Caractérisation écologique et structurale des parcs à néré [&lt;i&gt;Parkia biglobosa&lt;/i&gt; (Jacq.) R. Br. Ex G. Don] du département de la Donga au Nord-Ouest du Bénin

Koura, K; Dissou, EF; Ganglo, JC

doi:10.4314/ijbcs.v7i2.27

Cited by 9 publications

(8 citation statements)

References 7 publications

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“…Because of the socio-economic importance of this species, the populations long times had developed the ethnicity of its conservation since a long time ago. These results were higher than those of Koura et al (2013) which found 4.93 to 12.38 m² ha -1 in P. biglobosa parks in Benin.…”

Section: Distribution Of Population Of P Biglobosa In the Mount Mandaracontrasting

confidence: 77%

“…These results were confirmed by those of Koura et al (2013) which had shown a similar structure in diameter and concluded that, the structures in diameter of P. biglobosa population translated the impact of the management of this species by farmers. The local management did not worry about the regeneration status of the species and presented a stunning deficit in the lower diameter classes ranging between 10 and 20 cm (Koura et al, 2013). The scarcity or the absence of the seedling individuals showed that the natural regeneration of P. biglobosa was difficult.…”

Section: Distribution Of Population Of P Biglobosa In the Mount Mandarasupporting

confidence: 74%

“…The wood of this species was required in craft industry to fabricate arts objects. On the other hand, these values of density were definitely lower than those obtained by Koura et al (2013) (39 to 70 individuals ha -1 ) in various zones in Benin obtained by Ouédraogo (1995) (5 to 25 individuals ha -1 ) and those of Thiombiano et al (2010) (37 individuals ha -1 ), whose work were undertaken in various zones in Burkina Faso. According to these authors, the zones where the density of P. biglobosa were high, it had a great socio-economic and cultural value in the life of the population.…”

Section: Distribution Of Population Of P Biglobosa In the Mount Mandaracontrasting

confidence: 57%

“…It becomes an imperative to provide necessary information for the sustainable management of this important plant. In spite of the significant scientific work load devoted to P. biglobosa in its phytogeographical area (Beaulaton and Gutierrez, 2002;Douma et al, 2010;Koura et al, 2013), no scientific study was devoted to the demography and the regeneration status of this species in the Mount Mandara in the Sahelian Zone of Cameroon. However, this species has particular socio-economic importance because of the utilisation of its various products by local populations.…”

Section: Introductionmentioning

confidence: 99%

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Structure and regeneration of Parkia biglobosa (Jacq.) R. Br Ex G Don in Mount Mandara, Cameroon

Moksia¹,

Takoua²,

Hamawa³

et al. 2019

Int. J. Biodivers. Conserv.

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A study was carried out in the Mount Mandara area to assess the populations and renewal status of Parkia biglobosa, a multipurpose species. The study was aimed at contributing to the sustainable management of this resource. Transect methods were used to count individuals of P. biglobosa in fields. Results showed that the density of P. biglobosa was 7 individuals ha-1. The basal area of P. biglobosa individuals varied as follows: Mokolo area (21.41 m 2 ha-1) and Roua-plateaux Zoulgo (20.06 m 2 ha-1). In these zones, big trees of P. biglobosa with large diameters were quite numerous. The average diameters were 79.14 ± 5.04 cm, and the average height was 13.60 ± 0.96 m. The structure of the distribution among the diameters generally was bell shaped, but the distributions varied in each zone. The greatest number of individuals was observed in the [50-70 cm] and [70-90 cm] diameter classes, with a remarkable increased presence of individuals in class [130-150 cm]. The scarcity of the individuals in the diameter range of 10 to 30 cm was noted in the various zones, with their entire absence in the Roua-Plateaux Zoulgo and Méri zones. The rate of regeneration of P. biglobosa was 13 %. This rate was very weak compared to the socioeconomic importance of this species. This regeneration rate will not ensure continued population strength of this multipurpose species. This species is proven of importance, but its capacity of regeneration was too low to ensure its sustainability. It becomes imperative to develop effective strategies for its regeneration and conservation.

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Section: Distribution Of Population Of P Biglobosa In the Mount Mandaracontrasting

confidence: 77%

Section: Distribution Of Population Of P Biglobosa In the Mount Mandarasupporting

confidence: 74%

Section: Distribution Of Population Of P Biglobosa In the Mount Mandaracontrasting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure and regeneration of Parkia biglobosa (Jacq.) R. Br Ex G Don in Mount Mandara, Cameroon

Moksia¹,

Takoua²,

Hamawa³

et al. 2019

Int. J. Biodivers. Conserv.

