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Regulation of soil organic matter dynamics and microbial activityin the drilosphere and the role of interactionswith other edaphic functional domains
Abstract The moment the soil enters into contact with an earthworm, both superficially and internally, physicochemical and biological changes take place. The drilosphere represents the whole soilExpand
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A Hierarchical Model for Decomposition in Terrestrial Ecosystems: Application to Soils of the Humid Tropics
A general model is presented in which the dynamics of decomposition in terrestrial ecosystems are determined by a set of hierarchically organized factors which regulate microbial activity atExpand
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Changes in respiration rate and some physicochemical properties of a tropical soil during transit through Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta)
Abstract Soil ingested by Pontoscolex corethrurus Muller, a geophagous tropical earthworm, was transformed considerably during passage through the digestive tract. Readily-assimilable water-solubleExpand
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Effects of earthworms on plant production in the tropics
l Departamento de Biologfa de Suelos, Instituto de Ecologfa, Xalapa, Mexico; 2Laboratoire d'Ecologie des Sols Tropicaux, IRD, Bondy, France; 31NIA, Estacion Experimental San Ramon, Yurimaguas,Expand
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Mutualism and biodiversity in soils
Most soil invertebrates and roots have developed strong interactions with micro-organisms to exploit the organic and mineral resources of soil. Micro-fauna are mainly predators of microorganismsExpand
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Transformation of the soil structure through Pontoscolex corethrurus (Oligochaeta) intestinal tract
Pontoscolex corethrurus is a geophagous tropical earthworm whose population in a Mexican pasture can ingest annually 400 Mg of dry soil ha−1. A comparative study of the soil before ingestion, the gutExpand
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Change in Land Use Alters the Diversity and Composition of Bradyrhizobium Communities and Led to the Introduction of Rhizobium etli into the Tropical Rain Forest of Los Tuxtlas (Mexico)
Nitrogen-fixing bacteria of the Bradyrhizobium genus are major symbionts of legume plants in American tropical forests, but little is known about the effects of deforestation and change in land useExpand
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Mucus production and microbial activity in the gut of two species of amynthas (megascolecidae) from cold and warm tropical climates
Abstract Amynihas gracilis inhabits warm lowlands and A. corticis tropical highlands; both are epigeic and their nutrition is largely based on soil. These species were used to test whether “theExpand
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Diversidad y rol funcional de la macrofauna edáfica en los ecosistemas tropicales mexicanos
The soil macrofauna, i.e., invertebrates visible with the naked eye that live in the soil or on its immediato surface (eg., in the litter) and/or spend an important part of their life cycle on or inExpand
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Ecology of earthworm species with large environmental tolerance and/or extended distributions
l Departamento Biologra de Suelos, Instituto de Ecologra A.c., Xalapa, Mexico; 2Laboratoire d'Ecologie des Sols Tropicaux, IRD, Bondy, France; 31nstituto de Ecologra y systematica, La Habana, Cuba;Expand
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