Biological aspect of Deroceras reticulatum (Müllcr, 1774)(Pulmonata: Stylommatophora) in experimental conditions.
Keywords:
slugs, growth curve, longevity, survival, foliate e amage,Abstract
Crop managcment practiccs can have a deep influence on the biological community of agricultura! systcms. Conservation-tillage practices disturb thc soil only cnough to insert thc secds, and a variety of studies documcnted that conservation-tillage results in more substancial lcaf littcr and large wced community, and tend to host more diverse comrnunities of soil organisms. However, most dangerous species of slugs, as Deroceras reticulatum, are epigea! herbivores that inhabit the soil surface, and have been cited causing damages on severa) crops. Since 1997, it was found in southeast Buenos Aires province, Argentina, on sunflower under not tillage systems. An assumption of our experiment is that Deroceras populations in South America may be genetically distinct because of ditferences in climate or colonization histories. The objective of this study was to determine the growth curve, reproduction, longevity, and survival of D. reticulatum, under controlled laboratory conditions at 12 ºC and 18 ºC. The experience was initiated at each temperature with 20 recently bom slugs. lndividuals were kept in 385 cm3 plastic boxes each and food consisted of leaves of lettuce Lactuca saliva L.). The length of each slug, mortality, egg-laying, and food ea ten by each individual on the leaf of lettuce were registered weekly. Three phases of development were identified: the 1 SI one was of fast growth, the 2"d one of slower growth, and the 3'd one with absence of growth at 18ºC and scarce growth at 12 ºC. Second phase was longer at 12 ºC. At 12 ºC, eggs were observed from 3rd phase of development whereas no egg-laying was recorded at 18 ºC. Although average longevity was not significantly different in both temperatures, longevity was greater at 12 ºC with 221,2 days than at 18 ºC with 192,8 days. The survival was not significantly ditferent with both temperatures and the relanon between total longevity and average longevity was 1,48: 1 (at 12ºC) and 1,81: 1 (at 18 ºC). Considering both temperatures studied, 12ºC resulted the most appropriate temperature for development of the population. The size of D. reticulatum was related with the diameter of the perforations in .ne Jettuce leaf; individuals smaller than I cm caused a frayed on the leaves, those specimens of 1 to 3 cm long made perforations between 2 and 6 mm diameter, and those ones longer than 3 cm have done great rPrforations on the leaves.References
Abeloos, M. 1944. Rccherches expérimcntales sur la croissance. La croissance des mollusques Arionidés. Bulletin Biological. France et Belgique 78: 215-256. Bulletin Biologica. France et Belgique 78: 215-256.
Aragón, J. 1998. Manejo integrado de plagas relacionadas a la siembra directa. pp 163-175. En: Panigatti, J. L., H. Marelli, D. Buschiazzo & R. Gil (eds.), Siembra directa. Hemisferio Sur.
pp.
Barker, G. M. 1991. Biology of slugs (Agriolimacidae & Arionidae: Mollusca) in New Zealand hill country pastures. Oecologia 85: 581-595.
Barran, B. l. P., R.A. Byers & D.L. Bierlein. 1989. Conservation tillage crop establishment in relation to density ofthe field slug iDeroceras reticulatum (Muller)). BCPC Monograph 41: 93-99.
Byers, R.A. & D.D. Calvin. 1994. Economic injury levels to field com from slug (Stylommatophora: Agrolimacidae) feeding. Journal o/ Economic Entomology 87(5):1345-1350.
Clemente, N.L. 2006. Biología de Deroceras reticulatum (Mollusca: Pulmonata: Limacidae) y su manejo en el cultivo de girasol en siembra directa. Tesis de Maestría, Universidad Nacional de Mar del Plata, Facultad de Ciencias Agrarias, Argentina. 57 pp.
Dainton, B.H. 1954. The activity of slugs. l. The induction of activity by changing temperatures. Journal o/ Experimental Biology 31: 165-187.
