Life history response of a predatory ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), to food stress
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概要
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The ladybird beetle, Harmonia axyridis (Pallas), was studied under laboratory condition to reveal the effect of food stress on phenotypic changes in life history traits that reflect larval and adult performance. Two food environments (abundant and limited food availability) were used as experimental treatments. When the food was limited, larvae grew slowly. Surviving adults were smaller, and their pre-reproductive period was considerably prolonged, reproductive life span and fecundity were reduced, and longevity was increased. On limited food supply, adults had reduced efficiency of converting food into eggs in comparison to adults provided abundant food supply. The relationships between lifetime fecundity and female longevity suggested that for both food levels, there were two groups of individuals with one group showing a positive correlation and the other group a negative correlation between reproduction and longevity. Life history responses to food stress, and the trade-off between fecundity and female longevity, are discussed.
- 日本応用動物昆虫学会の論文
- 2008-05-25
著者
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Agarwala Basant
Ecology And Biodiversity Laboratories Department Of Life Science Tripura University
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Yasuda Hironori
Faculty Of Agriculture Yamagata University
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SATO Satoru
Faculty of Agriculture, Yamagata University
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Sato Satoru
Faculty Of Agriculture Yamagata University
関連論文
- Effects of native ladybirds on oviposition of the exotic species, Adalia bipunctata (Coleoptera: Coccinellidae), in Japan
- Life history response of a predatory ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), to food stress
- Preface
- Preface
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