More information:

Ernst, W.H.O., Veenendaal, E.M. and Kebakile, M.M. 1992. Possibilities for dispersal in annual and perennial grasses in a savanna in Botswana. Vegetatio, 102(1): 1-11


Description:

Possibilities for dispersal in annual and perennial grasses in a savanna in Botswana.

Summary / Notes:

Dispersal of 11 dominant grass species in the savanna of southern Botswana was investigated. The dispersal is autochorous, anemochorous and epizoochorous independent of the life-cycle (annuals, perennials). Dispersal distances were estimated experimentally. Anemochorous species with a plume-like spikelet such as Chloris virgata and Enneapogon cenchroides have a low rate of descent (<1 m s-1) and a low Reynold number (100–110). Nevertheless they can only be transported up to 13 m from the originating infructescence at a wind velocity of 10 m s-1. Therefore, the majority of the disseminules remained near the parent plant. By analysing the seed pool under the canopy of trees of Dichrostachys cinerea epizoochorous species such as Tragus berteronianus were dominant at the cattle resting sites under trees. The results are discussed in relation to the three seed dispersal hypotheses and the model of selective interaction of dispersal, dormancy, and seed site as adaptions to variable environments. Keywords: Anemochory, Autochory, Epizoochory, Savanna grasses, Soil seed bank.

