Population dynamics and adaptive strategies of Martiodrilus carimaguensis (oligochaeta, glossoscolecidae), a native species from the well-drained savannas of Colombia

Simple item page
cg.coverage.countryColombia
cg.coverage.iso3166-alpha2CO
cg.coverage.regionLatin America
cg.coverage.regionSouth America
cg.identifier.urlhttps://books.google.com.co/books/p/pub-2347935248438357?id=-uLuarMugHIC&pg=PA69en
cg.subject.ciatSOIL HEALTHen
dc.contributor.authorJiménez Jaén, J.J.en
dc.contributor.authorMoreno, Alonsoen
dc.contributor.authorLavelle, Patrick M.en
dc.contributor.authorDecaëns, Thibauden
dc.date.accessioned2015-01-28T14:17:30Zen
dc.date.available2015-01-28T14:17:30Zen
dc.identifier.urihttps://hdl.handle.net/10568/55170
dc.titlePopulation dynamics and adaptive strategies of Martiodrilus carimaguensis (oligochaeta, glossoscolecidae), a native species from the well-drained savannas of Colombiaen
dcterms.abstractMartiodrilus carimaguensis (Oligochaeta, Glossoscolecidae) is a large, anecic native earthworm species which was found in natural and disturbed savannas in the Oxisols of the Colombian Llanos. The population dynamics of this species were studied in a native savanna, and in a 17-year-old grazed grass-legume-pasture where density and biomass were higher. Monthly cast deposition on the soil surface in the improved pasture was 38.4x10 3 fresh casts/ha, 11 times greater than in the native savanna. A strong relationship was found between numbers of M. carimaguensis and numbers of fresh surface casts. Different patterns of adaptation to the dry season were observed for adults and juveniles. Adults are active for 8 months whereas juveniles enter diapause 3-4 months earlier. The vertical distribution pattern of the earthworm population also shows marked seasonal changes.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationJiménez Jaén, Juan José; Moreno, A.G.; Lavelle, Patrick; Decaëns, Thibaud. 2001. Population dynamics and adaptive strategies of Martiodrilus carimaguensis (oligochaeta, glossoscolecidae), a native species from the well-drained savannas of Colombia. In: Jiménez Jaén, Juan José; Thomas, Richard J. (eds.). Nature`s plow: Soil macroinvertebrate communities in the neotropical savannas of Colombia. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. p. 69-78. (CIAT publication no. 324)en
dcterms.extentp. 69-78en
dcterms.issued2001
dcterms.languageen
dcterms.publisherInternational Center for Tropical Agricultureen
dcterms.subjectoligochaetaen
dcterms.subjectsavannasen
dcterms.subjectpopulation dynamicsen
dcterms.subjectdinámica de la poblaciónen
dcterms.subjectsabanasen
dcterms.typeBook Chapter

Files

Collections

CIAT Book Chapters