Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya ...
Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya ... Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya ...
pseudozanguebariaeZanzibar (Muyuni) TZ 6.37 39.47 Micrococca scariosa VU PZanzibar Island-East Coast TZ 6.17 39.33 10000 + +Zanzibar Island-South Coast TZ 6.17 39.33 4000 + +**Taxonomic Group: M=mammal, B=bird, A=amphibian, G=gastropod, P=plant.119
An Overview of CEPF’s Portfolio in the Eastern Arc Mountains and CoastalForests of Tanzania and KenyaThe Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya hold a greatconcentration of endemic plant and vertebrate species per unit area, juxtaposed with asevere degree of threat. Combined, these factors mean this region is likely to suffersome of the most plant and vertebrate extinctions for a given loss of habitat. Theremaining forests are irreplaceable in every sense of the word.The region straddles two ecoregions, which have distinct composition as detailed below.A more comprehensive biological description is contained in the ecosystem profile.Previously classified as a biodiversity hotspot itself, the Eastern Arc Mountains andCoastal Forests of Tanzania and Kenya region now lies within two new hotspots—theEastern Afromontane Hotspot and the Coastal Forests of Eastern Africa Hotspot—identified as part of a global hotspots reappraisal released in 2005. CEPF investmentcontinues to focus strictly on the geographic area comprising the original hotspot.Biodiversity in The Eastern Arc MountainsFrom the Taita Hills in southern Kenya extending south to the Udzungwa Mountains inTanzania, this chain of ancient mountains are famous as the center of endemism of theAfrican violet (Saintpaulia spp.).Almost 40 percent of the approximately 2,000 vascular plants found here are endemic.They are located in almost all of the types of altitudinal forests, as well as in interveninghabitats such as rocky outcrops, heathland, montane grasslands, and wetlands. Ofthose studied, non-vascular plants also show significant endemism. Predictably, there isa direct correlation between the area of forest blocks and species richness.Faunal endemism is also extremely high for reptiles, amphibians and especiallyinvertebrates. There are also several endemic birds and mammals, such as theCritically Endangered Tana River red colobus found only along the Tana River in Kenya.Recent research has also revealed new species of mammals within the Eastern Arc thatare likely to be endemic or near endemic.The vulnerability of several species is compounded as they have extremely limiteddistributions. The Kihansi spray toad, described in 1998, was known from an area ofless than 1 square kilometer within the spray zone of a large waterfall on the Kihansiriver but is now presumed to be extinct as a result of a hydropower facility that alteredthe river flow and destroyed the spray zone followed by an outbreak of the infectiouschytrid fungus.1
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- Page 111 and 112: magnistipulataMacaranga conglomerat
- Page 113 and 114: Canthium siebenlistii VU PCephaloph
- Page 115 and 116: longipedunculatumDiospyros amaniens
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An Overview <strong>of</strong> CEPF’s Portfolio in the <strong>Eastern</strong> <strong>Arc</strong> <strong>Mountains</strong> <strong>and</strong> <strong>Coastal</strong><strong>Forests</strong> <strong>of</strong> <strong>Tanzania</strong> <strong>and</strong> <strong>Kenya</strong>The <strong>Eastern</strong> <strong>Arc</strong> <strong>Mountains</strong> <strong>and</strong> <strong>Coastal</strong> <strong>Forests</strong> <strong>of</strong> <strong>Tanzania</strong> <strong>and</strong> <strong>Kenya</strong> hold a greatconcentration <strong>of</strong> endemic plant <strong>and</strong> vertebrate species per unit area, juxtaposed with asevere degree <strong>of</strong> threat. Combined, these factors mean this region is likely to suffersome <strong>of</strong> the most plant <strong>and</strong> vertebrate extinctions for a given loss <strong>of</strong> habitat. Theremaining forests are irreplaceable in every sense <strong>of</strong> the word.The region straddles two ecoregions, which have distinct composition as detailed below.A more comprehensive biological description is contained in the ecosystem pr<strong>of</strong>ile.Previously classified as a biodiversity hotspot itself, the <strong>Eastern</strong> <strong>Arc</strong> <strong>Mountains</strong> <strong>and</strong><strong>Coastal</strong> <strong>Forests</strong> <strong>of</strong> <strong>Tanzania</strong> <strong>and</strong> <strong>Kenya</strong> region now lies within two new hotspots—the<strong>Eastern</strong> Afromontane Hotspot <strong>and</strong> the <strong>Coastal</strong> <strong>Forests</strong> <strong>of</strong> <strong>Eastern</strong> Africa Hotspot—identified as part <strong>of</strong> a global hotspots reappraisal released in 2005. CEPF investmentcontinues to focus strictly on the geographic area comprising the original hotspot.Biodiversity in The <strong>Eastern</strong> <strong>Arc</strong> <strong>Mountains</strong>From the Taita Hills in southern <strong>Kenya</strong> extending south to the Udzungwa <strong>Mountains</strong> in<strong>Tanzania</strong>, this chain <strong>of</strong> ancient mountains are famous as the center <strong>of</strong> endemism <strong>of</strong> theAfrican violet (Saintpaulia spp.).Almost 40 percent <strong>of</strong> the approximately 2,000 vascular plants found here are endemic.They are located in almost all <strong>of</strong> the types <strong>of</strong> altitudinal forests, as well as in interveninghabitats such as rocky outcrops, heathl<strong>and</strong>, montane grassl<strong>and</strong>s, <strong>and</strong> wetl<strong>and</strong>s. Ofthose studied, non-vascular plants also show significant endemism. Predictably, there isa direct correlation between the area <strong>of</strong> forest blocks <strong>and</strong> species richness.Faunal endemism is also extremely high for reptiles, amphibians <strong>and</strong> especiallyinvertebrates. There are also several endemic birds <strong>and</strong> mammals, such as theCritically Endangered Tana River red colobus found only along the Tana River in <strong>Kenya</strong>.Recent research has also revealed new species <strong>of</strong> mammals within the <strong>Eastern</strong> <strong>Arc</strong> thatare likely to be endemic or near endemic.The vulnerability <strong>of</strong> several species is compounded as they have extremely limiteddistributions. The Kihansi spray toad, described in 1998, was known from an area <strong>of</strong>less than 1 square kilometer within the spray zone <strong>of</strong> a large waterfall on the Kihansiriver but is now presumed to be extinct as a result <strong>of</strong> a hydropower facility that alteredthe river flow <strong>and</strong> destroyed the spray zone followed by an outbreak <strong>of</strong> the infectiouschytrid fungus.1
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