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“…Yehouenou Tessi et al (2012) ont étudié la configuration spatiale de Antiaris toxicaria et Ceiba pentandra, en utilisant les indices dispersion de Blackman et de Green. Koura et al (2013) ont utilisé les indices de Green et de Blackman pour étudier la répartition spatiale de Parkia biglobosa contrairement à Dotchamou et al (2016) qui, en modélisant la répartition spatiale des pieds de Parkia biglobosa, se sont servis de la fonction K de Ripley.…”

Section: Introductionunclassified

Répartition spatiale de Cola millenii K. Schum., Dialium guineense Wild. et Afzelia africana Smith ex Pers. dans les forêts secondaires du Sud Benin (Afrique de l’Ouest)

Kakpo¹,

Tessi²,

Gbètoho³

et al. 2018

Int. J. Bio. Chem. Sci

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RESUMELes écosystèmes forestiers sont extrêmement précieux et utiles pour l'humanité toute entière. Dans l'objectif de contribuer à la gestion durable des forêts reliques du Sud Bénin, la répartition spatiale de Cola millenii, Dialium guineense et Afzelia africana dans les forêts secondaires de Bonou et d'Itchèdè a été étudiée. Le dispositif d'échantillonnage est de type systématique à maille carrée de 100 m x 100 m. Les unités d'inventaires sont des placeaux carrés de 0,25 ha. Pour chaque espèce, la densité relative de voisinage (Ω) a été calculée. Les principaux résultats de notre étude indiquent que les populations de Cola millenii et de Dialium guineense dans un rayon de 10 m autour des points repères ont une répartition agrégative. Au-delà des 10 m plus précisément entre 10 m et 30 m, cette répartition devient progressivement dispersée. Cela est constaté dans les deux forêts. Par contre, Afzelia africana observé dans la forêt d'Itchèdè a une répartition spatiale relativement dispersée dans un rayon de 30 m alors que dans la forêt de Bonou, la répartition spatiale est agrégative dans un rayon de 10 m puis relativement dispersée au-delà. Une telle étude constitue un préalable fondamental à l'élaboration de stratégies de restauration et de gestion durable des forêts à Cola millenii, Dialium guineense et Afzelia africana. ABSTRACTThe forest ecosystems are invaluable and useful for whole humanity. This study aimed at contributing to sustainable management of the secondary forests in South of Benin. So spatial pattern of Cola millenii, Dialium guineense and Afzelia africana was studied in Bonou and Itchèdè reserves. Data were collected by S. B. KAKPO et al. / Int. J. Biol. Chem. Sci. 12(1): 353-362, 2018 354 means of systematic square sampling (100 m X 100 m) on 0.25 ha square plots. The spatial pattern of Cola millenii, Dialium guineense and Afzelia africana are examined based on the average density of conspecific trees in circular neighborhoods around (relative neighborhood density). From results, Cola millenii and Dialium guineense populations are in a 10 m radius around bench marks are clumped distribution. Beyond 10 m more precisely between 10 m and 30 m, this distribution becomes gradually dispersed. This is found in both forests. Unlike, Afzelia africana which observed in the Itchèdè's forest are relatively dispersed spatial distribution within 30 m, whereas in the Bonou's forest of which space is aggregative in a 10 m radius and relatively dispersed beyond. Such study is essential to develop strategies for the restoration and sustainable management of forests in Cola millenii, Dialium guineense and Afzelia africana.

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Morphological Variability of Pterocarpus erinaceus Poir. in Togo

Johnson

Quashie

Adjonou

et al. 2020

International Journal of Forestry Research

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Pterocarpus erinaceus Poir. (Fabaceae), also called Vène or West African rosewood, is a multipurpose endemic forest species of Sahelo-Sudanian and Sudano-Guinean savannas and forests of West Africa. In Togo, the species is overexploited, which dangerously hinders its survival. The need and emergency of restoring declining stands, using seeds, or propagating material suggests an assessment of its morphological variability. The purpose of this study is to identify the discriminating morphological descriptors, allowing us to describe and also to characterize the species. Five provenances distributed over the whole geographical distribution area in Togo were evaluated for leaf (7 descriptors), fruit (4 descriptors), and seed (4 descriptors) traits. The coefficient of variation (CV) and the principal component analysis (PCA) are used to assess the variability among tree populations. Results show that the discriminating morphological descriptors for P. erinaceus in Togo are the width of the leaf and the terminal leaflet, the length and the width of the fruit, and length and the weight of the seed. These six main relevant variables allow us to discriminate three morphological groups of P. erinaceus population.

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Caractérisation écologique et structurale des parcs à néré [<i>Parkia biglobosa</i> (Jacq.) R. Br. Ex G. Don] du département de la Donga au Nord-Ouest du Bénin

Cited by 9 publications

References 7 publications

Structure and regeneration of Parkia biglobosa (Jacq.) R. Br Ex G Don in Mount Mandara, Cameroon

Structure and regeneration of Parkia biglobosa (Jacq.) R. Br Ex G Don in Mount Mandara, Cameroon

Répartition spatiale de Cola millenii K. Schum., Dialium guineense Wild. et Afzelia africana Smith ex Pers. dans les forêts secondaires du Sud Benin (Afrique de l’Ouest)

Morphological Variability of Pterocarpus erinaceus Poir. in Togo

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