%0 Journal Article %T Atividade de Forrageamento de Formigas (Hymenoptera: Formicidae) em ¨¢reas de Mata e Campo de Gram¨ªneas no Pantanal sul-mato-grossense. %A Michelle Viscardi Sant'Ana %A Rose Benedita Rodrigues Trindade %A C¨¢ssia Cristina dos Santos Lopes %A Odival Faccenda %J EntomoBrasilis %D 2008 %I Vassouras, RJ %X ResumoO principal objetivo do estudo foi avaliar a taxa de explora o de iscas vivas por formigas em um Ambiente de Mata e de Campo de Gram¨ªneas. O experimento foi desenvolvido no Pantanal sul-mato-grossense, no Munic¨ªpio de Corumb¨¢, MS, no per¨ªodo de outubro a novembro de 2006. Cupins do g¨ºnero Nasutitermes, serviram de iscas. Em cada ¨¢rea, 80 indiv¨ªduos dessa esp¨¦cie permaneceram expostos no solo sobre uma base de papel filtro durante 10 Minutos. Observou-se a presen a de 15 morfoesp¨¦cies pertencentes a seis g¨ºneros e cinco subfam¨ªlias, sendo mais freq¨¹ente Myrmicinae. No campo de gram¨ªneas ocorreram maior riqueza e diversidade de esp¨¦cies. Wasmania sp.1 foi respons¨¢vel pelo maior n¨²mero de iscas removidas na Mata e Dorymyrmex sp. 1 no Campo de Gram¨ªneas. A diferen a no tempo m¨¦dio para remo o das iscas nas duas ¨¢reas (mata e gram¨ªnea) n o foi significativa. Das 160 iscas oferecidas durante o experimento, 115 sofreram atacadas por formigas: 69 na mata e 46 no campo de gram¨ªnea.Activity of Ants (Hymenoptera: Formicidae) Foraging in a Forest Patch and in a subtropical seasonally flooded lowland grassland in the Pantanal from Mato Grosso do Sul, Brazil.Abstract. The main goal of this research was to evaluate the exploitation rate of live baits for ants in an environment of forest patches and subtropical seasonally flooded lowland grassland. The samples were collected from October to November 2006 in the Pantanal, sub-regions Miranda and Abobral, municipality of Corumb¨¢, Mato Grosso do Sul, Center West Brazil. Termites of the genera Nasutitermes were used as bait, and remained exposed for 10 minutes on the soil. Eighty baits were used in each environment. Fifteen ant morphospecies in six genera and five subfamilies were collected, and the Myrmicinae were the most frequent subfamily. We found larger richness and diversity of species in the subtropical seasonally flooded lowland grassland. Wasmania sp.1 was responsible for the largest number of removed baits (30) in the Forest Patch and Dorymyrmex sp. 1 in the subtropical seasonally flooded lowland grassland. The difference in the average time for removal of the baits from the two areas was not significant. From the 160 baits offered during the experiment, 115 were attacked by ants, 69 in the Forest Patch and 46 in the grassland. %K Atividade de forrageamento %K formigas %K Preda o %K Ants %K foraging activity %K Pantanal %K predation %U http://www.periodico.ebras.bio.br/ojs/index.php/ebras/article/view/11/53