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  • Tephritidae  (2)
  • encounters  (1)
  • Springer  (3)
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  • Springer  (3)
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  • 1
    Digitale Medien
    Digitale Medien
    Facilitation in Ovipositional Behavior of Bactrocera tryoni Flies (1999)
    Springer
    Journal of insect behavior 12 (1999), S. 815-832 
    Details
    ISSN: 1572-8889
    Schlagwort(e): Bactrocera tryoni ; social facilitation ; contests ; encounters ; oviposition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Mature female Queensland fruit flies, Bactrocera tryoni Froggatt, released into canopies of field-caged trees containing host fruit, did not discriminate between fruit having or lacking two resident conspecific females when selecting fruit on which to alight. When released individually onto a fruit, mature females showed no greater or lesser propensity to initiate boring with the ovipositor into fruit having or lacking a resident female engaged in pre-ovipositional or post-ovipositional behavior. However, boring propensity of introduced females was significantly enhanced or facilitated when released onto fruit on which a conspecific female was in the act of ovipositing. Introduced females were significantly more prone to initiate boring into high-ranking fruit (nectarines) than low-ranking fruit (lemons) and to do so when having a high rather than a low egg load. Neither fruit type nor egg load of introduced females had a significant effect on the occurrence of encounters between introduced and resident females, on the occurrence of contests, or on the propensity of introduced females to initiate boring in the presence of a resident female. Among introduced females, there was a consistent trend to initiate boring earlier in the presence than in the absence of a resident female. We discuss circumstances, likely to be narrow, under which boring propensity of an intruding female might be facilitated in the presence of a resident female.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1020909227680
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Chemistry of fruit flies: Glandular secretion ofBactrocera (Polistomimetes) visenda (Hardy) (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 2169-2176 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Bactrocera visenda ; Diptera ; Tephritidae ; fruit fly ; 3-methyl-2-butenyl acetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The major component (〉90% of volatiles) of the male rectal glandular extract of the nonpest speciesBactrocera visenda (Hardy) is 3-methyl2-butenyl acetate, with minor components being the isomeric 3-methyl-3-butenyl acetate, the homologous esters, 3-methyl-2-butenyl propanoate and 3-methyl-2-butenyl formate, along with 3-methyl-2-buten-1-ol, 3-methyl-2-butenal, and 3-methylbutyl acetate. None of these compounds has been identified previously from aBactrocera species, supporting the view thatBactrocera visenda is taxonomically distant from otherBactrocera species identified from the Australian mainland. This collection of compounds adds to the known types utilized by dipteran species and emphasizes their extensive biosynthetic capability.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984944
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Chemistry of fruit flies: Nature of glandular secretion and volatile emission ofBactrocera (bactrocera) cacuminatus (Héring) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 485-495 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Bactrocera cacuminatus ; Bactrocera oleae ; Diptera ; Tephritidae ; olive fly ; spiroacetal ; ketoalcohol ; chirality
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The major component of the rectal glandular extract and volatile emission of maleBactrocera cacuminatus is racemic 1,7-dioxaspiro[5.5]undecane. l-Hydroxy-5-nonanone as its open chain form, together with 6-n-butyl-3,4-dihydro-2H-pyran are minor components. 1,7-Dioxaspiro[5.5]undecan-4-ol is present at a low level and is shown to be exclusively the diastereomer with an equatorial hydroxy group by comparison with synthesized samples of both epimers. Examination of the trifiuoroacetate by chiral gas chromatography has established the (4S,6S) stereochemistry (ca. 80% ee). The presence of 1,7-dioxaspiro[5.5]undecan-3-ol, or its isomerization product, 1,6-dioxaspiro[4.5]decan-2-ylmethanol, could not be confirmed. Trapping of the volatiles released by sexually mature male flies at dusk revealed that a number of the glandular components described above are released at mating time. Reexamination of the glandular secretion of sexually mature female olive flies (B. oleae) has failed to confirm the presence of any 1,7-dioxaspiro[5.5]undecanols, with the only volatile component (other than fatty acids) being 1,7-dioxaspiro[5.5]undecane.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994347
    Standort Signatur Erwartet Verfügbarkeit
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