ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Semiochemical basis of the retinue response to queen honey bees (1988)
    [s.l.] : Nature Publishing Group
    Nature 332 (1988), S. 354-356 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Laying queens were immobilized at -20 °C. Mandibular glands were excised, macerated and extracted twice in HPLC-grade methanol to give a combined total extract of 100 JJL! per queen. A 3-queen equivalent (Qeq) HQMC extract was chromatographed on a micro-column of acid-treated silica gel. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/332354a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Demography and life history characteristics of two honey bee races (Apis mellifera) (1981)
    Springer
    Oecologia 48 (1981), S. 407-413 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Intra-colony demography and life history characteristics of neotropical Africanized and temperate European honey bearaces were compared under simulated feral conditions. Major differences in colony demography were found which nevertheless resulted in some similar reproductive characteristics. European colonies were larger than Africanized colonies, had more rapid initral growth rates of worker populations, showed better survivorship of brood and adult workers, and differed in patterns of worker age distribution. However, both races were similar in the brood and adult populations when colonies swarmed, the frequency and timing of swarming, and the number of workers in prime swarms. The factors most important in determining these colony growth and reproductive patterns were likely worker mortality rates, climate, and resource availability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00346502
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Selection on worker honeybee responses to queen pheromone (Apis mellifera L.) (2000)
    Springer
    Naturwissenschaften 87 (2000), S. 487-490 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Notes: Abstract  Disruptive selection for responsiveness to queen mandibular gland pheromone (QMP) in the retinue bioassay resulted in the production of high and low QMP responding strains of honeybees (Apis mellifera L.). Strains differed significantly in their retinue response to QMP after one generation of selection. By the third generation the high strain was on average at least nine times more responsive than the low strain. The strains showed seasonal phenotypic plasticity such that both strains were more responsive to the pheromone in the spring than in the fall. Directional selection for low seasonal variation indicated that phenotypic plasticity was an additional genetic component to retinue response to QMP. Selection for high and low retinue responsiveness to QMP was not an artifact of the synthetic blend because both strains were equally responsive or non-responsive to whole mandibular gland extracts compared with QMP. The use of these strains clearly pointed to an extra-mandibular source of retinue pheromones (Pankiw et al. 1995; Slessor et al. 1998; Keeling et al. 1999).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001140050764
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Book reviews (1991)
    Springer
    Journal of insect behavior 4 (1991), S. 409-415 
    Details
    ISSN: 1572-8889
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048288
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Movement of honey bee (Apis mellifera L.) queen mandibular gland pheromone in populous and unpopulous colonies (1993)
    Springer
    Journal of insect behavior 6 (1993), S. 211-223 
    Details
    ISSN: 1572-8889
    Keywords: honey bee ; queen ; mandibular gland pheromone ; movement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The mode of intranest transfer of the honey bee queen mandibular gland pheromone complex (QMP) was investigated in unpopulous and populous, slightly congested colonies, using synthetic QMP containing tritiated 9-keto-2(E)-decenoic acid, one of the QMP components. Radiolabel was rapidly transported from the center to the peripheral regions of the nest, and in a manner consistent with worker to worker transport. Population size and congestion had no effect on the relative rates of movement from the center to the periphery of the nest or on the mean amounts of radiolabel on individual bees. However, a significantly smaller proportion of the workers in the populous colonies received detectable amounts of radiolabel than in the uncongested colonies, and workers carrying especially large amounts of radiolabel were less numerous in the crowded colonies. It is suggested that, at the stage of colony development that the colonies were in, population size has more of an effect on intranest pheromone transmission than does crowding. Interference with pheromone transfer may occur only at higher levels of congestion than were created, and nearer to the reproductive phase of colony development. An alternative hypothesis is that colony crowding does not significantly affect QMP transport and that the onset of reproductive queen rearing may be associated more with changes in worker thresholds of response to QMP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01051505
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Book review (1992)
    Springer
    Journal of insect behavior 5 (1992), S. 539-541 
    Details
    ISSN: 1572-8889
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01058200
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The role of queen mandibular pheromone and colony congestion in honey bee (Apis mellifera L.) reproductive swarming (Hymenoptera: Apidae) (1991)
    Springer
    Journal of insect behavior 4 (1991), S. 649-660 
    Details
    ISSN: 1572-8889
