Seasonal abundance and sexual variation in morphometric traits of Oxelytrum discicolle (Brulle, 1840) (Coleoptera: Silphidae) in a Brazilian Atlantic Forest

Authors

  • Paulo Sérgio Fiuza Ferreira Universidade Federal de Viçosa, Museu de Entomologia, Departamento de Biologia Animal
  • Evaldo Martins Pires Universidade Federal de Viçosa, Museu de Entomologia, Departamento de Biologia Animal
  • Raul Narciso Carvalho Guedes Universidade Federal de Viçosa, Museu de Entomologia, Departamento de Biologia Animal
  • Márcio Mendes Universidade do Vale do Rio Doce (UNIVALE), Museu de História Natural
  • Lívia Aguiar Coelho Universidade do Vale do Rio Doce (UNIVALE), Museu de História Natural

Keywords:

Oxelytrum discicolle, population dynamic, sexual dimorphism, Minas Gerais

Abstract

A total of 293 specimens of Oxelytrum discicolle were sampled weekly over a period of two years using a black light trap. The study took place in an Atlantic Forest reserve located near Viçosa city, Minas Gerais State, Brazil. The period of peak abundance of O. discicolle occurred during the wet season between the months of October and March. Statistical analysis showed that the abundance of individuals was significantly and positively correlated with temperature, but not with rainfall or relative humidity. Of 28 morphological measurements taken on each collected specimen, seven were found to be sexually dimorphic; however, neither morphology nor the degree of sexual dimorphism varied significantly among seasons.
Issue Cover Vol.: 6 Num: 2

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Published

2006-01-01

How to Cite

Ferreira, P. S. F., Pires, E. M., Guedes, R. N. C., Mendes, M., & Coelho, L. A. (2006). Seasonal abundance and sexual variation in morphometric traits of Oxelytrum discicolle (Brulle, 1840) (Coleoptera: Silphidae) in a Brazilian Atlantic Forest. Biota Neotropica, 6(2). Retrieved from //www.biotaneotropica.org.br/BN/article/view/194

Issue

Vol. 6 No. 2 (2006): v6n2

Section

Articles

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