Floristic and structural changes in secondary forests following agricultural disturbances: the case of Lama forest reserve in Southern Benin

Gbètoho, Alain Jaures; Aoudji, Augustin K. N.; Koura, Kourouma; Gourlet‐Fleury, Sylvie; Kenfack, David; Cannière, Charles De; Ganglo, Jean Cossi

doi:10.4314/ijbcs.v10i4.13

Cited by 7 publications

(10 citation statements)

References 29 publications

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“…The majority of this forest have been extensively degraded in other to pave ways for other land uses such as industrial estate, crop fields and/or plantations (Prance et al, 2000). The degradation of forest ecosystem is usually accompanied by species extinction, reduction in biodiversity and decrease in primary productivity (Martínez-Ramos et al, 2016;Gbetoho et al, 2017). Currently, an estimated 850 million hectares of degraded forests exist globally.…”

Section: Introductionmentioning

confidence: 99%

Seed bank dynamics and restoration of Ibodi monkey forest reserve, Southwestern Nigeria

Odeleye¹,

Akinyemi²,

Olatunji³

et al. 2019

Int. J. Bio. Chem. Sci

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Ibodi Monkey forest reserve (IBMFR) is known for its rich flora and fauna, mainly contributed by regrowth forest species. However, intensive anthropogenic interferences such as agriculture, illegal mining and selective exploitation over a large extent of these ecosystems in the past years have led to a serious depletion of forest's diversity. Consequently, restoration of IBMFR has become a high priority for ecological management of forest. The distribution of soil seed bank in three different physiognomies, (natural regrowth forest, cocoa plantation and tree fallow) at Ibodi monkey forest were investigated. Six sample plots, each 25 m x 25 m, from each physiognomy were chosen for this investigation. Seasonal variation of seed bank density at various soil depths were carried out by using soil auger to bring soil samples out from 0-15 cm (topsoil) and 15-30 cm (subsoil) and seedling emergence monitored. The total seed density at 0-15 cm depth was significantly (p < 0.05) higher than the seed bank density at 15 -30 cm depth in both seasons. Seed density varied from 288 seeds/m 2 to 768 seeds/m 2 in rainy season and 288 seeds/m 2 to 1287 seeds/m 2 in the dry season. Seed bank density was significantly (p<0.05) higher in dry season compared with rainy season in regrowth forest and tree fallow physiognomies. This study revealed seeds are more concentrated in the upper soil layer than the lower soil layer in the three physiognomies, with relatively large number of herbaceous species compared with woody species. The seedbank may not be sufficient to restore the forest reserve. Additional management actions, such as active seed sowing of target species, may be necessary.

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Section: Introductionmentioning

confidence: 99%

Seed bank dynamics and restoration of Ibodi monkey forest reserve, Southwestern Nigeria

Odeleye¹,

Akinyemi²,

Olatunji³

et al. 2019

Int. J. Bio. Chem. Sci

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“…Secondary forests are growing in many parts of the world due to anthropic disturbances, but the issue of their management and restoration to primary forest is of great concern because the critical knowledge to guide that management is lacking (Makana and Thomas, 2008;Gbètoho et al, 2016). Depending on the level of degradation, Lamb (1994) suggested that reforestation may be done through substitution of the natural forest by plantation, rehabilitation, restoration or natural succession.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Suitability of Pioneer Species for Secondary Forest Restoration in Benin in the Context of Global Climate Change

Gbètoho¹,

Aoudji²,

Roxburgh³

et al. 2017

Bois for. trop.

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In this study, species distribution model- ling (SDM) was applied to the manage- ment of secondary forests in Benin. This study aims at identifying suitable areas where the use of candidate pioneer spe- cies, such as Lonchocarpus sericeus and Anogeissus leiocarpa, could be targeted to ensure at low cost, currently and in the context of global climate change, fast reconstitution of secondary forests and disturbed ecosystems and the recovery of their biodiversity. Using occurrence records from the Global Biodiversity Infor- mation Facility (GBIF) website and cur- rent environmental data, the factors that affected the distribution of the species were assessed in West Africa. The models developed in MaxEnt and R software for West Africa only, for both species, showed good predictive power with AUC > 0.80 and AUC ratios well above 1.5. The results were projected in future climate at the horizon 2055, using AfriClim data under rcp4.5 and rcp8.5 and suggested a little reduction in the range of L. seri- ceus and any variation for A. leiocarpa. The potential distribution of the two spe- cies indicated that they could be used for vegetation restoration activities both now and in the mid-21st century. Improve- ment are needed through the use of com- plementary data, the extension to others species and the assessment of uncertain- ties related to these predictions.

