More information:

Joubert, D.F., Smit, G.N. and Hoffman, M.T. 2012. The role of fire in preventing transitions from a grass dominated state to a bush thickened state in arid savannas. Journal of Arid Environments, 87(2012): 1–7


Description:

The role of fire in preventing transitions from a grass dominated state to a bush thickened state in arid savannas.

Summary / Notes:

We investigated the role of fire in controlling bush thickening in arid savannas. Three controlled fires were initiated to investigate the responses of planted seedlings, saplings and mature shrubs. The stem diameters of seedlings, saplings and mature shrubs prior to the fire were measured. Other dimensions of the saplings and mature shrubs such as leaf mass were also estimated. The intensity of each fire was estimated. Fire temperatures adjacent to seedlings saplings and mature shrubs were measured using fire paints on steel plates. All three fires were moderately hot. One year after each fire, the mortality of seedlings in the fire treatments was very high (97.1–99.3%) and significantly greater than in adjacent controls (16.1–51.6%). Mortality and topkill of saplings and mature shrubs were negatively related to stem diameter. Fire temperature did not significantly affect mortality and topkill in most cases. Surviving saplings showed a much greater resprout response, relative to pre fire size, than larger shrubs and trees. Our results suggest that fire is crucial in interrupting the transition from open grassy savanna to thicket in arid savannas. Managers who prevent fires at this stage are likely to experience bush thickening in the future. Keywords: Acacia mellifera, Bush thickening, Recruitment, Seedling, Saplings.

