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Food plant density, patch isolation and vegetation height determine occurrence in a Swedish metapopulation of the marsh fritillary Euphydryas aurinia (Rottemburg, 1775) (Lepidoptera, Nymphalidae)
Högskolan i Kalmar.
2007 (English)In: Journal of Insect Conservation, ISSN 1366-638X, E-ISSN 1572-9753, Vol. 11, no 4, 343-350 p.Article in journal (Refereed) Published
Abstract [en]

The occurrence pattern of the marsh fritillary was studied within a patch network on the Baltic island Oland, Sweden. Presence/absence was established for potentially suitable habitat patches (n = 158) on calcareous moist grassland and analyzed in a multiple logistic regression model where patch area, patch isolation and nine habitat quality variables were included as explanatory variables. Larval food plant density was positively, and patch isolation negatively, correlated to the presence of Euphydryas aurinia. Area did not contribute to the explanation of the occurrence pattern. Significant interactions between larval food plant density times patch isolation, and larval food plant density times vegetation height, show that with low food plant density the butterfly primarily occurs in patches with a vegetation height of 4-10 cm, within a distance of 250 m from nearest occupied patch. In patches with a high food plant density the butterfly occurs in patches where the vegetation height is higher, 4-16 cm, and the distance to nearest occupied patch can be longer, up to 1.4 km. This study supports earlier findings in other regions, suggesting that a network of adjacent patches with a high food plant density and a vegetation height within the preferred threshold, despite their size, is an apparent conservation goal.

Place, publisher, year, edition, pages
Springer, 2007. Vol. 11, no 4, 343-350 p.
Keyword [en]
habitat quality; calcareous moist grassland; Baltic Island Oland; conservation, FRAGMENTED LANDSCAPES; EXTINCTION DEBT; HABITAT; BUTTERFLIES; CONSERVATION; POPULATION; QUALITY; LARVAE
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:sh:diva-6161DOI: 10.1007/s10841-006-9048-3ISI: 000250538700004OAI: oai:DiVA.org:sh-6161DiVA: diva2:396979
Available from: 2011-02-11 Created: 2011-02-11 Last updated: 2016-09-29Bibliographically approved

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Dinnétz, Patrik
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf