Oak spangle galls caused by the larvae of the gall wasp Neuroterus quercusbaccarum. The reproduction of gall wasps is unusual in that,in most species,there is a regular alternation of generations,a bisexual generation being followed by an all- female,parthenogenetic generation. The galls produced by the two generations frequently bear no relation to one another. The asexual generation of N. quercusbaccarum form the oak spangle galls,in which they overwinter | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fleming, Vaughan |
Bildgröße: | 5044 px × 3353 px |
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Eigentums-Rechte: | nicht erforderlich |
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