Learning of colonial odor in the ant Cataglyphis niger (Hymenoptera; Formicidae).
Ants learn the odors of members of their colony early in postnatal life, but their ability to learn to recognize noncolony conspecifics and heterospecifics has never been explored. We used a habituation-discrimination paradigm to assess individual recognition in adult Formicine ants, Cataglyphis niger. Pairs of workers from different colonies were placed together for repeated trials, and their ability to discriminate the ant that they encountered from another familiar or unfamiliar ant was observed. Some ants were isolated between encounters, and others were returned to their home colonies. Our results suggest for the first time in ants that C. niger adults learn about individual ants that they have encountered and recognize them in subsequent encounters. Ants are less aggressive toward non-nestmates after they are familiar with one another, but they are aggressive again when they encounter an unfamiliar individual. Learning about non-nestmates does not interfere with an ant's memory of members from its own colony.
Nowbahari
Elise
E
Laboratoire d'Ethologie Expérimentale et Comparée, UMR CNRS 7153, Université Paris Nord, Villetaneuse, France. elise.nowbahari@leec.univ-paris13.fr
D000818:Animals; D001000:Ants / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology; D007858:Learning; D009812:Odorants; D021641:Recognition, Psychology; D012903:Smell / Q000502:physiology*
Proc Natl Acad Sci U S A. 1985 Dec;82(24):8545-7
16593637
Science. 2005 Jul 8;309(5732):311-4
15947139
Proc Natl Acad Sci U S A. 1975 Jul;72 (7):2824-8
1058498
Science. 1975 Nov 21;190(4216):798-800
1198097
Behav Processes. 1989;18(1-3):173-81
24897675
Behav Processes. 2001 Aug 15;55(2):67-73
11470498
Behav Genet. 1988 Jul;18(4):425-38
3190637
Curr Biol. 2005 Dec 6;15(23):2170-4
16332544
J Chem Ecol. 1989 Jul;15(7):2115-25
24272300