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Ips typographus (Ipidae) - Kopulation und Eiablage


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Title Ips typographus (Ipidae) - Kopulation und Eiablage
Alternative Title Ips typographus (Ipidae) - Copulation and Oviposition
Author Gries, Gerhard
License CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.3203/IWF/E-2748
IWF Signature E 2748
Publisher IWF (Göttingen)
Release Date 1985
Language Silent film
Producer Institut für den Wissenschaftlichen Film (IWF)
Production Year 1981

Content Metadata

Subject Area Life Sciences
Abstract Zur Kopulation suchen die Buchdruckerweibchen die Rammelkammer auf. Vor der Kopulation betrillert das Männchen den Hinterleib des Weibchens. Die Weibchen legen die Einischen seitwärts am Ende der Muttergänge an. Am Ende dieser Gänge werden Krümel bereitgelegt, mit denen die Nischen jeweils nach Ablage eines Eies verschlossen werden.
In the mating chamber the typographus male copulates twice with a female. Copulation is initiated by either male or female. The mates separate 10-30 seconds after the union. The egg-laying behaviour of the female is shown in 3 examples. The female always gnaws the new egg-niche at the end of the gallery. Mandibles and maxillae form a functional unit for gnawing. To lay the egg, the female backs up to the niche and lays egg directly into it. Afterwards she closes the niche with crumbs of phloem which she has already placed at the end of the gallery for this purpose.
Keywords Buchdrucker
Kopulation / Coleoptera
Ips typographus
Fortpflanzung, geschlechtliche / Coleoptera
Eiablage / Coleoptera
bark beetle
copulation / Coleoptera
oviposition / Coleoptera
reproduction, sexual / Coleoptera
spruce bark beetle
Ips typographus

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