Monochoria africana N.E.Br. [Family Pontederiaceae]: Probable Reasons for Limited Distribution of This Rare Species in Kenya

Main Article Content

Peter K. Njenga
John K. Muchuku

Abstract

Monochoria africana N.E.Br. is an extremely rare plant with limited distribution in Kenya. Rare plant species are often specialists for a rare microhabitat and there is all likelihood that Monochoria africana is a habitat specialist. Our research on distribution of this species in Kenya has so far located it in a very small isolated microhabitat in the Tana River delta, coastal region of Kenya. So far, this plant has only been located in one community farm in a small village called Ozi, near Kipini, Latitude 2°30’33’’S and Longitude 40°27’20’’E. The methodology used in this study entailed direct observations, line transects, meander and patterned searches in its narrow area of endemism.

In this short communication, the authors hypothesize various reasons for the limited distribution of this rare species. Viz: diverse edaphic factors, inbreeding depression, low levels of seed set, genetic bottlenecks, specialized pollination systems etc. At the Jomo Kenyatta University of Agriculture and Technology (JKUAT) department of Botany greenhouses, we have embarked on some studies to try and unravel probable reasons for rarity of Monochoria africana.

Keywords:
Monochoria africana, limited distribution.

Article Details

How to Cite
Njenga, P. K., & Muchuku, J. K. (2020). Monochoria africana N.E.Br. [Family Pontederiaceae]: Probable Reasons for Limited Distribution of This Rare Species in Kenya. Asian Plant Research Journal, 6(1), 1-5. https://doi.org/10.9734/aprj/2020/v6i130116
Section
Short communication

References

Verdcourt B. The genus Monochoria (pontederiaceae) in Africa. Kirkia. 1960;1: 80-83.

Duvail S, Médard C, Hamerlynck O, Nyingi DW. Land and water grabbing in an East African coastal wetland: The case of the Tana delta. Water Alternatives. 2012;5: 322-343.

Glen R. Monochoria africana (Solms) NE Br. (Pontederiaceae); 2006.

Naderifar M, Goli H, Ghaljaie F. Snowball sampling: A purposeful method of sampling in qualitative research. Strides in Development of Medical Education, 2017; 14(3):1-6.

Madsen JD, Wersal RM. A review of aquatic plant monitoring and assessment methods. Journal of Aquatic Plant Management. 2017;55(1):1-12.

Gould D, Griffiths G, Johnson R, Tannas C, Tannas K, Holcroft A, Williams J. Alberta Native Plant Council; 2000.

Boyce MS. Population viability analysis. Annual Review of Ecology and Systematics. 1992;23:481-506.

Lande R Mutation and Conservation. Conservation Biology 1995;9:782–91.

Ryan D. Phillips, Rod peakall, Bryony A. Retterkirke Montgomery, Myles Belinda J. Davis, Christine Hayes, Graham R. Brown, Nigel D. Swartsand, Kingsley W. Dixon. Pollinator rarity as a threat to a plant with a specialized pollination system Botanical Journal of the Linnean Society. 2015;179, 511–525.

Mason HL The edaphic factor in narrow endemism. The nature of environmental influences. Madrono. 1946;8:209–226.

Naz N, Hameed M, Nawaz T, Aqeel Ahmad MS, Ashraf M. Soil-plant relationships in the arid saline desert of Cholistan. Arid Land Research and Management. 2013;27:140–52.

DOI: 10.1080/15324982.2012.719576

Finlay CMV, Bradley CR, Preston SJ, et al. Low genetic diversity and potential inbreeding in an isolated population of alder buckthorn (Frangula alnus) following a founder effect. Sci Rep. 2017;7:3010.

Available:https://doi.org/10.1038/s41598-017-03166-1