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ID 355
Eprint ID
355
FullText URL
Title Alternative
キュウリュウチュウ(Martianus dermestaides)の成虫による卵の共食いと発育期の死亡率への密度効果および産卵曲線
Author
Yoshida, Toshiharu
Abstract
1) The life-history of Martianus dermestoides Chevrolat bred in rice bran was presented briefly at the laboratory conditions of 30℃ and 61-75 per cent R. H. 2) Sexual difference in the pupal genital appendage was illustrated. 3) Mean rate of oviposition (age-specific net fecundity) was shown graphically. 4) Cannibalism of eggs by a male adult was investigated at different egg densities. Cannibalism occured intermittently, a beetle continued to eat eggs for 1-4 days and ceased eating for 1 or 2 days. The number of both beetles and days observed to cannibalize increased with density of eggs introduced. As the egg density increased, the average number of eggs eaten per male per day also increased. 5) Crowding a of the male effected on the egg cannibalism. As male density increased the average number of eggs eaten per male per day and the cannibalism rate, the fraction of eggs eaten per beetle per day, both decreased rapidly. 6) Effect of crowding on pre-adult mortality was investigated initiating at various degrees of egg density. The beetle was markedly tolerable to overcrowding.
Published Date
1974
Publication Title
岡山大学農学部学術報告
Publication Title Alternative
Scientific Reports of the Faculty of Agriculture Okayama University
Volume
volume44
Issue
issue1
Publisher
岡山大学農学部
Publisher Alternative
Faculty of Agriculture, Okayama University
Start Page
9
End Page
14
ISSN
0474-0254
NCID
AN00033029
Content Type
Departmental Bulletin Paper
language
英語
File Version
publisher
Refereed
False
Eprints Journal Name
srfa