More information:

Getzin, S. and Yizhaq, H. 2019. Unusual Namibian fairy circle patterns in heterogeneous and atypical environments. Journal of Arid Environments, 164: 85-89


Description:

Unusual Namibian fairy circle patterns in heterogeneous and atypical environments.

Summary / Notes:

Under homogeneous habitat conditions, fairy circles are extremely ordered grassland gaps that are densely packed and that function as an extra source of water for the surrounding matrix vegetation. While the origin of fairy circles is still disputed, most of the research has so far focused on such typical habitat conditions where the fairy circles are almost round and have a grid-like hexagonal pattern. However, Namibian fairy circles also occur under atypical habitat conditions where topographical heterogeneity or extreme aridity are forcing the circles to change their shapes and patterns. In this pilot study, we are describing some striking and new examples how shapes and patterns of fairy circles may change under such atypical environmental conditions. We emphasize the need to study fairy circles in disturbed catchment areas, mega circles in drainage lines, as well as soil-water budgets of irregularly spaced fairy circles in very arid locations. Furthermore, there is need to understand the formation of the very large mega circles and desertification fronts in flat habitat. Finally, we also discuss the potential role of abiotic drivers such as soil-crust formation in the vegetation matrix or aeolian erosion and subsequent de-rooting of grasses in forming unusual fairy circle shapes, sizes and patterns. Keywords: Desertification front, Eco-hydrology, Fairy circles, Heterogeneity, Soil crust, Wind erosion.

Year: 2019

Type: Journal Article

URL: https://doi.org/10.1016/j.jaridenv.2019.01.017


Top 50 related results:

You may also be interested in the following items which are on a similar or related topic, listed in order of similarity.

Results per page:

Results: 1 to 50 of 50

To FILTER: Use the pale green row to filter the results on this page. Type in text or select from the year list.

