The function of stilt roots in the growth strategy of Socratea exorrhiza (Arecaceae) at two neotropical sites
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Universidad de Costa Rica
2007
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876426238604607488 |
|---|---|
| author | Gregory R. Goldsmith |
| author_facet | Gregory R. Goldsmith |
| contents | The function of stilt roots in the growth strategy of Socratea exorrhiza (Arecaceae) at two neotropical sites Gregory R. Goldsmith Rakan A. Zahawi Biología light gaps stilt roots palm architecture Socratea exorrhiza Barro Colorado Island Arboreal palms have developed a variety of structural root modifications and systems to adapt to the harsh abiotic conditions of tropical rain forests. Stilt roots have been proposed to serve a number of functions including the facilitation of rapid vertical growth to the canopy and enhanced mechanical stability. To examine whether stilt roots provide these functions, we compared stilt root characteristics of the neotropical palm tree Socratea exorrhiza on sloped (>20º) and flat locations at two lowland neotropical sites. S. exorrhiza (n=80 trees) did not demonstrate differences in number of roots, vertical stilt root height, root cone circumference, root cone volume, or location of roots as related to slope. However, we found positive relationships between allocation to vertical growth and stilt root architecture including root cone circumference, number of roots, and root cone volume. Accordingly, stilt roots may allow S. exorrhiza to increase height and maintain mechanical stability without having to concurrently invest in increased stem diameter and underground root structure. This strategy likely increases the species ability to rapidly exploit light gaps as compared to non-stilt root palms and may also enhance survival as mature trees approach the theoretical limits of their mechanical stability. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44912352005 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3-4 Vol.55 |
| format | Artículo científico |
| id | redalyc_44912352005 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad de Costa Rica |
| spellingShingle | The function of stilt roots in the growth strategy of Socratea exorrhiza (Arecaceae) at two neotropical sites Gregory R. Goldsmith Biología light gaps stilt roots palm architecture Socratea exorrhiza Barro Colorado Island The function of stilt roots in the growth strategy of Socratea exorrhiza (Arecaceae) at two neotropical sites Gregory R. Goldsmith Rakan A. Zahawi Biología light gaps stilt roots palm architecture Socratea exorrhiza Barro Colorado Island Arboreal palms have developed a variety of structural root modifications and systems to adapt to the harsh abiotic conditions of tropical rain forests. Stilt roots have been proposed to serve a number of functions including the facilitation of rapid vertical growth to the canopy and enhanced mechanical stability. To examine whether stilt roots provide these functions, we compared stilt root characteristics of the neotropical palm tree Socratea exorrhiza on sloped (>20º) and flat locations at two lowland neotropical sites. S. exorrhiza (n=80 trees) did not demonstrate differences in number of roots, vertical stilt root height, root cone circumference, root cone volume, or location of roots as related to slope. However, we found positive relationships between allocation to vertical growth and stilt root architecture including root cone circumference, number of roots, and root cone volume. Accordingly, stilt roots may allow S. exorrhiza to increase height and maintain mechanical stability without having to concurrently invest in increased stem diameter and underground root structure. This strategy likely increases the species ability to rapidly exploit light gaps as compared to non-stilt root palms and may also enhance survival as mature trees approach the theoretical limits of their mechanical stability. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44912352005 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3-4 Vol.55 |
| title | The function of stilt roots in the growth strategy of Socratea exorrhiza (Arecaceae) at two neotropical sites |
| topic | Biología light gaps stilt roots palm architecture Socratea exorrhiza Barro Colorado Island |
| url | https://www.redalyc.org/articulo.oa?id=44912352005 |