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  • 11
    Electronic Resource
    Electronic Resource
    Variation of colony types in the antFormica cinerea (1996)
    Springer
    Insectes sociaux 43 (1996), S. 329-332 
    Details
    ISSN: 1420-9098
    Keywords: Formica cinerea ; conservation ; monogyny ; polygyny ; relatedness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Formica cinerea is a rare ant species in northern Europe where it occurs in few isolated populations. Estimates of genetic relatedness among worker nestmates revealed very different colonial structures. Relatedness was g = 0.81 in one population, and g = −0.03 and = 0.01 in two others. These results indicate that some populations of the species have mainly monogynous colonies (perhaps with monandrous queens), whereas others consist of polygynous and possibly polydomous colonies. Genetic differentiation of closely located populations suggests restricted dispersal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01242934
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  • 12
    Electronic Resource
    Electronic Resource
    Relatedness and microgeographic genetic variation in Rhytidoponera mayri, an Australian arid-zone ant (1984)
    Springer
    Behavioral ecology and sociobiology 15 (1984), S. 143-150 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We use a multiallelic regression and jack-knife technique to estimate relatedness and its confidence limits in a sample of 117 nests of the Australian arid zone ant Rhytidoponera mayri, using the genotypes at a prolifically-polymorphic amylase locus. Relatedness between workers from the same nest is low, whether calculated with respect to the complete sample of nests (b=0.121〈0.158〈0.195), or by restricting the analysis to those nests bordering a cell in a Gabriel-connectedness graph (b=0.101〈0.126〈0.151). Relatedness between workers of neighboring nests was determined for nearest-neighbors (b=0.021〈0.054〈0.087), and for nests connected in the Gabriel network (b=0.018〈0.036〈0.054). Relatedness is thus low but significant at both within- and between-nest levels, as is consistent with a life history involving multiple egg-layers and colony foundation via fission. Estimating relatedness for the different alleles separately yields some significant differences between alleles. We also tested for geographic substructuring using autocorrelation analysis of nine alleles separately and the factor scores for the first two principal components of all the allele frequencies: six of the eleven patterns tested differed significantly from randomness at the 95% level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299382
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  • 13
    Electronic Resource
    Electronic Resource
    Nestmate recognition and the genetic relatedness of nests in the ant Formica pratensis (1998)
    Springer
    Behavioral ecology and sociobiology 43 (1998), S. 67-72 
    Details
    ISSN: 1432-0762
    Keywords: Key words Nestmate recognition ; Kin recognition ; DNA fingerprinting ; Aggression ; Formica ; Relatedness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Genetic relatedness of the mound-building ant Formica pratensis was determined by means of microsatellite DNA polymorphism, and its impact on nestmate recognition was tested in a population in Southern Sweden (Oeland). Recognition between nests was measured by testing aggression levels between single pairs of workers. The genetic distances of nests (Nei's genetic distance) and the spatial distance of nests were correlated and both showed a strong relation to the aggression behavior. Multiple regression analysis revealed a stronger impact of genetic relatedness rather than spatial distances on aggression behavior. Neighbouring nests were more closely related than distant nests, which may reflect budding as a possible spreading mechanism. The genetic distance data showed that nestmate recognition was strongly genetically influenced in F. pratensis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002650050467
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    Paper (German National Licenses)
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