Seed dispersal of big-leaf mahogany (Swietenia macrophylla) and its role in natural forest management in the Yucat¡n Peninsula Mexico

Cámara-Cabrales L., . and Kelty M. J., . Seed dispersal of big-leaf mahogany (Swietenia macrophylla) and its role in natural forest management in the Yucat¡n Peninsula Mexico. pp. 235-245. ISSN 0128-1283

As part of efforts to design appropriate silvicultural methods for sustainable forest management of big-leaf mahogany (Swietenia macrophylla: Meliaceae) in natural mixed forests of Quintana Roo Mexico a study of seed dispersal of 11 mahogany seed trees was undertaken. Both small (5074 cm diameter at breast height dbh) and large (75100 cm dbh) seed trees showed seed distributions that were skewed to the west generally matching the prevailing easterly trade winds. Total mean seed production of trees in the smaller size class was one-half of that of the large trees. Maximum seed dispersal distance was 50 m in the westerly directions (NWWSW) and only 2030 m in other directions. Total seed dispersal areas were 0.4 and 0.5 ha for the small and large trees respectively. These results are important for designing seed tree or shelterwood regeneration methods for mahogany; they provide guidelines for creating the size and spatial layout of an overstorey felling and site preparation treatment that would match the dispersal area.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/v21n3/23...

Abstract

As part of efforts to design appropriate silvicultural methods for sustainable forest management of big-leaf mahogany (Swietenia macrophylla: Meliaceae) in natural mixed forests of Quintana Roo Mexico a study of seed dispersal of 11 mahogany seed trees was undertaken. Both small (5074 cm diameter at breast height dbh) and large (75100 cm dbh) seed trees showed seed distributions that were skewed to the west generally matching the prevailing easterly trade winds. Total mean seed production of trees in the smaller size class was one-half of that of the large trees. Maximum seed dispersal distance was 50 m in the westerly directions (NWWSW) and only 2030 m in other directions. Total seed dispersal areas were 0.4 and 0.5 ha for the small and large trees respectively. These results are important for designing seed tree or shelterwood regeneration methods for mahogany; they provide guidelines for creating the size and spatial layout of an overstorey felling and site preparation treatment that would match the dispersal area.

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Item Type:	Article
AGROVOC Term:	Seed dispersal
AGROVOC Term:	Swietenia macrophylla
AGROVOC Term:	Natural forests
AGROVOC Term:	Forest management
AGROVOC Term:	Meliaceae
AGROVOC Term:	Mixed forests
AGROVOC Term:	Seed production
AGROVOC Term:	Silviculture
AGROVOC Term:	Wind direction
AGROVOC Term:	Harvesting
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/21682

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