ACTA BIOLÓGICA COLOMBIANA Artículo de investigación LEAF LITTER MASS LOSS RATES AND ASSOCIATED FAUNA OF TREE SPECIES COMMONLY USED IN NEOTROPICAL RIPARIAN REFORESTATION Tasas de pérdida de masa de la hojarasca y fauna asociada en especies de árboles comúnmente utilizados en la reforestación de riberas neotropicales JUAN F. BLANCO 1, Ph. D.; NATALY GUTIÉRREZ-ISAZA 2, Bióloga. 1 Instituto de Biología. Universidad de Antioquia. A.A. 1226 Medellín, Colombia.
[email protected] 2 Instituto de Biología. Universidad de Antioquia.
[email protected] Send correspondence to: Juan Felipe Blanco,
[email protected] Received 23 May 2013, first decision 13 August 2013, accepted 16 September 2013. Citation / Citar este artículo como: BLANCO JF, GUTIÉRREZ-ISAZA N. Leaf litter mass loss rates and associated fauna of tree species commonly used in neotropical riparian reforestation. Acta biol. Colomb. 2014. 19(1):91-100. ABSTRACT A signature of globalization is the prevalence of exotic trees along reforested urban and rural riparian zones in the Neotropics, but little is known about the instream processing of its leaf litter. In this study, leaf litter breakdown rates were measured during 35 days using mesh bags within a reference headwater stream for seven exotic and three native tree species commonly used in urban and rural reforestation. Artocarpus altilis , Schefflera actinophylla and Terminalia catappa scored the highest mass loss rates (>85 %; mean life: t 50 <15 d), while Cecropia sp. and Cespedesia macrophylla (mass loss =36 and 15 %; t 50 =58 and 172 d, respectively) scored the lowest rates. However, a broad range of rates was observed among the ten species studied.