Biogeografia dos moluscos exóticos em Erechim-RS

Abstract

The present work consists of a bibliographic review and the intention to understand how the environment influences the spread of invasive exotic molluscs in the city of Erechim, state of Rio Grande do Sul. we can easily find in this spatial and temporal cut of twelve months in the year 2020, which was determined for the study, it becomes possible to work with themes that are from Biogeography: distribution factors, the concept of species invasion and even the impact of the introduction of a new species, characteristics of the new habitat and ways of adaptation. Through the identification and on-site monitoring of the mollusk, the results point to Helix aspersa, being the only species identified in the study area. The physical aspects of the environment, such as the subtropical climate, influence its propagation, with emphasis on the elements temperature and humidity, as well as vegetation. Since this species of snail is harmful to vegetable gardens and green areas, and also harmful to the ecosystem, as there is no predator, being an invasive species, it is concluded that the Helix aspersa mollusc is in the process of adapting to the area of study.