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Invasion of Camponotus punctulatus ants in sown pastures: consequences for ant activity and diversity Ecología austral
Folgarait,Patricia J; Gorosito,Norma B.
Agricultural activity in NE Argentina promotes the demographic explosion of the ant Camponotus punctulatus Mayr. We compared ant activity between a natural grassland and a neighbouring sown pasture in north-eastern Argentina during 24 h periods during three different times in the year. We offered sugar and tuna baits to ants in order to assess ant foraging activity. We set pitfalls during the summer to quantify ant activity independently of their responses to food resources. We also used bait and pitfall data to estimate ant diversity. C. punctulatus was the single ant species present at baits in the sown pasture. Significantly greater numbers of C. punctulatus in comparison to other ants were found at pitfalls at the agriculturally-disturbed plot when...
Tipo: Info:eu-repo/semantics/article
Ano: 2001 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2001000100008
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