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Mossinventeringen av Stora alvaret 2011–2013

Tyler, Torbjörn LU and Hallingbäck, Tomas (2019) In Myrinia – Föreningen Mossornas Vänners tidskrift 29. p.22-31
Abstract
During the period from 2011 to 2013, a group from Mossornas Vänner made a field survey of bryophyte flora of Stora alvaret situated on island Öland in the Baltic Sea. The result of the survey was published in Journal of Bryology 2018 (see the reference at the end of the article). We analysed the occurrence of bryophyte species and variation in species richness across 674 plats (0.5 m x 0.5 m) in alvar vegetation (grass/and on limestone pavement with thin or no soil) in relation to substrate characteristics - chemistry, inundation frequency, grazing pressure and geographical variables. We found 148 taxa, including 11 nationally red-listed ones. Species richness per plot was signifzcantly associated with substrate type, positive/y associated... (More)
During the period from 2011 to 2013, a group from Mossornas Vänner made a field survey of bryophyte flora of Stora alvaret situated on island Öland in the Baltic Sea. The result of the survey was published in Journal of Bryology 2018 (see the reference at the end of the article). We analysed the occurrence of bryophyte species and variation in species richness across 674 plats (0.5 m x 0.5 m) in alvar vegetation (grass/and on limestone pavement with thin or no soil) in relation to substrate characteristics - chemistry, inundation frequency, grazing pressure and geographical variables. We found 148 taxa, including 11 nationally red-listed ones. Species richness per plot was signifzcantly associated with substrate type, positive/y associated with pH and grazing intensity, but negative/y associated with soil depth. However, richness of species typical of or restricted to , alvar habitals responded different/y from richness of species more common in other habitats. Typical alvar species were favoured by high pH, shallow soil and low phosphate availability, while generalists preferred relative/y low pH, higher phosphate availability and arganie or mull soil types. Distance from the alvar margin had only weak effects. Concerning the effects on individual species and community composition, inundation frequency and pH were found to have the largest effects, although other jaetors (substrate type, soil depth, bare soil, bare stone, phosphate availability and grazing pressure) were more important for same individual species, stressing the importance of microsite variability and variability in management for regional species richness. From a conservation perspective, it is concluded that grazing is generally positive whilst factors increasing phosphate availability may disadvantage the typical alvar species, and proximity to the alvar margin is not a major problem. (Less)
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publication status
published
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in
Myrinia – Föreningen Mossornas Vänners tidskrift
volume
29
pages
22 - 31
publisher
Föreningen Mossornas Vänner
ISSN
1102-4194
language
Swedish
LU publication?
yes
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5ceded9d-3cdb-4888-ad33-29dd4eabb1c7
date added to LUP
2020-02-04 13:07:20
date last changed
2020-02-12 11:26:16
@article{5ceded9d-3cdb-4888-ad33-29dd4eabb1c7,
  abstract     = {During the period from 2011 to 2013, a group from Mossornas Vänner made a field survey of bryophyte flora of Stora alvaret situated on island Öland in the Baltic Sea. The result of the survey was published in Journal of Bryology 2018 (see the reference at the end of the article). We analysed the occurrence of bryophyte species and variation in species richness across 674 plats (0.5 m x 0.5 m) in alvar vegetation (grass/and on limestone pavement with thin or no soil) in relation to substrate characteristics - chemistry, inundation frequency, grazing pressure and geographical variables. We found 148 taxa, including 11 nationally red-listed ones. Species richness per plot was signifzcantly associated with substrate type, positive/y associated with pH and grazing intensity, but negative/y associated with soil depth. However, richness of species typical of or restricted to , alvar habitals responded different/y from richness of species more common in other habitats. Typical alvar species were favoured by high pH, shallow soil and low phosphate availability, while generalists preferred relative/y low pH, higher phosphate availability and arganie or mull soil types. Distance from the alvar margin had only weak effects. Concerning the effects on individual species and community composition, inundation frequency and pH were found to have the largest effects, although other jaetors (substrate type, soil depth, bare soil, bare stone, phosphate availability and grazing pressure) were more important for same individual species, stressing the importance of  microsite	variability	and variability in management for regional species richness. From a conservation perspective, it is concluded that grazing is generally positive whilst factors increasing phosphate availability may disadvantage the typical alvar species, and proximity to the alvar margin is not a major problem.},
  author       = {Tyler, Torbjörn and Hallingbäck, Tomas},
  issn         = {1102-4194},
  language     = {swe},
  pages        = {22--31},
  publisher    = {Föreningen Mossornas Vänner},
  series       = {Myrinia – Föreningen Mossornas Vänners tidskrift},
  title        = {Mossinventeringen av Stora alvaret 2011–2013},
  volume       = {29},
  year         = {2019},
}