Faunal Activities and Soil Processes: Adaptive Strategies That Determine Ecosystem Function

Lavelle, Patrick

doi:10.1016/s0065-2504(08)60007-0

Cited by 558 publications

(350 citation statements)

References 109 publications

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“…A multitude of fauna-fauna interactions occurs in soil as can be supposed by the high diversity of soil organisms [50,82,108,122]. Considering that the two major microfaunal phyla, nematodes and protozoa, are constituted of species of various trophic levels, trophic interactions within and between protozoa and nematodes presumably are commonplace.…”

Section: Fauna-fauna Interactionsmentioning

confidence: 99%

Microbial-faunal interactions in the rhizosphere and effects on plant growth

Bonkowski

Cheng

Griffiths³

et al. 2000

European Journal of Soil Biology

178

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− Nutrient acquisition by plants occurs in an environment characterized by complex interactions between roots, micro-organisms and animals, termed the rhizosphere. Competition for mineral elements in this sphere is high. The rhizosphere processes are driven by photosynthetically fixed carbon released by roots either directly to mycorrhizal fungal symbionts or as exudates fuelling a wider spectrum of organisms, mainly bacteria. In particular, the role of the soil fauna interacting with rhizosphere micro-organisms and plant roots has so far found little attention. We present evidence that the interaction between plant roots, root exudates and micro-organisms can only be understood in relation to soil faunal activity, indicating that the soil fauna has an important function in regulating rhizosphere microbial processes and therefore significantly affects plant growth. © 2000 Éditions scientifiques et médicales Elsevier SAS rhizosphere / microbial activity / soil biota / food web interactions / plant growth

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Section: Fauna-fauna Interactionsmentioning

confidence: 99%

Microbial-faunal interactions in the rhizosphere and effects on plant growth

Bonkowski

Cheng

Griffiths³

et al. 2000

European Journal of Soil Biology

178

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“…Their activity affects water infiltration (e.g. , nutri-ent cycling (Butenschoen et al, 2009;Sheehan et al, 2006), organic matter cycling (Koutika et al, 2001), soil structure (Shipitalo and Le Bayon, 2004) and horizon texture (Lavelle, 1997;Lavelle et al, 1997). Their potential as bioindicators of landscape structure, land use and soil pollution has been well studied in many ecosystems Published in Applied Soil Ecology 59, 87-95, 2012 which should be used for any reference to this work ( Krivolutsky et al, 1982;Paoletti, 1999;Paoletti et al, 1998;Suthar et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Patterns of earthworm communities and species traits in relation to the perturbation gradient of a restored floodplain

Fournier

Samaritani

Shrestha

et al. 2012

Applied Soil Ecology

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a b s t r a c tLittle is known about the diversity and ecology of earthworms in floodplains, as well as their response to natural and anthropic perturbations (e.g. floods, river channelisation, floodplain restoration). We characterised the patterns of earthworm communities and species traits in the different habitats of a lowland restored floodplain in Switzerland. In addition to classical species-based metrics, such as species richness and Shannon diversity, species traits were used to calculate the community weighted means (CWMs) of traits and functional dispersion (FDis). We hypothesised that trait-based metrics would reveal clearer patterns than classical approaches. The distribution of earthworm traits varied among habitats in relation to changes in flooding frequency: poorly developed gravel bar soils most exposed to flooding were characterised by high abundance of small epigeic species and low abundance of large anecic species. Differences in anecic and endogeic earthworm community structure matched flood frequency. In agreement with our hypothesis, CWMs were more strongly correlated to environmental variables than species composition, diversity, or functional diversity. Based on these results, the ratio of the relative abundances of epigeic and anecic species, and the differences in species composition within anecic and endogeic ecological types of earthworms were identified as indicators of soil development in floodplains.

