Sokoine University of Agriculture

Conservation implications of deforestation across an elevational gradient in the Eastern Arc Mountains, Tanzania

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dc.contributor.author Burgess, Neil D.
dc.contributor.author Mbilinyi, Boniface
dc.contributor.author Gereau, Roy E.
dc.contributor.author Hall, Jaclyn
dc.contributor.author Lovett, Jon
dc.date.accessioned 2022-05-17T10:41:33Z
dc.date.available 2022-05-17T10:41:33Z
dc.date.issued 2009-11
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/4146
dc.description.abstract Deforestation is a major threat to the conservation of biodiversity, especially within global centers of endemism for plants and animals. Elevation, the major environmental gradient in mountain regions of the world, produces a rapid turnover of species, where some species may exist only in narrow elevational ranges. We use newly compiled datasets to assess the conservation impact of deforestation on threatened trees across an elevational gradient within the Eastern Arc Mountains of Tanzania. The Eastern Arc has suffered an estimated 80% total loss in historical forest area and has lost 25% of forest area since 1955. Forest loss has not been even across all elevations. The upper montane zone (>1800 m) has lost 52% of its paleoecological forest area, 6% since 1955. Conversely, the submontane habitat (800–1200 m) has lost close to 93% of its paleoecological extent, 57% since 1955. A list of 123 narrowly endemic Tanzanian East- ern Arc tree taxa with defined and restricted elevational ranges was compiled and analyzed in regard to mountain block locations, elevational range, and area of forest within each 100 m elevational band. Half of these taxa have lost more than 90% of paleoecological forest habitat in their elevational range. When elevational range is considered, 98 (80%) of these endemic forest trees should have their level of extinc- tion threat elevated on the IUCN Red List. Conservation efforts in montane hotspots need to consider the extent of habitat changes both within and across elevations and target conservation and restoration efforts throughout these ecosystems’ entire elevational ranges. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Eastern Arc Mountains en_US
dc.subject Forest loss en_US
dc.subject Endemic plants en_US
dc.subject Africa en_US
dc.subject Red list en_US
dc.title Conservation implications of deforestation across an elevational gradient in the Eastern Arc Mountains, Tanzania en_US
dc.type Article en_US
dc.url www.elsevier.com/locate/biocon en_US


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