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Erschienen in: Population Ecology 1/2009

01.01.2009 | Original Article

Cause of egg mortality in azuki bean weevils (Callosobruchus chinensis): physical or chemical?

verfasst von: Koichi Fujii

Erschienen in: Population Ecology | Ausgabe 1/2009

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Abstract

The cause of high egg mortality at high adult density in azuki bean weevil is still controversial. It may be physical, as a result of adult trampling, or chemical, as a result of substance(s) secreted by adults and coated on the bean surface. In this study, I first constructed simple mathematical models based on each mechanism, which could predict the change of egg hatchability oviposited on different dates at different adult densities. I then devised an experimental method that could identify the fate of eggs oviposited on different dates. The experimental results showed that egg mortality was most likely caused by adult trampling.

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Literatur
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Metadaten
Titel
Cause of egg mortality in azuki bean weevils (Callosobruchus chinensis): physical or chemical?
verfasst von
Koichi Fujii
Publikationsdatum
01.01.2009
Verlag
Springer Japan
Erschienen in
Population Ecology / Ausgabe 1/2009
Print ISSN: 1438-3896
Elektronische ISSN: 1438-390X
DOI
https://doi.org/10.1007/s10144-008-0098-0

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