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Revista de Biología Tropical
On-line version ISSN 0034-7744Print version ISSN 0034-7744
Abstract
MORENO-GAONA, Diego-A.; MORALES-PUENTES, María-E.; GIL-NOVOA, Jorge-E. and MERCADO-GOMEZ, Jorge-D.. Structure of bryophyte communities in the paramo complexes of Boyacá-Colombia. Rev. biol. trop [online]. 2023, vol.71, n.1, e53584. ISSN 0034-7744. http://dx.doi.org/10.15517/rev.biol.trop..v71i1.53584.
Introduction:
The Boyacá paramos cover 18.3 % of the Colombian surface, and are diverse in flora and fauna, moreover, have a high temperature, topography, and habitats, which allow these ecosystems to be centers of diversity in the Neotropics, and therefore they harbor a high diversity of bryophytes.
Objectives:
Analyze the structure and composition of the bryophyte communities of the paramos in the Boyacá complexes.
Methods:
Using literature, databases and herbariums records, the floristic composition, and the completeness of the sampling for the paramo and substrate complexes was evaluated.
Results:
We analyzed 5 132 specimens, with 343 species of mosses being the most diverse group, 256 liverworts and two hornworts. The sampling completeness analysis is 98 % representative. In addition, we found that the preference of substrates is terrestrial with 409 species and corticolous with 341. Alpha diversity of order 0D showed that Tota-Bijagual-Mamapacha (TBM) is the most diverse complex with 368 species, and Pisba (124) the least diverse; the 1D index showed that the complex (TBM) presented 178 species considered common, and the dominance of species (2D) was higher in the Iguaque-Merchán Complex with 119 dominant taxa and Guantiva-La Russia (105) and TBM (105) to a lesser number. (102).
Conclusions:
the analysis of beta diversity showed that 62 % of the dissimilarity in the composition of species between the complexes is due to the species turnover, the same happens with the divergence by substrates that is 51 %. Bryophytes in the Boyacá paramos represent 36.05 % of Colombian diversity, and 2.96 % worldwide.
Keywords : completeness; corticolous; diversity; species turnover..