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https://hdl.handle.net/10316/8314
Título: | Decomposition of Fire Exposed Eucalyptus Leaves in a Portuguese Lowland Stream | Autor: | Gama, Mafalda Gonçalves, Ana Lúcia Ferreira, Verónica Graça, Manuel A. S. Canhoto, Cristina |
Data: | 2007 | Citação: | International Review of Hydrobiology. 92:3 (2007) 229-241 | Resumo: | We compared fire exposed with normal abscised eucalyptus leaves incubated in a stream running through eucalyptus plantations in central Portugal, in terms of breakdown rates, microbial activity, diversity and macroinvertebrate abundance. Although leaves exposed to fire had lower nutritional value, mass loss was similar for both leaf types (k = 0.0089-0.0095 d-1 for fire and k = 0.0084-0.00103 d-1 for normal leaves). Fungal biomass was similar among treatments, whereas sporulation and microbial respiration were lower in fire exposed leaves. Both leaf types had similar aquatic hyphomycetes communities. Physical fragmentation was important in fire exposed leaves breakdown. Invertebrates colonized leaves in low numbers in both treatments. Alteration of leaf litter quality determined by fires in streams does not seem to determine changes in ecosystem functioning in a short term. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) | URI: | https://hdl.handle.net/10316/8314 | DOI: | 10.1002/iroh.200610916 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
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