| The packaging problem: bivalve prey selection and prey entry techniques of the octopus Enteroctopus dofleini. | |
| | |
MedLine Citation:
|
PMID: 17696656 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Many predators face a complex step of prey preparation before consumption. Octopuses faced with bivalve prey use several techniques to penetrate the shells to gain access to the meat inside. When given prey of mussels Mytilus trossulus, Manila clams Venerupis philippinarum, and littleneck clams Protothaca staminea, Enteroctopus dofleini solved the problem differently. They pulled apart V. philippinarum and M. trossulus, which had the thinnest shells and the least pulling resistance. P. staminea were eaten after the shells had been chipped or had been penetrated by drilling, presumably to inject a toxin. Likely because of these differences, octopuses consumed more V. philippinarum and M. trossulus than P. staminea when the mollusks were given to them either 1 species at a time or all together. However, when the shells were separated and the penetration problem removed, the octopuses predominantly chose P. staminea and nearly ignored M. trossulus. When V. philippinarum were wired shut, octopuses switched techniques. These results emphasize that octopuses can learn on the basis of nonvisual information and monitor their body position to carry out feeding actions. |
| | |
Authors:
|
Roland C Anderson; Jennifer A Mather |
Related Documents
:
|
20949736 - Bronchoscopic management of bronchopleural fistula. 9787216 - The endoscopic browlift for forehead rejuvenation. 18664086 - Modification of the endoscopic management of congenital duodenal stenosis. 10810216 - Xenogeneic patch closure of the small intestine: a novel approach to fistula management. 2055756 - Empowering middle managers in hospitals with team-based problem solving. 5520726 - Amebic liver abscess and hydatid disease. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of comparative psychology (Washington, D.C. : 1983) Volume: 121 ISSN: 0735-7036 ISO Abbreviation: J Comp Psychol Publication Date: 2007 Aug |
Date Detail:
|
Created Date: 2007-08-16 Completed Date: 2007-11-13 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8309850 Medline TA: J Comp Psychol Country: United States |
Other Details:
|
Languages: eng Pagination: 300-5 Citation Subset: IM |
Affiliation:
|
Life Sciences Department, Seattle Aquarium, Seattle, WA 98101, USA. roland.anderson@seattle.gov |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Bivalvia Choice Behavior Feeding Behavior Meat Octopodiformes / physiology* Predatory Behavior* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effects of spatial food distribution on search behavior in rats (Rattus norvegicus).
Next Document: Human listeners provide insights into echo features used by dolphins (Tursiops truncatus) to discrim...