Year: 1992

Type: Journal Article

URL: http://link.springer.com/article/10.1007/BF00031700


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
Yeaton, R.I. 1990. The structure and function of the Namib Dune grasslands: species interactions. Journal of Arid Environments, 18(3): 343-349
  » More info & related results
1990DRFN DLIBJournal Article
Ernst, W.H.O., Veenendaal, E.M. and Kebakile, M.M. 1992. Possibilities for dispersal in annual and perennial grasses in a savanna in Botswana. Vegetatio, 102(1): 1-11
  » More info & related results
1992 Journal Article
Vlieghe, K., Picker, M., Ross-Gillespie, V. and Erni, B. 2015. Herbivory by subterranean termite colonies and the development of fairy circles in SW Namibia. Ecological Entomology, 40: 42-49
  » More info & related results
2015 Journal Article
Zimmermann, J., Higgins, S.I., Grimm, V., Hoffmann, J. and Linstädter, A. 2010. Grass mortality in semi-arid savanna: The role of fire, competition and self-shading. Perspectives in Plant Ecology, Evolution and Systematics, 12(2010): 1–8
  » More info & related results
2010 Journal Article274 kb pdf
Preview
Seely, M.K. 1978. Standing crop as an index of precipitation in the Central Namib grassland. Madoqua, 11(1): 61-68
  » More info & related results
1978 Journal Article557 kb pdf
Preview
Cramer, M.D. and Barger, N.N. 2013. Are Namibian "Fairy Circles" the consequence of self-organizing spatial vegetation patterning? PLoS ONE, 8(8): e70876
  » More info & related results
2013 Journal Article1.85 mb pdf
Preview
Meyer, J.J.M., Senejoux, F., Heyman, H.M., Meyer, N.L. and Meyer, M.A. 2015. The occurrence of triterpenoids from Euphorbia gummifera inside the fairy circles of Garub in the southern Namibian pro-desert. South African Journal of Botany, 98: 10–15
  » More info & related results
2015 Journal Article
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
Harmse, C.J., Kellner, K. and Dreber, N. 2016. Restoring productive rangelands: A comparative assessment of selective and non-selective chemical bush control in a semi-arid Kalahari savanna. Journal of Arid Environments, 135: 39–49
  » More info & related results
2016 Journal Article
NNF. Savannas of Namibia
  » More info & related results
 Poster6.48 mb pdf
Preview
Ward, D. and Ngairorue, B.T. 2000. Are Namibia's grasslands desertifying?. Journal of Range Management, 53: 138-144
  » More info & related results
2000 Journal Article111 kb pdf
Preview
Espach, C., Lubbe, L.G. and Ganzin, N. 2009. Determining grazing capacity in Namibia with the aid of remote sensing. African Journal of Range and Forage Science, Volume 26(3): 133-138
  » More info & related results
2009 Journal Article
Vogel, M. and Strohbach, M. 2009. Monitoring of savanna degradation in Namibia using Landsat TM/ETM+ data. Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS. 12-17 July 2009, Volume: 3: III-931 - III-934
  » More info & related results
2009 Journal Article
Blench, R. and Sommer, F. 1999. Understanding rangeland biodiversity. London: Overseas Development Institute
  » More info & related results
1999 Report
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 Article
Strohbach, B.J. 2000. Vegetation degradation trends in the northern Oshikoto Region: III. The Terminalia prunioides woodlands and Andoni grasslands. Dinteria, 26: 77-92
  » More info & related results
2000Namibia Scientific SocietyJournal Article518 kb pdf
Preview
Hochschild, V., Märker, M., Rodolfi, G. and Staudenrausch, H. 2003. Delineation of erosion classes in semi-arid southern African grasslands using vegetation indices from optical remote sensing data. Hydrological Processes, 17(5): 917-928
  » More info & related results
2003DRFN DLIBJournal Article
Jobst, P., Kakukuru, E., Kambutuku, J.R., Mouton, D., Netha, L., Nghitila, T.M., Shanyengana, S.E. and Siyambango, M.S. 1994. SDP 3: An investigation into the biophysical aspects and socio-economics of desertification in north western Namibia. (Climate variability, desertification and loss of biodiversity)
  » More info & related results
1994DRFN DLIBReport1.43 mb pdf
Preview
Schlesinger, W.H., Reynolds, J.F., Cunningham, G.L., Huenneke, L.F., Jarrell, W.M., Virginia, R.A. and Whitford, W.G. 1990. Biological Feedbacks in Global Desertification. Science, 247(4946): 1043-1048
  » More info & related results
1990DRFN DLIBJournal Article
Milton, S.J. and Dean, W.R.J. 2000. Disturbance, drought and dynamics of desert dune grassland, South Africa. Plant Ecology, 150(1-2): 37-51
  » More info & related results
2000 Journal Article
Higgins, S., Bond W.J., Trollope W.S.W. 2000. Fire, resprouting and variability: a recipe for grass-tree coexistence in savanna. Journal of Ecology, 88: 213 - 229
  » More info & related results
2000 Journal Article
Seymour, C.L. 2008. Grass, rainfall and herbivores as determinants of Acacia erioloba (Meyer) recruitment in an African savanna. Plant Ecology, 197(1): 131-138
  » More info & related results
2008 Journal Article
Huntley, B.J. 1982. Southern African Savannas. In: Ecology of Tropical Savannas - Ecological Studies, 42: 101-119
  » More info & related results
1982 Book, Book Section, Booklet
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
Mudumu National Park - Zambezi Region. Namibia Parks and Wildlife
  » More info & related results
 Book, Book Section, Booklet837 kb pdf
Preview
Bwabwata National Park - Kwando Core Area. Namibia Parks and Wildlife
  » More info & related results
