The exotic palm Roystonea oleracea (Jacq.) O. F. Cook (Arecaceae) on an island within the Atlantic Forest Biome: naturalization and influence on seedling recruitment
Zucaratto, Rodrigo, Pires, Alexandra dos Santos
Acta Bot. Bras.
DATA DE PUBLICAÇÃO
Here, we investigated the population structure of the exotic palm Roystonea oleracea in a swamp on an island within the Atlantic Forest Biome, evaluating its influence on the seedling recruitment of other plant species. The population structure was analyzed in six 4 × 30 m plots, within which we categorized all individuals by ontogenetic stage. The influence of R. oleracea on the seedling recruitment of other plant species was evaluated in 2 × 2 m plots established beneath palm crowns and in adjacent areas without palms. We recorded 53 R. oleracea individuals. The majority (56.6%) of the R. oleracea population was composed of immature adults, followed by mature adults. The density, richness and diversity of seedling species differed significantly between areas beneath and away from palms, the values being lower beneath R. oleracea crowns. Our results indicate that R. oleracea recruitment does not require human intervention, the number of reproductive individuals characterizing successful naturalization. This underscores the need for management policies aimed at palm eradication in order to avoid reductions in biodiversity.
- The exotic palm Roystonea oleracea(Jacq.) O.F. Cook as a rural biotype for Rhodnius neglectus Lent, 1954, in Caçu, State of Goiás
- Palm (Arecaceae) Communities in the Brazilian Atlantic Forest: a Phytosociological Study
- Native understory palms (Arecaceae) of the Atlantic Forest in Santa Catarina, Southern Brazil
- Traditional Use of Palms (Arecaceae) in the Atlantic Forest in Southern Santa Catarina, Brazil
- Espécies de Scarabaeidae fitófagos (Insecta: Coleoptera) associadas ao sistema radicular de Acrocomia aculeata (Jacq.) Lodd. ex Mart. (Arecaceae)