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| Nakashima, Yoshitaka; Hirose, Yoshimi; 仲島, 義貴. |
| The effects of patch quality on the foraging behaviour of an anthocorid predator Orius sauteri (Poppius) were compared between sexes. Prior experience in patches was also studied to determine whether this was a factor affecting oviposition decisions. Patch quality affected patch residence time differently for the two sexes; females stayed much longer in a patch with prey (60 Thrips palmi larvae) than a patch without prey, while males did not remain in any patch for extended periods. Most of the females remained in or moved to patches with prey, whereas males dispersed, irrespective of patch quality. Both females released in patches with prey and females released in patches without prey deposited more eggs per hour in patches with prey than in patches... |
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Palavras-chave: Anthocoridae; Experience; Mate search; Orius sauteri; Oviposition; Patch time. |
| Ano: 2003 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/806 |
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| 前田, 聖子; 仲島, 義貴; 田頭, 栄子; 高木, 正見. |
| We investigated effects of sucrose solution on Onus sauteni nymphal survival rates, adult longevity and fecundity in the absence of arthropod prey. When first instar and third instar nymphs were fed 30% sucrose solution, they lived longer and reached a later instar than those fed on distilled water. However, there were no significant differences in longevity and fecundity between adult females fed sucrose and those fed distilled water. Therefore, sucrose solution provides nutritional benefits to O. sauteri nymphs, but other materials (i.e. protein) may be necessary to increase adult performance. In agro-ecosystems, it is regarded that biological control using O. sauteri can be enhanced by application of sucrose solution as a food source. |
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Palavras-chave: Orius sauteri; Sucroce; Longevity; Fecundity. |
| Ano: 2002 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2532 |
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