Results 61 to 70 of about 1,446 (192)

Poblaciones de lombrices de tierra en sitios de acumulación de desechos orgánicos en el Valle Central de Costa Rica.

open access: yesUniciencia, 1988
Se estudió la abundancia de las lombrices de tierra en áreas del Valle Central de Costa rica, donde se acumulan excretas de animales, desechos municipales y broza de café- Se determinaron las condiciones edáficas en cada sitio.
Sandra León   +3 more
doaj  

Caracterización ecológica de las lombrices (Pontoscolex corethrurus) como bioindicadoras de suelos compactados bajo condiciones de alta humedad del suelo con diferentes coberturas vegetales (Zipacón, Cundinamarca)

open access: yesRevista Científica, 2014
Este artículo reporta los resultados de un estudio con lombrices de tierra de la especie Pontoscolex corethrurus presentes en la finca La Libertad del municipio de Zipacón (Cundinamarca) como bioindicadoras de suelos compactados por actividad ganadera ...
Martha Cecilia Gutierrez Sarmiento   +1 more
doaj  

Heavy metals (Cr and Zn) induced alterations in cast production, burrowing behaviour, surface migration and macropore formation in three ecologically different earthworm species: A comparative study [PDF]

open access: yes, 2015
Heavy metals can influence earthworm behavior and physiology which could drastically impact the soil functioning. To test this hypothesis, under laboratory conditions, the cast production and burrow systems( burrow length and patterns), macropores formed
Basha, M.P., Latha, V.
core   +1 more source

Is tagging with visual implant elastomer a reliable technique for marking earthworms? [PDF]

open access: yes, 2009
Visual implant elastomer (VIE) has recently been employed to investigate different aspects of earthworm ecology. However, a number of fundamental questions relating to the detection and positioning of the tag, its persistence and potential effects on ...
BEN HAMOU M.   +14 more
core   +1 more source

Pontoscolex corethrurus Muller 1857

open access: yes, 2015
{"references": ["MULLER, F. 1857. Lumbricus corethrurus, Burstenschwanz. Archiv fur Naturgeschichte 23: 113 - 116.", "VAN BRUGGEN, A. C. 1964. The distribution of introduced mollusc species in Southern Africa. Beaufortia, Series of Miscellaneus Publications, Zoological Museum 11 (144): 161 - 169.", "AVENDANO-YANEZ, M. L., ORTIZ-CEBALLOS 1, A.
Plisko, Jadwiga D., Nxele, Thembeka C.
openaire   +1 more source

Modifications et stabilité du phosphore échangeable d'un ferralsol ingéré par un ver géophage [PDF]

open access: yes, 1995
L'un des paramètres des cinétiques de dilution isotopique du phosphore est modifié par l'ingestion, du ferralsol étudié, par le ver géophage #Pontoscolex corethrurus$ (#Glossoscolecidae$, #Oligochaeta$). La concentation d'ions phosphate de la solution du
Brossard, Michel, Chapuis, L.
core  

PENGARUH KADAR AIR TANAH TERHADAP BIOMASSA CACING TANAH Pontoscolex corethrurus

open access: yesJournal of Biological Researches, 2014
This research was done in order to study of effect the soil humidity on earthworm Pontoscolex corethrurus biomass. 80 earthworms were placed in plastic pot (12.5 cm in diameter and 10 cm on deep) contained soil media (four individuals in each pot).
Alfiah Hayati
doaj  

Comportamento espectral de materiais de solos e de estruturas biogênicas associadas

open access: yesRevista Brasileira de Ciência do Solo, 1998
No presente estudo, verificou-se a interferência da macrofauna edáfica sobre os atributos físicos e químicos e sua relação com a reflectância espectral de um Latossolo Vermelho-Amarelo (LV), Terra Roxa Estruturada latossólica (TR) e Vertissolo (V). Esses
J. A. M. Demattê   +2 more
doaj   +1 more source

Earthworm communities in organic and conventional coffee cultivation. [PDF]

open access: yes, 2015
The objective of this work was to evaluate the effect of organic and conventional coffee crops on biomass, population density and diversity of earthworms, in Lerroville, district of Londrina County, Paraná state, Brazil.
BARTZ, M. L. C.   +6 more
core  

Earthworm Population Density in Sugarcane Cropping System Applied with Various Quality of Organic Matter [PDF]

open access: yes, 2012
Earthworms population in the soil are greatly impacted by agricultural management, yet little is known about how the quality and quantity of organic matter addition interact in sugarcane cropping system to earthworm population.
Arisoesilaningsih, E. (Endang)   +3 more
core  

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