Intraspezifische Konkurrenz in der Populationsdynamik vonBracon hebetor Say (Hym., Braconidae) |
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| Authors: | Prof Dr K T Awadallah M F S Tawfik M M H Abdella |
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| Institution: | 1. Faculties of Agriculture Dep. of Econ. Entomol., Biol. Control of Agric. Pests Res. Lab., Cairo University, Egypt
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| Abstract: | The female parasite,Bracon bebetor is not able to distinguish the host that she or other female of its species attacked. Thus, a host larva ofG. mellonella bearing numerous eggs of this parasite most probably was superparasitized. This phenomenon induces obvious decreases in the length of the parasite developmental period and its progeny and increases the rate of mortality in immature stages and number of males in the progeny. Individuals parasitising the host earlier are always survivors and those attacking it later are losers. Losers are either devoured early by the older larvae or die, later, under the state of starvation when the host individual provides insufficient supply of food for all attacking larvae. |
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