Severely reduced sexual reproduction in northern populations of a clonal plant, Decodonverticillatus (Lythraceae)

@article{Dorken2001SeverelyRS,
  title={Severely reduced sexual reproduction in northern populations of a clonal plant, Decodonverticillatus (Lythraceae)},
  author={Marcel E. Dorken and Chris Eckert},
  journal={Journal of Ecology},
  year={2001},
  volume={89}
}
1  In flowering plants the balance between sexual and clonal, asexual reproduction can vary widely. We quantified variation in sexual reproduction in a tristylous, clonal, aquatic plant, Decodon verticillatus, and investigated the role of ecological and genetic factors in causing this variation. 2  We surveyed components of sexual fertility and vegetative growth in 28 populations distributed along a 500‐km latitudinal transect in New England, USA. Northerly populations tend to be monomorphic (M… 
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If different reproductive modes represent adaptive strategies for plants in different environments, it is expected that most of the resources should be allocated to sexual reproduction in habitats with fluctuating environmental conditions and strong competition, while clonal growth should be dominant in stable habitats.

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...

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