Regular PaperThe allometry of fluctuating asymmetry in southern African plants: flowers and leaves

@article{Jennions1996RegularPA,
  title={Regular PaperThe allometry of fluctuating asymmetry in southern African plants: flowers and leaves},
  author={Michael D. Jennions},
  journal={Biological Journal of The Linnean Society},
  year={1996},
  volume={59}
}
  • M. Jennions
  • Published 1 October 1996
  • Environmental Science
  • Biological Journal of The Linnean Society
Several studies of fluctuating asymmetry (FA) in animals show that secondary sexual characters used in signalling have a negative relationship between size and asymmetry. Larger sexual traits are presumably more costly to produce, which should lead to greater developmental stress and corresponding increases in asymmetry. In the absence of among individual variation in the ability to handle these costs, the relationship between size and asymmetry should thus be positive. A negative relationship… 

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References

SHOWING 1-10 OF 60 REFERENCES
Patterns of fluctuating asymmetry in flowers: Implications for sexual selection in plants
TLDR
Patterns of fluctuating asymmetry in plants suggest that (i) the degree of asymmetric in flowers signals different aspects of quality than does the degree in leaves, and that (ii) fluctuatingymmetry in flowers often reflects the phenotypic quality of individual plants.
Bumblebee preference for symmetrical flowers.
  • A. Møller
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 1995
TLDR
Floral fluctuating asymmetry, which reflects general developmental homeostasis, may explain the bumblebee preference for flower symmetry in E. angustifolium and other outcrossing plant species.
Patterns of fluctuating asymmetry in avian feather ornaments: implications for models of sexual selection
  • A. Møller, J. Höglund
  • Psychology
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1991
TLDR
The predictions that sexual ornaments should show a larger degree of fluctuating asymmetry than other morphological traits or than homologous traits in non ornamented species and the negative relation between ornament size and degree of asymmetry suggest that fluctuate asymmetry in ornament reliably reflects male phenotypic quality.
On the function of flowers
  • G. Bell
  • Biology
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1985
TLDR
It was found that the performance of a given flower was substantially affected by other flowers in the same compact inflorescence (Asclepias), though not by other inflorescence on the same plant nor by those borne by nearby plants (Fragaria, Impatiens).
Pollinator preference for symmetrical flowers and sexual selection in plants
TLDR
The relationship between pollination and floral asymmetry in ten different flowering plant species in Spain, Denmark, and Sweden was studied, finding that handling time of flowers was unaffected by asymmetry since insect visits to symmetrical flowers lasted as long as visits to asymmetrical flowers.
MEASUREMENTS OF SELECTION IN A HERMAPHRODITIC PLANT: VARIATION IN MALE AND FEMALE POLLINATION SUCCESS
  • D. Campbell
  • Biology, Medicine
    Evolution; international journal of organic evolution
  • 1989
TLDR
A phenotypic selection analysis revealed that selection due to male‐male competition during pollination was capable of delaying flowering date and widening corolla tubes by 0.22 and 0.24 standard‐deviation units, respectively, in a single generation.
Pollen vigour and the potential for sexual selection in plants
TLDR
It was found that pollen competition was common in populations of wild rose mallow (Hibiscus moscheutos), and differences between pairs of individuals in pollen-tube growth rates were consistent across maternal plants, suggesting that sexual selection can occur.
Developmental Instability in Leaves and Flowers of NICOTIANA TABACUM.
TLDR
This paper deals with the results of a few experimental studies on developmental instability in foliar and floral organs of Nicotiana tabacum and concludes that the within-genotype variability in those characters was again genotype-dependent.
SEXUAL SELECTION IN THE BARN SWALLOW (HIRUNDO RUSTICA). IV. PATTERNS OF FLUCTUATING ASYMMETRY AND SELECTION AGAINST ASYMMETRY
TLDR
Levels of fluctuating asymmetry in barn swallows are associated with differences in fitness, and most morphological traits exhibited intermediate repeatabilities between years, with the exception of male and female outer tail length, which were highly repeatable.
...
...