study on how the regional work with the Natura 2000-network has been carried out in four different counties. These counties are Södermanland, Västernorrland, Jämtland and …
Har diversiteten av kärlväxtarter förändrats?
One of the main reasons for the massive loss in plant species diversity is the fragmentation of habitats. In Europe, open pastures and meadows are the habitats going through the most changes during the 20th century, according to the agricultural changes. In this study vascular …
en metod för tillämpning i ett kontinuitetsskogsbruk?
… of tree species and a continues tree cover, there is potential to increase the biodiversity and the value for recreation (Emborg m.fl. 2000, Berg m.fl. 1995, Mattsson & Li 1994, Holgen m.fl. 2000). However it is also necessary that the methods will yield a reasonable economic …
… roles for Fritid- och Naturkontoret, Uppsala municipality, is to monitor biodiversity in the context of urban planning. The majority of the Uppsala municipality residents live in urban areas and most of them spend some of their spare time in natural areas in cities and their …