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“…Les valeurs des indices de diversité des différents biotopes de la forêt de Badenou sont inférieures à celles des différents biotopes de la forêt classée de Bamo obtenues par (Adingra, 2017). Toutes ces valeurs sont synonymes d'un manque de stabilité de la flore des différents biotopes du site (Adingra, 2017 (Kassi et al 2011 ;Adingra, 2017 ;N'Guessan et al 2019 Gbètoho et al (2016) qui montraient que les compositions floristiques sont généralement rattachées à la diversité des habitats. Ces travaux montrent que la végétation des jachères les plus âgées (30 ans et plus) est relativement proche de celle rencontrée dans les forêts anciennes.…”

Section: Indices De Diversité Floristiqueunclassified

Systematic and plant geography analysis of Badénou forest (Korhogo, Côte d’Ivoire)

Gboze¹,

Adingira²,

Sanogo³

et al. 2021

Int. J. Bio. Chem. Sci

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This study was initiated to contribute to the sustainable management of the Badénou classified forest. Its objective was to contribute to a better knowledge of the flora of this classified forest and, beyond that, to provide details on the distribution of species on the scale of Côte d'Ivoire. Surface survey methods and itinerant inventories were adopted during this work in 30 plots, 25 of which were set aside for post-cultural fallow. A total of 241 species were recorded throughout the massif, divided into 184 genera and 53 families. The botany inventories in all parts of the forest helped identify 241 species have been recorded in Badénou forest during field investigations, distributed among 183 genera and 53 families. Among those species, 162 (67.22%), 12 (4.98%), 10 (4.15%) and 10 (4.15%) are phanerophytes, therophytes, geophytes and hemicryptophytes, respectively. 34 species (14.11%) are lianas. Most species are dispersed by endozoochory (108 species 44.40%), either bear small, fleshy fruits that are dispersed by animals, either by endozoochory (106 species = 43.98%). Phytochory analysis shows relevant proportion of widespread species (96 species = 39.83%) compared to endemic guineo-congolian species (44 species = 18.26%). 5 species (2.07%) are guineo-congolian species that are endemic from West Africa, among which only one was endemic from Côte d’Ivoire. Those proportions indicate that the forest under study is included in dry rainforest sensu Guillaumet & Adjanohoun, and match with the widespread guineo-congolian–soudano-zambezian zone defined by White & Edwards. Unfortunately, this forest is still under enormous human pressure. Conservation efforts for endemic, rare and endangered species and the classified forest itself must be a priority. La présente étude a été initiée pour contribuer à la gestion durable de la forêt classée de Badénou. Elle avait pour objectif de contribuer à une meilleure connaissance de la flore de cette forêt classée et, au-delà, à apporter des précisions sur la répartition des espèces à l’échelle de la Côte d’Ivoire. Les méthodes de relevé de surface et des inventaires itinérants ont été adoptées lors de ces travaux dans 30 parcelles dont 25 dans les jachères postculturales. Au total 241 espèces ont été recensées dans l’ensemble du massif, réparties en 184 genres et 53 familles. Parmi ces espèces, 162 (67,22%) sont des phanérophytes, 12 (4,98%) espèces sont des thérophytes, 10 (4,15%) espèces sont des géophytes et 10 (4,15%) autres sont des hémicryptophytes. 34 espèces (14,11%) sont des lianes. La plupart des espèces sont soit pourvues d’appendices permettant leur dissémination par le vent (108 espèces = 44,40%), soit possedent de petites diaspores charnues dont la dissémination est assurée par les animaux, soit par endozoochorie (106 espèces = 43,98%). L’analyse des phytochories montre une contribution importante des espèces à large répartition (39,83% soit 96 espèces) par rapport aux espèces guinéo-congolaises (18,26%). 5 espèces (2,07%) sont des guinéo-congolaises endémiques de l’Afrique de l’Ouest, dont une est endémiques de Côte d’Ivoire. Ces différentes proportions confirment l’appartenance de la forêt étudiée à la zone de forêt dense sèche de Guillaumet & Adjanohoun, qui correspond à la zone de transitio guinéo congolais-soudano-zambézienne de White & Edwards. Malheureusement, la forêt classée de Badenou subit encore d’énormes pressions anthropiques. Les efforts de conservation des espèces endémiques, rares et menacées d’extinction et de la forêt classée elle-même doivent être une priorité.

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Floristic and structural changes in secondary forests following agricultural disturbances: the case of Lama forest reserve in Southern Benin

Cited by 7 publications

References 29 publications

Seed bank dynamics and restoration of Ibodi monkey forest reserve, Southwestern Nigeria

Seed bank dynamics and restoration of Ibodi monkey forest reserve, Southwestern Nigeria

Assessing the Suitability of Pioneer Species for Secondary Forest Restoration in Benin in the Context of Global Climate Change

Systematic and plant geography analysis of Badénou forest (Korhogo, Côte d’Ivoire)

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