    Keywords: honey bee ; pheromone ; swarming ; queen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The roles of honey bee queen mandibular pheromone and colony congestion in the inhibition of swarming were investigated. Two colony siz.es were used: small, congested colonies and large, uncongested colonies. Both groups of colonies were treated with various dosages of the five-component, synthetic queen mandibular pheromone in the spring, and the extent and timing of swarming were followed. Most treatment groups received pheromone or a solvent blank (control) on a stationary slide; one group of the congested colonies received a pheromone treatment via an aerosol spray. The pheromone was not effective at delaying swarming in the congested colonies at any dosage applied on slides, but the aerosol spray-treated colonies swarmed significantly later in the season than the control colonies. The uncongested, pheromone-treated colonies exhibited a dose-dependent delay in swarming, with the highest dosage colonies swarming almost four weeks later than the control colonies. These results indicate an interaction between congestion and pheromone in the control of honey bee reproduction. While congestion may in itself be a factor stimulating swarming, these results are consistent with the interpretation that colony congestion reduces the transmission of queen pheromone within the nest, thereby removing the queen 's pheromone-based inhibition of queen rearing and subsequent swarming by workers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048076
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Honeybee response to queen mandibular pheromone in laboratory bioassays (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 841-850 
    Details
    ISSN: 1573-1561
    Keywords: Apis mellifera L. ; honeybee queen mandibular pheromone ; retinue behavior ; attraction bioassays ; Hymenoptera ; Apidae ; honeybee pheromone ; (E)-9-keto-2-decenoic acid ; (R,E)-9-hydroxy-2-decenoic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Quantitative laboratory biosassays measuring short-range attraction of worker honeybees to pheromone-treated pipets or glass pseudo-queens are described. Each replicate involves only 15 workers, allowing a single colony to provide sufficient individuals for a complete study as well as for between-colony comparisons. The more sensitive pseudo-queen bioassay provides a measurable response at levels of queen mandibular extract of 10−7 than that of an average individual mated queen. Formation and maintenance of the pseudo-queen's retinue, as well as more detailed behavior, can be evaluated by following the actions of individual workers replayed on video tape. Using this sensitive bioassay, the response of workers to queen mandibular pheromone has been shown to be sensitive to daily variation and colony source of the workers, but independent of worker age.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01016494
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Semiochemicals of the honeybee queen mandibular glands (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 851-860 
    Details
    ISSN: 1573-1561
    Keywords: Hymenoptera ; Apidae ; Apis mellifera L. ; honeybee queen mandibular semiochemicals ; retinue pheromone ; splitless capillary gas chromatography ; (E)-9-keto-2-decenoic acid ; methylp-hydroxybenzoate ; 4-hydroxy-3-methoxyphenylethanol ; (R,E)-(−)- and (S,E)-(+)-9-hydroxy-2-decenoic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The ontogeny of the five queen mandibular gland semiochemicals that initiate and maintain the retinue behavior of worker honeybees was investigated by quantitative splitless capillary gas chromatography. No detectable pheromone is present at the time of eclosion, but decenoic acid levels build up rapidly during the first week of the queen's life. Two aromatic components attain detectable levels later, with the more plentiful methylp-hydroxybenzoate preceding the 4-hydroxy-3-methoxyphenylethanol. Pheromone levels are maximal in mature, mated, laying queens. The ratio of (R,E)-(−)-9-hydroxy-2-decenoic acid to the (S,E)-(+) enantiomer increases with the age of the queen. Pheromone levels in queen mandibular glands are largely unaffected by queen banking, restraint with workers in mailing cages, and limited storage on dry ice. All major body parts of typical queens, especially the head and legs, have sufficient mandibular exudate to be highly attractive to worker bees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01016495
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The influence of a queen-produced substance, 9HDA, on swarm clustering behavior in the honeybeeApis mellifera L. (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1283-1288 
    Details
    ISSN: 1573-1561
    Keywords: Honeybee ; swarming ; 9-hydroxy-(E)-2-decenoic acid ; pheromone ; chirality ; Apis mellifera ; Hymenoptera ; Apidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The effect of enantiomers of the queen-produced substance, 9-hydroxy-(E)-2-decenoic acid (9HDA) on swarm clustering behavior of the honeybeeApis mellifera was studied. Caged queens were removed from the swarms at the start of each test and were replaced with small Petri dishes containing one of the following treatments: 100 μgS(+) enantiomer of 9HDA, 100 μgR(-) enantiomer of 9HDA, 200 μg racemic (R, S) 9HDA, and a vehicle-treated control. Each swarm was considered to have dispersed when it had lost 50% of its starting weight. All treatments with 9HDA resulted in significantly longer swarm aggregation when compared with the control. Enantiomers were not shown to have different effects at theP ≤ 0.05 level of significance. However, observations on swarm behavior indicated that theR(-) enantiomer was the most active in retarding swarm dispersal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987761
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...