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Fauna composition of water
beetles (Coleoptera: Adephaga)
in seven water environments in the municipality of Gramado, RS, Brazil
BENETTI1,
C.J. & RÉGIL CUETO2 , J.A.
1
Departamento de Ecología y Biología Animal, Facultad de Ciencias,
Universidad de Vigo, 36201 - Vigo, Espanha -
cjbenetti@uvigo.es
2
Departamento de Biología Animal, Facultad de Biología, Universidad de
León, 24071 - León, Espanha
ABSTRACT:
The
collections were made from December 1998 to December 1999 in 106
sampling points of seven different environments
(wetlands, ponds, pools, reservoirs, temporary wetlands, streams and
rivers)
in the municipality of Gramado, Rio Grande do Sul State, Brazil. A total
of 7,235 specimens of beetles were collected, belonging to 73 species
distributed among the Dytiscidae, Gyrinidae, Haliplidae and Noteridae
(Hydradephaga). The most suitable environments for the
fauna were wetlands, ponds and temporary wetlands. Fauna in streams and
rivers were reduced and quite distinct from those found in other
environments. Most species were rarely or occasionally present, and in
most cases the dominant species were the most abundant and frequent in
all environments.
Key-words:
fauna composition, water beetles, Hydradephaga, Brazil. |
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