ファイル情報(添付) | |
タイトル |
山陰地方における圃場の昆虫群集の研究(1) : キャベツ畑における昆虫群集
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タイトル |
Studies on the Insect Association of Crop Field in San-in District(I) : On the Insect Association in a Cabbage Field
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タイトル 読み |
サンイン チホウ ニオケル ホジョウ ノ コンチュウ グンシュウ ノ ケンキュウ 1 キャベツ バタケ ニオケル コンチュウ グンシュウ
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著者 |
三浦 正
花見 正昌
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収録物名 |
島根農科大学研究報告
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巻 | 14 |
開始ページ | (A-1)45-50 |
収録物識別子 |
ISSN 05598311
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内容記述 |
抄録・要旨
In this paper an attempt was made to make clear the faunistic composition and its seasonal change in a cabbage field of spring and autumn.
The all insects on cabbage field were collected weekly from early April to late May of spring and early October to late November of autumn in 1963, and obtained results were treated after MOTOMURA'S geometrical progression formula (1932). The composition of the major species in a cabbage field are shown in Table 1 and 2. The succession of structure of insect community in a cabbage field was summarized as follows; (Spring field) PiRC. Ap-association in the middle to the latter part of April-PiRC・Ap・PIN-association in early and middle May→PiRC・Ap・PIN・BaB_association in the middle to the end of May. (Autumn field) Ap・BaB_association in the beginning to the end of October→Ap・BaB・PiRC・PIN-association in the beginning to the latter part of November. The geometrical progression formula Log y + ax = b, given by MOTOMURA (1932) are shown in Table 3 and Figure 2 - 3. Where "y" is the number of individuals of one species per unit area, "x" is the rank in individual number of each species, the value of "a" is a constant indicating the complexity of association and value of "b" is a constant showing the population density of the association. The number of individuals was observed to increase from April unitil May, and the faunistic composition was most complex in the middle to the latter part of May. At the beginning to the middle in October, the fauna showed the most simple in the composition though the population was high, but in the later part October to the end of November it became complex. The most important injurious insects in a cabbage field were Pieris rapae cruivora, Plusia nigrisigna, Barathra brassicae and Aphidiae. |
言語 |
日本語
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資源タイプ | 紀要論文 |
出版者 |
島根農科大学
The Shimane Agricultural College
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発行日 | 1965-12-31 |
アクセス権 | オープンアクセス |
関連情報 |
[NCID] AN00108241
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備考 | A,Bを含む |