Species composition and spatial heterogeneity of the seed bank and vegetation in protected and disturbed Miombo Woodland at Christon bank, Zimbabwe
Paper Details
Species composition and spatial heterogeneity of the seed bank and vegetation in protected and disturbed Miombo Woodland at Christon bank, Zimbabwe
Abstract
The regeneration potential of Miombo woodland was evaluated by comparing above ground vegetation and seed banks in a protected area (Mazowe Botanical Reserve) and an adjacent disturbed farming area (Thetford Estates). Sampling was conducted in April and May 2012. In each area 30 sampling plots measuring 10×10 m were randomly selected and the species composition and abundance of all the above ground flora was determined. Soils were collected from each plot and the seedling emergence method was used to determine the species composition of seed bank. The results show that more species were recorded in the protected (264 above ground and 118 in seed bank) than in the disturbed area (119 above ground and 89 in seed bank), showing that disturbance factors were impacting on species composition. The results also show the absence of key Miombo woody species and the dominance of grasses and forbs in the seed banks. We interpreted this to mean that the seed banks cannot sustain the recovery of the Miombo woodland after disturbance. We recommend the use of more improved methods for estimating the size of the seed bank as the seedling emergence method used in this case is known to underestimate the seed bank.
Anderson TM, Schütz M, Risch AC. 2012. Seed germination cues and the importance of the soil seed bank across an environmental gradient in the Serengeti. Oikos 121, 306–312.
Campbell BM, Frost P, Byron N. 2006. Miombo Woodlands and their use: overview and key issues. In: Campbell, B. (ed.) The Miombo in Transition: Woodlands and Welfare in Africa. pp. 1-10. Centre for International Forestry Research, Bogor, Indonesia
Chaideftou E, Thanos CA, Bergmeier E, Kallimanis A, Dimopoulos P. 2009. Seed bank composition and above-ground vegetation in response to grazing in sub-Mediterranean oak forests (NW Greece). Plant Ecology 201,255–265.
Chidumayo E, Frost P. 1996. Population Biology for Miombo Trees. In Campbell, B. (ed.). The Miombo in Transition: Woodlands and Welfare in Africa. Center for International Forestry Research (CIFOR), Bogor, Indonesia.
Colwell RK. 2006. Estimates S, Version 9.1. http://viceroy.eeb.uconn.edu/estimates
Dalling JW. 2004. The fate of seed banks: Factors influencing seed survival for light demanding species in moist tropical forests. In Forget, Pierre-Michel [eds.] Seed Fate: Predation, Dispersal and Seedling Establishment pp. 31-44. CAB International, Wallingford
Dewees PA, Campbell BM, Katerere Y, Sitoe A, Cunningham AB, Angelsen A, Wunder S. 2011. Managing the Miombo woodlands of southern Africa. Policies, Incentives, and Options for the Rural Poor. Program on Forests (PROFOR).
Diaz-Villa MD, Marannon T, Arroyo J, Garrido B. 2003. Soil Seed Bank and Floristic Diversity in a Forest-grassland Mosaic in Southern Spain. Journal of Vegetation Science 14, 701- 709.
Dreber N, Oldeland J, van Rooyen GMW. 2011. Species, functional groups and community structure in seed banks of the arid Nama Karoo: Grazing impacts and implications for rangeland restoration. Agriculture, Ecosystems and Environment 141 (3/4), 399-409.
Esmailzadeh O, Hosseini SM, Tabari M. 2011. Relationship Between Soil Seed Bank and Above-ground Vegetation of a Mixed- deciduous Temperate Forest in Northern Iran. Journal of Agricultural Science and Technology 13, 411-424.
Figueroa J A, Teillier S, Jaksic FM. 2004. Composition, size and dynamics of the seed bank in a Mediterranean shrubland of Chile. Austral Ecology 29,574–584.
Hopfensperger K. 2007. A review of similarity between seed bank and standing vegetation across ecosystems. Oikos 116, 1438-1448.
