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Physico-chemical impacts of terrestrial alien vegetation on temporary wetlands in a sclerophyllous Sand fynbos ecosystem

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Abstract

Temporary depression wetlands form a characteristic feature of the wet-season landscape in the south-western Cape region of South Africa, yet they remain largely unstudied. We hypothesized that the loss of sclerophyllous Sand fynbos habitat around these temporary wetlands causes in-wetland physico-chemical changes. We expected to observe a decrease in the concentration of humic substances in wetlands and a corresponding rise in surface water pH as fynbos cover decreases around wetlands, in this case owing to alien vegetation invasion. A set of 12 differentially invaded temporary depression wetlands within a Sand fynbos ecosystem in Cape Town were repeatedly sampled during the 2009 wet season. Multivariate gradient analysis techniques revealed associations between fynbos cover bordering wetlands and various physico-chemical and biotope constituents within wetlands. Univariate linear regression models reported strong and temporally consistent negative relationships between terrestrial fynbos vegetation cover and wetland pH and positive relationships with humic content. Results indicate that replacement of Sand fynbos with alien vegetation causes a reduction of humic input to wetlands, which in turn has knock-on effects on other wetland environmental constituents such as pH. These findings are expected to be applicable to any wetland where surrounding humic-rich sclerophyllous vegetation is replaced by a non-sclerophyllous agent.

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References

  • Anderson, M. J., R. N. Gorley & K. R. Clarke, 2008. PERMANOVA+ for PRIMER: Guide to Software and Statistical Methods. PRIMER-E, Plymouth, UK.

    Google Scholar 

  • Angeler, D. G. & J. M. Moreno, 2007. Zooplankton community resilience after press-type anthropogenic stress in temporary ponds. Ecological Applications 17: 1105–1115.

    Article  PubMed  Google Scholar 

  • Batzer, D. P., R. Cooper & S. A. Wissinger, 2006. Wetland animal ecology. In Batzer, D. P. & R. R. Sharitz (eds), Ecology of Freshwater and Estuarine Wetlands. University of California Press, Berkeley, USA: 242–284.

    Google Scholar 

  • Beckett, D. C., T. P. Aartila & A. C. Miller, 1992. Contrasts in density of benthic invertebrates between macrophyte beds and open littoral patches in Eau Galle Lake, Wisconsin. American Midland Naturalist 127: 77–90.

    Article  Google Scholar 

  • Biggs, B. J. F. & C. Kilroy, 2000. Stream Periphyton Monitoring Manual. NIWA, Christchurch, New Zealand.

    Google Scholar 

  • Brooks, R. T., S. D. Miller & J. Newsted, 2002. The impact of urbanization on water and sediment chemistry of ephemeral forest pools. Journal of Freshwater Ecology 17: 485–488.

    Article  CAS  Google Scholar 

  • Cardinale, B. J., V. J. Brady & T. M. Burton, 1998. Changes in the abundance and diversity of coastal wetland fauna from the open water/macrophyte edge towards shore. Wetlands Ecology and Management 6: 59–68.

    Article  Google Scholar 

  • Carpenter, S. R., N. F. Caraco, D. L. Correll, R. W. Howarth, A. N. Sharpley & V. H. Smith, 1998. Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecological Applications 8: 559–568.

    Article  Google Scholar 

  • Carrino-Kyker, S. R. & A. K. Swanson, 2007. Seasonal physicochemical characteristics of thirty Northern Ohio temporary pools along gradients of GIS-delineated human land-use. Wetlands 27: 749–760.

    Article  Google Scholar 

  • Chamier, J., K. Schachtschneider, D. C. le Maitre, P. J. Ashton & B. W. van Wilgen, 2012. Impacts of invasive alien plants on water quality, with particular emphasis on South Africa. Water SA 38: 345–356.

    Article  Google Scholar 

  • Clarke, K. R. & R. N. Gorley, 2006. PRIMER v6: User Manual/Tutorial PRIMER-E. Plymouth Marine Laboratory, Plymouth, UK.

    Google Scholar 

  • Clarke, K. R. & R. M. Warwick, 2001. Change in Marine Communities: An Approach to Statistical Analysis and Interpretation PRIMER-E, 2nd ed. Plymouth Marine Laboratory, Plymouth, UK.

    Google Scholar 

  • Comín, F. A. & W. D. Williams, 1994. Parched continents: our common future? In Margalef, R. (ed.), Limnology Now: A Paradigm of Planetary Problems. Elsevier, Amsterdam: 473–527.

