集合性昆虫における幼虫の初期死亡の機構に関する考察
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- 中村 寛志
- 信州大学農学部
書誌事項
- タイトル別名
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- An Analysis of Mortality Process of Young Larvae in Gregarious Insects
- シュウ アイショウ コンチュウ ニ オケル ヨウチュウ ノ ショキ シボウ ノ
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Many experimental studies have examined the effect of larval aggregation on the survival and development of gregarious insects, but the cause of high mortality of young larvae in small rearing groups and the relation between the young larval mortality rate and the size of the rearing group are not well understood. If the mortality of newly emerged larvae is due solely to their inability to bite their food foliage, the mortality rate in a group of n larvae can be stated as Mn=(1-p)n, where p is the probability that an arbitrarily chosen larva is able to bite its food foliage within a limited time. Larvae of three gregarious species, Spilarctia imparilis BUTLER, Neodiprion sertifer GEOFFROY and Eurydema rugosum MOTSCHULSKY, were reared in different group sizes. The mortality rate of first instar larvae in each group of S. imparilis coincided well with the theoretical value caluculated from the model. It is suggested as an alternative interpretation of the model that there are two types of newly emerged larvae, one which can bite and one which cannot bite food when isolated. Larval mortality when the number of hatchlings from an egg mass becomes small due to egg parasitism is also discussed in connection with the model.
収録刊行物
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- 日本応用動物昆虫学会誌
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日本応用動物昆虫学会誌 21 (4), 190-196, 1977
日本応用動物昆虫学会
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詳細情報 詳細情報について
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- CRID
- 1390001206448625664
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- NII論文ID
- 110001113142
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- NII書誌ID
- AN00186121
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- ISSN
- 13476068
- 00214914
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- NDL書誌ID
- 1919500
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可