Year: 2012

Type: Journal Article

URL: http://www.sciencedirect.com/science/article/pii/S0140196312001814


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
Versfeld, W.v.R. 1985. Verdbrand as 'n hulpmiddel in die beheer van bosindringing. Agricola, 2: 22-24
  » More info & related results
1985Ministry of Agriculture, Water and ForestryJournal Article546 kb pdf
Preview
Tjilumbu, L. and Zimmermann, I. 2009. The influence of patch burning in the Thornbush 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 Presentation6.34 mb pdf
Preview
Frantz, D., Schneibel, A., Stellmes, M., Revermann, R. and Finckh, M. 2013. Caiundo - Earth Observation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 87-89
  » More info & related results
2013 Journal Article2.35 mb pdf
Preview
Zimmermann, I. and Mwazi, F.N. 2002. The effect of a prescribed burn, followed up with browsing pressure, on rangeland condition in the Mountain savanna and Karstveld of Namibia. Dinteria, 27: 49-57
  » More info & related results
2002Namibia Scientific SocietyJournal Article183 kb pdf
Preview
Burke, A. 2002. Fire Impacts on the Vegetation in the Kavango Region for Environmental Profile of the Kavango Regio Project
  » More info & related results
2002 Report177 kb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2013. Monthly Burned Area Report, November 2013
  » More info & related results
2013Ministry of Agriculture, Water and ForestryReport1.49 mb pdf
Preview
Potgieter, A.L.F. and Gertenbach, W. 1990. Die rol van vuur by die beheer van bosindringing met spesiale verywysing na die nasionale Krugerwildtuin. Agricola, 8: 27-30
  » More info & related results
1990Ministry of Agriculture, Water and ForestryJournal Article691 kb pdf
Preview
Trigg, S. 2000. Fire monitoring and management in Namibia. IFFN No. 22 - April 2000, 49-53
  » More info & related results
2000 Report290 kb 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
Lohmann, D., Tietjen, B., Blaum, N., Joubert, D.F. and Jeltsch, F. 2014. Prescribed fire as a tool for managing shrub encroachment in semi-arid savanna rangelands. Journal of Arid Environments, 107: 49–56
  » More info & related results
2014 Journal Article
Barnes, M.E. 2001. Effects of large herbivores and fire on the regeneration of Acacia erioloba woodlands in Chobe National Park, Botswana. African Journal of Ecology, 39(4): 340–350
  » More info & related results
2001 Journal Article
von Breitenbach, F. 1968. Long-term plan of forestry development in the Eastern Caprivi Zipfel. Department of Forestry, Indigenous Forest Office, Saasveld, George, Cape Province
  » More info & related results
1968 Report58.7 mb pdf
Preview
Russell-Smith, J., Monagle, C., Jacobsohn, M., Beatty, R.L., Bilbao, B., Millán, A., Vessuri, H. and Sánchez-Rose, I. 2013. Can savanna burning projects deliver measurable greenhouse emissions reductions and sustainable livelihood opportunities in fire-prone settings?. Climatic Change
  » More info & related results
2013 Journal Article357 kb 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
Humphrey, G.J. 2016. The role of humans in the complex fire, climate and vegetation regimes of North-East Namibia. Annual Research Report, 2015. Submitted to Ministry of Environment and Tourism (MET), 13th January 2016
  » More info & related results
2016 Report2.81 mb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2016. Monthly Burned Area Report, July 2016
  » More info & related results
2016 Report1.45 mb pdf
Preview
Chalmandrier, L., Midgley, G.F., Barnard, P. and Sirami, C. 2013. Effects of time since fire on birds in a plant diversity hotspot. Acta Oecologica, 49: 99-106
  » More info & related results
2013 Journal Article
Röder, A., Schneibel, A., Stellmes, M. and Frantz, D. 2013. Mashare - Earth Observation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 113-115
  » More info & related results
2013 Journal Article2.39 mb pdf
Preview
De Cauwer, V. 2013. Mashare - Woody Vegetation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 117-119
  » More info & related results
2013 Journal Article2.42 mb pdf
Preview
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. and Finckh, M. 2013. Caiundo - Vegetation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 91-96
  » More info & related results
2013 Journal Article3.4 mb pdf
Preview
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
Bucini, G. and Hanan, N.P. 2007. A continental-scale analysis of tree cover in African savannas. Global Ecology and Biogeography, 16(5): 93-605
  » More info & related results
2007 Journal Article
Sheuyange, A. Landscape level vegetation change in relation to fire history in eastern Ohangwena Region, Namibia. Master of Science in Management of Natural Resources and Sustainable Agriculture (MNRSA) - Thesis
  » More info & related results
 Thesis4.97 mb pdf
Preview
Scholes, R.J., Ward, D.E. and Justice, C.O. 1996. Emissions of trace gases and aerosol particles due to vegetation burning in southern hemisphere Africa. Journal of Geophysical Research: Atmospheres (1984–2012), 101(D19): 23677–23682
  » More info & related results
1996 Journal Article
Holz, G. and Schreuder, W. 1989. 3. Phoma glomerata, P. eupyrena and P. cava on seeds of blackthorn (Acacia mellifera subsp. detinens) and their pathogenicity on blackthorn seedlings. Agricola, 7: 43-47
  » More info & related results
1989Ministry of Agriculture, Water and ForestryJournal Article960 kb pdf
Preview
van Rensburg, W.L.J. 1990. Groeikragtigheid en saadontkieming by weiplante. Agricola, 8: 31-34
  » More info & related results
