Sökning: "Lichen community"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden Lichen community.
1. Relations between tree and habitat characteristics and the epiphytic lichen flora on oak : a case study from Lövön, Bohuslän
Kandidat-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : Oak-rich forests and wooded pastures harbor diverse and distinct epiphytic lichen flora with many rare and threatened species. As these habitats have been subject to a substantial decline and degradation over the past centuries, oak woodlands have progressively come into focus for preservation. LÄS MER
2. Long-term Nitrogen Deposition and Recovery of Epiphytic Lichens : Concealed memory and implications
Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskapSammanfattning : Anthropogenic activities have increased nitrogen (N) emissions. However, higher N deposition is associated with negative fallouts in ecosystems, highlighting the necessity to define its critical load (CLO). Lichens, with their lack of roots, stomata, and cuticles, are helpful air pollution indicators and can be used to establish N CLO. LÄS MER
3. Reindeer Husbandry and Wind Power : Discourses surrounding the construction of IKEA's wind park on Glötesvålen and its local effects on reindeer husbandry
Kandidat-uppsats, Malmö universitet/Institutionen för Urbana Studier (US)Sammanfattning : The exploitation of land in Northern Sweden has caused a significant depletion of grazing grounds for semi-domesticated reindeer. This is a threat to the indigenous Sami reindeer herders of Sweden, who rely on the grazing ground in order to sustainably feed their herds. LÄS MER
4. Poplar for biodiversity? : comparison of lichen communities in stands of Balsam poplar, Hybrid larch, Silver birch and Norway spruce
Master-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : Due to increasing interest in the use of non-native tree species, more knowledge is needed concerning their effects on biodiversity. In this context, epiphytic lichens were investigated in two stands of non-native tree species (Larix×eurolepis and Populus trichocarpa) and two stands of native tree species (Picea abies and Betula pendula) in a field experiment in southern Sweden. LÄS MER
5. Epifytiska lavar som indikatorer på luftföroreningar : en jämförelse mellan stad och landsbygd inom Karlstads kommun
Magister-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Sammanfattning : Luftföroreningar har varit ett betydande problem för människor och naturen. Att lavar påverkas negativt av luftföroreningar har varit känt sedan lång tid tillbaka. Lavars känslighet för luftföroreningar är artspecifik, vilket gör att lavar kan användas som indikatorer på luftens kvalité. LÄS MER
