Species Diversity and Structure of an Intact Freshwater Swamp Forest in the Niger Delta

Igu, Nwabueze I.

doi:10.4236/ojf.2017.72015

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…to have anti-diarrhoeal activity [7], to treat venereal diseases, urogenital infections, haemorrhoids, rheumatism, stomach ache and intestinal worms, and to relieve pains such as headaches, backache, sore throat and painful menstruation [8] [9]. In northern Nigeria, Detarium senegalense is used in cosmetics [10].…”

Section: Introductionmentioning

confidence: 99%

Quantification of Total Phenols, Total Flavonoids, Total Anthocyanins and Evaluation of Antioxidant and Antiradical Activities of Detarium Senegalense Extracts from Chad

Betoloum,

Mbaihougadobe,

Mbaiogaou

et al. 2024

ABC

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The aim of the present work is to assess the value of Detarium Senegalense by determining the content of total phenols, total flavonoids and total anthocyanins, and by evaluating the free radical scavenging activity of Detarium Senegalense extracts. For this purpose, sequential extraction using solvents of increasing polarity was essential. The various extracts obtained underwent phytochemical and biochemical analyses. Phytochemical screening revealed the presence of flavonoids, alkaloids, tannins, polyphenols, anthocyanins and steroids/terpenes. Quantitative analysis of total polyphenols, total flavonoids and total anthocyanins yielded the following results: total flavonoids (0.803 ± 0029 mg EQ/100g P for acetone extract of roots and 0.871 ± 0.401 mg EQ/100g P for methanol extract of leaves); total polyphenols (23.298 ± 12.68 mg EAG/100g P for acetone extract of roots and 24.69 ± 0.49 401 mg EAG/100g P for methanol extract of leaves); total monomeric anthocyanins (44.697 ± 0.939 mg EC3G/100g P and 16.699 ± 0.193 mg EC3G/100g P respectively for acetone and methanol extracts of stem bark). DPPH free radical scavenging activity was 1.674 ± 0.023 mg/mL for the acetone extract and 0.934 ± 0.24 mg/mL for the methanol extract of roots.

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Section: Introductionmentioning

confidence: 99%

Quantification of Total Phenols, Total Flavonoids, Total Anthocyanins and Evaluation of Antioxidant and Antiradical Activities of Detarium Senegalense Extracts from Chad

Betoloum,

Mbaihougadobe,

Mbaiogaou

et al. 2024

ABC

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“…To achieve this, the objectives are to: 1) document the existing composition of the ecosystem and show their varied abundance at the species and family levels, 2) show the variations in species richness, diversity and density of the ecosystem, 3) determine the variations that exist in the biodiversity indices within and across the sites and 4) compare the findings with other studies conducted elsewhere and show its priorities for conservation management. Part of the data on undisturbed freshwater swamp forest (for Otuwe forest) have been previously reported in Igu (2017b), but was used as it provided a basis for comparison with other results from the disturbed sites.…”

Section: Introductionmentioning

confidence: 99%

Floristic Composition and Diversity of Freshwater Swamp Forests in the Niger Basin of Nigeria

Igu¹,

Marchant²

2018

OJF

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Freshwater swamp forests are wetland ecosystems with poorly understood ecology. With increasing degradation across the Niger basin (where it is the most extensive across West Africa), it is deemed important to understand its distribution, patterns and composition. This is aimed at both increasing botanical inventories in the ecosystem and also elucidate vital steps that could guide its effective conservation. This study assessed the floristic composition and diversity across 16 one hectare forest plots and sought to show how varied the sites were in terms of diversity, stem density and basal area. The survey showed that the area had 116 species within 82 genera and 36 families. The number of species found in each of the disturbed sites was generally higher than the intact forest sites, which was not diverse but comprised many trees with higher basal area. While the stem density which ranged from 94-409 stems•ha −1 is comparable with that of other tropical forests, species richness was low (ranging from 8.65-0.52). Diversity ranged from 3.38-0.98 and was higher in disturbed sites than in intact locations. Species richness was generally low and implies that loss of species in the ecosystem could threaten species' existence and conservation in the ecosystem. Disturbed locations had more species than the intact zones and as such show the importance of targeted conservation not only in the undisturbed locations but also in the disturbed locations with a higher species value and potential for species stability of the ecosystem.

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Species Composition, Diversity, and Biomass Estimation in Coastal and Marine Protected Areas of Terengganu, Peninsular Malaysia

Pesiu

Lee²,

Salam³

et al. 2022

Agronomy

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We investigated and compared the tree species composition and diversity of different forest types in Setiu Wetlands and on the three major islands of Terengganu. A total of 24 plots of 25 m × 25 m with four plots in each study site were established, viz. Melaleuca swamp forest in Kampung Fikri, freshwater swamp forest in Kampung Gong Batu, mangrove forest in UMT Setiu research station, and the islands, namely Pulau Bidong, Pulau Redang, and Pulau Perhentian. We calculated the basal area, stand density, Importance Value Index, species diversity, and above-ground biomass in the designated study areas. We assessed 139 tree species from 96 genera and 50 families based on a total of 2608 tree samples of 5 cm DBH and above. The freshwater swamp forest harbored the highest number of species with 20 species in Setiu Wetlands, and among the islands, Pulau Redang had the highest with 56 species. Melaleuca cajuputi was the most dominant species in the Melaleuca swamp forest, while Alstonia spatulata and Rhizophora apiculata are expected in the freshwater swamp and mangrove forest, respectively. Pulau Bidong, Pulau Redang, and Pulau Perhentian are mostly represented by Licania splendens, Shorea glauca, and Vatica sp., respectively. All the dominant species but Licania splendens contributed to the highest amount of above-ground biomass. Our current study indicated that different forest types vary in composition and structure, which may contribute to their unique ecological roles within their specific environment.

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Species Diversity and Structure of an Intact Freshwater Swamp Forest in the Niger Delta

Cited by 3 publications

References 26 publications

Quantification of Total Phenols, Total Flavonoids, Total Anthocyanins and Evaluation of Antioxidant and Antiradical Activities of Detarium Senegalense Extracts from Chad

Quantification of Total Phenols, Total Flavonoids, Total Anthocyanins and Evaluation of Antioxidant and Antiradical Activities of Detarium Senegalense Extracts from Chad

Floristic Composition and Diversity of Freshwater Swamp Forests in the Niger Basin of Nigeria

Species Composition, Diversity, and Biomass Estimation in Coastal and Marine Protected Areas of Terengganu, Peninsular Malaysia

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