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vol.32 issue1COMPARISON OF DIET AND USE OF BROMELIADS BETWEEN A BROMELICOLOUS AND A BROMELIGENOUS ANURAN AT AN INSELBERG IN THE SOUTHEASTERN OF BRAZILBeta Diversity in Neotropical Mountain Forests author indexsubject indexarticles search
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Caldasia

Print version ISSN 0366-5232

Abstract

HIGUERA, DIEGO  and  WOLF, JAN H.D.. VASCULAR EPIPHYTES IN DRY OAK FORESTS SHOW RESILIENCE TO ANTHROPOGENIC DISTURBANCE, CORDILLERA ORIENTAL, COLOMBIA. Caldasia [online]. 2010, vol.32, n.1, pp.161-174. ISSN 0366-5232.

We compared the richness and biomass of vascular epiphytes in six seasonally semi-deciduous oak (Quercus humboldtii) forest fragments of varying structure, using the SVERA protocol. Bromeliads dominated epiphytic vegetation in terms of richness, 10 out of a total of 17 species, and biomass (98%), but overall epiphyte community development was poor in comparison with neotropical wet mountain forests. Epiphyte richness and biomass was similar in all fragments, except one bottom-valley fragment, despite large differences in anthropogenic-induced forest structure. We hypothesize that epiphyte resilience to disturbance in these dry oak forest fragments is due to tolerance of the local epiphyte species to desiccation, overriding micro-climatic differences between forest fragments of different structure.

Keywords : Bromeliaceae; deforestation; forest canopy; fragmentation; secondary tropical forest; SVERA; tropical montane forest.

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