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Is local distribution of the epiphytic lichen Lobaria pulmonaria limited by dispersal capacity or habitat quality?

Öckinger, Erik LU ; Niklasson, Mats and Nilsson, Sven LU (2005) In Biodiversity and Conservation 14(3). p.759-773
Abstract
By surveying and re-surveying 12 forest sites in southern Sweden for the epiphytic lichen Lobaria pulmonaria with a 9-year interval, and measuring tree-related habitat quality variables, we have investigated whether the local distribution of the lichen is limited by poor dispersal capacity or by habitat quality. Dispersal distances were measured indirectly as the distances between colonised trees and the nearest trees occupied by L. pulmonaria in both 1992 and 2001. To compare habitat quality between trees occupied by L. pulmonaria and neighbouring control trees, we recorded tree species and measured age and growth rate of trees, light conditions, bark structure and bryophyte cover. The estimated mean dispersal distance was 35 m, with a... (More)
By surveying and re-surveying 12 forest sites in southern Sweden for the epiphytic lichen Lobaria pulmonaria with a 9-year interval, and measuring tree-related habitat quality variables, we have investigated whether the local distribution of the lichen is limited by poor dispersal capacity or by habitat quality. Dispersal distances were measured indirectly as the distances between colonised trees and the nearest trees occupied by L. pulmonaria in both 1992 and 2001. To compare habitat quality between trees occupied by L. pulmonaria and neighbouring control trees, we recorded tree species and measured age and growth rate of trees, light conditions, bark structure and bryophyte cover. The estimated mean dispersal distance was 35 m, with a recorded maximum of 75 m. Occupied trees were larger and had a larger cover of bryophytes than unoccupied trees of similar size. The results indicate that dispersal capacity probably is the most important factor in limiting the local distribution of L. pulmonaria, but habitat-quality factors may be important on a smaller spatial scale. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Biodiversity and Conservation
volume
14
issue
3
pages
759 - 773
publisher
Springer
external identifiers
  • wos:000228867700010
  • scopus:18844364236
ISSN
0960-3115
DOI
10.1007/s10531-004-4535-x
language
English
LU publication?
yes
id
f78868e5-0422-42a1-9c3f-711288eb819f (old id 145339)
date added to LUP
2007-06-25 15:57:37
date last changed
2017-10-01 03:35:24
@article{f78868e5-0422-42a1-9c3f-711288eb819f,
  abstract     = {By surveying and re-surveying 12 forest sites in southern Sweden for the epiphytic lichen Lobaria pulmonaria with a 9-year interval, and measuring tree-related habitat quality variables, we have investigated whether the local distribution of the lichen is limited by poor dispersal capacity or by habitat quality. Dispersal distances were measured indirectly as the distances between colonised trees and the nearest trees occupied by L. pulmonaria in both 1992 and 2001. To compare habitat quality between trees occupied by L. pulmonaria and neighbouring control trees, we recorded tree species and measured age and growth rate of trees, light conditions, bark structure and bryophyte cover. The estimated mean dispersal distance was 35 m, with a recorded maximum of 75 m. Occupied trees were larger and had a larger cover of bryophytes than unoccupied trees of similar size. The results indicate that dispersal capacity probably is the most important factor in limiting the local distribution of L. pulmonaria, but habitat-quality factors may be important on a smaller spatial scale.},
  author       = {Öckinger, Erik and Niklasson, Mats and Nilsson, Sven},
  issn         = {0960-3115},
  language     = {eng},
  number       = {3},
  pages        = {759--773},
  publisher    = {Springer},
  series       = {Biodiversity and Conservation},
  title        = {Is local distribution of the epiphytic lichen Lobaria pulmonaria limited by dispersal capacity or habitat quality?},
  url          = {http://dx.doi.org/10.1007/s10531-004-4535-x},
  volume       = {14},
  year         = {2005},
}