Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Life cycle and field abundance of the snail <i>Succinea costaricana</i> (Stylommatophora: Succineidae), a tropical agricultural pest
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Keywords

land snail
reproduction
life cycle
growth
quarantenary pest
population
spatial distribution

How to Cite

Villalobos M, C., Monge-Nájera, J., Barrientos, Z., & Franco, J. (1995). Life cycle and field abundance of the snail <i>Succinea costaricana</i> (Stylommatophora: Succineidae), a tropical agricultural pest. Revista De Biología Tropical, 43(1-3), 181–188. Retrieved from https://revistas.ucr.ac.cr/index.php/rbt/article/view/22427

Abstract

The neotropical terrestrial snail Succinea costaricana has become a quarantenary pest in ornamental plants (Dracaena marginata, Dracaenaceae). Specimens were collected in GuápiJes, Limón, Costa Rica, where they reached a density of 282900 individualslha. In the field, reproduction is continuous (as is rainfall) and eggs, young and copulating pairs are found mainly under moist litter. The population concentrated on plants rather than on the soil and greatly decreased after several control methods were applied. The life cycle was studied in the laboratory. The following are mean values: 7 eggs/cluster; lA mm egg diameter; 0. 25 and 0. 84 mm embryo and newborn shell length, respectively; 11 days (embryo development at 24 oC); 16 mm/min locomotion speed (young). The animals can reproduce at 12 weeks (lifespan: 44 weeks). The pigmentation pattern is defined after seven weeks.
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