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集合性昆虫の特性
http://hdl.handle.net/10091/2216
http://hdl.handle.net/10091/22165d2db8ef-07ee-4d61-bf90-d6d9a9c6851b
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-03-03 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 集合性昆虫の特性 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Ecological Significance of Insect Aggregation | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
著者 |
森本, 尚武
× 森本, 尚武 |
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出版者 | ||||||
出版者 | 信州大学農学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 信州大学農学部紀要 4(2): 155-164(1967) | |||||
書誌情報 |
信州大学農学部紀要 巻 4, 号 2, p. 155-164, 発行日 1967-09-30 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | As Allee (1931) has pointed out, aggregation is due in the first place to the eggs being laid together. Newly hatched larvae from an egg mass have a strong tendency to form aggregation. But in most of these species, the larvae should disperse gradually as development advances. The author has made clear the effect of aggregation of these species and details of this effect have been reported previously. In the present paper, the important results are summarized and the ecological significance of the aggregation is discussed. Synchronism of hatching from an egg mass and larval mortality during the period of aggregation were examined as the index for the effect of aggregation. A good synchronization of hatching was observed in a large size of egg mass and the hatched larvae form a large aggregation. As the result of this large aggregation, the larvae can feed together easily and larval mortality becomes low. The effect of aggregation can be divided into two kinds of mode of actions, the environmental conditioning and the mutual interaction. These two modes of action have been also found in the case of the so-called effect of population density. The mortality factors may not act at random on the individuals within an aggregation, but on the whole aggregation itself. The mortality factors that bring about a partial destruction of the members of aggregation such as egg parasites, predators and climatic factors may affect also the mortality of the ensuing survivors. But it should be most important that the aggregation is destroyed by the mortality factors as a whole. It can be concluded that the size of aggregation affects the mortality and this effect can be distinguished from the so-called effect of population density. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0583-0621 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00121352 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |