Seasonal and spatial hydrological variability drives aquatic biodiversity in a flood-pulsed, sub-tropical wetland

Freshwater Biology

Volumn 57, Issue 6, 2012, Pages 1253-1265

  Davidson, Thomas A ^a,b   MacKay, Anson W ^b   Wolski, Piotr ^c   Mazebedi, Richard ^c   Murray Hudson, Mike ^c   Todd, Martin ^d  

^a AARHUS UNIVERSITY   (Denmark)

^b UNIVERSITY COLLEGE LONDON   (United Kingdom)

^c UNIVERSITY OF BOTSWANA   (Botswana)

^d UNIVERSITY OF SUSSEX   (United Kingdom)

Author keywords

Biodiversity; Diatoms; Flood pulsed wetlands; Macroinvertebrates; Okavango Delta

Indexed keywords

BACILLARIOPHYTA; INVERTEBRATA;

EID: 84860432890     PISSN: 00465070     EISSN: 13652427     Source Type: Journal    
DOI: 10.1111/j.1365-2427.2012.02795.x     Document Type: Article

References (58)

1. Battarbee R., Carvalho L., Jones V., Flower R., Cameron N., Bennion H. et al. (2001) Diatoms, tracking environmental change using lake sediments. In: Terrestrial, Algal and Siliceous Indicators. (Eds J. Smol, W. Last & H. Birks), pp. 155-202. Vol. 3. Kluwer Academic Publishers, Dordrecht.
2. Batzer D. (1996) Ecology of insect communities in nontidal wetlands. Annual Review of Entomology, 41, 75-100.
3. Bayley P. (1995) Understanding large river: floodplain ecosystems. BioScience, 45, 153-158.
4. Bonyongo M.C., Bredenkamp G.J. & Veenendaal E. (2000) Floodplain vegetation in the Nxaranga Lagoon Area, Okavango Delta, Botswana. South African Journal of Botany, 66, 15-21.
5. Breiman L., Friedman J.H., Olshen R.A. & Stone C.G. (1984) Classification and Regression Trees. Wadsworth International Group, Belmont, CA.
6. Bunn S., Davies P. & Winning M. (2003) Sources of organic carbon supporting the food web of an arid zone floodplain river. Freshwater Biology, 48, 619-635.
7. Cardinale B., Palmer M., Ives A. & Brooks S. (2005) Diversity-productivity relationships in streams vary as a function of the natural disturbance regime. Ecology, 86, 716-726.
8. Casanova M.T. & Brock M.A. (2000) How do depth, duration and frequency of flooding influence the establishment of wetland plant communities? Plant Ecology, 147, 237-250.
9. Chase J.M. & Leibold M.A. (2002) Spatial scale dictates the productivity biodiversity relationship. Nature, 416, 427.
10. Connell J. (1978) Diversity in tropical rain forests and coral reefs. Science, 199, 1302-1310.
11. Dallas H. & Mosepele B. (2007) A preliminary survey and analysis of the spatial distribution of aquatic invertebrates in the Okavango Delta, Botswana. African Journal of Aquatic Science, 32, 1-11.
12. Day J.A., Harrison A.D. & De Moor I.J. (2003) Guides to the Freshwater Invertebrates of Southern Africa, Vol. 9 Diptera. In: WRC Report No. 916. Water Research Commission, South Africa.
13. Day J.A., Stewart B.A., De Moor I.J. & Louw A.E. (1999) Guides to the freshwater Invertebrates of Southern Africa, Crustacea 1: Notostraca, Anostraca, Conchostraca and Cladocera. In: WRC report No.TT121/00. Water Research Commission, South Africa.
14. Day J.A., Stewart B.A., De Moor I.J. & Louw A.E. (2001) Guides to the freshwater Invertebrates of Southern Africa, Crustacea III, Bathynellacea, Amphipoda, Isopoda, Spelaeogriphacea, Tanaidacea and Decapoda. In: WRC report No. TT141/01. Water Research Commission South Africa.
15. De Moor I.J., Day J.A. & De Moor F.C. (2003) Guides to the freshwater Invertebrates of Southern Africa, Vol 7: Insecta I, Ephemeroptera, Odonata and Plecoptera. In: WRC Report No. TT03/207. Water Research Commission, South Africa.
16. De'ath G. & Fabricius K. (2000) Classification and regression trees: a powerful yet simple technique for ecological data analysis. Ecology, 81, 3178-3192.
