Change search
ReferencesLink to record
Permanent link

Direct link
Importance of habitat quality and landscape factors for a monophagous shield bug on a rare host plant
Linköping University, Department of Physics, Chemistry and Biology, Ecology. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
Abstract [en]

Understanding the factors affecting species distribution and at what scale a species respond to these factors is a major challenge in conservation biology. I studied the distribution and abundance of a monophagous shield bug Canthophorus impressus at three spatial scales: host plants, patches and circular landscapes (area ca. 3 km2), to determine the relative importance of the different spatial scales and how habitat quality, amount and spatial configuration affect the distribution of C. impressus. Influence of habitat characteristics on occurrence and abundance of the bug was analysed with separate generalised linear mixed models. The data show that effects of habitat quality and amount dominate over configuration in determining the distribution of C. impressus. The bug prefers large host plants in warm conditions on a plant scale and abundant host plants in a landscape scale, whereas patch scale was not important for the distribution of the bug. Management should aim to preserve sites with abundant host plants and promote large host plants with low to moderate grazing. To secure sufficient number of host plants in the landscape, high densities of suitable habitat such as semi-natural grasslands should be preserved. This study suggests that analyses of multiple spatial scales are crucial for identifying appropriate actions for successful conservation of species living in fragmented habitats.

Place, publisher, year, edition, pages
2012. , 20 p.
Keyword [en]
Canthophorus impressus, conservation, habitat quality, landscape, spatial scale, Thesium alpinum
National Category
URN: urn:nbn:se:liu:diva-78409ISRN: LiTH-IFM-A-EX--12/2631--SEOAI: diva2:532432
Subject / course
Life Earth Science
Available from: 2012-06-11 Created: 2012-06-11 Last updated: 2012-06-11Bibliographically approved

Open Access in DiVA

fulltext(810 kB)209 downloads
File information
File name FULLTEXT01.pdfFile size 810 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
EcologyThe Institute of Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 209 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: 130 hits
ReferencesLink to record
Permanent link

Direct link