Evaluación de coleópteros como indicador ambiental en suelo en dos bosques secundarios (ESPAM MFL - Loma Seca) durante el periodo enero-abril 2019

The proposed research aimed to evaluate the beetles as environmental indicators of the soil of two secondary forests (ESPAM MFL and Loma Seca). For this purpose, the collection of beetles was carried out using the direct collection technique, which consists of searching and capturing the beetles directly from their natural habitat. The following indices were used to assess the abundance of species: Shannon-Wiener, Simpson, Margalef diversity index, and the Jaccard similarity index; different methods were also used to determine the composition, richness and abundance of the species. On the other hand, the NPK analysis was carried out in the soil to determine its fertility, among the parameters evaluated are: pH, percentage of organic matter, phosphorus, nitrogen and potassium. As a result of the relative abundance, species such as: Odontotaenius disjunctus with 291 individuals (72.56%), Rhynchophorus palmarum 42 (10.47%), Oryctes nasicornis with 29 (7.23%) and Adalia bipunctata with 37 individuals predominated. 9.22%); the rest of the captured beetle species did not exceed 20 individuals. In contrast to the most abundant species, rare species such as Acrocinus longimanus and Megadytes glaucus were found. It is important to note that, beetles bring great benefits to the soil, helping to restore nutrients, optimizing water penetration, and favoring aeration.

• Hlavní autor: Ramos Sacón, Jeniffer Johanna (author)
• Další autoři: Sánchez Darquea, Evelyn Rosalía (author)
• Médium: bachelorThesis
• Jazyk: spa
• Vydáno: 2019
• Témata: Coleópteros; Bioindicador; Bosque secundario; Fertilidad de suelo
• On-line přístup: http://repositorio.espam.edu.ec/handle/42000/1186