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Book Chapter 2001

Autor: Jiménez Jaén, J.J. Moreno, Alonso Decaëns, Thibaud Lavelle, Patrick M. Fisher, Myles J. Thomas, Richard J.

This was especially due to the presence of a large glossoscolecid anecic species, Martiodrilus carimaguensis Jim\233nez and Moreno, which has been greatly favored by conversion of savanna to pasture. Endogeic species were dominant in the natural savanna whereas the anecic species accounted for th...

Enlace original: https://cgspace.cgiar.org/handle/10568/55169

Investigación en Agricultura
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Jiménez Jaén, J.J. ,  Moreno, Alonso ,  Decaëns, Thibaud ,  Lavelle, Patrick M. ,  Fisher, Myles J. ,  Thomas, Richard J. ,  [Earthworms communities in native savannas and man-made pastures of the Eastern plains of Colombia] ,  Earthworms communities in native savannas and man-made pastures of the Eastern plains of Colombia
Book Chapter 2001

Autor: Jiménez Jaén, J.J. Decaëns, Thibaud

The vertical distribution of native earthworm species from natural and disturbed savannas in the Oxisols of the Colombian Llanos was assessed in a native savanna and in a 17-year-old grazed grass-legume pasture during a period of 17 months. Different patterns of vertical stratification were `Obse...

Enlace original: https://cgspace.cgiar.org/handle/10568/55172

Investigación en Agricultura
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Jiménez Jaén, J.J. ,  Decaëns, Thibaud ,  [Vertical distribution of earthworms in grassland soils of the Colombian "Llanos"] ,  Vertical distribution of earthworms in grassland soils of the Colombian "Llanos"
Book Chapter 2001

Autor: Jiménez Jaén, J.J. Brown, George G. Decaëns, Thibaud Feijoo Martínez, Alexander Lavelle, Patrick M.

A detailed description and drawings of the aestivation chambers of five earthworm species are given plus a complete analysis of the mechanistic processes that determine this behavioral pattern for one anecic species from Colombia. The onset of aestivation differed in adults and juveniles for two ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55174

Investigación en Agricultura
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Jiménez Jaén, J.J. ,  Brown, George G. ,  Decaëns, Thibaud ,  Feijoo Martínez, Alexander ,  Lavelle, Patrick M. ,  [Differences in the timing of diapause and patterns of aestivation in tropical earthworms] ,  Differences in the timing of diapause and patterns of aestivation in tropical earthworms
Book Chapter 2001

Autor: Decaëns, Thibaud Galvis, JH Amézquita Collazos, Edgar

Fourteen types of physical structures produced on the soil surface by ecological engineers were sampled in the Eastern Plains of Colombia. The invertebrates creating these structures were identified. Some physical (aggregate size and stability, and bulk density) and chemical (C, N, and P contents...

Enlace original: https://cgspace.cgiar.org/handle/10568/55176

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Decaëns, Thibaud ,  Galvis, JH ,  Amézquita Collazos, Edgar ,  [Properties of the structures created by ecosystem engineers on the soil surface of a Colombian savanna] ,  Properties of the structures created by ecosystem engineers on the soil surface of a Colombian savanna
Book Chapter 2001

Autor: Decaëns, Thibaud Rossi, JP

Only a small part of the spatio-temporal structures of earthworm distribution was correlated with soil properties. Small species were more abundant in patches were soil was more compact, while large species were associated with high root biomass and total C levels. The question whether earthworm ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55180

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Decaëns, Thibaud ,  Rossi, JP ,  [Spatio-temporal structure of an earthworm community and soil heterogeneity in a tropical pasture (Carimagua, Colombia)] ,  Spatio-temporal structure of an earthworm community and soil heterogeneity in a tropical pasture (Carimagua, Colombia)
Book Chapter 2001

Autor: Decaëns, Thibaud

Earthworms are generally considered to fulfill the definition of ecosystem engineers. The casts they produce are recognised to have a great importance in the regulation of soil processes. Lifetimes and degradation rates of these structures remain poorly known. In this study, the dynamics of disap...

Enlace original: https://cgspace.cgiar.org/handle/10568/55177

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Decaëns, Thibaud ,  [Degradation dynamics of surface earthworms casts in grasslands of the Eastern plains of Colombia] ,  Degradation dynamics of surface earthworms casts in grasslands of the Eastern plains of Colombia
Book Chapter 2001

Autor: Jiménez Jaén, J.J. Cepeda, A Friesen, Dennis K. Decaëns, Thibaud Oberson, Astrid

Earthworms are considered soil ecosystem engineers that play an important role in soil organic matter dynamics and physical structure. Due to both their size and activities these organisms can accelerate the decomposition and mineralization of organic matter by reducing the size of residues to pa...

Enlace original: https://cgspace.cgiar.org/handle/10568/55178

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Jiménez Jaén, J.J. ,  Cepeda, A ,  Friesen, Dennis K. ,  Decaëns, Thibaud ,  Oberson, Astrid ,  [Phosphorus availability in casts of an anecic savanna earthworms in Colombian oxisol] ,  Phosphorus availability in casts of an anecic savanna earthworms in Colombian oxisol
Book Chapter 2007

Autor: Amézquita Collazos, Edgar Rao, Idupulapati M. Hoyos Garcés, Phanor Molina López, Diego Luis Chávez, Luis F. Bernal Riobo, Jaime Humberto
Enlace original: https://cgspace.cgiar.org/handle/10568/77827

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Amézquita Collazos, Edgar ,  Rao, Idupulapati M. ,  Hoyos Garcés, Phanor ,  Molina López, Diego Luis ,  Chávez, Luis F. ,  Bernal Riobo, Jaime Humberto ,  [Development of an arable layer: a key concept for better management of infertile tropical savanna soils] ,  Development of an arable layer: a key concept for better management of infertile tropical savanna soils
Book Chapter 2004

Autor: Singh, Bal Ram Rao, Idupulapati M. Barrios, Edmundo Amézquita Collazos, Edgar
Enlace original: https://cgspace.cgiar.org/handle/10568/77839

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Singh, Bal Ram ,  Rao, Idupulapati M. ,  Barrios, Edmundo ,  Amézquita Collazos, Edgar ,  [Potential of tillage, agropastoral, and planted fallow systems in low-fertility tropical soils in Latin America] ,  Potential of tillage, agropastoral, and planted fallow systems in low-fertility tropical soils in Latin America

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