ISSN:
1423-0445
Schlagwort(e):
male aggression
;
defensive secretion
;
tergal gland
;
closed-loop-stripping-analyses
;
tandem bioassay
;
mass fragmentography
;
2-methyl-1,4-benzoquinone
;
Coleoptera
;
Staphylinidae
;
Aleochara curtula
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Summary 2-methyl-1,4-benzoquinone as a target compound of the tergal gland secretion of the rove beetle,Aleochara curtula, was quantified from the reservoirs of individual beetles. Males store less secretion than females, and they evaporate more of the secretion as measured by adsorption from the air (closed-loop-stripping-analysis). The amount of emitted quinone is increased during aggressive interactions of rival males. The pulsed emission of the secretion during aggression is demonstrated by a novel technique combining observation of behavior with the on-line measurement of target fragment ions by mass-spectrometry (tandem bioassay — mass fragmentography). The emission of the secretion is used as a weapon in combats between males and may result in the repulsion of subordinate males from the mating site, but may also serve to mimic females chemically in order to avoid aggressive encounters.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01240634