 Book, Book Section, Booklet1.5 mb 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
Juergens, N. 2014. Exploring common ground for different hypotheses on Namib fairy circles. Ecography. doi: 10.1111/ecog.01232
  » More info & related results
2014 Journal Article
Christian, I. 1998. Grazing Management Study. Prepared for NOLIDEP - The Northern Regions Livestock Development Project
  » More info & related results
1998 Report19.44 mb pdf
Preview
Graz, P. 2008. The woody weed encroachment puzzle: gathering pieces. Ecohydrology, 1(4): 340–348
  » More info & related results
2008 Journal Article145 kb pdf
Preview
Strohbach, B.J. and Walters, H.J.A. 2015. An overview of grass species used for thatching in the Zambezi, Kavango East and Kavango West Regions, Namibia. Dinteria, 35: 13-42
  » More info & related results
2015 Journal Article1.3 mb pdf
Preview
The Southern African Institute for Environmental Assessment. 2009. Rural Poverty Reduction Programme 9 ACP NAM 012 - Strategic Environmental Assessment of replication of the Project Combating Bush Encroachment for Namibia's Development (CBEND, Contract No RPRP-123022-34). Windhoek, March 2009
  » More info & related results
2009 Report2.54 mb pdf
Preview
Ludwig, A., Meyer, H. and Nauss, T. 2016. Automatic classification of Google Earth images for a larger scale monitoring of bush encroachment in South Africa. International Journal of Applied Earth Observation and Geoinformation, 50: 89–94
  » 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
Hoetzel, S., Dupont, L.M. and Wefer, G. 2015. Miocene–Pliocene vegetation change in south-western Africa (ODP Site 1081, offshore Namibia). Palaeogeography, Palaeoclimatology, Palaeoecology, 423: 102–108
  » More info & related results
2015 Journal Article
Mayra, M.J., Vanselow, K.A. and Samimi, C. 2018. Fire regimes at the arid fringe: A 16-year remote sensing perspective (2000–2016) on the controls of fire activity in Namibia from spatial predictive models. Ecological Indicators, 91: 324-337
  » More info & related results
2018 Journal Article
Schneibel, A., Stellmes, M., Frantz, D., Finckh, M. and Revermann, R. 2013. Cusseque - Earth Observation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 55-57
  » More info & related results
2013 Journal Article2.34 mb pdf
Preview
Revermann, R., Maiato, F., Gomes, A., Lages, F. and Finckh, M. 2013. Cusseque - Vegetation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 59-63
  » More info & related results
2013 Journal Article3.25 mb pdf
Preview
Muller, M.A.N. 1985. Invasive alien plants in commercial grazing areas, urban areas, diamond areas and Hereroland. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 1-5
  » More info & related results
1985 Book, Book Section, Booklet426 kb pdf
Preview
Hines, C.J.H., Schlettwein, C.H.G. and Kruger, W. 1985. Invasive alien plants in Bushmanland, Owanbo, Kavango and Caprivi. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 6-12
  » More info & related results
1985 Book, Book Section, Booklet726 kb pdf
Preview
Nott, K. 1985. Invasive alien plants in the Etosha National Park. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 13-15
  » More info & related results
1985 Book, Book Section, Booklet545 kb pdf
Preview
Jones, R.W. and Jankowitz, W. 1985. Invasive alien plants in the Waterberg Plateau Park. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 16-18
  » More info & related results
1985 Book, Book Section, Booklet565 kb pdf
Preview
Tarr, P.W. and Loutit, R. 1985. Invasive alien plants in the Skeleton Coast Park, Western Damaraland and Western Kaokoland. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 19-23
  » More info & related results
1985 Book, Book Section, Booklet643 kb pdf
Preview
Vinjevold, R.D., Bridgeford, P. and Yeaton, D. 1985. Invasive alien plants in the Namib-Naukluft Park. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 24-27
  » More info & related results
1985 Book, Book Section, Booklet578 kb pdf
Preview
Scheepers, L. 1985. A strategy for the control of alien plant in South West Africa/Namibia. In: Brown, C.J., Macdonald, I.A.W. and Brown, S.E. (Editors). Invasive alien organisms in South West Africa/Namibia. National Scientific Programmes Unit: CSIR, SANSP Report 119, 1985, page 28-30
  » More info & related results
1985 Book, Book Section, Booklet165 kb pdf
Preview
Richter, C.G.F., Snyman, H.A. and Smit, G.N. 2001. The influence of tree density on the grass layer of three semi-arid savanna types of southern Africa. African Journal of Range and Forage Science, 18(2): 103-109
  » More info & related results
2001 Journal Article
Rietkerk, M. and van de Koppel, J. 2000. Herbivore regulation and irreversible vegetation change in semi-arid grazing systems. Oikos, 90(2): 253-260
  » More info & related results
2000DRFN DLIBJournal Article176 kb pdf
Preview
Donaldson, C.H. 1986. Bloubuffelsgras (Cenchrus ciliaris). Agricola, 3: 19-25
  » More info & related results
1986Ministry of Agriculture, Water and ForestryJournal Article1.23 mb pdf
Preview
Burke, A. 2001. An erution of green - the Brukkaros Mountain springs to life. Flamingo, May 2001: 37-40
  » More info & related results
2001 Book, Book Section, Booklet2.4 mb pdf
Preview
Burke, A. 2005. A biodiversity treasure trove on Windhoek's doorstep. Flamingo, June 2005: 52-45
  » More info & related results
2005 Book, Book Section, Booklet2.35 mb pdf
Preview

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