| Influence of physical and chemical factors during foraging and culture of the symbiont fungus in Atta sexdens rubropilosa （Hymenoptera： Formicidae） |
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| 作者姓名： | SANDRA S. VERZA LUIZ C. FORTI JULIANE F. S. LOPES ROBERTO S.CAMARGO CARLOS A. O. MATOS |
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| 作者单位： | [1]Departamento de Zoologia, Instituto de Biociencias [2]Laboratrio de Insetos Sociais-Praga, Departamento de Produ~~o Vegetal-Def-esa Fitossanitaria, Faculdade de Ciencias Agronomicas, UNESP-Sao Paulo State University, Fazenda Experimental Lageado,Botucatu, SP [3]Comportamento e Biologia Animal, Instituto de Ciencias Biologicas, UFJF-Universidade Federal de Juiz de Fora,Campus Universitario Martelos, Juiz de Fora, MG [4]Campus Experimental de Itapeva, UNESP, Itapeva, SP, Brazil |
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| 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.
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| 关 键 词： | 吸引力 行为 底物选择 真菌叶子切口蚂蚁 底物拒收 |
Influence of physical and chemical factors during foraging and culture of the symbiont fungus in Atta sexdens rubropilosa (Hymenoptera: Formicidae) |
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| Authors: | SANDRA S VERZA LUIZ C FORTI JULIANE F S LOPES ROBERTO S CAMARGO CARLOS A O MATOS |
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| Institution: | Departamento de Zoologia, Instituto de Biociências, Botucatu, SP, Brazil;, Laboratório de Insetos Sociais-Praga, Departamento de ProduÇão Vegetal-Defesa Fitossanitária, Faculdade de Ciências Agronômicas, UNESP-São Paulo State University, Fazenda Experimental Lageado, Botucatu, SP, Brazil;, Comportamento e Biologia Animal, Instituto de Ciências Biológicas, UFJF-Universidade Federal de Juiz de Fora, Campus Universitário Martelos, Juiz de Fora, MG, Brazil;, Campus Experimental de Itapeva, UNESP, Itapeva, SP, Brazil |
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| Abstract: | 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 following 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. |
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| Keywords: | Atta sexdens rubropilosa attractiveness behavior leaf-cutting ants substraterejection substrate selection |
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