The status of Lewis Glacier of Mount Kenya and the threat to Novel microbial communities
Paper Details
The status of Lewis Glacier of Mount Kenya and the threat to Novel microbial communities
Abstract
The disappearance of African glaciers is of great concern. Most important is the status of Lewis glacier, the smallest glacier in Africa that is rapidly melting. Lewis glacier is a well-documented tropical glacier that experiences a rapid retreat establishing deglaciated foreland. The steep elevation and lack of accumulation layer for Lewis glacier is a possible factor to the rapid loss of its content. The greatest concern is the microbial communities that are lost through the flowing glacier material. The psychrophilic microbes of the glacier are lost in the supraglacial and subglacial to the glacier melting points. The glacier melt, however, creates a deglaciated terrestrial foreland that is recolonized by bacteria, fungi and vascular plants. Most of the foreland community structures are dynamic and differ from the glacier ecology due to various microbial activities including nutrient cycling and mineralization of the rocks. These geochemical process make the glacier foreland to be a chronological ecosystem with spatial biodiversity. The primary foreland is colonized by the bacteria, that prepare the habitat for the saprophytic and mycorrhizal associations. Most of the plants, especially the Senecio keniophytum form symbiotic association with some of the nitrogen fixing microorganisms. The ecological change from glacier ecosystem to foreland soil totally creates a new ecosystem with spatial biodiversity that need to be fully investigated for informative conclusions.
Anwa A, Flickr, Kilimanjaro M, (n.d.). 1991. Location of Africa’s present-day glaciers, marked with solid red triangles. Redrawn from Young and Hastenrath. Thematic Focus: Climate change and Ecosystem management.
Bardgett RD, Richter A, Bol R, Garnett MH, Bäumler R, Xu X, Wanek W. 2007. Heterotrophic microbial communities use ancient carbon following glacial retreat. Biology Letters 3, 487-490.
De Smet WH, Van Rompu EA. 1994. Rotifera and Tardigrada from some cryoconite holes on a Spitsbergen (Svalbard) glacier. Belgian Journal of Zoology 124, 27-37.
Hastenrath S. 1983. Net balance, surface lowering, and ice-flow pattern in the interior of Lewis Glacier, Mount Kenya, Kenya. Journal of Glaciology 29, 392-402.
Hodgkins R, Cooper R, Tranter M, Wadham J. 2013. Drainage-system development in consecutive melt seasons at a polythermal, Arctic glacier, evaluated by flow-recession analysis and linear-reservoir simulation. Water Recourses Research 49, 4230-4243.
Hodson A, Anesio A. M, Tranter M, Fountain A G, Osborn M, Priscu J, Laybourn-Parry J, Sattler B. 2008. Glacial Ecosystems Recommended Citation. Glacial Ecosystems. Ecological Monographs 78, 41-67.
Hodson A, Cameron K, Bøggild C, Irvine-Fynn T, Langford H, Pearce D, Banwart S. 2010. The structure, biological activity and biogeochemistry of cryoconite aggregates upon an arctic valley glacier: Longyearbreen, Svalbard. Journal of Glaciology 56, 349-362.
Kaštovská K, Stibal M, Šabacká M, Černá B, Šantrůčková H, Elster J. 2007. Microbial community structure and ecology of subglacial sediments in two polythermal Svalbard glaciers characterized by epifluorescence microscopy and PLFA. Polar Biology 30, 277-287.
Kühnel R, Roberts TJ, Björkman MP, Isaksson E, Aas W, Holmén K, Ström J. 2011. 20-Year Climatology of Advances in Meteorology. 2011, 1-10.
Langford H, Hodson A, Banwart S, Bøggild C. 2010. The microstructure and biogeochemistry of Arctic cryoconite granules. Annals of Glaciology 51, 87-94.
MacDonell S, Fitzsimons S. 2008. The formation and hydrological significance of cryoconite holes. Progress in Physical Geography 32, 595-610.
