Influence of physical and chemical factors during foraging and culture of the symbiont fungus in Atta sexdens rubropilosa （Hymenoptera： Formicidae）

作     者：SANDRA S. VERZA LUIZ C. FORTI JULIANE F. S. LOPES ROBERTO S.CAMARGO CARLOS A. O. MATOS 

作者机构：Departamento de Zoologia Instituto de Biociencias Laboratrio de Insetos Sociais-Praga Departamento de Produ~~o Vegetal-Def-esa Fitossanitaria Faculdade de Ciencias Agronomicas UNESP-Sao Paulo State University Fazenda Experimental LageadoBotucatu SP Comportamento e Biologia Animal Instituto de Ciencias Biologicas UFJF-Universidade Federal de Juiz de ForaCampus Universitario Martelos Juiz de Fora MG Campus Experimental de Itapeva UNESP Itapeva SP Brazil 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2007年第14卷第4期

页      面：295-300页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 071010[理学-生物化学与分子生物学] 07[理学] 0904[农学-植物保护] 0901[农学-作物学] 0713[理学-生态学] 

基　　金：We wish to thank Coordenadoria de Aperfeicoamento de Nível Superior (CAPES) for the scholarship granted to the first author. L.C. Forti gratefully acknowledges the support of Conselho Nacional de Pesquisa e Tecnologia (CNPq)(grant 301167/2003-6) 

主　　题：Atta sexdens rubropilosa attractiveness behavior leaf-cutting ants substraterejection substrate selection 

摘      要：The aim of this paper is to investigate the influence of physical and chemical factors on transport and use of substrate for Atta sexdens rubropilosa workers. Three types of rectangular fragments were used to study the physical influence factors： filter paper with paraffin, filter paper without paraffin and polyester film. To study the chemical factors, some fragments were impregnated with organic extract of orange albedo, others were soaked with soybean oil and for the remaining ones nothing was applied. The fonowing parameters were evaluated： （i） attractiveness of substrate for transport and number of loading workers per treatment; （ii） foraged material incorporation; （iii） rejection by numbers of fragments deposited in the garbage or beside the fungus garden. All the polyester film fragments carried out to the fungus garden were subsequently rejected. We verified that chemical factors of the substrate were more quickly detected by the workers, whereas physical factors were used as a criterion in the decision-making to reject or accept the substrate collected.