並列タイトル等The efficiency of herbivore exclusion by ants on the vetch Vicia angustifolia L. (Leguminosae ), mediated by ant attraction to aphids
一般注記The efficiency of herbivore exclusion by ants on the vetch Vicia angustifolia L. with extrafloral nectary (EFN), mediated by ant attraction to aphids was investigated in the field census and laboratory experiments. In the field, workers of Lasius japonicus Santschi and Tetramorium tsushimae Emery frequently visited plants of the vetch parasitized by aphids of Aphis craccivora Koch, but a few workers on plants unparasitized by aphids. An increase in the number of ants visiting a plant with increasing number of aphids caused in a decrease in the number of larvae of the weevil, Hypera postica Gyllenhal. Therefore, the efficiency of herbivore exclusion by ants was higher on plants parasitized by Ap. craccivora aphids than that on plants unparasitized by aphids. In laboratory experiments, L. japonicus workers patrolled frequently not only shoots with Ap. craccivora aphids but also shoots without them. On the other hand, T. tsushimae workers visited mainly shoots with Ap. craccivora aphids but less frequently on shoots without aphids. Therefore, L. japonicus workers excluded herbivores more efficiently on plants of the vetch than T. tsushimae workers. Consequently, the efficiency of herbivore exclusion by ants on the vetch may be influenced directly by difference in ant species and indirectly by the presence of aphids on plants. This study highlights the significance of indirect interactions between ants and plants with EFN, mediated by ant attraction to aphids for herbivore exclusion of plants.
一次資料へのリンクURLhttps://barrel.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5260&item_no=1&attribute_id=19&file_no=1
著作権情報https://link.springer.com/article/10.1111/j.1440-1703.2004.00636.x
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
提供元機関・データベース小樽商科大学 : 小樽商科大学学術成果コレクション