Dioecy hotspots in Southeast Florida (U.S.A.), especially Saw Palmetto (Serenoa repens, Arecaceae) thickets

Authors

  • George K. Rogers Palm Beach State College

DOI:

https://doi.org/10.17348/jbrit.v18.i1.1345

Keywords:

Breeding systems, dioecy rates, hummocks, seedling recruitment, shade, Florida wetland ecology

Abstract

A survey of woody marshland hummocks, of Saw Palmetto (Serenoa repens, Arecaceae) thickets, and of additional Southeast Florida habitats revealed multiple sites with dioecy rates of 50–100%, especially in the Saw Palmetto thickets. These rates exceeded any encountered for woody species in a literature review globally or for Florida. A particularly notable feature of the thicket sites is extreme thick low-elevation palm frond canopy coverage, consistent with the historical perspective that a benefit of dioecy is sexual selection for seed quality where harsh ecological filters limit establishment.

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Published

2024-07-09

How to Cite

Rogers, G. K. (2024). Dioecy hotspots in Southeast Florida (U.S.A.), especially Saw Palmetto (Serenoa repens, Arecaceae) thickets. Journal of the Botanical Research Institute of Texas, 18(1), 149–162. https://doi.org/10.17348/jbrit.v18.i1.1345