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Ecological Research

, Volume 23, Issue 3, pp 565–572 | Cite as

Effects of different management regimes on aquatic macroinvertebrate diversity in Australian rice fields

  • A. L. Wilson
  • R. J. Watts
  • M. M. Stevens
Original Article

Abstract

The maintenance of invertebrate diversity within agricultural environments can enhance a number of agronomically important processes, such as nutrient cycling and biological pest control. However, few Australian studies have been undertaken which specifically address the effects of commercial management regimes on rice field biodiversity. In this study, we compared aquatic macroinvertebrate communities within Australian rice fields cultivated under three commercial management regimes: conventional-aerial (agrochemicals applied, aerially sown), conventional-drill (agrochemicals applied, directly drill-sown) and organic-drill (agrochemical-free, directly drill-sown). These comparisons were undertaken using a combination of community assessment approaches, including morphospecies richness, abundance, diversity and community composition. In general, greater biodiversity existed within macroinvertebrate communities that developed under organic management regimes than under conventional regimes (i.e., higher morphospecies richness and Shannon diversity). Although there were significant differences in several parameters across management regimes early in the rice-growing season, as the growing season progressed the invertebrate communities that developed in the different management regimes became more similar. Only community composition analyses showed significant differences late in the growing season, with functional differences across aquatic faunal assemblages suggested by increased predator abundance in communities sampled from the organic management regime. In order to improve biodiversity within these aquatic environments, management techniques need to be examined individually and the most disruptive processes identified. Alternative management procedures can then be developed that minimise biodiversity loss whilst still delivering required agronomic outcomes.

Keywords

Biodiversity Community composition Organic agriculture 

Notes

Acknowledgments

Financial support for this work has been provided by Charles Sturt University, the Cooperative Research Centre for Sustainable Rice Production and an Australian Postgraduate Award (A.W.).

References

  1. Altieri MA, Nicholls CI (1999) Biodiversity, ecosystem function, and insect pest management in agricultural systems. In: Collins WW, Qualset CO (eds) Biodiversity in agroecosystems. CRC Press, Boca Raton, FL, pp 69–84Google Scholar
  2. Briggs S, Jenkins K (1997) Guidelines for managing cropping on lakes in the Murray–Darling Basin. National Parks and Wildlife Service, Green Words, Canberra, ACT, AustraliaGoogle Scholar
  3. Burdett AS, Stevens MM, Macmillan DL (2001) Laboratory and field studies on the effect of molinate, clomazone and thiobencarb on nontarget aquatic invertebrates. Environ Toxicol Chem 20:2229–2236PubMedCrossRefGoogle Scholar
  4. Cohen JE, Schoenly K, Heong KL, Justo H, Arida G, Barrion AT, Litsinger JA (1994) A food web approach to evaluation of the effect of insecticide spraying on insect pest population dynamics in a Philippine irrigated rice ecosystem. J Appl Ecol 31:747–763CrossRefGoogle Scholar
  5. Elphick CS, Oring LW (1998) Winter management of Californian rice fields for waterbirds. J Appl Ecol 35:95–108CrossRefGoogle Scholar
  6. Hesler LS, Grigarick AA, Oraze MJ, Parlang AT (1993) Arthropod fauna of conventional and organic rice fields in California. J Econ Entomol 86:149–158Google Scholar
  7. Matson PA, Parton WJ, Power AG, Swift MJ (1997) Agricultural intensification and ecosystem properties. Science 277:504–509CrossRefGoogle Scholar
  8. McCaffery D, Taylor M, Clampett W, Lattimore M (2000) Weed management Part 1: management practices for weed control. In: Kealy L, Clampett W (eds) Production of quality rice in south eastern Australia. Rural Industries Research and Development Corporation, Barton, ACT, AustraliaGoogle Scholar
  9. Oliver I, Beattie AJ (1996) Invertebrate morphospecies as surrogates for species: a case study. Conserv Biol 10:99–109CrossRefGoogle Scholar
  10. O’Malley RE (1999) Agricultural wetland management for conservation goals. In: Batzer D, Rader R, Wissinger S (eds) Invertebrates in freshwater wetlands of North America. Wiley, New York, pp 857–885Google Scholar
  11. PRIMER-E Ltd (2001) PRIMER v5 for Windows, Standard Version. PRIMER-E Ltd, Plymouth, UKGoogle Scholar
  12. Richardson AJ, Taylor IR (2003) Are rice fields in southeastern Australia an adequate substitute for natural wetlands as foraging areas for egrets. Waterbirds 26:353–363CrossRefGoogle Scholar
  13. Roger PA (1996) Biology and management of the floodwater ecosystem in rice fields. International Rice Research Institute, Los Banos, PhilippinesGoogle Scholar
  14. Schoenly KG, Cohen JE, Heong KL, Arida GS, Barrion AT, Litsinger JA (1996) Quantifying the impact of insecticides on food web structure of rice-arthropod populations in a Philippine farmer’s irrigated field: a case study. In: Polis GA, Winemiller K (eds) Food webs: integration of patterns and dynamics. Chapman and Hall, London, pp 343–351Google Scholar
  15. Schoenly KG, Justo, Barrion AT, Harris MK, Botrell DG (1998) Analysis of invertebrate biodiversity in a Philippine farmer’s irrigated field. Environ Entomol 27:1125–1136Google Scholar
  16. Settle WH, Ariawan H, Astuti ET, Cahyana W (1996) Managing tropical rice pests through conservation of generalist enemies and alternative prey. Ecology 77:1975–1988CrossRefGoogle Scholar
  17. Simpson I, Roger PA, Oficial B, Grant IF (1994) Effects of fertiliser and pesticide management on floodwater ecology of a wetland rice field. II. Dynamics of microcrustaceans and dipteran larvae. Biol Fertil Soils 17:138–146CrossRefGoogle Scholar
  18. SPSS Inc. (1999) SPSS for Windows, Standard Version 14.0. SPSS Inc., Chicago, ILGoogle Scholar
  19. Swift MJ, Anderson JM (1994) Biodiversity and ecosystem function in agricultural systems. In: Schulze ED, Mooney HA (eds) Biodiversity and ecosystem function. Springer, Berlin, pp 15–41Google Scholar
  20. Tourenq C, Sadoul N, Beck N, Mesleard F, Martin J (2003) Effects of cropping practices on the use of rice fields by waterbirds in the Camargue, France. Agric Ecosyst Environ 95:543–549CrossRefGoogle Scholar
  21. Yamazaki M, Hamada Y, Kamimoto N, Momii T, Kimura M (2004) Composition and structure of aquatic organism communities in various water conditions of a paddy field. Ecol Res 19:645–653CrossRefGoogle Scholar
  22. Way MJ, Heong KL (1994) The role of biodiversity in the dynamics and management of insect pests of tropical irrigated rice—a review. Bull Entomol Res 84:567–587CrossRefGoogle Scholar
  23. Wilson AL, Ryder DS, Watts RJ, Stevens MM (2005) Stable isotope analysis of aquatic invertebrate communities in irrigated rice fields cultivated under different management regimes. Aquat Ecol 39:189–200CrossRefGoogle Scholar

Copyright information

© The Ecological Society of Japan 2007

Authors and Affiliations

  1. 1.Institute for Land, Water and Society, School of Environmental SciencesCharles Sturt UniversityWagga WaggaAustralia
  2. 2.NSW Department of Primary IndustriesYanco Agricultural InstituteYancoAustralia

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