NDLI: Worker policing by egg eating in the ponerine ant Pachycondyla inversa.

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Worker policing by egg eating in the ponerine ant Pachycondyla inversa.

Content Provider	Semantic Scholar
Author	D'Ettorre, Patrizia Heinze, Jürgen Ratnieks, Francis L. W.
Copyright Year	2004
Abstract	We investigated worker policing by egg eating in the ponerine ant Pachycondyla inversa, a species with morphologically distinct queens and workers. Colonies were split into one half with the queen and one half without. Workers in queenless colony fragments started laying unfertilized male eggs after three weeks. Worker-laid eggs and queen-laid eggs were introduced into five other queenright colonies with a single queen and three colonies with multiple queens, and their fate was observed for 30 min. Significantly more worker-laid eggs (range of 35-62%, mean of 46%) than queen-laid eggs (range of 5-31%, mean of 15%) were eaten by workers in single-queen colonies, and the same trend was seen in multiple-queen colonies. This seems to be the first well-documented study of ants with a distinct caste polymorphism to show that workers kill worker-laid eggs in preference to queen-laid eggs. Chemical analyses showed that the surfaces of queen-laid and worker-laid eggs have different chemical profiles as a result of different relative proportions of several hydrocarbons. Such differences might provide the information necessary for differential treatment of eggs. One particular alkane, 3,11-dimeC27, was significantly more abundant on the surfaces of queen-laid eggs. This substance is also the most abundant compound on the cuticles of egg layers.
Starting Page	118
Ending Page	121
Page Count	4
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://eprints.whiterose.ac.uk/302/1/ratnieksflw4.pdf
Alternate Webpage(s)	http://www.lasi.group.shef.ac.uk/pdf/detetalprocb2004.pdf
Alternate Webpage(s)	https://core.ac.uk/download/pdf/59584.pdf
PubMed reference number	15306343v1
Volume Number	271
Issue Number	1546
Journal	Proceedings. Biological sciences
Language	English
Access Restriction	Open
Subject Keyword	Alkanes Ants Egg Food Product Hydrocarbons Ovum Pachycondyla anatomical layer
Content Type	Text
Resource Type	Article

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