Mahenge Mountains

The Mahenge Mountains are a mountain range in Ulanga District, Morogoro Region, Tanzania. The town of Mahenge is located in the northeastern mountains. The mountains are southeast of Iringa, in the Eastern miombo woodlands ecoregion.

Mahenge Mountains
Dimensions
Area2802.29 km²
Geography
LocationUlanga District, Morogoro Region, Tanzania

Geography

The Mahenge Mountains cover an area of 2802.29 km².[1] The Mahenge mountains are an outlier of the Eastern Arc Mountains. The Kilombero Plain lies to the north and west, and separate the Mahenge Mountains from the Udzungwa Mountains. Selous Game Reserve lies to the east. The Mbarika Mountains lie to the south and southwest.

Geology

The mountains are made up of proterozoic rocks, including schist and marble, of the Mozambique Belt.[2]

Spinels are mined from the Ipanko deposit.[3] Australia's Black Rock Mining corporation is developing open-pit graphite mines in the mountains.[2]

Climate

The dry season is June to October.

People

The major economic activities of the Mahenge population is agriculture. The major crops include maize, rice, and beans.

Mahenge is the principal town in the mountains. There is a hospital, a market, and primary schools. A Catholic Capuchin mission was established around 1897, and there is now a St. Francis Kasita Seminary at Mahenge. The Diocese of Mahenge was established in 1964. About 60 percent of the population are Catholic Christians.

Ecology

The Mahenge Mountains are covered with evergreen forest, miombo woodland, grassland, and heathland. Forests extend from 460–1040 meters elevation, and vary in composition and species type with elevation and rainfall.[1] The lower elevations of the mountains and surrounding plains are covered in deciduous miombo forests and woodlands.

An analysis of satellite images taken between 1999 and 2003 found 19 km² of the mountains were still covered in evergreen forest.[1]

Water is generally scarce due to the limestone plateau, but despite this the area gives its name to the Mahenge Toad (Mertensophryne loveridgei). The rare tree Dombeya amaniensis is also found in this region.

The Mahenge Scarp Catchment Forest Reserve, established in 1954, is 3.87 km² in area and begins 8 km west of Mahenge town. This forest has been heavily encroached upon for illegal logging.

Sali Forest Reserve, established in 1954, preserves 1890 ha between 1050 and 1500 meters elevation. The forest reserve includes montane and submontane evergreen forests, along with wetlands, dry grasslands, and rocky outcrops. Mselezi forest reserve, also established in 1954, preserves 2245 ha between 500 and 900 meters elevation, and includes riverine lowland forest and semi-evergreen lowland forest.[4]

History

In slaving times, the Mahenge area was notorious as the home of slave hunters.

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References
  1. Burgess, N.D.; et al. (January 2007). "The biological importance of the Eastern Arc Mountains of Tanzania and Kenya"". Biological Conservation. 134 (2): 209–231. doi:10.1016/j.biocon.2006.08.015.
  2. "Mahenge Graphite Project". Mining Technology. Retrieved 27 September 2019.
  3. Anthony E. Fallick, Gaston Giuliani, Thomas Rigaudier, Adrian J. Boyce, Van Long Pham, Vincent Pardieu (January 2019). "Remarkably uniform oxygen isotope systematics for co-existing pairs of gem-spinel and calcite in marble, with special reference to Vietnamese deposits". Comptes Rendus Geoscience. 351 (1): 27–36.CS1 maint: uses authors parameter (link)
  4. Menegon, Michele; Claire Bracebridge, Nisha Owen, and Simon P. Loader (2011) "Herpetofauna of Montane Areas of Tanzania. 4. Amphibians and Reptiles of Mahenge Mountains, with Comments on Biogeography, Diversity, and Conservation". Fieldiana Life and Earth Sciences, Number 4:103-111. 2011.

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