1990Ministry of Agriculture, Water and ForestryJournal Article902 kb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2014. Monthly Burned Area Report, July 2014
  » More info & related results
2014Ministry of Agriculture, Water and ForestryReport1.47 mb pdf
Preview
Heinl, M., Frost, P., Vanderpost, C. and Sliva, J. 2007. Fire activity on drylands and floodplains in the southern Okavango Delta, Botswana. Journal of Arid Environments, 68(1): 77–87
  » More info & related results
2007 Journal Article
Ministry of Agriculture, Water and Forestry. 2014. Monthly Burned Area Report, August 2014
  » More info & related results
2014Ministry of Agriculture, Water and ForestryReport1.52 mb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2014. Monthly Burned Area Report, September 2014
  » More info & related results
2014Ministry of Agriculture, Water and ForestryReport1.66 mb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2014. Monthly Burned Area Report, October 2014
  » More info & related results
2014Ministry of Agriculture, Water and ForestryReport1.84 mb pdf
Preview
Siegfried, W.R. 1981. The incidence of veld-fire in the Etosha National Park, 1970-1979. Madoqua, 12(4): 225-230
  » More info & related results
1981 Journal Article350 kb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2015. Monthly Burned Area Report, July 2015
  » More info & related results
2015Ministry of Agriculture, Water and ForestryReport1.28 mb pdf
Preview
Trollope, W.S.W. 1982. Ecological Effects of Fire in South African Savannas. Ecology of Tropical Savannas, 42: 292-306
  » More info & related results
1982 Journal Article
Trollope, W.S.W. 2011. Personal perspectives on commercial versus communal African fire paradigms when using fire to manage rangelands for domestic livestock and wildlife in southern and east African ecosystems. Fire Ecology, 7(1): 57-73
  » More info & related results
2011 Journal Article4.27 mb pdf
Preview
Ministry of Agriculture, Water and Forestry. 2015. Monthly Burned Area Report, November 2015
  » More info & related results
2015Ministry of Environment and TourismReport1.85 mb pdf
Preview
Günster, A. 1992. Aerial seed banks of the central Namib: The distribution of serotinous plants in relation to climate and habitat. Journal of Biogeography, 19:563-572
  » More info & related results
1992 Journal Article
Günster, A. 1994. Phenological niches of coexisting serotinous plants in the Namib Desert. Journal of Tropical Ecology, 10: 531-544
  » More info & related results
1994 Journal Article
Fischer, C., Kollmann, J. and Wagner, T.C. 2015. How does the seed fate of Crotalaria podocarpa DC, a highly competitive herbaceous legume in arid rangelands, contribute to its establishment probability?. Perspectives in Plant Ecology, Evolution and Systematics, 17(5): 405–411
  » More info & related results
2015 Journal Article
Ministry of Agriculture, Water and Forestry. 2016. Monthly Burned Area Report, August 2016
  » More info & related results
2016 Report1.47 mb pdf
Preview
Joubert, D., Rust, A., Smit, G., and Hoffman, M. 2017. Growth rates and mortality patterns of Acacia mellifera subsp. detinens in the semi-arid Highland Savanna, Namibia: Encroachment is not as rapid as previously believed. Namibian Journal of Environment, 1(A): 1-5
  » More info & related results
2017 Journal Article1.09 mb pdf
Preview
Van Wilgen, B.W., Andreae, M.O., Goldammer, J.G. and Lindesay, J.A. 1997. Fire in southern African savannas: ecological and atmospheric perspectives. Johannesburg, South Africa: Witwatersrand University Press
  » More info & related results
1997 Book, Book Section, Booklet
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
De Cauwer, V. and Mertens, J. 2018. Impact of fire on the Baikiaea woodlands. In: Revermann, R., Krewenka, K.M., Schmiedel, U., Olwoch, J.M., Helmschrot, J. and Jürgens, N. (eds.) Climate change and adaptive land management in southern Africa - assessments, changes, challenges, and solutions. Biodiversity and Ecology, 6: 334-335. Klaus Hess Publishers, Göttingen & Windhoek
  » More info & related results
2018 Book, Book Section, Booklet967 kb pdf
Preview
Joubert, D.F., Stolter, C., Krewenka, K.M., Uunona, N., et al. 2018. Impacts of fire history in a semi-arid woodland savanna. In: Revermann, R., Krewenka, K.M., Schmiedel, U., Olwoch, J.M., Helmschrot, J. and Jürgens, N. (eds.) Climate change and adaptive land management in southern Africa - assessments, changes, challenges, and solutions. Biodiversity and Ecology, 6: 207-218. Klaus Hess Publishers, Göttingen & Windhoek
  » More info & related results
2018 Book, Book Section, Booklet4.05 mb pdf
Preview
Stellmes, M., Frantz, D., Finckh, M. and Revermann, R. 2013. Okavango Basin - Earth Observation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 23-27
  » More info & related results
2013 Journal Article2.97 mb pdf
Preview
Humphrey, G. 2018. The role of humans, climate and vegetation in the complex fire regimes of north-east Namibia. PhD Thesis, Department of Biological Sciences, University of Cape Town, July 2018
  » More info & related results
2018 Thesis12.59 mb pdf
Preview
Humphrey, G. 2018. The role of humans, climate and vegetation in the complex fire regimes of north-east Namibia - Executive Summary. PhD Thesis, Department of Biological Sciences, University of Cape Town, July 2018
  » More info & related results
2018 Thesis4.49 mb pdf
Preview
TAP: Acacia mellifera subsp mellifera
  » More info & related results
2005Tree Atlas of NamibiaShapefile83 kb zip1 kb kmz

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