17. Douglas M.M., Bunn S.E. & Davies P.M. (2005) River and wetland food webs in Australia's wet-dry tropics: general principles and implications for management. Marine and Freshwater Research, 56, 329-342.
18. Dufréne M. & Legendre P. (1997) Species assemblages and indicator species: the need for a flexible asymmetrical approach. Ecological Monographs, 67, 345-366.
19. Hamilton S., Sippel S. & Melack J. (2002) Comparison of inundation patterns among major South American floodplains. Journal of Geophysical Reseach-Atmosphere, 107, 1-14.
20. Hanson M. & Riggs M. (1995) Potential effects of fish predation on Wetland invertebrates: a comparison of wetlands with and without fathead minnows. Wetlands, 15, 167-175.
21. Hillebrand H., Bennett D. & Cadotte M. (2008) Consequences of dominance: a review of evenness effects on local and regional ecosystem processes. Ecology, 89, 1510-1520.
22. Høberg P., Lindholm M., Ramberg L. & Hessen D. (2002) Aquatic food web dynamics on a floodplain in the Okavango delta, Botswana. Hydrobiologia, 470, 23-30.
23. Hughes D., Kingston D. & Todd M. (2010) Uncertainty in water resources availability in the Okavango River Basin as a result of climate change. Hydrology and Earth Systems Science Discussions, 7, 5737-5768.
24. IPCC. (2007). Summary for policy makers. In: Climate Change 2007: Synthesis Report: Contribution of Working Groups I, II, and III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (Eds R.K. Pachauri & A. Reisinger), pp. 1-52, Cambridge University Press, Cambridge.
25. Jolliffe I. (1986) Principal Component Analysis. Springer, Berlin.
26. Junk W., Bayley P. & Sparks R. (1989) The flood pulse concept in river-floodplain systems. Canadian Special Publication of Fisheries and Aquatic Sciences, 106, 110-127.
27. Junk W., Brown M., Campbell I., Finlayson M., Gopal B., Ramberg L. et al. (2006) The comparative biodiversity of seven globally important wetlands: a synthesis. Aquatic Sciences, 68, 400-414.
28. Kadmon R. & Benjamini Y. (2006) Effects of productivity and disturbance on species richness: a neutral model. American Naturalist, 167, 939-946.
29. Keddy P.A., Fraser L.H., Solomeshch A.I., Junk W.J., Campbell D.R., Arroyo M.T.K. et al. (2009) Wet and wonderful: the world's largest wetlands are conservation priorities. BioScience, 59, 39-51.
30. Kobayashi T., Ryder D.S., Gordon G., Shannon I., Ingleton T., Carpenter M. et al. (2009) Short-term response of nutrients, carbon and planktonic microbial communities to floodplain wetland inundation. Aquatic Ecology, 43, 843-858.
31. Krammer K. & Lange-Bertalot H. (1999) Bacillariophyceae. 2 Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. Akademischer Verlag Heidelberg, Berlin.
32. Lange-Bertalot H. (2001) Diatoms of Europe, Volume 2: Navicula sensu stricto. 10 genera separated from Navicula sensu lato Frustulia, A.R.G. Gantner Verlag, Berlin.
33. Legendre P. & Gallagher E. (2001) Ecologically meaningful transformations for ordination of species data. Oecologia, 129, 271-280.
34. Legendre P. & Legendre L. (1998) Numerical Ecology. Elsevier, Netherlands.
35. Lindholm M., Hessen D., Mosepele K. & Wolski P. (2007) Food webs and energy fluxes on a seasonal floodplain: the influence of flood size. Wetlands, 27, 775-784.
36. Mackay A.W., Davidson T., Wolski P., Mazebedi R., Masamba W.R.L., Huntsman-Mapila P. et al. (2011) Spatial and seasonal variability in surface water chemistry in the Okavango Delta, Botswana: a multivariate approach. Wetlands, 31, 815-829.
37. Mackay A.W., Davidson T., Wolski P., Woodward S., Mazebedi R., Masamba W.R.L. et al. (2012) Diatom sensitivity to hydrological and nutrient variability. Ecohydrology, doi:.
38. Mccarthy J., Gumbricht T., Mccarthy T., Frost P., Wessels K. & Seidel F. (2003) Flooding patterns of the Okavango Wetland in Botswana between 1972 and 2000. Ambio, 32, 453-457.
