Key Biodiversity Areas

Arusha National Park and vicinity (6964)
Tanzania, Africa

Site overview


KBA status: confirmed
Global KBA criteria: B2
Year of last assessment: 2011
National site name: Arusha National Park and vicinity
Central coordinates: Latitude: -3.2580, Longitude: 36.7970
System: freshwater, terrestrial
Elevation (m): 1400 to 4565
Area of KBA (km2): 423.23522
Protected area coverage (%): 95.49
KBA classification: Global
Legacy site: Yes

Site details


Site description: Arusha National Park covers the eastern portion of Mount Meru and extends 16 km to the east of the mountain. The site lies to the east of the Rift Valley and to the west of Mount Kilimanjaro (TZ003). The park encompasses a wide variety of habitats including montane forest similar to that on Mount Kilimanjaro, characterized by Diospyros abyssinica, Olea welwitschii, O. hochstetteri and O. africana, and several freshwater and alkaline lakes, ponds and swamps. The IBA also includes lower and mid-altitude forest lying outside the park in Forest Reserves.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs. KBA identified in the process of compiling the CEPF Ecosystem Profile of the East Afromontane Hotspot. Species taxonomy and threat category was based on IUCN Red List 2010-4. The site holds a significant population of the following plant species which, although not yet Red-List-assessed at the global level, are thought likely to be categorised as globally threatened once assessed (thus meeting the KBA Vulnerability criterion), based on existing regional or national Red List assessments (species also considered as site-endemic are tagged with Irr1 [KBA Irreplaceability 1 criterion]): Erucastrum meruense, Gymnosporia richardsiae.
Additional biodiversity: See Box and Tables 2 and 3 for key species. The site is known to support at least 411 species, including Ardeola idae, as a non-breeding visitor in small numbers, and one species of the Serengeti plains EBA, as well as 11 species of the Somali–Masai biome (see Tables 2 and 3). The National Park is the only protected area utilized by the dwindling East African population of Oxyura maccoa which winters on the large alkaline lakes and breeds in the small, secluded freshwater ponds and swamps. The mountain streams hold Anas sparsa and the towering cliffs support a large population of Apus niansae and two pairs of Gypaetus barbatus. Apus horus and Merops bullockoides share nest-sites along the riverbanks, while the swamp on the floor of Ngurdoto Crater provides a safe nest-site for Ephippiorhynchus senegalensis. There are important populations of montane forest birds in the natural forest including Poicephalus gulielmi, Apaloderma vittatum and Linurgus olivaceus. Non-bird biodiversity: A population of Loxodonta africana (EN) occurs in the park, while Lycaon pictus (EN) is an occasional visitor. The commonest duiker in the forest is Cephalophus harveyi (LR/cd).
Delineation rationale: 2013-07-10 (BL Secretariat): following CEPF East Afromontane ecosystem profiling process, the original IBA area of 13,700 ha has been increased to the KBA area of 42,000 ha (as measured in GIS from latest boundary polygon, rounded to nearest 10%).

Habitats


Land use: forestry | nature conservation and research | tourism/recreation | water management
IUCN HabitatCoverage %Habitat detail
Forest87
Shrubland12

Threats


Summary of threats to biodiversity at KBA: Whilst natural forest inside the National Park is protected, forest areas in adjacent Forest Reserves are vulnerable to degradation and should be included within the boundaries of the National Park. The Momela lakes, on the edge of the National Park, are threatened by chemical run-off from nearby farms. This threat is likely to intensify as higher agricultural yields are required to meet the needs of a growing population.The National Park has a relatively small area and is becoming increasingly isolated as surrounding land is developed for agriculture. The long-term viability of this park, particularly for the majority of large mammals, would be enhanced by creating a corridor to the north–north-east linking it with the extensive areas of Acacia-dominated woodland which continue north to the Kenyan border and to the foothills of Mount Kilimanjaro.
Threat level 1Threat level 2Threat level 3Timing
Agriculture & aquacultureAnnual & perennial non-timber cropsSmall-holder farmingOngoing
PollutionAgricultural & forestry effluentsNutrient loadsOngoing
Agriculture & aquacultureWood & pulp plantationsAgro-industry plantationsOngoing
Agriculture & aquacultureLivestock farming & ranchingSmall-holder grazing, ranching or farmingOngoing
Agriculture & aquacultureMarine & freshwater aquacultureSubsistence/artisinal aquacultureOnly in the future
Biological resource useHunting & collecting terrestrial animalsIntentional use (species being assessed is the target)Only in the past and unlikely to return
Biological resource useHunting & collecting terrestrial animalsPersecution/controlOnly in the past and unlikely to return
Biological resource useHunting & collecting terrestrial animalsUnintentional effects (species being assessed is not the target)Only in the past and unlikely to return
Biological resource useFishing & harvesting aquatic resourcesUnintentional effects: subsistence/small scale (species being assessed is not the target) [harvest]Only in the past and unlikely to return
Biological resource useGathering terrestrial plantsUnintentional effects (species being assessed is not the target)Only in the future
Biological resource useLogging & wood harvestingUnintentional effects: subsistence/small scale (species being assessed is not the target) [harvest]Only in the future
Natural system modificationsFire & fire suppressionIncrease in fire frequency/intensityOnly in the future
Natural system modificationsDams & water management/useSmall damsOngoing
Invasive & other problematic species, genes & diseasesInvasive non-native/alien species/diseasesUnspecified speciesOnly in the future
PollutionDomestic & urban waste waterType Unknown/UnrecordedOnly in the past and unlikely to return
PollutionIndustrial & military effluentsType Unknown/UnrecordedOnly in the past and unlikely to return
PollutionAgricultural & forestry effluentsType Unknown/UnrecordedOnly in the past and unlikely to return
PollutionAir-borne pollutantsType Unknown/UnrecordedOnly in the past and unlikely to return
PollutionExcess energyNoise pollutionOngoing
PollutionExcess energyThermal pollutionOnly in the past and unlikely to return
PollutionExcess energyLight pollutionOnly in the past and unlikely to return
Residential & commercial developmentHousing & urban areasOngoing
Residential & commercial developmentCommercial & industrial areasOnly in the past and unlikely to return
Residential & commercial developmentTourism & recreation areasOngoing
Energy production & miningOil & gas drillingOnly in the past and unlikely to return
Energy production & miningMining & quarryingOnly in the past and unlikely to return
Energy production & miningRenewable energyOnly in the future
Transportation & service corridorsRoads & railroadsOngoing
Human intrusions & disturbanceRecreational activitiesOngoing
Human intrusions & disturbanceWar, civil unrest & military exercisesOnly in the past and unlikely to return
PollutionGarbage & solid wasteOnly in the past and unlikely to return
Geological eventsVolcanoesOnly in the future
Climate change & severe weatherHabitat shifting & alterationOnly in the future
Climate change & severe weatherDroughtsOnly in the future
Climate change & severe weatherTemperature extremesOnly in the future
Climate change & severe weatherStorms & floodingOnly in the future

Additional information


References: Baker (1997), Beesley (1972), Neuman (1992), TANAPA (1987).