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Abstract:

In Ecuador it is necessary to increase studies on biodiversity issues, especially in the lesser known, such as insects. The purpose of this study is to know the richness, abundance and functional groups of ants in the cloud forests of the Reserva Arcoiris and El Madrigal. By means of the Protocol All 19 species of ants included in 15 genera were collected. Myrmicinae was the subfamily with greater amount of species and genera, followed by the subfamily Ponerinae. The estimators ICE, Chao2 and Jacknife 2 assessed collection completeness as 91, 2% for Arcoiris and 63, 1% for El Madrigal. An intermediate diversity (Shannon) and low species dominance (Simpson) were recorded for both sites. In Arcoiris and El Madrigal 11 and 12 species of ants were respectively collected, of which 4 are shared but 79% of the species are found only in one site and 68% are considered rare. The species composition was dissimilar at both sites, with 0.3 being the Sørensen similarity coefficient and 0, 75 being the complementarity dissimilarity. In the functional groups the most numerous guilds were nomadic (El Madrigal) and omnivorous (Arcoiris). Two unregistered species were captured in Ecuador, one not recorded since the 1930s and three new species for science.

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