Phragmosis
From Wikipedia, the free encyclopedia
Phragmosis is any method by which an animal defends itself in its burrow by using its own body as a barrier. An example can be seen in the mygalomorph spider Idiosoma nigrum (Black Rugose Trapdoor Spider), which protects itself in its burrow by positioning itself so as to block the burrow with its abdomen, which is unusually hard. Even more perfect is the shield of Cyclocosmia species (Ctenizidae). It is also commonly seen in some ant genera, in which the soldiers have unusually large, disc-shaped heads, which are used to block nest entrances against intruders.
References
- Main, Barbara York (1976). Spiders. Sydney: Collins. ISBN 0-00-211443-7.
Further reading
- Hölldobler, Bert and Diana E. Wheeler (1985). "Cryptic phragmosis: the structural modifications" ( – Scholar search). Psyche 92 (4): 337–354. doi:10.1155/1985/76848. Archived from the original on 2007-09-27. Retrieved 2007-06-10.
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.