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  • 1
    Electronic Resource
    Electronic Resource
    Male-size-related courtship success and intersexual selection in the tobacco moth,Ephestia elutella (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 1291-1293 
    Details
    ISSN: 1420-9071
    Keywords: Sexual selection ; mate choice ; male pheromone ; mating success ; courtship ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary InEphestia elutella males, mating success is positively correlated with size. Experimental manipulation of males demonstrated that this is due to females actively discriminating against small males, the first direct evidence for female mate-choice in moths. Furthermore, this female preference is associated with increased fitness in that, by mating with larger males, females are more likely both to produce larger offspring and to increase their fecundity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946428
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Behavioral and electrophysiological activity of (Z,E)-7,9,11-dodecatrienyl formate, a mimic of the major sex pheromone component of carob moth,Ectomyelois ceratoniae (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 2331-2352 
    Details
    ISSN: 1573-1561
    Keywords: Lepidoptera ; Pyralidae ; sex pheromone ; (Z,E)-9,11,13-tetradecatrienal ; mimic ; (Z,E)-7,9,11-dodecatrienyl formate ; wind tunnel ; attractant ; electrophysiology ; receptor cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The behavioral and electrophysiological activity of a mimic [(Z,E)7,9,11-dodecatrienyl formate] of the major sex pheromone component [(Z,E) 9,11,13-tetradecatrienal] of carob moth was assessed. Wind-tunnel bioassays demonstrated that the formate was as effective as natural gland extracts, and significantly more effective than the trienal alone or than the trienal blended with two minor pheromone components, in evoking source contact. Dispensers containing the formate were as effective as trienal-containing blend lures in attracting males when placed at the same dosage in traps in date gardens. Single-cell recordings showed that at least two olfactory neurons, differentiated by spike amplitude, are located in the long trichoid hairs on male carob moth antennae. Dose-response relationships indicated that puffs from cartridges loaded with at least 0.1 μg of the formate or of the trienal were necessary to elicit spiking by either the small or the large-spiking cell within a sensillum. Cross-adaptation studies demonstrated that both compounds stimulated the same large-spiking cell. The frequencies of spikes evoked from the large cell when stimulated by emissions from 0.1-μg, 1-μg, or 10-μg cartridges of either the formate or the trienal were not significantly different, suggesting that the formate is an effective mimic of the trienal at the antennal receptor cell level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984953
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical identification and behavioral characterization of male wing pheromone ofEphestia elutella (Pyralidae) (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 135-146 
    Details
    ISSN: 1573-1561
    Keywords: courtship pheromone ; wing pheromone ; male pheromone ; Ephestia elutella ; Pyralidae ; phytol ; γ-decalactone ; γ-undecalactone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Behavioral and chemical evidence is presented for the identity of the male wing pheromone ofEphestia elutella (Hübner) and the role of this pheromone in courtship success is evaluated. Males with the forewing removed experienced a mating success rate less than half of that of either intact males or males that had only the wing gland area remaining of their forewings. GC-MS analysis and microchemical reactions indicated the presence of (E)-phytol and a series of saturated γ-lactones in a methylene chloride extract of the wings. Using an assay of female courtship behavioral response, (E)-phytol was found to evoke an intermediate level of response in females when presented alone, while the complete array of insect-derived γ-lactones produced no significant response. The combination of either γ-decalactone or γ-undecalactone with (E)-phytol in a 1∶2 ratio, however, elicited a female response equivalent to that produced by the unfractionated wing extract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01045597
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  • 4
    Electronic Resource
    Electronic Resource
    Identification and bioassay of sex pheromone components of carob moth,Ectomyelois ceratoniae (Zeller) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1973-1988 
    Details
    ISSN: 1573-1561
    Keywords: Flight tunnel ; gas chromatography-electrophysiology ; mass ; spectrometry ; aldehydes ; (Z,E)-9,11,13-tetradecatrienal ; (Z,E)-9,11-tetra-decadienal ; (Z)-9-tetradecenal ; pheromone ; Lepidoptera ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three sex pheromone components of the carob moth were isolated and identified from the extract of female pheromone glands, using a variety of techniques including coupled gas chromatographic-electroantennographic recordings, coupled gas chromatographic-mass spectrometric analysis, microozonolysis, electroantennographic assays of monounsaturated standards, wind-tunnel bioassays, and field trials. The major component was identified as (Z,E)-9,11,13-tetradecatrienal, a novel lepidopterous pheromone component structure. Two minor components, either one of which improves the upwind flight response of males when blended with the major component, were identified as (Z,E)-9,11-tetradecadienal, and (Z)-9-tetra-decenal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00992582
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    Paper (German National Licenses)
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