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Browsing by Author "Figueiredo, Helena"

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  • Contribution to the knowledge of the Coccinellidae (Insecta: Coleoptera) fauna from the Azores islands.
    Publication . Soares, António O.; Elias, Rui B.; Resendes, Roberto; Figueiredo, Helena
    An updated list of the Coccinellidae species of the Azores archipelago is presented. New records for S. Miguel: Nephus (Sidis) hiekei; Sta. Maria: Rodolia cardinalis; S. Jorge: Stethorus punctilium, Clitosthetus arcuatus, Scymnus nubilus, N. (Sidis) hiekei; Pico: R. cardinalis; Graciosa: C. arcuatus, S. (Scymnus) interruptus, N. (Sidis) hiekei, Lindorus lophantae and R. cardinalis; Corvo: S. nubilus, N. (Sidis) hiekei and Coccinella undecimpunctata. Regressions of species richness against area of the islands and distance from the nearest mainland were performed. No statistical significant correlation between species richness against area was found but a statistical significant negative correlation between the number of species and the distance from the nearest mainland was obtained. The results are, in part, in accordance with the predictions of MACARTHUR & WILSON’S (1967) equilibrium theory of island biogeography, relating differences in the diversity within Azorean islands with isolation.
    2003Journal article Open access Show more
  • New records of Coccinellidae (Coleoptera) to the Azores islands
    Publication . Soares, António O.; Borges, Isabel; Cabral, Susana; Figueiredo, Helena; Resendes, Roberto
    In order to record new Coccinellidae species to the Azores, forty one samplings were made in S. Miguel, Graciosa and Pico islands. Graciosa and Pico islands surveys were performed during the scientific expeditions organised by the Department of Biology from the University of the Azores, between the 7th and 15th of June, 2004 and the 6th and 15th of June, 2005, respectively. A total of eleven species were collected. The presence of two new species was noticed: one Scymnini species to Pico island, Clitosthetus arcuatus (Rossi) and one Coccinellini species to S. Miguel island, Myrrha octodecimguttata (Linnaeus).
    2006-06Report Open access Show more