Cherangani Hills Forest

Cherangani Hills Forest (Cherangany Hills Forest) is a collection of thirteen forest reserve blocks in western Kenya, located in the Cherangani Hills on the western ridge of the East African Rift. The forested area is about 1,200 square kilometres (463 sq mi),[1] 956 square kilometres (369 sq mi) of which has been gazetted into forest reserves.[2] These forest reserves form the upper catchments of the Kerio and Nzoia and Turkwel rivers.[1]

View of the hills
A member of the Dorobo, c. 1913, poison-hunters who inhabited small hill villages.

Forest types

edit

The three western blocks, Kapkanyar, Kapolet and Kiptaberr, are larger and more consolidated and constitute about 20% of the Cherangani Hills Forest. Most of the rest of the forests are fragmented, cut by grasslands, bushlands, and croplands.[2] The forests themselves are quite varied in composition. To the west, the lower elevations are "Aningeria-Strombosia-Drypetes" forest, grading into mixed Podocarpus milanjianus forest on the higher elevations. To the east are "JuniperusNuxiaAfrocarpus falcatus" forest, particularly on south facing slopes. On the eastern slopes these are interspersed with Afrocarpus falcatus forest, much disturbed by human activities. sizeable remnants of "JuniperusMaytenus undataRapaneaHagenia" forest can be found in the high valleys. In some of the stream valleys tree ferns such as Cyathea manniana can be found as well as small patches of the bamboo Yushania alpina.[2]

Forest blocks

edit

Flora and fauna

edit

In total, 1296 species, including 17 endemic species have been documented found in the Cherangani Hills Forest, belonging to 130 families and 608 genera. This flora represents 18.50% of the Kenyan species, 43.83% of the Kenyan genera and 54.17% of the Kenyan families. Threatened plants include; Peucedanum aculeolatum Engl., Pimpinella lindblomii H. Wolff, Polyscias kikuyuensis Summerh., Ethulia vernonioides (Schweinf.) M.G. Gilbert, Euryops brownei S. Moore, Gutenbergia rueppellii Sch. Bip., Senecio pseudosubsessilis C. Jeffrey, S. rhammatophyllus Mattf., Helichrysum meyeri-johannis Engl., Guizotia jacksonii (S. Moore) J. Baagøe., Impatiens hoehnelii T.C.E. Fr., Impatiens meruensis Gilg, I. pseudoviola Gilg, I. tinctoria A. Rich., Cynoglossum cheranganiense Verdc., Lobelia aberdarica R.E. Fr. & T.C.E. Fr., L. cheranganiensis Thulin, Lobelia deckenii (Asch.) Hemsl., L. duriprati T.C.E. Fr., Wahlenbergia scottii Thulin, Euphorbia brevicornu Pax, Trifolium cheranganiense J.B. Gillett, Hypericum kiboense Oliv., Galega lindblomii (Harms) J.B. Gillett, Abutilon mauritianum (Jacq.) Medik., Diaphananthe montana (Piers) P.J. Cribb & J. Stewart, Habenaria altior Rendle, Polystachya bella Summerh., Calamagrostis hedbergii Melderis, Delphinium macrocentrum Oliv., Rubus scheffleri Engl., Galium kenyanum Verdc. Spermacoce minutiflora (K. Schum.) Verdc. and Cyphostemma cyphopetalum (Fresen.) Desc. ex Wild & R.B. Drumm. [12]

Conservation

edit

The Cherangani Hills Forest is threatened by increased pressures from a growing local population, as well as by pressure from downstream inhabitants. The problems range from overgrazing, to conversion of the forest to cropland, to excessive use of forest products in making charcoal and providing local lumber.[13][14]

edit

Notes

edit
  1. ^ a b Kimani, Samuel Munyua (June 2011). "The Role of Geospatial Technologies in Livelihood and Natural Resources Management: PES Analysis". Baobab: A Magazine on Drylands Development and Sustainable Agriculture (62): 28–29.
  2. ^ a b c "Cherangani Hills (KE43)". BirdLife. Archived from the original on 2016-03-04. Retrieved 2012-08-09.
  3. ^ Kapkanyar Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  4. ^ Kapolet Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  5. ^ Kiptaberr Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  6. ^ Lelan Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  7. ^ Embobut Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  8. ^ Kaisungurr Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  9. ^ Toropket Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  10. ^ Sogotio Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  11. ^ Kapchemutwa Forest (Approved) at GEOnet Names Server, United States National Geospatial-Intelligence Agency
  12. ^ Mbuni, Yuvenalis Morara; Zhou, Yadong; Wang, Shengwei; Ngumbau, Veronicah Mutele; Musili, Paul Mutuku; Mutie, Fredrick Munyao; Njoroge, Brian; Kirika, Paul Muigai; Mwachala, Geoffrey; Vivian, Kathambi; Rono, Peninah Cheptoo; Hu, Guangwan; Wang, Qingfeng (18 April 2019). "An annotated checklist of vascular plants of Cherangani hills, Western Kenya". PhytoKeys (120): 1–90. doi:10.3897/phytokeys.120.30274. PMC 6483958. PMID 31065231.
  13. ^ "FSP – Strengthening the Protected Area Network within the Eastern Montane Forest Hotspot of Kenya" (PDF). The GEF Trust Fund. 12 November 2009. Archived from the original (PDF) on 24 July 2010. Retrieved 9 August 2012.
  14. ^ Kushner, Jacob (April 16, 2015). "The World Bank's broken promise to 'do no harm'". Los Angeles Times.

01°18′N 35°25′E / 1.300°N 35.417°E / 1.300; 35.417