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Bee-plant community in a xeric ecosystem in Argentina

Abstract

The bee-plant community in a xeric ecosystem in northwestern Argentina was studied concerning diversity, relative abundance, floral preference and phenology. Fifty-seven bee species were recorded, 42.1% of them endemic to arid regions of southern South America, visiting flowers of 11 plant species. The most abundant bees were Canephorula apiformis (Friese, 1908), Isomalopsis niveata (Friese, 1908) and Melectoides bellus (Jorgensen, 1912). No strictly specialist bee was observed. Some aspects of bee-flowers associations and distribution patterns are discussed.

Bee-plant interaction; Monte Province; arid ecosystem; biogeography


Bee-plant community in a xeric ecosystem in Argentina

Elen R.F. MicheletteI; João M.F. CamargoII

IUniversidade Tiradentes. Avenida Dr. José Thomas D'Avila Nabuco, 300, 49030-270 Aracaju, Sergipe, Brasil

IIDepartamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo. Avenida dos Bandeirantes 3900, 14040-901 Ribeirão Preto, São Paulo, Brasil

ABSTRACT

The bee-plant community in a xeric ecosystem in northwestern Argentina was studied concerning diversity, relative abundance, floral preference and phenology. Fifty-seven bee species were recorded, 42.1% of them endemic to arid regions of southern South America, visiting flowers of 11 plant species. The most abundant bees were Canephorula apiformis (Friese, 1908), Isomalopsis niveata (Friese, 1908) and Melectoides bellus (Jorgensen, 1912). No strictly specialist bee was observed. Some aspects of bee-flowers associations and distribution patterns are discussed.

Key words: Bee-plant interaction, Monte Province, arid ecosystem, biogeography

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ACKNOWLEDGEMENTS. We thank Pe. J. S. Moure and Silvia R. M. Pedro for identification of several bee species, F. Zanella for identification of

P. (Paracentris) lyngbyei

and Francisco Maldonado, Justo Marques and Mabel Allende of the Instituto y Museo de Ciencias Naturales de la Fac. de Cien. Exactas, Fisicas y Naturales de la UNSJ, for identification of the plants. We are very grateful to J.G. Rozen, Jr., R.W. Brooks. D.W. Roubik, S.R.M. Pedro, G.A.R. Melo, M.L. Oliveira for corrections, comments and suggestions. This research was supported by FAPESP (ERFM, proc. 96/3676-8) and CNPq (JMFC, proc. 300014/84-8 RN).

Recebido em 26.VIII.1999; aceito em 22.VIII.2000.

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Publication Dates

  • Publication in this collection
    08 May 2009
  • Date of issue
    Sept 2000

History

  • Accepted
    22 Aug 2000
  • Received
    26 Aug 1999
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