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dc.contributor.authorJiménez, Juan J.-
dc.contributor.authorMamolar, Estefanía-
dc.contributor.authorLavelle, Patrick-
dc.date.accessioned2014-10-08T10:47:39Z-
dc.date.available2014-10-08T10:47:39Z-
dc.date.issued2000-01-
dc.identifier.citationEuropean Journal of Soil Biology 36(1): 45-50 (2000)es_ES
dc.identifier.issn1164-5563-
dc.identifier.urihttp://hdl.handle.net/10261/103038-
dc.description15 páginas, 1 tabla, 2 figurases_ES
dc.description.abstractDigging and hand-sorting of soil blocks is a very widespread method in the study of earthworm communities. One disadvantage of this method is that it is very time consuming and often many earthworms are incomplete because they were cut by the digging tools. When authors report earthworm biomass, no mention is made of the assessment of any relationship between the mass of those cut earthworms and their overall weight. In such cases, biomass is generally underestimated. In this paper, our objective was to propose a new method to estimate the weight of incomplete earthworms on the basis of preclitellar diameter and its usefulness for studying the dynamics of earthworm populations. Complete earthworms were collected from samplings performed in native savannahs and man-made pastures of the eastern plains of Colombia and from a poplar grove (Populus sp.) in Central Spain. A strong correlation between the preserved fresh weight and the maximum preclitellar diameter was found for all the species studied. Three types of models have provided a convenient method to estimate earthworm biomass: (i) linear for almost all the species; (ii) exponential for a large Neotropical anecic species, Martiodrilus carimaguensis (Glossoscolecidae); and (iii) second degree polynomic equation.es_ES
dc.description.sponsorshipThis study was included within the STD-3 European Macrofauna Project (No. ts3*ct920128) and the Tropical Lowlands Program at the International Center for Tropical Agriculture, CIAT (Cali, Colombia). This study was supported partly by a research grant obtained by the first author within the Macrofauna programme. E. Mamolar received a one-year scholarship from ‘Fundación CajaMadrid’ (Spain). The first author deeply thanks Thibaud Decaëns, from the ‘Université de Rouen’ (France) for his criticism in a first version of the manuscript and two anonymous referees for their helpful comments.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccesses_ES
dc.subjectearthwormses_ES
dc.subjectoligochaetaes_ES
dc.subjectbiomasses_ES
dc.subjectregressiones_ES
dc.subjectpopulation ecologyes_ES
dc.titleBiometric relationships in earthworms (Oligochaeta)es_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/S1164-5563(00)01047-5-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/S1164-5563(00)01047-5es_ES
dc.identifier.e-issn1778-3615-
dc.relation.csicNoes_ES
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