Light conditions imposed by canopy : allometric strategies of an understorey palm (Geonoma schottiana Mart.) in Atlantic forest

Jeannot K. K., . and Diniz E. S., . and Fontes M. A. L., . and Mendes C. N., . and Terra M. C. N. S., . Light conditions imposed by canopy : allometric strategies of an understorey palm (Geonoma schottiana Mart.) in Atlantic forest. pp. 332-342. ISSN 0128-1283

One of the main factors driving high plant diversity in tropical forests is vertical stratification which is determined by the ability of an individual to absorb light. The study aimed to evaluate the growth and reproduction strategies of the understorey palm species Geonoma schottiana based on allometric relationships and under different light conditions in a semi-deciduous Atlantic forest. For this purpose architectural parameters of 25 fruiting individuals were sampled from which the number of fruits and infructescences were counted. The following parameters were also estimated: forest stratification canopy (height and openness) crown variants (diameter depth openness and volume) and total height of the palm. A significant increment was found in the number of fruits with the increase in canopy opening and crown depth while the number of infructescences increased with the total height of the palm. The proportion of variance explained by the number of infructescences was higher than that which was explained by the number of fruits. It was concluded that the fitness (i.e. production of fruits and infructescences) of G. schottiana is greatly influenced by the size of the individual (crown depth and total height) and canopy opening.

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Abstract

One of the main factors driving high plant diversity in tropical forests is vertical stratification which is determined by the ability of an individual to absorb light. The study aimed to evaluate the growth and reproduction strategies of the understorey palm species Geonoma schottiana based on allometric relationships and under different light conditions in a semi-deciduous Atlantic forest. For this purpose architectural parameters of 25 fruiting individuals were sampled from which the number of fruits and infructescences were counted. The following parameters were also estimated: forest stratification canopy (height and openness) crown variants (diameter depth openness and volume) and total height of the palm. A significant increment was found in the number of fruits with the increase in canopy opening and crown depth while the number of infructescences increased with the total height of the palm. The proportion of variance explained by the number of infructescences was higher than that which was explained by the number of fruits. It was concluded that the fitness (i.e. production of fruits and infructescences) of G. schottiana is greatly influenced by the size of the individual (crown depth and total height) and canopy opening.

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Item Type:	Article
AGROVOC Term:	Arecaceae
AGROVOC Term:	Understorey
AGROVOC Term:	Palms
AGROVOC Term:	Allometry
AGROVOC Term:	Resource allocation
AGROVOC Term:	Canopy
AGROVOC Term:	Crown
AGROVOC Term:	Diameter
AGROVOC Term:	Forests
AGROVOC Term:	Fruits
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8206

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