Dispersal of Bryophytes and Ferns is Facilitated by Small Mammals in the Boreal Forest

  title={Dispersal of Bryophytes and Ferns is Facilitated by Small Mammals in the Boreal Forest},
  author={Marion Barb{\'e} and {\'E}milie E. Chavel and Nicole J. Fenton and Louis Imbeau and Marc J. Mazerolle and Pierre Drapeau and Yves Bergeron},
  pages={67 - 76}
ABSTRACT Bryophytes and pteridophytes are important contributors to ecosystem services in boreal regions. Abiotic agents are considered their main dispersers, but recent studies suggest that biotic agents including invertebrates, birds and large mammals might also be efficient dispersal agents. Dispersal of cryptogams by ground-dwelling small mammals is often assumed to occur, but has yet to be demonstrated. In this study, we present the first evidence of boreal cryptogam species being… 
Forest passerines as a novel dispersal vector of viable bryophyte propagules
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Bryophyte dispersal by sheep on dry grassland
It is concluded that sheep are important dispersal vectors with the potential of long-range dispersal for bryophytes, especially for species without sexual reproduction, and that epizoochorous dispersal of microscopic diaspores might be underestimated in its importance so far.
No increase in colonization rate of boreal bryophytes close to propagule sources.
The recolonization pattern of boreal forest bryophytes was investigated in stands that had been clear-cut approximately 50 years ago, finding most species had started to recolonize the young stands, but without any tendency of a higher colonization rate close to the mature stands.
Fern and bryophyte endozoochory by slugs
New ecological perspectives are opened suggesting that fern and bryophyte endozoochory by gastropods is a so-far-overlooked mode of dispersal, which might increase local population sizes of these taxa by spore deposition on suitable substrates.
Limitation of distribution of two rare ferns in fragmented landscape
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It is suggested that dormancy in bryophyte propagules is less rare than had hitherto been assumed due mainly to the relatively small number of investigations of species living in habitats with periodically unfavourable moisture and temperature conditions.
Epizoochorous dispersal of bryophyte stem fragments by roe deer (Capreolus capreolus) and wild boar (Sus scrofa)
Epizoochorous transport of unspecialized gametophyte fragments may play a significant, but so far under-estimated role in the dispersal of bryophyte species, especially those without specialized asexual propagules and with rare sexual reproduction.
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In A. hellerianum, the combination of occasional spore production and practically continuous, massive gemma production facilitates dispersal both on local scale and over long distances, thus allowing considerable gene flow at the landscape level.
Post-fire bryophyte establishment in a continental bog
Environmental conditions and species life history strategy are more important than diaspore availability for post-fire colonization, and true mosses appear to facilitate Sphagnum colonization.
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There seems to be a trade-off between growth and sexual reproduction, but not asexual, in the epiphyte metacommunity, which is structured by two main trade-offs: dispersal distance vs. reproductive age and sensitivity to habitat quality.