Litter breakdown and invertebrate association with three types of leaves in a temperate rainforest stream

Richardson, John S.; Shaughnessy, Christel R.; Harrison, Paul G.

doi:10.1127/0003-9136/2004/0159-0309

Cited by 80 publications

(70 citation statements)

References 33 publications

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“…Evidence from other studies has indicated similar rankings of litter quality by species [6,7]. Elevated CO2 tended to reduce litter quality in general, although this effect was marked for N and C:N only.…”

Section: Discussionmentioning

confidence: 71%

See 1 more Smart Citation

Elevated CO2 and Tree Species Affect Microbial Activity and Associated Aggregate Stability in Soil Amended with Litter

Al-Maliki

Jones

Godbold

et al. 2017

Forests

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(1) Elevated atmospheric CO 2 (eCO 2 ) may affect organic inputs to woodland soils with potential consequences for C dynamics and associated aggregation; (2) The Bangor Free Air Concentration Enrichment experiment compared ambient (330 ppmv) and elevated (550 ppmv) CO 2 regimes over four growing seasons (2005)(2006)(2007)(2008) under Alnus glutinosa, Betula pendula and Fagus sylvatica. Litter from the experiment (autumn 2008) and Lumbricus terrestris were added to mesocosm soils. Microbial properties and aggregate stability were investigated in soil and earthworm casts. Soils taken from the field experiment in spring 2009 were also investigated; (3) eCO 2 litter had lower N and higher C:N ratios. F. sylvatica and B. pendula litter had lower N and P than A. glutinosa; F. sylvatica had higher cellulose. In mesocosms, eCO 2 litter decreased respiration, mineralization constant (respired C:total organic C) and soluble carbon in soil but not earthworm casts; microbial-C and fungal hyphal length differed by species (A. glutinosa = B. pendula > F. sylvatica) not CO 2 regime. eCO 2 increased respiration in field aggregates but increased stability only under F. sylvatica; (4) Lower litter quality under eCO 2 may restrict its initial decomposition, affecting C stabilization in aggregates. Later resistant materials may support microbial activity and increase aggregate stability. In woodland, C and soil aggregation dynamics may alter under eCO 2 , but outcomes may be influenced by tree species and earthworm activity.

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Section: Discussionmentioning

confidence: 71%

“…Litter quality is affected by intrinsic species characteristics. Thus, the nitrogen concentration of A. glutinosa leaves may be twice that of western red cedar and western hemlock [6]. Concentrations of N are low and C:N ratios are high in beech (Fagus sylvatica) compared to oak (Quercus robur) leaves [7].…”

Section: Introductionmentioning

confidence: 99%

Elevated CO2 and Tree Species Affect Microbial Activity and Associated Aggregate Stability in Soil Amended with Litter

Al-Maliki

Jones

Godbold

et al. 2017

Forests

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“…Loss of riparian conifers increases light availability and temperature variation in forested stream ecosystems (Ellison et al 2005). These losses probably will lead to greater autochthony and increased breakdown rates if conifers are replaced by deciduous tree species because deciduous litter is of higher quality (Richardson et al 2004).…”

Section: Biodiversity Driversmentioning

confidence: 99%

Conservation from the bottom up: forecasting effects of global change on dynamics of organic matter and management needs for river networks

Kominoski

Rosemond

2012

Freshwater Science

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“…pH, temperature, water regime) and structural components of the leaf itself, such as lignin, cellulose, cutin and tannins (Richardson et al 2004;Swan & Palmer 2004;Graça & Cressa 2010). That is why any change in the type of vegetation that is incorporated into the water component of the forested wetlands would impact signifi cantly on the functioning of the system, affecting the capacity of processing this material (Graça & Canhoto 2006).…”

Section: Introductionmentioning

confidence: 99%

Leaf litter decomposition from native and non-native species in a freshwater forested wetland of Chile

Gómez-Capponi

Correa‐Araneda²,

Díaz³

et al. 2017

Gayana (Concepc.)

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Decomposition of leaf litter is a fundamental process for the functioning of forested wetlands. The rapid increment of forest plantations has involved a greater contribution of leaf litter of exotic origin to these ecosystems. The decomposition rate between leaf litter of native and exotic origin in a forested wetland of the Mediterranean zone of Chile was compared, as well as the contribution of bacteria and macroinvertebrate to this process. It was determined that the decomposition rate of the leaf litter presented signifi cant differences (p < 0.05) between species, being faster in those of non-native origin. This could be due to differences in ecophysiological aspects of the leaves like the presence of chemical compounds such as waxes or oils. Both analyzed communities were relevant in the studied process. However, bacteria contributed mostly to the decomposition of both types of leaves. The implications of the physical and chemical characteristics of the leaves and the water on the processing of the foliar material are discussed. KEYWORDS:Allochthonous detritus, bacteria, lentic ecosystem, macroinvertebrates. RESUMENEn los humedales boscosos, la descomposición de la hojarasca es un proceso fundamental para su funcionamiento. El rápido incremento de las plantaciones forestales ha implicado un mayor aporte de hojarasca de origen exótico a estos ecosistemas. Se comparó la tasa de descomposición entre hojarasca de origen nativo y exótico en un humedal boscoso de la zona Mediterránea de Chile, así como la contribución de las bacterias y macroinvertebrados a este proceso. Se determinó que la tasa de descomposición de la hojarasca presentó diferencias signifi cativas entre las diferentes especies (p < 0,05), siendo más rápido en especies de origen exótico. Esto podría ser dado por diferencias en algunos aspectos ecofi siológicos de las hojas como la presencia de compuestos químicos tales como ceras o aceites. Ambas comunidades analizadas fueron relevantes en el proceso estudiado. Sin embargo, las bacterias contribuyeron mayormente a la descomposición de ambos tipos de hojas. Se discuten las implicaciones de las características físicas y químicas de las hojas y el agua en el procesamiento del material foliar.

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Litter breakdown and invertebrate association with three types of leaves in a temperate rainforest stream

Cited by 80 publications

References 33 publications

Elevated CO2 and Tree Species Affect Microbial Activity and Associated Aggregate Stability in Soil Amended with Litter

Elevated CO2 and Tree Species Affect Microbial Activity and Associated Aggregate Stability in Soil Amended with Litter

Conservation from the bottom up: forecasting effects of global change on dynamics of organic matter and management needs for river networks

Leaf litter decomposition from native and non-native species in a freshwater forested wetland of Chile

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