Relaciones entre la diversidad de aves y los sistemas agroforestales y convencionales de cacao de la parroquia el Rosario, Cantón Chaguarpamba

Small and medium farmers mainly use conventional agricultural production systems, which are characterized by the use of a wide variety of agrochemicals. These systems have a simple and homogeneous vegetation structure, with no herbaceous vegetation in the lower stratum and no trees of other species in the canopy. Therefore, it is necessary to apply techniques to mitigate the loss of fauna and flora diversity, especially the diversity of birds, since they provide important ecosystem services. In the present study, conducted in El Rosario parish, Chaguarpamba canton, where three plantations were selected for agroforestry systems and three for the conventional cocoa system, 15 counting points were established in each production system. The richness of birds was evaluated through the Margalef index. In addition, the species diversity was determined using the Shannon and Pielou indices. To compare the differences between the two strata, an analysis was carried out using the non-metric ordination technique (NMDS) and ANOSIM. The analyses determined that there is a high richness, medium diversity for the agroforestry system and medium for the conventional system, while the NMDS results determined that there is a difference in the composition of the community of species for the agroforestry and conventional cocoa systems. Thus, it is evident that the cocoa agroforestry systems contribute to the conservation of bird diversity because of their complex vegetation structure, which provides the necessary conditions to host birds. Key words: Conservation, productive systems, bird richness and abundance, tradicional cultivation.

• मुख्य लेखक: Maldonado Rojas, Andrés David (author)
• स्वरूप: bachelorThesis
• भाषा: spa
• प्रकाशित: 2023
• विषय: AVES; SISTEMAS PRODUCTIVOS; CONSERVACION
• ऑनलाइन पहुंच: https://dspace.unl.edu.ec/jspui/handle/123456789/27718