39. Milzow C., Kgotlhang L., Bauer-Gottwein P., Meier P. & Kinzelbach W. (2009) Regional review: the hydrology of the Okavango Delta, Botswana-processes, data and modelling. Hydrogeology Journal, 17, 1297-1328.
40. Mitsch W., Nahlik A., Wolski P., Bernal B., Zhang L. & Ramberg L. (2010) Tropical wetlands: seasonal hydrologic pulsing, carbon sequestration, and methane emissions. Wetlands Ecology and Management, 18, 573-586.
41. Mosepele K., Moyle P.B., Merron G.S., Purkey D.R. & Mosepele B. (2009) Fish, floods, and ecosystem engineers: aquatic conservation in the Okavango Delta, Botswana. BioScience, 59, 53-64.
42. Murray-Hudson M., Wolski P. & Ringrose S. (2006) Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana. Journal of Hydrology, 331, 73-84.
43. Passy S. (2007) Diatom ecological guilds display distinct and predictable behavior along nutrient and disturbance gradients in running waters. Aquatic Botany, 86, 171-178.
44. Pinheiro J.C., Bates D., Debroy S. & Sarkar D. (2011) nlme: linear and nonlinear mixed effects models. In: (R package version 3.1-101).
45. R Core Development Team. (2007) R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria.
46. Ramberg L., Hancock P., Lindholm M., Meyer T., Ringrose S., Sliva J. et al. (2006) Species diversity of the Okavango Delta, Botswana. Aquatic Sciences, 68, 310-337.
47. Ramberg L., Lindholm M., Hessen D.O., Murray-Hudson M., Bonyongo C., Heinl M. et al. (2010) Aquatic ecosystem responses to fire and flood size in the Okavango Delta: observations from the seasonal floodplains. Wetlands Ecology and Management, 18, 587-595.
48. Tarr T.L., Baber M.J. & Babbitt K.J. (2005) Macroinvertebrate community structure across a wetland hydroperiod gradient in southern New Hampshire, USA. Wetlands Ecology and Management, 13, 321-334.
49. Thomaz S.M., Bini L.M. & Bozelli R.L. (2006) Floods increase similarity among aquatic habitats in river-floodplain systems. Hydrobiologia, 579, 1-13.
50. Tockner K., Malard F. & Ward J. (2000) An extension of the flood pulse concept. Hydrolological Processes, 14, 2861-2883.
51. Van Dam H. & Mertens A. (1994) A coded checklist and ecological indicator values of freshwater diatoms from the Netherlands. Aquatic Ecology, 28, 117-133.
52. Waide R., Willig M., Steiner C., Mittlebach G., Gouch L., Dodson S. et al. (1999) The relationship between productivity and species richness. Annual Review of Ecology and Systematics, 30, 257-300.
53. Wissinger S. (1999) Ecology of wetland invertebrates: Synthesis and application for conservation management. In: Invertebrates in Freshwater Wetlands of North America, ecology and management. (Eds D.P. Batzer, R.B. Rader & S.A. Wissinger), pp. 43. John Wiley & Sons, New York.
54. Wolski P. & Murray-Hudson M. (2006) Flooding dynamics in a large low-gradient alluvial fan, the Okavango Delta, Botswana, from analysis and interpretation of a 30-year hydrometric record. Hydrology and Earth System Sciences, 10, 127-137.
55. Wolski P., Savenije H., Murray-Hudson M. & Gumbricht T. (2006) Modelling of the flooding in the Okavango Delta, Botswana, using a hybrid reservoir-GIS model. Journal of Hydrology, 331, 58-72.
56. Worm B. & Duffy J. (2003) Biodiversity, productivity and stability in real food webs. Trends in Ecology & Evolution, 18, 628-632.
57. Yee D.A. & Juliano S.A. (2007) Abundance matters: a field experiment testing the more individuals hypothesis for richness-productivity relationships. Oecologia, 153, 153-162.
58. Zuur A.F., Ieno E.N. & Elphick C.S. (2010) A protocol for data exploration to avoid common statistical problems. Methods in Ecology and Evolution, 1, 3-14.