Summary
Pontoscolex corethrurus is a medium-sized geophagous earthworm species which has invaded most cultivated land in the humid tropics. It is generally found in gardens, cropland and fallowland, where it has been introduced accidentally by man. The species has quite narrow microclimatic requirements. Reproduction only occurs at 23°–27°C, and the worms are fully active only where soil moisture is well above field capacity (pF 2.5). This limitation is balanced by the ability to live in a great Variety of soils differing in pH, organic matter content and texture. The demographic profile is typically of the r type, which gives populations a colonization capacity greater than that of comparable native species. This can be explained by the limited size of individuals and the great efficiency of their mutualist digestion system, in association with the free soil microflora. As a result, growth is fast and a great amount of energy may be invested in reproduction, which is made even more efficient by parthenogenesis.
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References
Barois I, Lavelle P (1986) Changes in respiration rate and some physico-chemical properties of a tropical soil during transit through Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta). Soil Biol Biochem 18:539–541
Barois I, Verdier B, Kaiser P, Mariotti A, Rangel P, Lavelle P, (1987) Influence of the tropical earthworm Pontoscolex corethrurus (Glossoscolecidae) on the fixation and mineralization of nitrogen. International Symposium on Earthworms, Bologna, Italy, March 1985. Boll Zool (Roma) (in press)
Bolton DJ, Phillipson J (1976) Energy equivalents of earthworms, their egesta and a mineral soil. Pedobiologia 16:443–450
Dash MC, Patra VC (1979) Densitybiomass and energy budget of a tropical earthworm population from a grassland site in Orissa, India. Rev Ecol Biol Sol 14:461–471
Fragoso C (1985) Ecologia general de las lombrices terrestres (Oligochaeta: Annelida) de la région boca del Chajul, Selva lacandona (Chiapas, Mexico). Thesis, Universidad Autonoma de Mexico, Mexico, p 133
Gates GE (1970) On some exotic earthworms from Mexico. Rev Soc Mex Hist Nat 31:281–287
Kale RD, Krishnamoorthy RV (1980) What affects the abundance and diversity of earthworms in soil? Proc Indian Acad Sci (Anim Sci) 90:117–121
Kaplan DL, Neuhauser EF, Hartenstein R, Malecki MR (1980) Physicochemical requirements in the environment of the earthworm Eisenia fetida. Soil Biol Biochem 12:347–352
Knäper CF, Pinto Porto R (1979) Ocurrencia de Oligoquetos nos solos do Rio Grande do Sul. Acta Biol Leop 1:137–166
Lavelle P (1978) Les vers de terre de la savane de Lamto (Côte d'Ivoire): peuplements populations et fonctions dans l'ecosysteeme. Thesé Doctorat, Univ Paris VI Publ Lab Zool, Ecole Normale Supérieure, 12, p 301
Lavelle P (1979) Relations entre types écologiques et profiles démographiques chez les vers de terre de la savane de Lamto (Côte d'Ivoire). Rev Ecol Biol Sol 16:85–101
Lavelle P (1981) Strategies de reproduction chez les vers de terre. Acta Oecol [Occol Gen] 2:117–133
Lavelle P, Barois I (1987) Potential use of earthworms in tropical soils. Proceedings of the International Conference on Earth-worms and Waste in Environmental Management (in press)
Lavelle P, Maury ME, Serrano V (1981) Estudio cuantitativo de la fauna del suelo en la region de Laguna Verda, Vera-cruz. Epoca de Iluvias. Inst Ecol Publ (Mexico) 6:75–105
Lavelle P, Kanyonyo J, Rangel P (1983) Intestinal mucus production by two species of tropical earthworms: Millsonia lamtoiana (Megascolecidae) and Pontoscolex corethrurus (Glossoscolecidae) In: Lebrun P, et al (eds) New trends in soil biology. Louvainla-Neuve, pp 405–410
Lee KE (1985) Earthworms: their ecology and relationships with soils and land use. Academic Press, London
Martin A, Cortez J, Barois I, Lavelle P (1987) Le mucus intestinal des vers de terre comme moteur de leurs interactions avec la microflore. Rev Ecol Biol Sol (in press)
Pineda A, Hernandez JA (1983) Efecto de la tempera sobre el crecimiento consumo de tierra y fecundidad de la ombriz de tierra Pontoscolex corethrurus Muller, 1857 (Oligoqueto Glossoscolecidae). Thesis, Universidad Autonoma de Mexico, Mexico, p 56
Righi G (1984) Pontoscolex (Oligochaeta, Glossoscolecidae) a new evaluation. Stud Neotrop Fauna Environment 19:159–177
Rose CJ, Wood AW (1980) Some environmental factors affecting earthworm populations and sweet potato production in the Tari Basin, Papua New Guinea Highlands. Papua New Guinea Agric J 31:1–13
Senapati BK (1980) Aspects of ecophysiological studies on tropical earthworms (distribution, population dynamics, production, energetics and their role in the decomposition process). Ph D thesis, Sambalpur University, India
Swift MJ (ed) (1984) Soil biological processes and tropical soil fertility: a proposal for a collaborative programme of research. Biol Int [Special issue] 5:1–38
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Lavelle, P., Barois, I., Cruz, I. et al. Adaptive strategies of Pontoscolex corethrurus (Glossoscolecidae, Oligochaeta), a peregrine geophagous earthworm of the humid tropics. Biol Fert Soils 5, 188–194 (1987). https://doi.org/10.1007/BF00256899
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DOI: https://doi.org/10.1007/BF00256899