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No. de sistema: 000059475

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 190823m20199999mx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| u-at---
044 _ _ a| xx
100 1 _ a| Wootton, Allen
245 1 0 a| Patterns of flow, leaf litter and shredder abundance in a tropical stream
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| The seasonal dynamics of leaf litter and associated consumers (“shredders”) in tropical streams are not well documented. We investigated the occurrence of litter (density and age composition) and shredders through late dry, wet and early dry seasons in an Australian rainforest stream. Leaf litter packs of varying density and leaf age covered most of the stream bed in the late dry season, but a one-in-one-year flood removed a substantial proportion of the sparse packs and much of the intermediate-aged litter, with green litter becoming more prevalent. Shredder abundances declined accordingly, but recovery was rapid, demonstrating substantial resilience to the disturbance. In a 36-day field experiment using fine- and coarse-mesh bags, green litter was decomposed more rapidly than intermediate and aged litter by both microbes and shredders, an unexpected and important result, given the abundance of green litter in the study stream. The resilience of shredders to moderate flood, their ability to process green leaves and their continued presence across seasons contribute to seasonal consistency in detrital-based food webs in the study stream except, perhaps, after extreme floods. This study demonstrates the need to consider the temporal changes in litter composition and decomposition in determining the nature of trophic processes in streams.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Descomposición de la hojarasca forestal
650 _ 4 a| Invertebrados
650 _ 4 a| Inundaciones
650 _ 4 a| Resiliencia ecológica
651 _ 4 a| Australia
700 1 _ a| Pearson, Richard G.
e| coaut.
700 1 _ a| Boyero, Luz
e| coaut.
773 0 _
t| Hydrobiologia
g| Vol. 826, no. 1 (January 2019), p. 353-365
x| 1573-5117
900 _ _ a| Solicítelo con su bibliotecario/a
902 _ _ a| BG / MM
904 _ _ a| Agosto 2019
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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*Solicítelo con su bibliotecario/a
Patterns of flow, leaf litter and shredder abundance in a tropical stream
Wootton, Allen (autor)
Pearson, Richard G. (autor)
Boyero, Luz (autor)
Nota: Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Hydrobiologia. Vol. 826, no. 1 (January 2019), p. 353-365. ISSN: 1573-5117
No. de sistema: 59475
Tipo: Artículo
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Inglés

"The seasonal dynamics of leaf litter and associated consumers (“shredders”) in tropical streams are not well documented. We investigated the occurrence of litter (density and age composition) and shredders through late dry, wet and early dry seasons in an Australian rainforest stream. Leaf litter packs of varying density and leaf age covered most of the stream bed in the late dry season, but a one-in-one-year flood removed a substantial proportion of the sparse packs and much of the intermediate-aged litter, with green litter becoming more prevalent. Shredder abundances declined accordingly, but recovery was rapid, demonstrating substantial resilience to the disturbance. In a 36-day field experiment using fine- and coarse-mesh bags, green litter was decomposed more rapidly than intermediate and aged litter by both microbes and shredders, an unexpected and important result, given the abundance of green litter in the study stream. The resilience of shredders to moderate flood, their ability to process green leaves and their continued presence across seasons contribute to seasonal consistency in detrital-based food webs in the study stream except, perhaps, after extreme floods. This study demonstrates the need to consider the temporal changes in litter composition and decomposition in determining the nature of trophic processes in streams."


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