A preliminary survey and analysis of the spatial distribution of aquatic invertebrates in the Okavango Delta, Botswana

African Journal of Aquatic Science

Volumn 32, Issue 1, 2007, Pages 1-11

  Dallas, Helen F ^a   Mosepele, Belda ^b,c  

^a UNIVERSITY OF CAPE TOWN   (South Africa)

^b Conservation International Botswana ^*  (Botswana)

^c UNIVERSITY OF BOTSWANA   (Botswana)

Author keywords

Biodiversity; Conservation; Freshwater habitats; Habitat heterogeneity; Species assemblages

Indexed keywords

ANNELIDA; COLEOPTERA; CRUSTACEA; DIPTERA; EPHEMEROPTERA; HEMIPTERA; HIRUDINEA; HYDRACARINA; INVERTEBRATA; LEPIDOPTERA; MOLLUSCA; ODONATA; OLIGOCHAETA (METAZOA); TRICHOPTERA;

EID: 36348963720     PISSN: 16085914     EISSN: None     Source Type: Journal    
DOI: 10.2989/AJAS.2007.32.1.1.138     Document Type: Article

References (37)

1. ALONSO LE and NORDIN L (eds) (2003) A rapid biological assessment of the aquatic ecosystems of the Okavango Delta, Botswana: high water survey. RAP Bulletin of Biological Assessment 27. Conservation International, Washington, United States.
2. APPLETON CC (1979) The Unionacea (Mollusca: Lamellibranchiata) of south-central Africa. Annals of the South African Museum 77: 151-174.
3. APPLETON CC (2002) Mollusca. In: Day JA and de Moor IJ (eds) Guide to the Freshwater Invertebrates of Southern Africa, Volume 6: Arachnida and Mollusca. Water Research Commission, Pretoria, pp 42-125.
4. APPLETON CC, CURTIS BA, ALONSO LE and KIPPING J (2003) Freshwater invertebrates of the Okavango Delta, Botswana. In: Alonso LE and Nordin L (eds) A Rapid Biological Assessment of the Aquatic Ecosystems of the Okavango Delta, Botswana: High Water Survey. RAP Bulletin of Biological Assessment 27. Conservation International, Washington, DC, pp 58-68.
5. ASHTON PJ (2000) Potential environmental impacts associated with the proposed abstraction of water from the Okavango River in Namibia. African Journal of Aquatic Science 25: 175-182.
6. ASHTON PJ and NEAL M (2002) An overview of the key strategic issues facing the Okavango River basin. In: Turton AR, Ashton PJ and Cloete TE (eds) Proceedings of the Green Cross International Okavango Pilot Project Symposium, Maun, Botswana, 9-12 September 2002.
7. ASHTON PJ, MASUNDIRE H, HART R, PRINCE-NENGU J, BOTSHELO O, LEKHURU M, MEHLOMAKULU M and TYLOL I (2003a) Water quality of the Okavango Delta, Botswana. In: Alonso LE and Nordin L (eds) A Rapid Biological Assessment of the Aquatic Ecosystems of the Okavango Delta, Botswana: High-water Survey. RAP Bulletin of Biological Assessment 27. Conservation International, Washington, DC, pp 38-53.
8. ASHTON PJ, NORDIN L and ALONSA L (2003b) Introduction to the Okavango Delta and the AquaRAP Expedition. In: Alonso LE and Nordin L (eds) A Rapid Biological Assessment of the Aquatic Ecosystems of the Okavango Delta, Botswana: High-water Survey. RAP Bulletin of Biological Assessment 27. Conservation International, Washington, DC, pp 29-37.
9. BILARDO A and ROCCHI S (1987) Contributo alla conoscenza degli Haliplidae e dei Dytiscidae del Botswana. Atti Societa Italiana di Scienze Naturali. Museo Civico di Storia Naturale di Milano 128: 15-106.
10. BONADA N, DALLAS HF, RIERADEVALL M, PRAT N and DAY JA (2006) A comparison of Rapid Bioassessment Protocols used to assess biological quality in two Mediterranean regions, Spain and South Africa. Journal of the North American Benthological Society 25: 487-500.
11. BROWN DS, CURTIS BA, BETHUNE S and APPLETON CC (1992) Freshwater snails of East Caprivi and the lower Okavango River basin in Namibia and Botswana. Hydrobiologia 246: 9-40.
12. CHADD R and EXTENCE C (2004) The conservation of freshwater macroinvertebrate populations: a community-based classification scheme. Aquatic Conservation of Marine and Freshwater Ecosystems 14: 597-624.
13. CHUTTER FM (1998) Research on the rapid biological assessment of water quality impacts in streams and rivers. WRC Report 422/1/98. Water Research Commission, Pretoria, South Africa.
14. CLARKE KR and WARWICK RM (1994) Changes in marine communities: an approach to statistical analysis and interpretation. Natural Environmental Research Council, United Kingdom.
15. COLLIER KJ (1995) Environmental factors affecting the taxonomic composition of aquatic macroinvertebrate communities in lowland waterways of Northland, New Zealand. New Zealand Journal of Marine and Freshwater Research 29: 453-465.
