Evaluación del riesgo de invasión de la hormiga loca sudamericana (Nylanderia fulva) (Mayr) (Hymenoptera: Formicidae) en Ecuador
Ecuador is a country that many of its economic income comes from agricultural activities. It is also known for the high floristic, faunistic and ecosystem diversity. This biodiversity and agricultural productivity are affected by biological invasions, which constitute a serious problem that causes a...
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| Format: | bachelorThesis |
| Langue: | spa |
| Publié: |
2020
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| Accès en ligne: | http://repositorio.uteq.edu.ec/handle/43000/6194 |
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Ajouter un tag | Résumé: | Ecuador is a country that many of its economic income comes from agricultural activities. It is also known for the high floristic, faunistic and ecosystem diversity. This biodiversity and agricultural productivity are affected by biological invasions, which constitute a serious problem that causes alterations to native ecosystems, biodiversity, especially endemic species and food security. The objective of the investigation was to assess the risk of invasion of the South American mad ant (Nylanderia fulva) in Ecuador. A thorough review of literature (books, articles, projects) and web portals (GBIF) was carried out to extract the species presence records with the tool Nichetoolbox. With 82 presence locations and climatic variables selected from WorldClim, according to ecology, the potential distribution of the species was modelled with the MaxEnt algorithm. Climate conditions and climate types were compared between the native and invasion range of the species and a rapid invasive assessment was carried out to identify Ecuador's risk with the entry of the species. Ecuador is a country suitable for Nylanderia fulva dispersion, as the average annual temperature ranges from 17°C to 28°C and rainfall is abundant, climatic conditions similar to the native area. The Amazon (96, 277 km2) and the coast (63, 580 km2) were the best represented areas in the 159.857 km2 of suitable climatic conditions within the potential geographical distribution. The risk of invasion of N. fulva was very high (0.7), indicating that if it is not controlled in time, it could become a potentially aggressive plague in the country and bring with it numerous effects, especially economically and ecosystem. Key words: Biological invasions, Ecological Niche Modeling, Invasive alien species |
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