ED013. Diversity of Tydeidae foliar mites in the Amazonian provinces of Sucumbíos, Napo, and Orellana
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Abstract
The lack of studies on the determination, endemism, and potentiality of the families of the foliar acarofauna in Ecuador, was the main reason for carrying out this research, which focused on evaluating the diversity of tydeid species in the northwestern region. Amazon, systematically sampling five localities distributed throughout the provinces of Napo, Sucumbíos, and Orellana, where leaves from the middle and upper third of five cultivated plant species and five wild plant species available in the environment were collected, so that each species belonged to a different botanical family. A total of 17 taxa of tydeid mites were identified (13 species already registered for Ecuador, two new species and two morphospecies), among which were found phytophagous, mycophagous, saprophytic species, one generalist species and 11 with undefined feeding habits. The diversity values obtained based on the abundance, richness and diversity indices in cultivated and wild flora indicate that there was greater diversity in wild plant species and in mature leaves, which can be attributed to the particular ecological requirements of each species such as: availability of food, type of host, competition and predation. It is essential to carry out new ecological studies that allow a better understanding of the processes that occur between these mites and their habitats, in addition to increasing long-term studies to observe the dynamics of change in the composition of the communities in response to anthropogenic alterations.
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