Margesin R, Gander S, Zacke G, Gounot AM, Schinner F. 2003. Hydrocarbon degradation and enzyme activities of cold-adapted bacteria and yeasts. Extremophiles. 7, 451-458.
Nemergut DR, Anderson SP, Cleveland CC, Martin AP, Miller AE, Seimon A, Schmidt SK. 2007. Microbial community succession in an unvegetated, recently deglaciated soil. Microbial Ecology 53, 110-122.
Porazinska DL, Fountain AG, Nylen TH, Tranter M, Virginia RA, Wall DH. 2004. The Biodiversity and biogeochemistry of cryoconite holes from McMurdo Dry Valley glaciers, Antarctica. Arct. Antarct. Alp. Res 36, 84-91.
Prinz R, Fischer A, Nicholson L, Kaser G. 2011. Seventy-six years of mean mass balance rates derived from recent and re-evaluated ice volume measurements on tropical Lewis Glacier, Mount Kenya. Geophys Research Letter.
Prinz R, Nicholson L, Kaser G. 2012. VARIATIONS OF THE LEWIS GLACIER, MOUNT KENYA, 2004-2012. Erdkunde 255-262.
Säwström C, Mumford P, Marshall W, Hodson A, Laybourn-Parry J. 2002. The microbial communities and primary productivity of cryoconite holes in an Arctic glacier (Svalbard 79 degrees N). Polar Biology 25, 591-596.
Schütte UME, Abdo Z, Foster J, Ravel J, Bunge J, Solheim B, Forney LJ. 2010. Bacterial diversity in a glacier foreland of the high Arctic. Molecular Ecology 19, 54-66.
Sigler WV, Crivii S, Zeyer J. 2002. Bacterial succession in glacial forefield soils characterized by community structure, activity and opportunistic growth dynamics. Microbial Ecology 44, 306-316.
Stibal M, Lawson EC, Lis GP, Mak KM, Wadham JL, Anesio AM. 2010. Organic matter content and quality in supraglacial debris across the ablation zone of the Greenland ice sheet. Annals of Glaciology 51, 1-8.
Stibal M, Tranter M. 2007. Laboratory investigation of inorganic carbon uptake by cryoconite debris from Werenskioldbreen, Svalbard. J. Geophys. Research Biogeosciences 112.
Takeuchi N, Kohshima S, Seko K. 2001. Structure, Formation, and Darkening Process of Albedo-Reducing Material (Cryoconite) on a Himalayan Glacier: A Granular Algal Mat Growing on the Glacier. Arctic Antarctic Alpine Research 33, 115-122.
Takeuchi N, Kohshima S, Yoshimura Y, Seko K, Fujita K. 2000. Characteristics of cryoconite holes on a Himalayan glacier, Yala Glacier Central Nepal Bulletin Glaciology 17, 51-59.
Trenberth KE, Moore B, Karl TR, Nobre C. 2006. Monitoring and prediction of the earth’s climate: A future perspective. Journal of Climate 19, 5001-5008.
Tscherko D, Rustemeier J, Richter A, Wanek W, Kandeler E. 2003. Functional diversity of the soil microflora in primary succession across two glacier forelands in the Central Alps. European Joournal of Soil Science 54, 685–696.
Uetake J, Tanaka S, Hara K, Tanabe Y, Samyn D, Motoyama H, Imura S, Kohshima S. 2014. Novel biogenic aggregation of moss gemmae on a disappearing african glacier. PLoS ONE 9.
Yoshitake S, Uchida M, Koizumi H, Kanda H, Nakatsubo T. 2010. Production of biological soil crusts in the early stage of primary succession on a High Arctic glacier foreland. New Phytology 186, 451-460.
Josiah Ochieng Kuja, Huxley Mae Makonde, Anne Thairu Muigai, Agnes Omire, Hamadi Iddi Boga, Jun Uetake, 2018. The status of Lewis Glacier of Mount Kenya and the threat to Novel microbial communities. Int. J. Microbiol. Mycol., 7(3), 6-13.
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