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  • 1
    Electronic Resource
    Electronic Resource
    Relationship of queen number and worker size in polygyne colonies of the fire antSolenopsis invicta (1996)
    Springer
    Insectes sociaux 43 (1996), S. 303-307 
    Details
    ISSN: 1420-9098
    Keywords: Monogyny ; polygyny ; caste ; fire ants ; Solenopsis invicta
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We examined the relationship between queen number and worker size in colonies of the fire antSolenopsis invicta. Worker size in monogyne colonies was significantly greater than in polygyne colonies; furthermore, polygyne colonies snowed a strong negative linear relationship between queen number and worker size. Higher queen pheromone level and/or decreased food availability accompanying an increase in queen number likely play important roles in producing the observed patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01242931
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ecology and Evolution of Social Organization: Insights from Fire Ants and Other Highly Eusocial Insects (1995)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Ecology, Evolution, and Systematics 26 (1995), S. 631-656 
    Details
    ISSN: 0066-4162
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.es.26.110195.003215
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Regulation of Reproduction in Eusocial Hymenoptera (1985)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Entomology 30 (1985), S. 319-343 
    Details
    ISSN: 0066-4170
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.en.30.010185.001535
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Differential reproduction in multiple-queen colonies of the fire ant Solenopsis invicta (Hymenoptera: Formicidae) (1988)
    Springer
    Behavioral ecology and sociobiology 23 (1988), S. 341-355 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The contribution to maternity of workers and female sexuals over time by queens in six multiple-queen laboratory colonies of Solenopsis invicta was directly assessed by use of enzyme genetic markers. Queens contributed more equally to the worker pool than to the pool of sexuals in virtually all samples (Fig. 1), and individuals producing a substantial proportion of the workers often had low or no representation of their daughters in the pool of sexuals. Signficant disparity among queens in their relative production of sexual daughters was often evident, with dominance in production of sexuals by a given queen commonly occurring in association with a pronounced loss of weight followed shortly by her death. The results suggest that significant variability in short-as well as long-term reproductive success may occur among the distantly related queens associating in natural polygyne S. invicta nests. Variance in apportionment of maternity of sexuals did not appear to be simply related to varying levels of fecundity, suggesting that the common presumption that reproductive success can be equated with fecundity in polygyne social Hymenoptera may not be well founded. The observed variance also did not appear to result from a simple mechanism of kin recognition and discrimination by workers in the process of brood rearing. Rather, this variance may have largely resulted from either, 1) recognition of certain queens and their progeny coupled with preferential sexualization of these immatures by nurse workers, or, 2) queen biasing of eggs toward development as sexuals. The frequent association of weight loss and death of mother queens with high levels of sexual daughter production may be best explained by the latter mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303708
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    Paper (German National Licenses)
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