    Google Scholar 

  • De Roeck, E. R., 2008. Status and ecology of temporary wetlands in the Western Cape, South Africa. PhD Thesis, Laboratory of Aquatic Ecology and Evolutionary Biology, Catholic University of Leuven, Belgium.

  • De Roeck, E. R., B. J. Vanschoenwinkel, J. A. Day, Y. Xu, L. Raitt & L. Brendonc, 2007. Conservation status of large branchiopods in the Western Cape, South Africa. Wetlands 27: 162–173.

    Article  Google Scholar 

  • Dodds, W. K. & D. A. Gudder, 1992. The ecology of cladophora. Journal of Phycology 28: 415–427.

    Article  Google Scholar 

  • Dye, P. & C. Jarmain, 2004. Water use by black wattle (Acacia mearnsii): implications for the link between removal of invading trees and catchment streamflow response. South African Journal of Science 100: 40–44.

    Google Scholar 

  • Enright, W. D., 2000. The effect of terrestrial invasive alien plants on water scarcity in South Africa. Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere 25: 237–242.

    Article  Google Scholar 

  • Ewart-Smith, J., D. Ollis, J. A. Day & H. Malan, 2006. National Wetland Inventory: Development of a Wetland Classification System for South Africa. WRC Report No. K8/652. Water Research Commission (WRC) and the South African National Biodiversity Institute (SANBI), Pretoria.

  • Gaertner, M., D. M. Richardson & S. D. J. Privett, 2011. Effects of alien plants on ecosystem structure and functioning and implications for restoration: insights from three degraded sites in South African fynbos. Environmental Management 48: 57–69.

    Article  PubMed  Google Scholar 

  • Gardiner, A. J. C., 1988. A study on the water chemistry and plankton in blackwater lakelets of the south-western Cape. PhD Thesis, Zoology Department, University of Cape Town.

  • Gehrke, B., A. Tshiila, M. Muasya, M. Beukes & F. Barros, 2011. Sedge diversity at Youngsfield Military Base. Veld & Flora 97: 32–33.

    Google Scholar 

  • Görgens, A. H. M. & B. W. van Wilgen, 2004. Invasive alien plants and water resources: an assessment of current understanding, predictive ability and research challenges. South African Journal of Science 100: 27–34.

    Google Scholar 

  • Harrison, A. D., 1962. Hydrobiological studies on alkaline and acid stillwaters in the Western Cape Province. Transactions of the Royal Society of South Africa 36: 213–235.

    Article  Google Scholar 

  • Heijnis, C., A. T. Lombard, R. M. Cowling & P. G. Desmet, 1999. Picking up pieces: a biosphere reserve for a fragmented landscape – the Coastal Lowlands of the Western Cape, South Africa. Biodiversity and Conservation 8: 471–496.

    Article  Google Scholar 

  • Hitchcock, A., 2006. Restoration conservation at Kirstenbosch. Veld & Flora 92: 40–44.

    Google Scholar 

  • Hitchcock, A., C. Cowell & M. Stauch, 2008. Weaving the golden circle. Veld & Flora 94: 31–35.

    Google Scholar 

  • Holm, S., 1979. A simple sequentially rejective multiple test procedure. Scandinavian Journal of Statistics 6: 65–70.

    Google Scholar 

  • Jackson, F. S., W. C. McNabb, T. N. Barry, Y. L. Foo & J. S. Peters, 1996. The condensed tannin content of a range of subtropical and temperate forages and the reactivity of condensed tannin with Ribulose-1,5-bis-phosphate Carboxylase (Rubisco) protein. Journal of the Science of Food and Agriculture 72: 483–492.

    Article  CAS  Google Scholar 

  • Jovanovic, N. Z., S. Israel, G. Tredoux, L. Soltau, D. Le Maitre, F. Rusinga, A. Rozanov & N. van der Merwe, 2009. Nitrogen dynamics in land cleared of alien vegetation (Acacia saligna) and impacts on groundwater at Riverlands Nature Reserve (Western Cape, South Africa). Water SA 35: 37–44.

    CAS  Google Scholar 

  • King, J. M., J. A. Day & D. W. van der Zel, 1979. Hydrology and hydrobiology. In Day, J., W. R. Siegfried, G. N. Louw & M. L. Jarman (eds), Fynbos Ecology: A Preliminary Synthesis. South African National Scientific Programmes, vol. 40. Council for Scientific and Industrial Research, Pretoria: 173 pp.

  • Krebs, G. L., D. M. Howard & K. Dods, 2007. The effects of feeding Acacia saligna on feed intake, nitrogen balance and rumen metabolism in sheep. Asian-Australasian Journal of Animal Sciences 20: 1367–1373.