Dmitrieva, E.F. 1969. Population dynamics, growth, feeding and reproduction offield slug (Deroceras reticulatum¡ in Leningrad Oblast. Zoologicheskii Zhurnal 48: 802-81 O.
Frank, T. l 998a. Slug damage & numbers of the slug pests, Arion lusitanicus and Deroceras re ticulatum, in oilseed rape grown beside sown wildflower strips. Agriculture, Ecosystems & Environment 67: 67- 78.
Frank, T. l 998b. The role of different slug species in damage to oilseed rape bordcring on sown
wildflowcr strips. Annals o/ Applied Biology 133: 483-493.
Heller, J.2001. Life history strategies. pp 413-445. In: Barker, G. M. (ed.) The biology o/ terrestrial mol/uses. CAB Jntemational. 558 pp.
Ilommay, G. 2002. Agriolimacidae, Arionidae and Milacidac as pests in west european sunflower and rnaize. pp. 245-254. In: Barker, G. (ed). Molluscs as crop pests. CAB lntemational, London, 450 pp.
LISEZA, 1997. Libro de Consultas Laboratorio de Investigación y Servicios de Zoología Agrícola.
Unidad Integrada, FCA, UNMdP y EEA Balcarce-lNTA.
McCracken, G.f. & P.F. Brussard. 1980. Sclf-fertilization in the white-lipped snail, Triodopsis al bo/abrís. Biological Journal ofthe Linnean Society 14: 429-434.
Panigaui, J .L. 1998. El INTA y la siembra directa. pp 25-28. En: Panigatti, J. L.. 11. Marelli, D.
Buschiazzo & R. Gil cds. Siembra directa. Hemisferio Sur. 334 pp.
Runham, N. W. & A.A. Laryea. 1968. Studics on the maturation ofthc rcproductive systern of Agrio limax reticulatus (Pulmonata Limacidae). Malacologia 7: 93-108.
Sarlangue, 11.A. 2004. Siembra directa. Visión Rural 51: 5-8.
Shibata, D.M. & C.D. Rollo. 1988. Intraspecific variation in the growth rate of gastropods: Five hypotheses. Entomologica/ Society of Canada 2(146): 199-213.
South, A. 1982. A comparison of the life cycle of Deroceras reticulatum (Müller) and Arion intermedius Nonnand (Pulmonata: Stylommatophora) at different temperatures under laboratory conditions. Journal of Molluscan Studies 48: 233-244.
South, A. 1992. Terrestrial slugs. Biology, ecology and control. Chapman & Hall, UK. 420 pp.
Vincini, A.M. 2002. Isópodos terrestres Arthropoda. Crustacea (Bicho bolita yio bicho píldora y/o cochinilla de la humedad). Material didáctico, cátedra de Zoología agrícola. UNMdP, Facultad de Ciencias Agrarias. CECAS. Balcarce, 11 pp.
Downloads
Issue
Section
License
La publicación en la RMLP se realiza bajo los términos de la licencia de uso y distribución Creative Commons BY-NC-SA 4.0 para Argentina (https://creativecommons.org/licenses/by-nc-sa/4.0/) que permite a terceros la distribución, la copia y la exhibición del artículo siempre que citen la autoría del trabajo, la publicación en la RMLP, número concreto y las páginas en la que encontraron la información. No se puede obtener ningún beneficio comercial y no se pueden realizar obras derivadas con fines comerciales que no autorice la editorial. Si se remezcla, transforma o construye sobre el material, deben distribuir sus contribuciones bajo la misma licencia que el original.
La puesta a disposición del artículo en la RMLP supone para los autores argentinos el cumplimiento de lo establecido en la Ley 26899 de Creación de Repositorios Digitales Institucionales de Acceso Abierto, Propios o Compartidos, del 13/11/2013 en su artículo 5º, en lo relativo a la obligatoriedad de facilitar en acceso abierto los resultados de investigaciones financiadas por agencias gubernamentales y de organismos nacionales de ciencia y tecnología del Sistema Nacional de Ciencia, Tecnología e Innovación.