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Possible metapopulation structure of the threatened butterfly Pyrgus armoricanus in Sweden

Öckinger, Erik LU (2006) In Journal of Insect Conservation 10(1). p.43-51
Abstract
Many insect species dependent on patchily distributed habitats have been shown to exist as metapopulations. Here I investigated the occurrence patterns of the butterfly Pyrgus armoricanus at its northern range margin in Sweden. This was done by mapping all potentially suitable habitat patches within the only area in Sweden where the species occurs (ca. 10 x 20 km), and thereafter checking for presence of the butterfly in all these patches. P. armoricanus was found in 15 patches of dry grassland with presence of one of its potential larval host plants. Both the probability of occurrence and local abundance increased with patch area and decreased with increased isolation. Local abundance was positively related to the presence of an... (More)
Many insect species dependent on patchily distributed habitats have been shown to exist as metapopulations. Here I investigated the occurrence patterns of the butterfly Pyrgus armoricanus at its northern range margin in Sweden. This was done by mapping all potentially suitable habitat patches within the only area in Sweden where the species occurs (ca. 10 x 20 km), and thereafter checking for presence of the butterfly in all these patches. P. armoricanus was found in 15 patches of dry grassland with presence of one of its potential larval host plants. Both the probability of occurrence and local abundance increased with patch area and decreased with increased isolation. Local abundance was positively related to the presence of an additional host plant. The results support the hypothesis that the persistence of P. armoricanus in Sweden is dependent on metapopulation dynamics. However, further studies, both on dispersal ability and on habitat requirements are needed before this can be ascertained. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Insect Conservation
volume
10
issue
1
pages
43 - 51
publisher
Springer
external identifiers
  • wos:000235150200005
  • scopus:31044434924
ISSN
1366-638X
DOI
10.1007/s10841-005-1249-7
language
English
LU publication?
yes
id
982f2707-be91-4b1a-8de4-32b2c002bba2 (old id 159448)
date added to LUP
2007-06-26 13:11:47
date last changed
2019-05-14 01:50:57
@article{982f2707-be91-4b1a-8de4-32b2c002bba2,
  abstract     = {Many insect species dependent on patchily distributed habitats have been shown to exist as metapopulations. Here I investigated the occurrence patterns of the butterfly Pyrgus armoricanus at its northern range margin in Sweden. This was done by mapping all potentially suitable habitat patches within the only area in Sweden where the species occurs (ca. 10 x 20 km), and thereafter checking for presence of the butterfly in all these patches. P. armoricanus was found in 15 patches of dry grassland with presence of one of its potential larval host plants. Both the probability of occurrence and local abundance increased with patch area and decreased with increased isolation. Local abundance was positively related to the presence of an additional host plant. The results support the hypothesis that the persistence of P. armoricanus in Sweden is dependent on metapopulation dynamics. However, further studies, both on dispersal ability and on habitat requirements are needed before this can be ascertained.},
  author       = {Öckinger, Erik},
  issn         = {1366-638X},
  language     = {eng},
  number       = {1},
  pages        = {43--51},
  publisher    = {Springer},
  series       = {Journal of Insect Conservation},
  title        = {Possible metapopulation structure of the threatened butterfly Pyrgus armoricanus in Sweden},
  url          = {http://dx.doi.org/10.1007/s10841-005-1249-7},
  volume       = {10},
  year         = {2006},
}