    CAS  Google Scholar 

  • Kumara Mahipala, M. B. P., G. L. Krebs, P. McCafferty & L. H. P. Gunaratne, 2009. Chemical composition, biological effects of tannin and in vitro nutritive value of selected browse species grown in the West Australian Mediterranean environment. Animal Feed Science and Technology 153: 203–215.

    Article  CAS  Google Scholar 

  • Le Maitre, D. C., D. B. Versfeld & R. A. Chapman, 2000. The impact of invading alien plants on surface water resources in South Africa: a preliminary assessment. Water SA 26: 397–408.

    Google Scholar 

  • Leavitt, P. R., C. S. Brock, C. Ebel & A. Patoine, 2006. Landscape-scale effects of urban nitrogen on a chain of freshwater lakes in central North America. Limnology and Oceanography 51: 2262–2277.

    Article  CAS  Google Scholar 

  • Legendre, P. & M. J. Anderson, 1999. Distance-based redundancy analysis: testing multi-species responses in multi-factorial ecological experiments. Ecological Monographs 69: 1–24.

    Article  Google Scholar 

  • Lepš, J. & P. Šmilauer, 2003. Multivariate Analysis of Ecological Data Using CANOCO. Cambridge University Press, Cambridge.

    Google Scholar 

  • Magnusson, A. K. & D. D. Williams, 2006. The roles of natural temporal and spatial variation versus biotic influences in shaping the physicochemical environment of intermittent ponds: a case study. Archiv für Hydrobiologie 165: 537–556.

    Article  CAS  Google Scholar 

  • Makkar, H. P. S., N. K. Borowy, K. Becker & A. Degen, 1995. Some problems in fiber determination of a tannin-rich forage (Acacia saligna leaves) and their implications in in vivo studies. Animal Feed Science and Technology 55: 67–76.

    Article  Google Scholar 

  • Marais, J. P., 2001. Factors affecting the nutritive value of kikuyu grass (Pennisetum clandestinum)—a review. Tropical Grasslands 35: 65–84.

    Google Scholar 

  • McArdle, B. H. & M. J. Anderson, 2001. Fitting multivariate models to community data: a comment on distance-based redundancy analysis. Ecology 82: 290–297.

    Article  Google Scholar 

  • Midgley, J. & G. Schafer, 1992. Correlates of water colour of streams rising from Southern Cape catchments vegetated by fynbos and/or forest. Water SA 18: 93–100.

    CAS  Google Scholar 

  • Milton, S. J., 2004. Grasses as invasive alien plants in South Africa. South African Journal of Science 100: 69–75.

    Google Scholar 

  • Mlambo, M. C., M. S. Bird, C. C. Reed & J. A. Day, 2011. Diversity patterns of temporary wetland macroinvertebrate assemblages in the south-western Cape, South Africa. African Journal of Aquatic Science 36: 299–308.

    Article  Google Scholar 

  • Muasya, A. M. & D. A. Simpson, 2002. A monograph of the Genus Isolepis R. Br. (Cyperaceae). Kew Bulletin 57: 257–362.

    Article  Google Scholar 

  • Musil, C. F., 1993. Effect of invasive Australian Acacias on the regeneration, growth and nutrient chemistry of South African lowland fynbos. Journal of Applied Ecology 30: 361–372.

    Article  Google Scholar 

  • Musil, C. F., S. J. Milton & G. W. Davis, 2005. The threat of alien invasive grasses to lowland Cape floral diversity: an empirical appraisal of the effectiveness of practical control strategies. South African Journal of Science 101: 337–344.

    Google Scholar 

  • Oertli, B., J. Biggs, R. Céréghino, P. Grillas, P. Joly & J. B. Lachavanne, 2005. Conservation and monitoring of pond biodiversity: introduction. Aquatic Conservation: Marine and Freshwater Ecosystems 15: 535–540.

    Article  Google Scholar 

  • Pham, S. V., P. R. Leavitt, S. McGowan & P. Peres-Neto, 2008. Spatial variability of climate and land-use effects on lakes of the northern Great Plains. Limnology and Oceanography 53: 728–742.

    Article  Google Scholar 

  • Prescott, G. W., 1951. Algae of the West Great Lakes Region. Cranbrook Press

  • Raubenheimer, C. M. & J. A. Day, 1991. In vitro leaching of two sclerophyllous fynbos plants. Hydrobiologia 224: 167–174.

