Isoberlinia doka - Sampled Red List Index for Plants

Isoberlinia dokaLCTaxonomic Authority:Global AssessmentCraib & StapfRegional AssessmentRegion:GlobalEndemic to regionSynonymsBerlinia doka (Craib & Stapf)Baker f.Common NamesUpper Level TaxonomyKingdom: PLANTAE Phylum: TRACHEOPHYTAClass: MAGNOLIOPSIDAOrder: FABALESFamily: LEGUMINOSAELower Level TaxonomyRank:Subpopulation:Infra- rank name:Authority: Plant HybridGeneral InformationDistributionIsoberlinia doka is distributed in west and central Africa from Guinea in the west to Sudan and Uganda in the east (Benin,Burkina Faso, Burundi, Cameroon, Central African Rep., Chad, Ghana, Guinea, Ivory Coast, Mali, Niger, Nigeria, Sudan, Togo,Uganda and Zaire); it is not known to occur south of the equator.Range SizeArea of Occupancy:Extent of Occurrence:Map Status:PopulationElevationUpper limit:Lower limit:DepthUpper limit:Lower limit:Depth Zones Shallow photic Photic Bathyl Abyssal HadalBiogeographic Realm Afrotropical Antarctic Australasian Neotropical Oceanian Palearctic Indomalayan NearcticI. doka is widespread in west and central Africa, the species is also generally described as common and as the dominant tree ofa vegetation community (Sands 1965).Total Population SizeMinimum Population Size:Maximum Population Size:Habitat and EcologyI. doka is a tree 10-18 m high or more which grows in dry savanna. I. doka could be the dominant species in woodland savanna,which is therefore called the doka savanna (Shorrocks 2007). The species has been described as gregarious in habitat,evanescent, quickly colonising clearings and abandoned land establishing near pure stands (Burkill 1995).System Terrestrial Freshwater MarineMovement pattern Nomadic Congregatory/Dispersive Migratory Altitudinally migrantCrop Wild Relative Is the species a wild relative of a crop?

Growth FromTree - size unknowDefinitionTree (any size), also termed a Phanerophyte (>1m)ThreatsI. doka is mainly used for the timber; the species is currently common and widespread, but it would need to be monitored over along period of time to make sure that the harvested level is regulated and that the species is not over-exploited.Past Present Future13 None Conservation MeasuresThere are no known conservation measures specifically for I. doka, but the species is currently known to occur in manyprotected areas. Samples of seed of I. doka are held in the Millennium Seed Bank as an ex situ conservaions measure.In Place Needed3 Research actions 3.5 Threats 3.6 Uses and harvest levels 3.9 Trends/Monitoring 4 Habitat and site-based actions 4.4 Protected areas 4.4.3 Management 5 Species-based actions 5.3 Sustainable use 5.7 Ex situ conservation actions Countries of OccurrenceYearRoundPRESENCEPossiblyextinctExtinctPresenceuncertainNativeORIGINBreeding NonbreedingPassageSeasononly migrantseason onlyIntroduced Re- Vagrant OriginIntroduced uncertainBenin Burkina Faso Burundi Cameroon Central African Republic Chad Congo, The Democratic Republic of theCôte d'Ivoire Ghana Guinea Mali Niger Nigeria Sudan Togo Uganda General Habitats Score Description MajorImportance

General Habitats Score Description MajorImportance2 Savanna 1 SuitableUnset2.1 Savanna - Dry 1 SuitableUnsetEcosystem ServicesInsufficient Information availableSpecies provides no ecosystem servicesSpecies UtilisationSpecies is not utilised at allPurpose / Type of UseSubsistence National International3. Medicine - human and veterinary 7. Fuel I. doka is mainly used for the timber. In Togo the wood is reduced to ash for soap-making (Burkill 1995).Trend in the level of wild offtake/harvest in relation to total wild population numbers over the last five years:Trend in the amount of offtake/harvest produced through domestication/cultivation over the last five years:CITES status: Not listedIUCN Red ListingRed List Assessment:(using 2001 IUCN system)Least Concern (LC)Red List Criteria:Date Last Seen (only for EX, EW or Possibly EX species):Is the species Possibly Extinct? Possibly Extinct Candidate? Rationale for the Red List AssessmentI. doka is a savanna tree species common and widespread in west and central Africa. I. doka is also the dominant tree species ofthe doka savanna woodland vegetation community. At present the exploitation level doesn't seem to affect the population trendsof this species, which is described as able to colonised quickly clearings and abandoned lands.The population is believed to bestable at present and therefore the species is rated as Least Concern. The species should be monitored over a longer period oftime to make sure that it doesn't fall into a threatened category.Reason(s) for Change in Red List Category from the Previous Assessment: Genuine Change Nongenuine Change Genuine (recent) Genuine (since first assessment)Current Population Trend: Stable Date of Assessment: 02/07/2009Name(s) of the Assessor(s): Contu, S.Evaluator(s):Notes:% population decline in the past: New information Knowledge of Criteria Incorrect data usedpreviously Taxonomy Criteria Revisio OtherNo ChangeSame categoryand criteriaSame category butchange in criteria

Time period over which the past decline has been measured forapplying Criterion A or C1 (in years or generations):% population decline in the future:Time period over which the future decline has been measured forapplying Criterion A or C1 (in years or generations):Number of Locations:Number of Mature Individuals:Severely Fragmented:BibliographyBrenan, J.P.M., 1963, The Species of Isoberlinia (Leguminosae), Kew Bulletin2, 219-226, ,Brenan,J.P.M., 1967, Caesalp.In:Flora Trop.East Africa. Milne-Redhead & Polhill, , ,Burkill, H.M., 1995, The useful plants of West Tropical Africa. Volume 3, Families J–L, 857, Royal Botanic Gardens, Kew,Richmond, United KingdomSands, W.A., 1965, Termite Distribution in Man-Modified Habitats in West Africa, with Special Reference to Species Segregationin the Genus Trinervitermes (Isoptera, Termitidae, Nasutitermitinae), Journal of Animal Ecology3, 557-571, ,Shorrocks, B., 2007, The biology of African savannahs, 268, Oxford University Press, Oxford