Lyaruu HVM, Backéus I. 1999. Soil seed bank and regeneration potential on eroded hill slopes in the Kondoa Irangi Hills, central Tanzania. Applied Vegetation Science 2, 209-214.
Li Q, Fang H, Cai Q. 2011. Persistent soil seed banks along altitudinal gradients in the Qilian Mountains in China and their significance for conservation management. African Journal of Agricultural Research 6 (10), 2329-2340.
Luoga EJ. 2000. The effect of human disturbances on diversity and dynamics of eastern Tanzania Miom-bo arborescent species. Unpublished Dphil thesis, University of the Witwatersrand, South Africa.
Luoga EJ, Witkowski ETF, Balkwill K. 2004. Regeneration by coppicing (resprouting) of Miombo (African savanna) trees in relation to land use. Forest Ecology and Management 189(1/3), 23-36.
Nyamapfene K.1991. Soils of Zimbabwe. Nehanda Publishers, Harare. pp 28-39.
Olano JM, Caballero I, Loidi J, Escudero A. 2005. Prediction of plant cover from seed bank analysis in a semi-arid plant community on gypsum. J. Veg. Sci. 16, 215–222.
Oldeland J, Dreber N, Wesuls D. 2010. Diversity measures in comparative range- land studies: application and advantages of species abundance distributions and diversity profiles. Dinteria 31, 50– 66.
Roberts HA. 1981. Seed banks in soils. Adv. Appl. Biol. 6, 1-55.
Salazar A. 2010. Seed Dynamics and Seedling Establishment of Woody Species in the Tropical Savannas of Central Brazil (Cerrado). Unpublished Dphil thesis, Paper 371. University of Miami, USA.
Scott K, Setterfield S, Douglas M, Anderson A. 2010. Seed banks confer resilience to savanna grass‐ layer plants during seasonal disturbance. Acta Oecol. 36, 202–210.
Solomon TB, Snyman HA, Smit GN. 2006. Soil seed bank characteristics in relation to land use systems and distance from water in a semi-arid rangeland of southern Ethiopia. S. Afr. J. Bot. 72, 263–271.
Stohlgren TJ, Falkner MB, Schell LD. 1995. A Modified-Whittaker nested vegetation sampling method. Vegetation Science 117,113-121.
Tekle K, Bekele T. 2000. The Role of Soil Seed Banks in the Rehabilitation of Degraded Hillslopes in Southern Wello, Ethiopia’. Biotropica 32(1), 23-32.
Tessema ZK, de Boer WF, Baars RMT, Prins HHT. 2012. Influence of Grazing on Soil Seed Banks Determines the Restoration Potential of Aboveground Vegetation in a Semi‐ arid Savanna of Ethiopia. Biotropica 44(2), 211–219.
Thompson K, Grime J. 1979. Seasonal variation in seed banks of herbaceous species in ten contrasting habitats. Journal of Ecology 67, 893–921.
Tsvuura Z, Nyamhanga E. 2002. A preliminary checklist of plants from the Mazowe Botanic Reserve, Zimbabwe. Kirkia 18 (1), 49-62.
Williams PR, Congdon RA, Grice AC, Clarke PJ. 2005. Germinable soil seed banks in a tropical savanna: seasonal dynamics and effects of fire. Austral Ecology 30, 79–90.
Wolda H. 1981. Similarity indices, sample size and diversity. Oecologia 50, 296–30.
Zida D, Sawadogo L, Tigabu M, Tiveau D, Odén PC. 2007. Dynamics of sapling population in savanna woodlands of Burkina Faso subjected to grazing, early fire and selective tree cutting for a decade. Forest Ecology and Management 243(1), 102-116.
Chapano C, Zimudzi C, Makaka CM, Mapaya RJ (2013), Species composition and spatial heterogeneity of the seed bank and vegetation in protected and disturbed Miombo Woodland at Christon bank, Zimbabwe; JBES, V3, N8, August, P133-149
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