Leaf litter breakdown rates and associated fauna of native and exotic trees used in neotropical riparia reforestation Reportar como inadecuado




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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 andgt;85 %; mean life: t50 85 %; vida media: t50

Tipo de documento: Artículo - Article

Información adicional: La aceptación de manuscritos por parte de la revista implicará, además de su edición electrónica de acceso abierto bajo licencia Creative Commons CC Atribución-NoComercial-CompartirDerivadasIgual 3.0 http:-creativecommons.org-licenses-by-nc-sa-3.0-es-deed.es AR, la inclusión y difusión del texto completo a través del repositorio institucional  de la Universidad Nacional de Colombia y en todas aquellas bases de datos especializadas que el editor considere adecuadas para su indización con miras a incrementar la visibilidad de la revista.

Palabras clave: Ciencias biologicas, Ecología lótica, leaf litter mass loss rates, leaf quality, macroinvertebrates, exotic trees, riparian reforestation.





Fuente: http://www.bdigital.unal.edu.co


Introducción



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.
BLANCO1, Ph.
D.; NATALY GUTIÉRREZ-ISAZA2, Bióloga. 1 Instituto de Biología.
Universidad de Antioquia.
A.A.
1226 Medellín, Colombia.
blanco@exactas.udea.edu.co 2 Instituto de Biología.
Universidad de Antioquia.
ngutierrez@ecosur.edu.mx Send correspondence to: Juan Felipe Blanco, blanco@exactas.udea.edu.co 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: t50 15 d), while Cecropia sp.
and Cespedesia macrophylla (mass loss =36 and 15 %; t50 =58 and 172 d, respectively) scored the lowest rates.
However, a broad range of rates was observed among the ten species studied.
The carbon to phosphorus ratio (C:P) and toughness of the leaf litter were the best predictors of breakdown rates.
However, these leaf properties were not correlated with the very low values of macroinvertebrates abundance and diversity, and the few morphs classified as shredders....






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