Rows matching filter(s): All
What is this row? 
Data titleYearOriginFile typeDownloadkml/kmz
Bond, W., Midgley, G.F. and Woodward, F. 2003. What controls South African vegetation-climate or fire? South African Journal of Botany, 69(1): 79-91
  » More info & related results
2003 Journal Article292 kb pdf
Preview
Picker, M.D., Ross-Gillespie, V., Vlieghe, K. and Moll, E. 2012. Ants and the enigmatic Namibian fairy circles – cause and effect?. Ecological Entomology, 37(1): 33–42
  » More info & related results
2012 Journal Article
Strohbach, B.J., Ntesa, C., Kabajani, M.W., Shidolo, E.K. and D'Alton, C.D. 2015. Prosopis encroachment along the Fish River at Gibeon, Namibia. I. Habitat preferences, population densities and the effect on the environment. Dinteria, 35: 53-73
  » More info & related results
2015 Journal Article850 kb pdf
Preview
Beyer, M., Koeniger, P., Gaj, M., Hamutoko, J.T., Wanke, H. and Himmelsbach, T. 2016. A deuterium-based labeling technique for the investigation of rooting depths, water uptake dynamics and unsaturated zone water transport in semiarid environments. Journal of Hydrology, 533: 627–643
  » More info & related results
2015 Journal Article
Cracknell, A.P. 1999. The Advanced Very High Resolution Radiometer (AVHRR)
  » More info & related results
1999 Book, Book Section, Booklet
Etosha National Park - Profile
  » More info & related results
Ministry of Environment and TourismBook, Book Section, Booklet235 kb pdf
Preview
Kepner, W.G., Watts, C.J., Edmonds, C.M., Maingi, J.K., Marsh, S.E. and Luna, G. 2000. A landscape approach for detecting and evaluating in a semi-arid environment. Environmental Monitoring and Assessment, 64: 179-195
  » More info & related results
2000DRFN DLIBJournal Article220 kb pdf
Preview
Desoyza, A.G., Whitford, W.G., Turner, S.J., Van Zee, J.W. and Johnson, A.R. 2000. Assessing and monitoring the health of western rangeland watersheds. Environmental Monitoring and Assessment, 64(1): 153-166
  » More info & related results
2000DRFN DLIBJournal Article
Kogan, F.N. 1998. A typical pattern of vegetation conditions in southern Africa during El Nino years detected from AVHRR data using three-channel numerical index. International Journal of Remote Sensing, 19(18): 3688-3694
  » More info & related results
1998DRFN DLIBJournal Article
Jürgens, N., Oldeland, J., Hachfeld, B., Erb, E. and Schultz, C. 2013. Ecology and spatial patterns of large-scale vegetation units within the central Namib Desert. Journal of Arid Environments, 93: 59–79
  » More info & related results
2013 Journal Article
Boyer, D.C. 1989. Some characteristics of the plant communities of three dunes situated across a climatic gradient in the Namib Desert. Madoqua, 16(2): 141-148
  » More info & related results
1989DRFN DLIBJournal Article404 kb pdf
Preview
von Willert, D.J., Brinckmann, E., Scheitler, B., Thomas, D.A. and Treichel, S. 1979. The activity and malate inhibition/stimulation of phosphoenolpyruvate-carboxylase in crassulacean-acid-metabolism plants in their natural environment. Planta, 147(1): 31-36
  » More info & related results
1979 Journal Article
Bester, F.V. 1988. Die bepaling van die grasproduksie van natuurlike veld. Agricola, 6: 26-30
  » More info & related results
1988Ministry of Agriculture, Water and ForestryJournal Article1.79 mb pdf
Preview
Craven, P., Dreyer, L.L. and van Wyk, A.B. 2009. Floristic groups in Namibia. South African Journal of Botany, 75(2): 397
  » More info & related results
2009 Journal Article
Oldeland, J., Dorigo, W., Lieckfeld, L., Lucieer, A. and Jürgens, N. 2010. Combining vegetation indices, constrained ordination and fuzzy classification for mapping semi-natural vegetation units from hyperspectral imagery. Remote Sensing of Environment, 114(6): 1155–1166
  » More info & related results
2010 Journal Article
Milzow, C., Burg, V. and Kinzelbach, W. 2010. Estimating future ecoregion distributions within the Okavango Delta Wetlands based on hydrological simulations and future climate and development scenarios. Journal of Hydrology, 381(1–2): 89–100
  » More info & related results
2010 Journal Article
Loope, L.L. and Sanchez, P.G. 1988. Biological invasions of arid land nature reserves. Biological Conservation, 44(1–2): 95–118
  » More info & related results
1988 Journal Article
Murray-Hudson, M. 2009. Floodplain vegetation responses to flood regime in the seasonal Okavango Delta, Botswana. PhD Thesis
  » More info & related results
2009 Thesis1.61 mb pdf
Preview
Heinl, M. 2001. Fire and its effects on vegetation in the Okavango Delta, Botswana. MSc-Thesis
  » More info & related results
2001 Thesis4.06 mb pdf
Preview
Strohbach, B. 2000. Soil erosion - causitive factors, extent and prevention. Agri-Info, 6(1):8-14
  » More info & related results
2000 Journal Article631 kb pdf
Preview
Johnson, S.D., Harris, L.F. and Proches, S. 2009. Pollination and breeding systems of selected wildflowers in a southern African grassland community. South African Journal of Botany, 75(4): 630–645
  » More info & related results
2009 Journal Article
Danin, A. 1996. Adaptations of Stipagrostis species to desert dunes. Journal of Arid Environments, 34(3): 297–311
  » More info & related results
1996 Journal Article
Rundel, P.W.and Cowling, R.M. 2007. Biodiversity of The Succulent Karoo and Cape Flora. Encyclopedia of Biodiversity, 1–8
  » More info & related results
2007 Book, Book Section, Booklet
Zimmermann, H.G. 1991. Biological control of mesquite, Prosopis spp. (Fabaceae), in South Africa. Agriculture, Ecosystems and Environment, 37(1–3): 175–186
  » More info & related results
1991 Journal Article
Dupont, L.M. 2006. Late Pliocene vegetation and climate in Namibia (southern Africa) derived from palynology of ODP Site 1082. Geochemistry, Geophysics, Geosystems, 7(5)
  » More info & related results
2006 Journal Article
Musil, C.F., Schmiedel, U. and Midgley, G.F. 2005. Lethal effects of experimental warming approximating a future climate scenario on southern African quartz-field succulents: a pilot study. New Phytologist, 165(2): 539–547
