Resumo

HIDALGO-GATO, Marta M.; RODRIGUEZ-LEON, Rosanna; RICARDO, Nancy E.  e  FERRAS, Hermen. Dinámica poblacional de cicadélidos (Homoptera: Cicadellidae) en un agroecosistema cañero de Cuba. Rev. biol. trop [online]. 1999, vol.47, n.3, pp.503-512. ISSN 0034-7744.

Twenty three species of leafhoppers were found in a sugar cane crop in San Pedro, Havana province, Cuba. Balclutha rufofasciata (Merino) and Tylocygus geometricus (Signoret) were new records for the crop. The samples were collected monthly from 1991- 1994 with entomological net. The most abundant and frequent species was B. guajanae (De Long) (1 920 ind/ha) in the crop and Hortensia similis Walk (18 960 ind/ha) in the surrounding vegetation. Population dynamics was determined for each species. The surrounding vegetation was represented by Rottboellia cocninchinensis (Lourd. Clayton), Echinochloa colona (L.) Link, Chamaesyce hyssopifolia (L.) Small y Euphorbia heterophylla L. The sugar cane showed the highest spatial organization, diversity (0.61) and evennes (0.25). The surrounding vegetation had the highest species dominance.

Palavras-chave : Leafhoppers; sugar cane; ecological indexes; diversity; agroecosystems; population dynamics.