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The surrounding landscape’s impact on species density in species-rich grasslands
Linköping University, Department of Physics, Chemistry and Biology, Biology. 1994.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
Abstract [en]

When the agricultural revolution took place, the biodiversity decreased and during the last century more than 90 % of the area of species-rich grasslands has been lost. Fragmentation has occurred with the area lost and insects, e.g. butterflies, suffer because of this. I investigated the impact that surrounding landscapes have on vegetation in species-rich grasslands, by using data from NILS and land use land cover data. I used the area of grassland, forest, water and arable land at radii from 100 m to 40000 m. All landscape structures showed a significant effect on the species density, but at different ranges. Arable and forest were both positive at large radii. Water had a negative effect at short ranges but positive at large ranges. The same was shown for grassland, and that is likely explained by grassland making up a very small proportion of the total area. In conclusion, species density in species-rich grasslands can partly be explained by the surrounding landscape. These results have implication for reserve selection, monitoring and restoration.

Place, publisher, year, edition, pages
2017. , p. 14
Keywords [en]
Landscape; plants; species density; species-rich grassland
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:liu:diva-143195ISRN: LITH-IFM-G-EX--17/3369--SEOAI: oai:DiVA.org:liu-143195DiVA, id: diva2:1159409
Subject / course
Biology
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Examiners
Available from: 2017-12-20 Created: 2017-11-22 Last updated: 2017-12-20Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • en-US
  • fi-FI
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Output format
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