Diferencias entre los nichos climáticos nativos y de invasión de cinco especies exóticas invasoras en Ecuador continental

Invasive alien species (IAS) are a growing threat because they are one of the main causes of biodiversity loss, altering the biogeochemical cycles, the trophic chain, generating great social and economic problems. Even these potential risks exist, in continental Ecuador there are few studies related to the modeling of ecological niches of IAS. The objective of this project was to evaluate the differences, in five exotic species, the objective of this project was to evaluate the differences, in five exotic species, where climatic niches of the species were evaluated, Cyperus esculentus L, Anthoxanthum odoratum L, Thunbergia alata Sims, Dactyloctenium aegyptium (L.) Willd, Mus musculus Linnaeus, 1758. This research was carried out by compiling records of the presence of the five IAS in the native range and invasion, 19 Worldclim bioclimatic variables were used. The native range and invasion modeling were performed with five replications and where the best model was chosen, then, the variables that contributed most to the model were selected using MaxEnt. For the comparison of climatic niches, to extract those values in km2. It was determined which are the areas of the country where the potential geographic distribution is greater. It was found that the sierra region was the most affected. It was found that the sierra region was the most affected. It was found that there was niche overlap in three IAS (Cyperus esculentus L, Thunbergia alata Sims, Dactyloctenium aegyptium (L.) Willd), which indicated that the native climatic niche is equivalent to the climatic niche of invasion. (Mus musculus Linnaeus Anthoxantium odoratum L), no niche superposition was found, this indicated that there was no equivalence of the native climatic niche with the climatic niche of invasion. With this information, an environmental management proposal for the IEE was designed. KEYWORDS: Potential geographic distribution, ecological niche modeling, invasive alien species, MaxEnt, ecological niche conservetism.

• Huvudupphovsman: Alex Adrián, Coveña Rosado (author)
• Materialtyp: bachelorThesis
• Språk: spa
• Publicerad: 2018
• Ämnen: Distribución geográfica potencial; Modelación de nicho ecológico; Especies exóticas invasoras, MaxEnt; Conservación del nicho ecológico
• Länkar: http://repositorio.uteq.edu.ec/handle/43000/3967