Change search
ReferencesLink to record
Permanent link

Direct link
Management effects on butterfly and bumblebee abundance in Swedish semi-natural grasslands
Linköping University, Department of Physics, Chemistry and Biology.
2015 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The amount of semi-natural grasslands has decreased in the agricultural landscape and because of this many grassland species are declining. Semi-natural grasslands are dependent on management, but different studies suggest that different management methods are most favorable to species richness and abundance. The aim of this study was to compare the effects of mowing and grazing on butterfly and bumblebee abundance in Swedish semi-natural grasslands. We used data collected through the Swedish environmental monitoring program NILS. We identified 31 comparable meadows and chose 1-10 pastures in the area surrounding each meadow. For six different species groups we calculated the number of individuals found per 100 m. By standardizing the values of the difference between the means for meadows and pastures we were able to compare the effects of the two methods on abundance in each species group. No species group showed a preference for pastures. A significant preference for meadows was found for two butterfly species groups. The four other groups showed a trend to prefer meadows before pastures. According to our study the recommended management method should be mowing, considering protection of butterflies and bumblebees.

Place, publisher, year, edition, pages
2015. , 13 p.
Keyword [en]
Bumblebees; butterflies; grazing; management; mowing; semi-natural grasslands
National Category
Ecology
Identifiers
URN: urn:nbn:se:liu:diva-130799ISRN: LiTH-IFM-G-Ex--15/3035--SEOAI: oai:DiVA.org:liu-130799DiVA: diva2:955106
Subject / course
Biology
Presentation
, Linköping (Swedish)
Supervisors
Examiners
Available from: 2016-09-19 Created: 2016-08-24 Last updated: 2016-09-19Bibliographically approved

Open Access in DiVA

fulltext(509 kB)2 downloads
File information
File name FULLTEXT01.pdfFile size 509 kBChecksum SHA-512
44cfc6858b6ecf1a59c4882ac23d4323f7db3e495dca294bd3b39ffc6462c0261e7ff22e5f75117cae615a5225baa0569cd4eb9956bb06af12d9e5749f954c89
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Dahl, Kristoffer
By organisation
Department of Physics, Chemistry and Biology
Ecology

Search outside of DiVA

GoogleGoogle Scholar
Total: 2 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 79 hits
ReferencesLink to record
Permanent link

Direct link