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Sökning: L773:1102 4194

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  • Backéus, Ingvar (författare)
  • Mossflora över Sankta Helena
  • 2013
  • Ingår i: Myrinia. - 1102-4194. ; 23, s. 84-87
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • A new bryophyte flora of St. Helena in the South Atlantic is presented. Of the known 110 species, 26 are (as presently known) endemic.
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  • Hallingbäck, Tomas, et al. (författare)
  • Mossfloran på Ölands alvar – ett nytt inventeringsprojekt.
  • 2012
  • Ingår i: Myrinia – Föreningen Mossornas Vänners tidskrift. - 1102-4194. ; 22:1, s. 6-11
  • Tidskriftsartikel (refereegranskat)abstract
    • In 2011 a field survey of the bryophyte vegetation and flora of Stora Alvaret, the largest continuous alvar area in Sweden situated on the Baltic island of Öland (SE Sweden), was initiated. A number of transects crossing the alvar area from west to east will be surveyed. The aim of the investigation is to try and elucidate the realtionship between the bryophyte flora and environmental parameters such as soil chemistry, soil wetness, soil depth, disturbances from livestock grazing and the geographic position on the island at different spatial and temporal scales. The survey will be conducted both in early spring and late autumn and will run for several years to enable analyses of the impact of season and climatic variations.
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  • Sjögren, Jörgen (författare)
  • Kan myror sprida mossor?
  • 2010
  • Ingår i: Myrinia : Föreningen Mossornas vänners tidskrift. - 1102-4194. ; 20, s. 1-6
  • Tidskriftsartikel (populärvet., debatt m.m.)abstract
    • Animal dispersal of bryophytes has gained comparatively little interest in scientific literature. During a long period of time observations of animals transporting fragments or spores have been reported in a more prosaic character. The last decades though, there has been a number of scientific studies on the topic, some of which are reviewed in this article. The overall conclusion is that animals may in fact play a role in both short and long distance dispersal of sexual and asexual propagules of bryophytes
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  • Tyler, Torbjörn (författare)
  • En dag i fält
  • 2022
  • Ingår i: Myrinia – Föreningen Mossornas Vänners tidskrift. - 1102-4194. ; 32:2, s. 66-70
  • Tidskriftsartikel (populärvet., debatt m.m.)
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  • Tyler, Torbjörn, et al. (författare)
  • Mossinventeringen av Stora alvaret 2011–2013
  • 2019
  • Ingår i: Myrinia – Föreningen Mossornas Vänners tidskrift. - 1102-4194. ; 29, s. 22-31
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)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.
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