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1 November 2004 Diversity and Seasonal Activity of Ground Beetles (Coleoptera: Carabidae) in Two Vineyards of Southern Quebec, Canada
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From 1997 to 1999, 11,435 specimens of ground beetles representing 124 species were captured in pitfall traps at two commercial vineyards in southern Quebec, Canada. Taking into account only the species breeding or likely breeding in the two vineyards, the carabid diversity was similar over the 3-yr period in both sites. The number of species was similar (51 and 54) in both vineyards, but the most common species were ranked differently in a position that was consistent over the 3-yr period. Chlaenius sericeus (Forster) and Clivina fossor (L.) occurred mainly on the clay loam vineyard, and Amara latior (Kirby) and Harpalus herbivagus Say on the gravel and sand loam vineyard. The Shannon diversity and evenness indexes were greater at the gravel and sand loam vineyard. Two recently introduced European species, Harpalus rufipes (Duftschmid) and Pterostichus vernalis (Panzer), became more prevalent between 1997 and 1999 and are likely to affect the rank position at each site. Diversity at the clay loam vineyard was equal to another unsprayed and annually cultivated site on clay in the ecozone. It shared with the unsprayed site a similar number of species for an equal sample size, Shannon and evenness indexes, and for most species, ranking of the most commonly trapped species.

Henri Goulet, Laurent Lesage, Noubar J. Bostanian, Charles Vincent, and Jacques Lasnier "Diversity and Seasonal Activity of Ground Beetles (Coleoptera: Carabidae) in Two Vineyards of Southern Quebec, Canada," Annals of the Entomological Society of America 97(6), 1263-1272, (1 November 2004).[1263:DASAOG]2.0.CO;2
Received: 17 March 2004; Accepted: 1 July 2004; Published: 1 November 2004

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