Issue |
Apidologie
Volume 34, Number 3, May-June 2003
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Page(s) | 249 - 256 | |
DOI | https://doi.org/10.1051/apido:2003016 |
DOI: 10.1051/apido:2003016
Fight between virgin queens (Apis mellifera) is initiated by contact to the dorsal abdominal surface
Jochen Pflugfelder and Nikolaus KoenigerInstitut für Bienenkunde (Polytechnische Gesellschaft) Fb. Biologie und Informatik, J.W. Goethe-Universität, Frankfurt a. Main, Karl-von-Frisch-Weg 2, 61440 Oberursel, Germany
(Received 10 July 2002; revised 7 October 2002; accepted 16 October 2002)
Abstract
To determine the nature of the stimuli involved in queen recognition,
we videotaped fighting behaviour between young virgin queens and developed
a bioassay. The results of the bioassay were as follows: (1) Under illumination
with red light, the queens responded with stinging behaviour (stB.); thus, lack
of visual stimuli did not play an essential role in releasing stB. (2) Tethered
queens, narcotised queens, and dead queens were stung, demonstrating that movement
was not essential for releasing stB. (3) Reduced contact between queens by placing
a single screen between them reduced the stinging response, while queens separated
by a double screen, blocking direct contact, had no stinging response. (4) StB. was
released when queens were in contact with isolated queen abdomens or dorsal
abdominal integuments. (5) Workers fitted with queen dorsal abdominal integument
released stB. (6) Fifteen day old queen pupae released stB. We hypothesize that
the pheromone triggering fighting behaviour is located on the queen's abdominal
tergites, which is the location of the tergite glands.
Key words: honeybee queen / fighting behaviour / bioassay / tergite gland / pheromone
Correspondence and reprints: Nikolaus Koeniger
e-mail: bienenkunde@em.uni-frankfurt.de
© INRA, EDP Sciences, DIB, AGIB 2003