Abstract

SULCA GARRO, Lidia A.. Distribution of rogadinae (hymenoptera: braconidae) in an altitudinal gradient in the southern peruvian andes. Ecol. apl. [online]. 2013, vol.12, n.2, pp.141-145. ISSN 1726-2216.

We studied the altitudinal variation in richness, diversity and community structure of parasitoid wasps of the Rogadinae subfamily (Hymenoptera: Braconidae), along an elevational gradient in the Cosñipata valley (Cuzco, Peru). We selected four open field collecting localities at several elevations from 800 to 2800 m: Tono (800 m), San Pedro (1500 m), Rocotal (2000 m) and Wayquecha (2800 m). We carried out five collections using Malaise traps. We captured a total of 351 individuals: 109 morphospecies in 5 genera (Aleiodes, Cystomastax, Clinocentrus, Triraphis and Stiropius). San Pedro (1500m) presented the highest diversity level, according to the Shannon-Wiener index (H), followed by Tono, Rocotal and Wayquecha (H: 3.894, 3.062, 2.989, 2.653 respectively). The Bray Curtis similarity index showed the greatest similarity between San Pedro and Rocotal (0.29). Species composition was positively correlated with elevation.

Keywords : Diversity; cloud forest; parasitoid wasps; Cosñipata valley.

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