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Betydelsen av markanvändningshistorik för pollinatörer på hyggen
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
2014 (Swedish)Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesisAlternative title
The importance of land-use history for pollinators in clear-cuts (English)
Abstract [en]

Forest clearings can potentially be an important resource for pollinators. Land use history has previously been shown to be important for the number of species and individuals of butterflies in clearings, with a larger number where it historically was meadows, even after a generation of production forest. Plant species richness has also been shown to be influenced by land use history. In this study, pollinators were collected with pan traps on clear-cuts that had at least one generation of production forest, which in the 1870s was either meadow or forest. The results showed that there was no difference in species numbers and individual number between the two types of clear-cuts when it comes to Bombus spp, Syrphinae spp, Lepturinae spp, Cetoniidae spp and Trichius spp. The result is surprising because there is a greater frequency of herbs in clearings that previously had been meadow and the expectations was therefore that there should be more pollinators there. There are indications that the catchability when it comes to the pan trap method is inversely proportional to the floral richness, and the lack of differences could therefore be due to sampling bias.

Place, publisher, year, edition, pages
2014. , 14 p.
Keyword [en]
Pollinators, habitat fragmentation, historical land-use, clear-cut, Bombus spp, Syrphinae spp, Lepturinae spp, Cetoniidae spp, Trichius spp
Keyword [sv]
Pollinatörer, habitatfragmentering, historisk markanvändning, hyggen, humlor, humlebaggar, blomflugor, blombockar, guldbaggar
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-109033ISRN: LiTH-IFM- Ex-14/2866-SEOAI: diva2:735710
Subject / course
2014-06-05, BL32, Linköpings universitet, Linköping, 09:05 (Swedish)
Available from: 2014-08-13 Created: 2014-07-30 Last updated: 2014-08-19Bibliographically approved

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