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Author  |
Ferrer, A.; Dixon, A.F.; Gibernau, M.; Hemptinne, J.L. |
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Title |
Ovarian dynamics and specialisation in ladybirds |
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Journal Article |
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Year |
2010 |
Publication |
Ecological Entomology |
Abbreviated Journal |
Ecol. Entomol. |
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Volume |
35 |
Issue |
1 |
Pages |
100-103 |
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Keywords |
Ladybird beetles; oocyte resorption; ovarian dynamics; specialisation |
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Abstract |
2. This hypothesis was tested by comparing a generalist and a specialist ladybird species belonging to the same genus. 3. A resorption index was calculated for females of both species subjected to several starvation regimes. This index indicated that over a period of fasting of 3 days, the intensity of resorption was greater in the generalist than the specialist. When food was again supplied, oogenesis resumed and within 1 day was faster in the generalist than in the specialist. 4. As predicted, the resorption of oocytes and replenishment occurred faster in the generalist than in the specialist species. This is the first time, to our knowledge, that the speed and intensity of the ovarian dynamics of a predatory insect have been linked to its way of life. |
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Address |
[Ferrer, Aurelie; Hemptinne, Jean-Louis] Univ Toulouse ENFAT, CNRS, UMR 5174, F-31326 Castanet Tolosan, France, Email: jean-louis.hemptinne@educagri.fr |
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WILEY-BLACKWELL PUBLISHING, INC |
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ISSN |
0307-6946 |
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Notes |
ISI:000273454300013 |
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no |
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Call Number |
EcoFoG @ eric.marcon @ |
Serial |
86 |
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