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Biota colombiana

versión impresa ISSN 0124-5376

Resumen

RAMIREZ-PADILLA, Bernardo R.; SOLARTE-TELLEZ, Verónica  y  RAMIREZ-BURBANO, Paula A.. Mosses of the dry valley of Patía, southwestern Colombia: Richness, ecology and biogeography. Biota colombiana [online]. 2018, vol.19, n.2, pp.2-11. ISSN 0124-5376.  https://doi.org/10.21068/c2018.v19n02a01.

We studied the mosses that occur in the Patía River valley, in southwestern Colombia, which includes very dry tropical forest and premontane dry forest. In the altitudinal range between 550 and 1500 m a. s. l., we found 75 species of mosses (28 families and 53 genera), 34 of them acrocarpic (11 families and 23 genera) and 41 pleurocarpic (17 families and 30 genera). The families with the greatest number of species are: Bryaceae (10), Pottiaceae (9), Hypnaceae (6), Macromitriaceae (5), Brachytheciaceae (5), Entodontaceae (5), Fissidentaceae (5) and Sematophyllaceae (4). Bryum (6), Fissidens (5), Sematophyllum (4) and Entodon (3) are the best represented genera. Sixty percent of the species are found in only one type of substrate: soil (31), bark (10), organic matter (3) and rock (1); the remaining 40 % are in two or more substrates. Forest, bush, banks and water streams are the habitats preferred by the mosses. The dominant elements are extra-Andean Neotropical (35 spp.), cosmopolitan (11), widely tropical (8) and African-American (5).

Palabras clave : Bryophytes; Habitats; Life zones; Substrates.

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