  » More info & related results
2005 Journal Article
Kers, L.E. 1969. On Sphaeranthus similis Kers spec. nov., S. epigaeus Schinz and S. stuhlmannii O. Hoffm. (Compositae), with notes on their distribution, branching and growth-habit. Dinteria, 2: 3-12
  » More info & related results
1969Namibia Scientific SocietyJournal Article1.03 mb pdf
Preview
Giess, W. 1974. Zwei Fahrten zur Jensenobotrya lossowiana Herre. Dinteria, 10: 3-12
  » More info & related results
1974Namibia Scientific SocietyJournal Article1.8 mb pdf
Preview
Geldenhuys, C.J. 1992. Woodland management plan for Nakabunze Reserve, Eastern Caprivi
  » More info & related results
1992 Report67.46 mb pdf
Preview
Joubert, D.F. 2014. The Dynamics of Bush Thickening by Acacia Mellifera in the Highland Savanna of Namibia. PhD, Faculty of Natural and Agricultural Sciences, Department of Animal, Wildlife and Grassland Sciences (Grassland Science), University of the Free State, Bloemfontein, South Africa
  » More info & related results
2014 Thesis3.28 mb pdf
Preview
Ellery, W.N., McCarthy, T.S. and Smith, N.D. 2003. Vegetation, hydrology, and sedimentation patterns on the major distributary system of the Okavango fan, Botswana. Wetlands, 23(2): 357-375
  » More info & related results
2003 Journal Article
Honsbein, D. 2009. The influence of thermo-chemical conversion on rangeland condition. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation3.11 mb pdf
Preview
Lohmann, D., Falk, T., Rossmanith, E., Blaum, N., Tietjen, B., Kirk, M. and Jeltsch, F. 2009. Application of an ecological-economic rangeland management model for interactive role-plays, scientific analyses and training purposes. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation1.19 mb pdf
Preview
Kruger, B. 2009. Cooperative rangeland management of neighboring resettled farms. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation3.42 mb pdf
Preview
Domptail, S. 2009. The role of bio- and landscape diversity in farming strategies - the case of the Keetmanshoop commercial farms. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation643 kb pdf
Preview
Kauatjirue, J., Shamathe, K., Pringle, H.J.R. and Zimmermann, I. 2009. Pilot restoration project in a key fertile valley of the Highland Savanna. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation2.3 mb pdf
Preview
Muheua, S. and Zimmermann, I. 2009. Helminth management in sheep for healthy rangeland. 13th Namibian Rangeland Forum - The role of biodiversity in rangeland management and policy, Neudamm Faculty of Agriculture and Natural Resources, Windhoek, Dates: 27-29 October 2009
  » More info & related results
2009 Presentation6.87 mb pdf
Preview
Lim, S., Chase, B.M., Chevalier, M. and Reimer, P.J. 2016. 50,000 years of vegetation and climate change in the southern Namib Desert, Pella, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology, 451: 197–209
  » More info & related results
2016 Journal Article
Zhang, H. and Sinclair, R. 2015. Namibian fairy circles and epithelial cells share emergent geometric order. Ecological Complexity, 22: 32–35
  » More info & related results
2015 Journal Article
Buyer, J.S., Schmidt-Küntzel, A., Nghikembua, M., Maul, J.E. and Marker, L.L. 2016. Soil microbial communities following bush removal in a Namibian savanna. SOIL, 2: 101–110
  » More info & related results
2016 Journal Article490 kb pdf
Preview
Wagner, T.C., Hane, S., Joubert, D.F. and Fischer, C. 2016. Herbaceous legume encroachment reduces grass productivity and density in arid rangelands. PLoS ONE, 11(11): e0166743
  » More info & related results
2016 Journal Article1.95 mb pdf
Preview
Gröngröft, A., Classen, N. and Petersen, A. 2005. Identification of soil patterns with LANDSAT data in the central Namibian savanna region. Mitteilung der Deutschen Bodenkundlichen Gesellschaft, 107(1): 323-324
  » More info & related results
2005 Journal Article431 kb pdf
Preview
Meyer, P.G. 1973. Neue und wenig bekannte Acanthaceen aus dem Kaokoveld (Südwestafrika). Mitteilungen der Botanischen Staatssammlung München, 11: 101-113
  » More info & related results
1973 Journal Article7.09 mb pdf
Preview
Döderlein, L. 1908. Asterina lüderitziana, eine neue Art aus Sudwest-Afrika. Jahrbuecher Des Vereins Fuer Naturkunde Wiesbaden, 61: 296-298
  » More info & related results
1908 Journal Article585 kb pdf
Preview
Bornman, C.H., Botha, C.E.J. and Nash, L.J. 1973. Welwitschia mirabilis: observations on movement of water and assimilates under föhn and fog conditions. Madoqua, 2(2): 25-31
  » More info & related results
1973 Journal Article950 kb pdf
Preview
Burke, A. 2018. Factors influencing colonisation processes in two contrasting mine sites in the Namib Desert. Journal of Arid Environments, 148: 78-81
  » More info & related results
2018 Journal Article239 kb pdf
Preview
Pedersen, C-E.T., Albrechtsen, A., Etter, P.D., Johnson, E.A., Orlando, L., Chikhi, L., Siegismund, H.R. and Heller, R. 2018. A southern African origin and cryptic structure in the highly mobile plains zebra. Nature Ecology and Evolution, https://doi.org/10.1038/s41559-017-0453-7
  » More info & related results
2018 Journal Article2.45 mb pdf
Preview
Soderberg, K., Henschel, J., Swap, R. and Macko, S. 2011. Environmental controls on C, N and S cycling in plants of the Namib Desert. Geophysical Research Abstracts, 13
  » More info & related results
2011 Journal Article108 kb pdf
Preview
Metzing, D. and Jürgens, N. (eds). 2010. Evolution of succulent plant families - Evolution sukkulenter Pflanzenfamilien. Biodiversity and ECology, 3: 296 pages
  » More info & related results
2010 Journal Article709 kb pdf
Preview
Thiede, J., Metzing, D., Veste, M. and Jürgens, N. (eds). 2004. Succulent Plant Research in Africa. Sukkulentenforschung in Afrika. Festschrift Prof. Dr. Hans-Dieter Ihlenfeldt. Schumannia 4. Isensee, Oldenburg. Biodiversity and Ecology, 2: 250 pages
  » More info & related results
2004 Journal Article

» Links to useful free software for working with shapefiles, kml and kmz files, pdf files and more.