    Article  CAS  Google Scholar 

  • Rebelo, A. G., C. Coucher, N. Helme, L. Mucina & M. C. Rutherford, 2006. Fynbos biome. In Mucina, L. & M. C. Rutherford (eds), The Vegetation of South Africa, Lesotho and Swaziland. South African National Biodiversity Institute, Pretoria: 53–219.

    Google Scholar 

  • Rhazi, L., P. Grillas, A. Mounirou Toure & L. Tan Ham, 2001. Impact of land use and activities on water, sediment and vegetation of temporary pools in Morocco. Life Sciences 324: 165–177.

    PubMed  CAS  Google Scholar 

  • Richardson, D. M. & B. W. van Wilgen, 2004. Invasive alien plants in South Africa: how well do we understand the ecological impacts? South African Journal of Science 100: 45–52.

    Google Scholar 

  • Rouget, M., D. M. Richardson, R. M. Cowling, J. W. Lloyd & A. T. Lombard, 2003. Current patterns of habitat transformation and future threats to biodiversity in terrestrial ecosystems of the Cape Floristic Region, South Africa. Biological Conservation 112: 63–85.

    Article  Google Scholar 

  • Sartory, D. P. & J. U. Grobbelaar, 1984. Extraction of chlorophyll a from freshwater phytoplankton for spectrophotometric analysis. Hydrobiologia 114: 177–187.

    Article  CAS  Google Scholar 

  • Semlitsch, R. D. & J. R. Bodie, 1998. Are small, isolated wetlands expendable? Conservation Biology 12: 1129–1133.

    Article  Google Scholar 

  • Ter Braak, C. J. F. & P. Šmilauer, 2002. CANOCO for Windows Version 4.5. Biometrics – Plant Research International, Wageningen.

  • Thomas, J. D., 1997. The role of dissolved organic matter, particularly free amino acids and humic substances, in freshwater ecosystems. Freshwater Biology 38: 1–36.

    Article  CAS  Google Scholar 

  • Turner, R., 2006. The Kenilworth Atlas: a brief summary of pre- and post-burn field study at the Kenilworth Racecourse, Cape Town. Veld & Flora 92: 140–145.

    Google Scholar 

  • van Ginkel, C. E., R. P. Glen, K. D. Gordon-Gray, C. J. Cilliers, M. Muasya & P. P. van Deventer, 2011. Easy identification of some South African Wetland Plants (Grasses, Restios, Sedges, Rushes, Bulrushes, Eriocaulons and Yellow-eyed grasses). WRC Report No TT 479/10. Water Research Commission, Pretoria.

  • Whitton, B. A., 1970. Biology of Cladophora in freshwaters. Water Research 4: 457–476.

    Article  Google Scholar 

  • Williams, D. D., 2006. The Biology of Temporary Waters. Oxford University Press, Oxford.

    Google Scholar 

  • Williams, P., J. Biggs, G. Fox, P. Nicolet & M. Whitfield, 2001. History, origins and importance of temporary ponds. Freshwater Forum 17: 7–15.

    Google Scholar 

  • Witkowski, E. T. F., 1991. Effects of invasive alien Acacias on nutrient cycling in the coastal lowlands of the Cape Fynbos. Journal of Applied Ecology 28: 1–15.

    Article  Google Scholar 

  • Witkowski, E. T. F. & D. T. Mitchell, 1987. Variations in soil phosphorus in the fynbos biome, South Africa. Journal of Ecology 75: 1159–1171.

    Article  Google Scholar 

  • Yelenik, S. G., W. D. Stock & D. M. Richardson, 2004. Ecosystem level impacts of invasive Acacia saligna in the South African Fynbos. Restoration Ecology 12: 44–51.

    Article  Google Scholar 

  • Zacharias, I. & M. Zamparas, 2010. Mediterranean temporary ponds: a disappearing ecosystem. Biodiversity and Conservation 19: 3827–3834.

    Article  Google Scholar 

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Acknowledgments

For fieldwork assistance we wish to thank Jeremy Shelton. M. Bird would like to thank the Water Research Commission and the National Research Foundation for PhD bursaries which funded this work.

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  1. Freshwater Research, Department of Biological Sciences, University of Cape Town, Private Bag Rondebosch, Cape Town, South Africa

    Matthew S. Bird, Jenny A. Day & Alanna J. Rebelo

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  1. Matthew S. Bird
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Correspondence to Matthew S. Bird.

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Bird, M.S., Day, J.A. & Rebelo, A.J. Physico-chemical impacts of terrestrial alien vegetation on temporary wetlands in a sclerophyllous Sand fynbos ecosystem. Hydrobiologia 711, 115–128 (2013). https://doi.org/10.1007/s10750-013-1470-4

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