Abstract

CESPEDES LLAVE, Ariel Ángel et al. Species richness and distribution of butterfly tribe Satyrini in the cloud rainforest of Cochabamba (Bolivian). RevActaNova. [online]. 2014, vol.6, n.3, pp.225-250. ISSN 1683-0789.

We evaluated the distribution of subtribes Pronophilina y Euptychiina butterflies (Nymphalidae: Satyrinae: Satyrini) in tropical cloud forests (Yungas) of Cochabamba. The analysis is performed based on the elevational gradient from 700 to 3 700 m high, was used 1 147 records of the tribe Satyrini butterflies. Depending on the species richness and each record we worked with 55 species of Euptychiina and 109 species of Pronophilina, we calculated measures of central tendency, subsequently performed simple regression analysis between species richness with altitude, rainfall, temperature maximum and minimum. The results show that the highest species richness of Satyrini (1 800 m) exhibit a distribution pattern hump-shaped, and whether each subtribe presents this same pattern but at different heights: Euptychiina (1 500 m) and Pronophilina (2 250 m). And regression analyzes show that elevation and precipitation have a significant effect on the hump-shaped distribution in Satyrini. This type of analysis is the key to identifying important conservation areas in mountains, and provides basic criteria and information on the causes which species concentration at certain heights.

Keywords : elevational distribution; species richness; Satyrini.

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