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“…Se calcula que el departamento de Caquetá ocupa el 33.4% del territorio nacional y de este el 31.2% (aproximadamente 2'775.000 hectárea) son pasturas dedicadas al pastoreo (PRODARAM 1979). Es importante realizar estudios que permitan detectar el efecto del manejo de los suelos destinados a la ganadería sobre la biodiversidad, pues con la pérdida de macroinvertebrados asociados al suelo se afectan los procesos de degradación y mantenimiento estructural del mismo (Lavelle 1997;Blanchart et al 1997;Chauvel et al 1999).…”

Section: Introductionunclassified

Hormigas cazadoras en sistemas productivos del piedemonte amazónico colombiano: diversidad y especies indicadoras

Sanabria-Blandón

Ulloa²

2011

Acta Amaz.

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RESUMENPara conocer la abundancia, riqueza y composición de hormigas cazadoras y su variación en los sistemas productivos del departamento de Caquetá, se seleccionaron 27 fincas representativas de tres ventanas (agroforestal, silvopastoril y tradicional), en las cuales se identificaron hasta nueve clases de usos del suelo. Las proporciones dedicadas a pastos limpios, agroforestales y rastrojos viejos, fueron las que más contribuyeron a diferenciar las ventanas. Se muestrearon cinco puntos por finca mediante cuatro métodos para captura de hormigas (TSBF, lavado de suelo con formol, escrutinio de hojarasca y búsqueda directa). De un total de 280 individuos se determinaron nueve géneros y 35 especies de las subfamilias Ectatomminae, Paraponerinae y Ponerinae; el género más diverso fue Pachycondyla con 13 especies. La abundancia de hormigas se correlacionó directamente con la riqueza de especies y con el número de especies exclusivas. La riqueza fue mayor en la ventana agroforestal (24 especies), seguida de la silvopastoril (19) y de la tradicional (8). Cinco especies fueron comunes a las tres ventanas y siete especies (Ectatomma ruidum, Hypoponera sp.1 y sp.4, Odontomachus haematodus, O. brunneus y Pachycondyla constricta) marcaron las diferencias en composición. Odontomachus brunneus resultó indicadora para la ventana tradicional y Paraponera clavata para la ventana silvopastoril. La búsqueda directa fue el método más eficiente para muestrear hormigas cazadoras en el piedemonte amazónico. PALABRAS-CLAVE: agroforestal, silvopastoril, tradicional, muestreo de hormigas, Odontomachus brunneus, Paraponera clavata, Caquetá. Hunter ants in productive systems of Colombian amazon foothills: diversity and indicator species ABSTRACTWe studied the abundance, richness and composition of hunting ants and their variation in production systems in department of Caquetá-Colombia, 27 farms were selected in three productive systems (agroforestry, silvopastoral and traditional), in this nine kinds of soil uses were identified. The proportions of clean pasture, agroforestry and old stubble contributed most to differentiating the systems. Five points were sampled per farm using four different methods for sampling ants (TSBF, formalin soil washing, screening of litter and direct search). A total of 280 organisms was collected, corresponding to nine genera and 35 species, belonging to the subfamilies Ectatomminae, Paraponerinae and Ponerinae. Pachycondyla was the most diverse genus (13 species). The abundance of ants was directly correlated with species richness and the number of exclusive species. The highest richness was observed in the agroforestry (24 species), followed by silvopastoral (19) and the lowest in traditional (8). Five species were common in the three systems and seven species marked the most differences in composition between systems (this was: Ectatomma ruidum, Hypoponera sp.1 and sp.4, Odontomachus haematodus, O. brunneus and Pachycondyla constricta). The species Odontomachus brunneus was indicator for the traditional s...

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Faunal Activities and Soil Processes: Adaptive Strategies That Determine Ecosystem Function

Cited by 558 publications

References 109 publications

Microbial-faunal interactions in the rhizosphere and effects on plant growth

Microbial-faunal interactions in the rhizosphere and effects on plant growth

Patterns of earthworm communities and species traits in relation to the perturbation gradient of a restored floodplain

Hormigas cazadoras en sistemas productivos del piedemonte amazónico colombiano: diversidad y especies indicadoras

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