Diversidad polínica en el bosque siempre verde montano bajo de la cordillera occidental de Los Andes del cantón La Maná – parroquia de Guasaganda sector El Turbante.

In Ecuador, palynological studies have not been deepened to help us understand the morphological structure of the pollen grain in a natural environment, such as the one developed in the community of Quindigua in the "El Turbante" sector, located in the altitudinal floor of El Bosque Siempre Verde Montano Bajo de la Cordillera Occidental de los Andes. This area has been degraded due to deforestation, agriculture, and other anthropogenic factors. Therefore, we intend to implement the pollen study based on the science of palynology, which analyzes the role played by the pollen grain in its reproductive process and defense mechanism. The execution of the research project was carried out in three phases: the field, laboratory, and laboratory phase, with the elaboration of quantitative and qualitative lists that will allow describing the diversity indexes, pollen, and morphological characteristics. For which a total of 141 individuals of great environmental importance were recorded, being the most sensitive species and at the same time with the highest DnR the Casearia with 22.14%, while the family with the highest DmR is the MORACEAE with 27.26%, capable of storing CO2 and producing Biomass. However, the families with the highest IVI are SALICACEAE, RUBIACEAE, EUPHORBIACEAE, and FABACEAE, because they are hyperaccumulator plants. Therefore, we say that this multistratified ecosystem has a high diversity with a typical species dominance. Therefore, the morphological analysis was only performed on fertile specimens, obtaining that there are three groups of plants, Monocotyledons, Gymnosperms, and Dicotyledons, which have different symmetries due to their subprolatum and oblate spheroidal shape that differ according to their size ranging from 17.9 µm to134 µm with a more significant presence of openings in the form of round pores in the exine. Due to this type of study, we were able to identify in a photographic catalog the different species that can be used for soil recovery, afforestation, and the balance of the trophic chain that exists in the study area of the "El Turbante" sector.

• Glavni autor: Andrango Guayasamín, Sergio Javier (author)
• Format: bachelorThesis
• Jezik: spa
• Izdano: 2022
• Teme: ESPÉCIMEN FÉRTIL; DIVERSIDAD POLÍNICA; PALINOMORFOS; MEDIO AMBIENTE
• Online pristup: http://repositorio.utc.edu.ec/handle/27000/8559