16. CURTIS BA (1997) Freshwater molluscs and water-borne diseases in the Okavango River and Okavango Delta. In: Water Transfer Consultants (eds) Feasibility Study on the Okavango River to Grootfontein Link of the Eastern National Water Carrier. Vol. 4, Part 3, Report No. 13/2/2/2. Appendix F. Department of Water Affairs, Ministry of Agriculture, Water and Rural Development, Namibia.
17. CURTIS BA and APPLETON CC (1987) The molluscs of the Okavango River in South West Africa/Namibia. Journal of the South West African Scientific Society 40/41: 47-53.
18. DALLAS HF (1997) A preliminary evaluation of aspects of SASS (South African Scoring System) for the rapid bioassessment of water quality in rivers, with particular reference to the incorporation of SASS in a national biomonitoring programme. Southern African Journal of Aquatic Sciences 23: 79-94.
19. DALLAS HF (2002) Spatial and Temporal Heterogeneity in Lotic Systems: Implications for Defining Reference Conditions for Riverine Invertebrates. PhD Thesis, Department of Zoology, University of Cape Town.
20. DALLAS HF (2007) The influence of biotope availability on macroinvertebrate assemblages in South African rivers: implications for aquatic bioassessment. Freshwater Biology 52: 370-380.
21. DALLAS HF and MOSEPELE B (in press) Aquatic invertebrates of the Okavango Delta. In: Mosepele K (ed) A Rapid Biological Assessment of the Aquatic Ecosystems of the Okavango Delta, Botswana: Low-water Survey. Harry Oppenheimer Okavango Research Centre, University of Botswana, Botswana.
22. ELLERY WN and MCCARTHY TS (1994) Principles for the sustainable utilisation of the Okavango Delta ecosystem, Botswana. Biological Conservation 70: 159-168.
23. ELLERY WN, ELLERY K and MCCARTHY TS (1993) Plant distribution on islands of the Okavango Delta: determinants and feedback interactions. African Journal of Ecology 31: 118-134.
24. GRONBERG G (1996) Scaled chrysophytes from the Okavango Delta, Botswana, Africa. Beihef zur Nova Heiwigia 114: 91-108.
25. GRONBERG G, GISKE A, MARTINS E, PRINCE-NENGU J and STENSTROM I-M (1995) Hydrobiological studies of the Okavango Delta and the Kwando/Linyanti/Chobe River, Botswana: surface water quality analysis. Botswana Notes and Records 27: 151-226.
26. HART RC (1997) A limnological profile of the upper Okavango River at low-water level. Southern African Journal of Aquatic Sciences 23: 21-33.
27. MASUNDIRE HM, RINGRONSE S, SEFE FTK and VAN DER POST C (1998) Botswana wetlands policy and strategy: inventory of wetlands of Botswana. National Conservation Strategy (Coordinating) Agency, Ministry of Local Government, Lands and Housing, Botswana.
28. MCCARTHY TS and ELLERY WN (1998) The Okavango Delta. Transactions of the Royal Society of South Africa 53: 157-182.
29. MCCARTHY TS, BLOEM A and LARKING PA (1998) Observations on the hydrology and geohydrology of the Okavango Delta. South African Journal of Geology 10: 117.
30. MCCARTHY TS, COOPER GRJ, TYSON PD and ELLERY WN (2000) Seasonal flooding in the Okavango Delta, Botswana - recent history and future prospects. South African Journal of Science 96: 25-33.
31. MERRON GS (1993) The diversity, distribution and abundance of the fishes in the Moremi Wildlife Reserve, Okavango Delta, Botswana. South African Journal of Wildlife Research 23: 115-122.
32. MURRAY-HUDSON M and HEINL M (in press) A rapid biological assessment of the aquatic ecosystems of the Okavango Delta, Botswana: low-water survey. Harry Oppenheimer Okavango Research Centre, University of Botswana, Botswana.
33. PALMER CG, O'KEEFFE JH and PALMER AR (1991) Are macroinvertebrate assemblages in the Buffalo River, southern Africa, associated with particular biotopes? Journal of the North American Benthological Society 10: 349-357.
34. SAWULA G and MARTINS E (1991) Major ion chemistry of the lower Boro River, Okavango Delta, Botswana. Freshwater Biology 26: 481-493.
35. TAYLOR E (1999) A pilot study of the biological monitoring of water quality in Namibia's north-eastern perennial rivers. Report RR/99/2. Department of Agriculture, Water and Rural Development, Department of Water Affairs, Namibia.
36. TAYLOR ED and BETHUNE S (1999) Management, conservation and research of internationally-shared watercourses in southern Africa - Namibian experience with the Okavango River and rivers of the eastern Caprivi. Southern African Journal of Aquatic Sciences 24: 36-46.
37. TWEDDLE D, BILLS R, VAN DER WAAL B, SKELTON P, KOLDING J and NENGU S (2003) Fish diversity and fisheries in the Okavango Delta, Botswana. In: Alonso LE and Nordin L (eds) A Rapid Biological Assessment of the Aquatic Ecosystems of the Okavango Delta, Botswana: High-water Survey. RAP Bulletin of Biological Assessment 27, Conservation International.