TREE COMPOSITION AND STRUCTURE OF A SEASONALLY DRY TROPICAL FOREST AT LA SEPULTURA BIOSPHERE RESERVE, CHIAPAS
DOI:
https://doi.org/10.29298/rmcf.v3i12.507Keywords:
Seasonal dry tropical forest, species diversity, Importance value index, forestry value index, floristic similarity, Sierra Madre de ChiapasAbstract
The structure and composition of tree vegetation were studied in three environmental conditions (CA): Stream, Ravine, and Hill. Three sampling units (UM) of 20 x 30 m each were established per EC, in which diameter at breast height (DBH), total height and canopy diameters were measured in poles (DBH ≥ 2.5 cm). In thickets (DBH < 2.5 cm, height ≥ 1.3 m) and saplings (height < 1.3 m), height was measured. Several indices were calculated: importance value (IVI), forestry value (FVI), species diversity (Shannon: H’), and floristic similarity (Sorensen: So). A total of 83 tree species were found. For poles, the most important species were Lonchocarpus minimiflorus (FVI = 25.9; IVI = 16.8) in Stream, Adenaria floribunda (FVI = 17.3; IVI = 14.7) in Ravine, and Guazuma ulmifolia (FVI = 27.6; IVI = 18.5) in Hill. For thickets, Piper sp. (IVI = 29.1) in Stream, Eugenia capulli (IVI = 14.9) in Ravine, y Cassia sp. (IVI = 20.6) in Hill. For saplings, L. minimiflorus (IVI = 27.1) in Stream, and Cassia sp. (IVI = 15.3) in Ravine, and Lantana achyranthifolia (IVI = 26.8) in Hill. Species diversity was significantly higher (p<0.05) in the SU of Stream (H’ = 2.21-2.92) and Ravine (H’ = 2.37-2.98) than in those of Hill (H’ = 0.92-2.44). Floristic similarity was higher among the SU of Ravine (So = 0.46-0.71) and lower among those of Stream (So = 0.33-0.39). The structural attributes and floristic composition suggest that Stream and Ravine have mature forests, while Hill shows an early secondary forest.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in Revista Mexicana de Ciencias Forestales accept the following conditions:
In accordance with copyright laws, Revista Mexicana de Ciencias Forestales recognizes and respects the authors’ moral right and ownership of property rights which will be transferred to the journal for dissemination in open access.
All the texts published by Revista Mexicana de Ciencias Forestales –with no exception– are distributed under a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows third parties to use the publication as long as the work’s authorship and its first publication in this journal are mentioned
The author(s) can enter into independent and additional contractual agreements for the nonexclusive distribution of the version of the article published in Revista Mexicana de Ciencias Forestales (for example, include it into an institutional repository or publish it in a book) as long as it is clearly and explicitly indicated that the work was published for the first time in Revista Mexicana de Ciencias Forestales.
For all the above, the authors shall send the form of Letter-transfer of Property Rights for the first publication duly filled in and signed by the author(s). This form must be sent as a PDF file to: ciencia.forestal2@inifap.gob.mx
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International license.
