Utilization and traditional strategies of in situ conservation of iroko (Milicia excelsa Welw. C.C. Berg) in Benin

Ouinsavi, Christine; Sokpon, Nestor; Bada, O.

doi:10.1016/j.foreco.2004.10.069

Cited by 33 publications

(35 citation statements)

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“…It is a large deciduous tree up to 30-50 m height, with a stem diameter of 1.70-2 m and a high, umbrella-like crown, growing from a few thick branches. The species was found to be sparsely distributed on farmlands which represented the main conservation sites for the remnant trees in Benin (Ouinsavi et al 2005). A more recent study of genetic structure (Ouinsavi et al 2006) revealed an effect of isolation by distance on relict populations of this species and suggested priority actions for increased gene flow by the creation of biological corridors between iroko populations in Benin.…”

Section: Introductionmentioning

confidence: 96%

Traditional agroforestry systems as tools for conservation of genetic resources of Milicia excelsa Welw. C.C. Berg in Benin

Ouinsavi

Sokpon

2008

Agroforest Syst

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The potential contribution of agroforestry systems to the management and genetic resources conservation in iroko (Milicia excelsa), an important and valuable timber tree species in sub-Saharan Africa, is addressed in this paper. The structure and dynamics of traditional agroforestry systems and the ecological structure of Milicia excelsa populations in farmlands were studied through a survey carried out in 100 farmlands covering the natural range of iroko in Benin. Forty-five species belonging to 24 plant families were recorded in traditional agroforestry systems. Average tree density varied from 1 to 7 stems ha -1 with diversity index ranging from 2.6 to 2.9. Milicia excelsa occurred sparsely in agroforestry systems in all regions, with density ranging from 1 to 4 stems ha -1 ; stand basal area varying from 33.10 -4 to 129.10 -4 m 2 ha -1 , and negligible seedling regeneration. However, male and female trees were apparently evenly distributed on farmlands in all regions (F/M [ 0). Iroko trees produced viable seeds with moderate germination rate and early growth (germination rate 22% and height 7.29 cm after 3 months). Suggestions are made regarding optimal densities for iroko conservation in farmlands, according to farmers' socioeconomic conditions in different regions, in order to improve traditional agroforestry systems and their use as biological corridors in conservation of Milicia excelsa genetic resources.

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Section: Introductionmentioning

confidence: 96%

Traditional agroforestry systems as tools for conservation of genetic resources of Milicia excelsa Welw. C.C. Berg in Benin

Ouinsavi

Sokpon

2008

Agroforest Syst

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“…Recent works from Yaoitcha et al (2015) covering a single forest reserve, reported A. africana, K. senegalensis, M. excelsa, P. erinaceus, to be rare as perceived by local population around Wari-Maro forest reserve (Central Benin). Some other related works also revealed that prioritized species such as K. senegalensis, P. erinaceus and M. excelsa are threatened by overexploitation (Ouinsavi et al, 2005;Gaoué et al, 2007;Glèlè Kakaï et al, 2008;Bonou et al, 2009;Houehanou et al, 2013); which support their importance as priority species for active conservation. Three species (K. senegalensis, A. africana and P. erinaceus) identified as priority for conservation were reported to be threatened in both open access and protected areas of Pendjari Biosphere Reserve of Benin (Houehanou et al, 2013).…”

Section: Discussionmentioning

confidence: 90%

“…Photo J. D. T. Akpona. possess some diabolic powers, thus making it severely overexploited in Benin (Ouinsavi et al, 2005). To date, a detailed threat assessment using IUCN Red List Criteria has only been assessed for a few species (table IV), yet most species facing human harvesting pressure were often exposed to decline (Idohou et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Inventory and multicriteria approach to identify priority commercial timber species for conservation in Benin

Akpona

Assogbadjo²,

Fandohan³

et al. 2017

Bois for. trop.

