master thesis
Ensamblaje de hormigas (Hymenoptera: Formicidae) en bosque de piedemonte Amazónico
Fecha
2019-01-21Registro en:
Cabrera Córdoba, S. (2020). Ensamblaje de hormigas (Hymenoptera: Formicidae) en bosque de piedemonte Amazónico [Tesis de Maestría]. Universidad Santo Tomás, Bucaramanga, Colombia
reponame:Repositorio Institucional Universidad Santo Tomás
instname:Universidad Santo Tomás
Autor
Cabrera Córdoba, Sandra Patricia
Institución
Resumen
In this investigation the effect of the variables soil temperature, ambient temperature and relative humidity on the assembly of ants was evaluated. In the municipality of Orito (Putumayo), in a secondary forest of Amazonian foothills and its grassland matrix, a 100 m transect was traced, locating 10 stations distanced to 10 m, in these the ants were sampled with: pitfall traps, bait corner, litter extraction and manual capture. In the habitats, the indices of diversity, wealth and equitability were calculated; T-Hutchinson and T-Student tests with diversity and wealth data, respectively; The Poisson regression analysis was done with the diversity and wealth data per month of sampling and the averages of the environmental variables in each season; The principal components analysis was carried out with the morphospecies data and the averages of the measured variables. The forest presented the highest indexes of diversity (3.8), wealth (101 species) and fairness index (0.82), because it offers ants a variety of nesting sites, a constant microclimate and greater supply of food resources. The assemblies of ants did not reflect the changes of the variables, some species respond to these patterns, so to understand the dynamics of the functioning of the ecosystems of Amazonian piedmont, it is necessary to study the biology of each species. The habitats studied, share generalist species and exclusive species, which contribute to the diversity of ants of the Amazonian piedmont, so the sites must be conserved.