APPARENT PARTHENOGENESIS IN NATURE, IN A FORM OF FISH OF HYBRID ORIGIN.

@article{Hubbs1932APPARENTPI,
  title={APPARENT PARTHENOGENESIS IN NATURE, IN A FORM OF FISH OF HYBRID ORIGIN.},
  author={C. Hubbs and L. C. Hubbs},
  journal={Science},
  year={1932},
  volume={76 1983},
  pages={
          628-30
        }
}
Geographic variation in female mate-copying in the species complex of a unisexual fish, Poecilia formosa
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This work shows that mate-copying is exhibited by the sexual species P. mexicana and P. latipinna, and the asexual P. formosa, the only known case of heterospecific mate- Copying in the Amazon molly and hypothesizes that an added benefit to males lies in the signal value of copulations. Expand
A Sexual Preference in the Amazon Molly, Poecilia formosa
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The molecular phylogenetic evidence and the failure to resynthesize the gynogenetic P. formosa together with the old age of the species indicate that some unisexual vertebrates might be rare not because they suffer the long‐term consequences of clonal reproduction but because they are only very rarely formed as a result of complex genetic preconditions necessary to produce viable and fertile clonal genomes and phenotypes. Expand
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A comparison of morphology of the external and internal insemination apparatus and the gonads, sperm ploidy and behaviour, to laboratory-bred F(1) hybrids revealed that the triploid P. formosa males, though producing mostly aneuploid sperm, are partly functional males that differ mainly in sperm maturation and sexual motivation from gonochoristic P.formosa males. Expand
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Differential interests between the sexes regarding the number of copulations can result in sexual harassment, and other factors such as food competition and female mate choice may affect female feeding efficiency. Expand
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Characterizing the behavioral syndromes in two sympatric, closely related species found that both species have similar personalities consisting of a correlation between exploration and activity, and explored the relationship between a stress response hormone, cortisol, and behavioral type, and did not detect a relationship. Expand
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