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Diverses essences forestières, dont certaines sont menacées, sont exploitées pour leur bois, légalement ou non. Les essences prioritaires pour la conservation à long terme doivent donc être défi-nies. La présente étude a permis de réali-ser un inventaire des essences exploitées au Bénin et d'identifier les essences prioritaires pour lesquelles des actions urgentes de conservation et de restauration sont nécessaires. Des recherches bibliographiques complétées par des entretiens avec différentes parties prenantes ont été menées afin de recueillir les données requises pour dresser une liste exhaustive des essences prioritaires. Dix critères et quatre méthodes de priorisation ont été utilisés. Au final, l'approche a retenu 10 essences parmi les 15 essences prioritaires définies par chacune des méthodes. Au total, 24 espèces végétales ont été identifiées, appartenant à 9 familles : Fabacées (25 %), Malvacées (20,83 %), 67 %), Combrétacées (8,33 %), Moracées (8,33 %), Verbénacées (8,33 %), Ébénacées (4,17 %), Rutacées (4,17 %) et Myrtacées (4,17 %). Des mesures de conservation et de restauration sont préconisées d'urgence pour les 10 essences prioritaires ainsi retenues.

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“…Despite this huge effort, which is not paid for out of any funds allocated to forest management, wildlife is still threatened. Nevertheless, the venerated iroko (Ouinsavi et al 2005) and the spectacular Pararistolochia goldieana are well protected. The forest is possibly the last refuge for the Ibadan malimbe, Nigeria's rarest endemic bird (Manu 2001, Manu et al 2005 and has been designated an Important Bird Area (IBA) in 2002 by BirdLife International (Fishpool and Evans 2001).…”

Section: Discussionmentioning

confidence: 99%

Long-term conservation and rehabilitation of threatened rain forest patches under different human population pressures in West Africa

Neuenschwander¹,

Bown²,

Hedegbetan³

et al. 2015

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The management schemes of four rain forest patches in southern Benin and south-western Nigeria, which led to the successful protection of numerous threatened plants and animals over the last 20 plus years, are analysed. Since climatic conditions are similar, tree composition depends largely on different availability of water and documented biodiversity mostly on the availability of taxonomic expertise. Management differs according to accessibility and human population pressure, from total closing off of the forest by an international institute near the mega-polis Ibadan to unmarked borders near Lanzron, a remote village in the lower Ouémé Valley, where foreigners are mostly excluded from visiting the site. In Benin, trees and wildlife (antelopes and monkeys) seem best protected where the local vodoun beliefs are adhered to. This is, however, not sufficient and development aid to support and benefit the local population is needed as exemplified in Zinvié. At the Ibadan and Drabo sites, long-term protection is assured by legally-binding landtitles. Since for all of Lanzron and part of Zinvié these are lacking securing them is a priority. In Ibadan, Nigeria, a major rehabilitation effort is concentrated on bringing relatively old grass land and former village sites under forest cover by planting local trees. Rehabilitation in Drabo, in southern Benin, relies on enriching the naturally occurring fallow succession with rare species from nearby threatened sacred forests. We demonstrate that reversing biodiversity loss is possible but requires a long-term commitment. Recommendations for protecting, stabilizing and enhancing similar small hotspots of biodiversity are made. RESEARCH ARTICLE Launched to accelerate biodiversity conservation A peer-reviewed open-access journalPeter Neuenschwander et al. / Nature Conservation 13: 21-46 (2015) 22

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Utilization and traditional strategies of in situ conservation of iroko (Milicia excelsa Welw. C.C. Berg) in Benin

Cited by 33 publications

References 1 publication

Traditional agroforestry systems as tools for conservation of genetic resources of Milicia excelsa Welw. C.C. Berg in Benin

Traditional agroforestry systems as tools for conservation of genetic resources of Milicia excelsa Welw. C.C. Berg in Benin

Inventory and multicriteria approach to identify priority commercial timber species for conservation in Benin

Long-term conservation and rehabilitation of threatened rain forest patches under different human population pressures in West Africa

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