Composition, diversity and distribution of woody species in relation to vertical stratification of a tropical wet evergreen forest in Bangladesh

Feroz, S. M.; Mamun, Abdullah Al; Kabir, Enamul

doi:10.1016/j.gecco.2016.08.012

Cited by 14 publications

(18 citation statements)

References 21 publications

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“…In addition, the degree of vertical stratification is an important factor for maintaining higher woody species diversity in natural forests (Feroz et al 2006(Feroz et al , 2008. In conformity with the present study, the tropical wet evergreen forests of Bangladesh also showed five distinct strata, with the highest species diversity in the ground strata (Feroz et al 2016). Generally, the lower strata support the high species richness in a forest (Feroz et al 2006).…”

Section: Discussionsupporting

confidence: 87%

Plant diversity patterns and conservation status of eastern Himalayan forests in Arunachal Pradesh, Northeast India

et al. 2017

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Background: The State of Arunachal Pradesh is part of the Himalaya biodiversity hotspots distributed over an area with the largest elevation gradients in the world, ranging from lowland tropical forests to alpine vegetation. Methods: The vegetation was surveyed along an elevation gradient ranging from 87 to 4161 m in 354 belt transects (500 m × 10 m in size) and analyzed using various ecological indices. Results: A total of 482 (458 identified, 24 unidentified) plants were recorded in the present study, of which 153 are nonwoody herbs and grasses (145 identified) belonging to 55 families, and 329 are woody trees and shrubs (313 identified) belonging to 74 families. The 458 identified species belong to 117 families and 251 genera, of which 94.10% are phenerogams (Angiosperms: 421 species [spp.] and Gymnosperms: 10 spp.) and 5.90% cryptogams (Pteridophytes: 27 spp.). The family Fabaceae contributed the greatest species diversity with a total of 27 plant species (Papilionaceae: 10 spp., Mimosaceae: 9 spp. and Caesalpinaceae: 8 spp.) followed by Poaceae (21 spp.), Ericaceae (20 spp.), Asteraceae (18 spp.), Lauraceae (17 spp.), Euphorbiaceae (16 spp.), Urticaceae (15 spp.) and 49 monotypic families. The most dominant trees were Castanopsis indica (24 individuals per ha), followed by Quercus semicarpifolia (12 individuals per ha) and Pinus roxburghii (12 individuals per ha) and some bamboos (Dendrocalamus strictus: 69 individuals per ha; Bambusa pallida: 16 individuals per ha). The studied forest stands were rich in various bamboos; a total of 14 different bamboos were recorded in the present study including Dendrocalamus strictus, Bambusa tulda, B. pallida etc. Common IUCN red-listed species were Aquilaria malaccensis, Begonia tessaricarpa, Gledetsia assamica, Gymnocladus assamicus, Livistona jenkinsiana, Rhododendron meddenii, Rhododendron thomsonii collected from the Dirrang, Tawang, Yamcha, Itanagar, Along and Mebo areas of Arunachal Pradesh. Conclusion:The results confirm that the Eastern Himalayan forests are very rich in terms of species diversity which decreases with increasing elevation. Species richness and distribution patterns of plants are largely regulated by altitude and other environmental factors. Intensive monitoring and management is needed to protect this fragile ecosystem from the ever-increasing anthropogenic pressure and changing climatic conditions.

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Section: Discussionsupporting

confidence: 87%

Plant diversity patterns and conservation status of eastern Himalayan forests in Arunachal Pradesh, Northeast India

et al. 2017

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“…2016), in Tanzania (Giliba . 2011), in Bangladesh (Feroz 2016). et al Despite its great diversity, tropical forests have experienced the highest diversity loss.…”

Section: Introductionmentioning

confidence: 99%

Flora Diversity, Composition and Ecology in Besiq Bermai Tropical Forest of Damai District, East Kalimantan

Sofiah

Metusala²,

Trimanto³

et al. 2018

BIOTROPIA

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Besiq Bermai Forest is part of Kalimantan forests known for vast plant diversity. The present study aimed to investigate flora diversity, composition, and ecology in Besiq Bermai Forest to support the management of biodiversity and forest conservation. Thirteen plots were established with different sizes of plots (100 m x 20 m plots for trees; 40 m x 5 m plots for saplings; and 5 m x 5 m plots for understory). Data recorded included plant species name and individual number of each plant species. Data analysed were Shannon-Wiener diversity index, Relative Density, Relative Frequency, Relative Dominance and Important Value Index. The principal component analysis (PCA) was performed to determine relationship between edaphic components and flora occurrence. The results showed that there were 93 species of trees (belonging to 48 genera and 22 families), 112 species of saplings (belonging to 62 genera and 43 families), and 48 species of understory (belonging to 28 genera and 20 families). Shannon-Wiener diversity index (H') were 6.05, 6.25 and 3.26 for tree, saplings and understory, respectively. The most common family for tree and saplings in the forest ecosystem in this area was Dipterocarpaceae (Shorea spp). Species of tree with the highest importance value index were Dillenia excelsa, Syzygium sp. and Shorea parvifolia. The highest importance value index for species of saplings were Macaranga triloba and Shorea parvifolia; and for species of understory were Phrynium jagorianum. Ecological (edaphic) factors affecting the occurence and establishment of flora in Bermai forest were total N and C/N ratio. The present study has implication for the management of biodiversity and forest conservation.

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“…Plants were identified using plant guides and manuals (Ashton et al 1997, Vlas & Vlas 2000. They were categorized into families, genera, species, ecological groups (climax, pioneer and invasive and non-invasive), origin (endemic, native and exotic) and seed dispersal modes (zoochory, anemochory and autochory) by referring to manuals and available literature (Kueffer et al 2007, Nagaraja et al 2011, Feroz et al 2016, Herrera-Peraza et al 2016, Tripathi et al 2018.…”

Section: Vegetation Samplingmentioning

confidence: 99%

Restoration Success Evaluation of a Thinned and Enriched Pine Plantation in Sri Lanka

Jayawardhane¹,

Gunaratne²

2020

JTFS

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Enrichment of monoculture plantations with broad-leaved species convert poorly managed exotic plantations into mixed species woodlands with enhanced ecosystem services. However, the effect of enrichment planting on the recruitment of plant diversity is poorly understood. This study aims to investigate the effect of enrichment planting in an eleven-year-old restored Pine (Pinus caribaea Morelet) plantation (RP) and a 25-30-year-old unrestored Pine plantation (UP) in Hantana, Sri Lanka. All naturally regenerated woody species were tagged, identified, and counted. The height and the diameter at breast height were measured. Nearly four times more woody species emerged from RP than UP. However, majority of species in both RP and UP were represented by the exotic invasive tree species Alstonia macrophylla Wall. ex G. Don. The mean density of seedlings of woody species was higher in RP than UP. The Shannon-Wiener diversity index was higher in RP than UP for all different life stages. Endemics were only recorded in RP. Since improved plantation structure and higher diversity was recorded in RP than UP, thinning followed by enrichment planting can be used to restore monoculture Pine plantation into mixed species plantations.

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Composition, diversity and distribution of woody species in relation to vertical stratification of a tropical wet evergreen forest in Bangladesh

Cited by 14 publications

References 21 publications

Plant diversity patterns and conservation status of eastern Himalayan forests in Arunachal Pradesh, Northeast India

Plant diversity patterns and conservation status of eastern Himalayan forests in Arunachal Pradesh, Northeast India

Flora Diversity, Composition and Ecology in Besiq Bermai Tropical Forest of Damai District, East Kalimantan

Restoration Success Evaluation of a Thinned and Enriched Pine Plantation in Sri Lanka

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