@misc{oai:barrel.repo.nii.ac.jp:00005267,
 author = {Katayama, Noboru and Suzuki, Nobuhiko},
 month = {Jun},
 note = {We evaluated directly the role of extra:floral nectary (EFN) for ant attraction and herbivore exclusion by experimental removal of EFN in laboratory. When EFN of Vicia faba Linnaeus (Leguminosae) was artificially removed, the number of workers of Tetramorium caespitum Linnaeus (Hymenoptera: Formicidae) visiting a plant decreased and the efficiency of herbivore exclusion by ants was also decreased. The herbivore exclusion by ants was mostly ineffective on a plant when less than four workers visited a plant, but when more than four workers visited a plant the residence time of a herbivore on a plant rapidly decreased with increasing numbers of ants on a plant. Thus, the efficiency of herbivore exclusion from plant is determined by the number of ants visiting a plant, and EFN plays an important role for ant attraction.},
 title = {Role of extra:floral nectaries of Vici a faba for attraction of ants and herbivores exclusion by ants.},
 year = {2004}
}