Sökning: "habitat fragmentation"

Visar resultat 21 - 25 av 122 uppsatser innehållade orden habitat fragmentation.

1. 21. Studie av fladdermusförekomst och hur den påverkas av habitattyper : I Vara, Alingsås, Vårgårda och Borås kommuner

   Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

   Författare :Caroline Öhman; [2021]
   Nyckelord :;

   Sammanfattning : Insectivorous bats face fragmentation and loss of suitable habitats. Bats numbers are declining in several parts of the world and scientists aim to construct distribution models that can predict occurrence, in order to understand species habitat requirements. LÄS MER

3. 22. The Green Area Factor, Green Infrastructure and Biodiversity : An investigation of the preservation of urban biodiversity within the city of Stockholm

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Alice Wikström; [2020]
   Nyckelord :Biodiversity; Urban Areas; Ecosystem Services; Green Infrastructure; Biotope Area Factor; Urban Planning; Urban Biodiversity; Sustainable Environment; Development District; Green Area Factor; Stockholm; Sweden; Green Infrastructure; Sustainable Urban Planning; Sustainable Development;

   Sammanfattning : Urbanization is increasing around the world and causes distress on the urban green areas as more and more people moves into cities. This leads to expansion and densification of the city and green areas within and around the cities run the risk of being exploited and fragmented. LÄS MER

4. 23. Tree diversity and edge effects in Nhamacoa miombo forest, Mozambique

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Anton Gårdman; [2020]
   Nyckelord :Edge effect; Miombo; Forest fragmentation; Deforestation; Mozambique; Habitat fragmentation; Tree diversity;

   Sammanfattning : Mozambique is to fifty percent covered by forest, most of which belongs to the biodiverse miombo woodlands. The last decades, Mozambique has been suffering from rapid deforestation. The once continuous forest cover has turned into a mosaic of forest patches, farmland, settlements etc. The remaining forest patches are in many cases very isolated. LÄS MER

5. 24. Long term restoration effects : Effects of restoration measures on restoration success in nature reserves in acidic fen, buffered fen, dry heather, wet heather, and wet grassland in Drenthe, Netherlands

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Erika Nyström; [2020]
   Nyckelord :Acidic fen; Acidification; Buffered fen; Dehydration; Dry heather; Eutrophication; Habitat deterioration; Habitat management; Moisture; Nitrogen; Nitrogen deposition; pH; Red listed species; Restoration ecology; Restoration method; Restoration success; Wet grassland; Wet heather; Ellenberg values; nature reserve; Mosse; kärr; hed; fukthed; fuktäng; uttorkning; försurning; näringsöverskott; eutrofiering; kväveöverskott; kväveregn; kvävedeponering; surt regn; habitatförsämring; försämring av naturområden; förvaltning av naturområden; fukt; kväve; pH; rödlistade arter; hotade arter; restaurering; restaureringsekologi; restaureringsmetod; restaureringsframgång;

   Sammanfattning : Habitat degradation, fragmentation and loss are important factors causing loss in biodiversity and red listed species, and restoring habitats is essential in preventing this. However, there is a limited knowledge of the long term effects of restoration measures. LÄS MER

7. 25. Den violetta guldvingens (Lycaena helle) äggläggningsplatser : - En fältstudie i Norrbottens kustlandskap

   Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Författare :Emma Jonsson; [2020]
   Nyckelord :Violet copper; Lycaenidae; Lycaena helle; oviposition site; Bistorta vivipara;

   Sammanfattning : The violet copper (Lycaena helle) is one of Europe’s most endangered butterflies as a result of loss and fragmentation of its habitat. In order to further understand the habitat requirements of this species it is important to observe the specific characteristics of the oviposition sites. There is little research on L. LÄS MER