Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia

The study was conducted at the 50-ha plot of Pasoh Forest Reserve, Negeri Sembilan, Peninsular Malaysia to assess the ecological distribution of Mangifera and to solve some taxonomic problems on doubtful species by clearly circumscribing the limits among taxa by using morphological, anatomical an...

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Main Author:	Linatoc, Alona Cuevas
Format:	Thesis
Language:	English English
Published:	1999
Subjects:	Anacardiaceae - Johor - Pasoh Forest Reserve - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/9986/1/FH_1999_10_A.pdf
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id	my-upm-ir.9986
record_format	uketd_dc
spelling	my-upm-ir.99862011-02-28T04:57:25Z Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia 1999 Linatoc, Alona Cuevas The study was conducted at the 50-ha plot of Pasoh Forest Reserve, Negeri Sembilan, Peninsular Malaysia to assess the ecological distribution of Mangifera and to solve some taxonomic problems on doubtful species by clearly circumscribing the limits among taxa by using morphological, anatomical and DNA sequences evidences. Thirteen Mangifera taxa were recorded to a total population of 1,202 stems. Mangifera quadrifida is the most abundant with 275 stems, followed by M foetida with 208 stems. The least is M swintonioides with only two trees, both more than 10 cm dbh. Mangifera quadrifida var. longipetiolata has 16 trees all less than 10 cm dbh. The common mango, M indica has only 80 stems. Mangifera griffithii has the most number of trees with dbh exceeding 10 cm, thereby giving the highest estimates in terms of basal area (0. 045 m²ha⁻¹), volume (0. 63 m³ha⁻¹), and above ground biomass (0. 51 tha⁻¹). A total of 163 dead trees were recorded since the initial survey in 1985. High mortality (85%) was found to be trees of less than 10 cm dbh. Mortality of seedlings was primarily caused by burrowing and nest building by wild pigs, while death of big trees was caused by termite attack. Taxonomic review of the genus was carried out exploiting morphological and anatomical characters. However, due to unavailability of reproductive characters throughout the entire course of the study, investigation was carried out making use of vegetative characters alone. Given all the morphological and anatomical evidences, the genus can be divided into two subgenera viz. Limus and Mangifera. This subdivision is further supported by examining the molecular phylogeny of 13 Mangifera taxa using nucleotide sequences of the intergenic spacer region between trnL-trnF of the chloroplast DNA. In the phylogenetic study, two major clades were formed from the monophyletic tree. It is noted that M subsessilifolia, a species incertae was in a clade with M lagenifera and M superba of the subgenus Limus. The second clade on the other hand was composed of species belonging to the subgenus Mangifera except for M foetida, which was classified under subgenus Limus. However, M macrocarpa of subgenus Limus formed a singleton as did M gracilipes of subgenus Mangifera. The divergence of the genus Mangifera is apparent from the heterogeneous feature of the subgenera. Further analysis of other molecular markers from different genes or genomes and consideration of other species of wild mangoes are necessary to infer a stronger phylogenetic analysis of this taxon. Anacardiaceae - Johor - Pasoh Forest Reserve - Case studies 1999 Thesis http://psasir.upm.edu.my/id/eprint/9986/ http://psasir.upm.edu.my/id/eprint/9986/1/FH_1999_10_A.pdf application/pdf en public masters Universiti Putra Malaysia Anacardiaceae - Johor - Pasoh Forest Reserve - Case studies Faculty of Forestry English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Anacardiaceae - Johor - Pasoh Forest Reserve - Case studies
spellingShingle	Anacardiaceae - Johor - Pasoh Forest Reserve - Case studies Linatoc, Alona Cuevas Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
description	The study was conducted at the 50-ha plot of Pasoh Forest Reserve, Negeri Sembilan, Peninsular Malaysia to assess the ecological distribution of Mangifera and to solve some taxonomic problems on doubtful species by clearly circumscribing the limits among taxa by using morphological, anatomical and DNA sequences evidences. Thirteen Mangifera taxa were recorded to a total population of 1,202 stems. Mangifera quadrifida is the most abundant with 275 stems, followed by M foetida with 208 stems. The least is M swintonioides with only two trees, both more than 10 cm dbh. Mangifera quadrifida var. longipetiolata has 16 trees all less than 10 cm dbh. The common mango, M indica has only 80 stems. Mangifera griffithii has the most number of trees with dbh exceeding 10 cm, thereby giving the highest estimates in terms of basal area (0. 045 m²ha⁻¹), volume (0. 63 m³ha⁻¹), and above ground biomass (0. 51 tha⁻¹). A total of 163 dead trees were recorded since the initial survey in 1985. High mortality (85%) was found to be trees of less than 10 cm dbh. Mortality of seedlings was primarily caused by burrowing and nest building by wild pigs, while death of big trees was caused by termite attack. Taxonomic review of the genus was carried out exploiting morphological and anatomical characters. However, due to unavailability of reproductive characters throughout the entire course of the study, investigation was carried out making use of vegetative characters alone. Given all the morphological and anatomical evidences, the genus can be divided into two subgenera viz. Limus and Mangifera. This subdivision is further supported by examining the molecular phylogeny of 13 Mangifera taxa using nucleotide sequences of the intergenic spacer region between trnL-trnF of the chloroplast DNA. In the phylogenetic study, two major clades were formed from the monophyletic tree. It is noted that M subsessilifolia, a species incertae was in a clade with M lagenifera and M superba of the subgenus Limus. The second clade on the other hand was composed of species belonging to the subgenus Mangifera except for M foetida, which was classified under subgenus Limus. However, M macrocarpa of subgenus Limus formed a singleton as did M gracilipes of subgenus Mangifera. The divergence of the genus Mangifera is apparent from the heterogeneous feature of the subgenera. Further analysis of other molecular markers from different genes or genomes and consideration of other species of wild mangoes are necessary to infer a stronger phylogenetic analysis of this taxon.
format	Thesis
qualification_level	Master's degree
author	Linatoc, Alona Cuevas
author_facet	Linatoc, Alona Cuevas
author_sort	Linatoc, Alona Cuevas
title	Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
title_short	Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
title_full	Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
title_fullStr	Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
title_full_unstemmed	Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia
title_sort	ecology and taxonomy of mangifera species (anacardiaceae) in the 50-ha plot of pasoh forest reserve, peninsular malaysia
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Forestry
publishDate	1999
url	http://psasir.upm.edu.my/id/eprint/9986/1/FH_1999_10_A.pdf
_version_	1747811039485886464

Ecology And Taxonomy of Mangifera Species (Anacardiaceae) in the 50-HA Plot of Pasoh Forest Reserve, Peninsular Malaysia

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