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ESPÉCIE INVASORA EM RESERVAS NATURAIS: CARACTERIZAÇÃO DA POPULAÇÃO DE ACHATINA FULICA BOWDICH, 1822 (MOLLUSCA – ACHATINIDAE) NA ILHA RASA, GUARAQUEÇABA, PARANÁ, BRASIL.
Marta Luciane Fischer1 & Eduardo Colley2

Biota Neotropica v5(n1) – http://www.biotaneotropica.org.br/v5n1/pt/abstract?article+BN03305012005

Recebido em 13/10/04 Recebida em 31/01/05 Publicado em 07/03/05

Pontifícia Universidade Católica do Paraná – Núcleo de Estudos do Comportamento Animal. Rua Imaculada Conceição, 1155 CEP 80215-901. Curitiba/PR. E-mail: [e-mail]; [e-mail] 2 Graduando do Curso de Biologia PUCPR – Núcleo de Estudos do Comportamento Animal. Bolsita PIBIC/PUCPR E-mail: [e-mail]
1

Abstract
The African snail Achatina fulica is one of the 100 most harmfull invasive alien species, causing serious damages mainly in islands. We had as objective to characterize the population of A. fulica in Ilha Rasa, Guaraqueçaba, Paraná, Brazil. Seasonal and diurnal collections of A. fulica and associated fauna were driven in the border and interior forest, sandbank, swamp and urban area of Almeida and Ilha Rasa communities. We collected 959 snails, with an average of 66.4 animals for inspected place, being considered that there is around 9,000 snails in the island. However the frequency of the animals was conditioned the time of the year, size of the animal and community. The small and recent population of A. fulica associated to the anthropic environment demands an urgent and effective plan of eradication avoiding its establishment and the dispersion for the wild areas. Key words: Giant african snail, island ecology, biologic invasion, Atlantic forest

Resumo
O caramujo africano Achatina fulica é uma das cem espécies invasoras do mundo, causando sérios danos principalmente em ilhas. Objetivou-se caracterizar a população de A. fulica na Ilha Rasa, Guaraqueçaba, PR, Brasil. Coletas sazonais diurnas da A. fulica e fauna associada foram