Avian Demography Unit
Department of Statistical Sciences
University of Cape Town 		ADU home     UCT Home page

ˇImaginemos el futuro, en vez de aceptarlo como una maldición!
Eduardo Galeano

René Navarro
Scientific Officer, IT Manager, Programmer, Web-master, etc.
(en otras palabras, ¡Hombre Orquesta!)
email

René Navarro was initially employed as a research officer in the Avian Demography Unit, assisting mainly with the Southern African Bird Atlas Project. He was "promoted" in 1999 to a full-time post as IT Manager for the ADU.
He completed a BSc at the Universidad Austral de Chile in 1979, and an MSc at the same university in 1985. Between 1980 and 1985, he was a teaching assistant at this university and worked on research projects relating to aquaculture and conservation. He was a diver on the 22nd Antarctic Expedition of the Chilean Antarctic Institute. He came to South Africa in 1986, and has done research on gannets as part of the Benguela Ecology Programme. In addition to his ornithological expertise, he has developed an extensive knowledge of computers and software. He is also a keen wildlife photographer.
René's own research focuses on the ecology of shorebirds and seabirds. He is also interested in the computer modelling of ecological processes. His research for ADU involves the development of computer programs, database design, graphics, web master, and the implementation of a geographic information system (GIS).

He was, along with Les Underhill of the Avian Demography Unit, awarded SANCOR's "Marine and Coastal Communicator of the Year" for 2001, in the scientific category. This award recognised their contribution to communicating the impact of the Treasure oil spill to the public, mainly via a website.

These are some of the sites created & maintained by René:

Peer-review publications:

  1. Jerardino, A., & R.A. Navarro (in press). Shell morphometry of seven limpet species from coastal shell middens in southern Africa. Journal of Archaeological Science.
  2. Jerardino, A., G.M. Branch & R.A. Navarro (in press). Archaeological Perspectives on Human Impacts on Marine Resources of the West Coast of South Africa. In: Human Impacts on Marine Environments, Erlandson, J. M. & Rick, T. C. (Eds), Berkeley: University of California Press.
  3. Harebottle, D. M., R. A. Navarro, L. G. Underhill, & M. Waltner. 2006. Trends in numbers of migrant waders (Charadrii) at Langebaan Lagoon, South Africa, 1975-2003. In: Waterbirds around the World, Boere GC, Galbraith CA, Stroud DA (eds). The Stationary Office, Edinburgh: 376-378.
  4. Adams, N.J. & R. A. Navarro 2005. Foraging of a coastal seabird: flight patterns and movements of breeding Cape gannets Morus capensis. African Journal of Marine Science 27(1):239-248. PDF (1.2 Mb)
  5. Machange, R.W., A.J. Jenkins & R.A. Navarro 2005. Eagles as indicators of ecosystem health: is the distribution of Martial Eagle nests in the Karoo, South Africa, influenced by variations in land-use and rangeland quality? Journal of Arid Environments 63:223-243. PDF (592 Kb)
  6. de Waal, S.W.P., G.M. Brancha & R.A. Navarro 2003. Interpreting evidence of dispersal by Haliotis midae juveniles seeded in the wild. Aquaculture 221: 299-310. PDF (223 Kb)
  7. Jerardino, A. & R.A. Navarro 2002. Cape rock lobster (Jasus lalandii) Remains from South African West Coast Shell Middens: Preservational Factors and Possible Bias. Journal of Archaeological Science 29: 993-999.
  8. Schlatter, R.P., R.A. Navarro & P. Corti 2002. Effects of El Niño Southern Oscillation on numbers nf Black-necked Swans at Rio Cruces Sanctuary, Chile. Colonial Waterbirds 25 (Special Publication 1):114-122.
  9. Jerardino, A., R.A. Navarro & P. Nilsen. 2001. Cape rock lobster (Jasus lalandii) exploitaition in the past: estimating caparace length from mandible sizes. South African Journal of Science 97:59-62.
  10. Harrison, J.A. & R.A. Navarro 1999. Protected areas in South Africa: the effect of size on the presence and abundance of woodland birds. In. N. J. Adams & R. H. Slotow (eds). Proc. 22nd International Ornithological Congress, Durban. Johannesburgo, BirdLife South Africa.
  11. Underhill, L. G., M. Herremans, R.A. Navarro & J. A. Harrison. 1998. Where do Palearctic migrants passerines concentrate in southern Africa during the austral summer? In F. Spina & A. Grattarola (eds.) Proceedings of the 1st Meeting of the European Ornithologists' Union, 1997. Biol. Cons. Fauna 102:168-174.
  12. Bennett, N. C. & R.A. Navarro. 1997 Differential growth patterns between successive litters of the eusocial Damaraland molerat, Cryptomys damarensis from Namibia. Journal of Zoology 214: 465-473.
  13. Allan, D. G., J. A. Harrison, R.A. Navarro, B. W. van Wilgen & M. W. Thompson. 1997. The impact of commercial afforestation on bird populations in Mpumalanga Province, South Africa - insights from bird-atlas data. Biological Conservation 79: 173-185. PDF (1188 Kb)
  14. Berruti, A., J. A. Harrison & R.A. Navarro. 1994. Seasonal migration of terrestrial birds along the southern and eastern coasts of southern Africa. Ostrish 65:54-65.
  15. Navarro, R. A., J. A. Harrison, D. G. Allan & W. Zucchini. 1993. Correlating relative abundance and rainfall: a time-series analysis of checklists. Proceedings VIII Pan-African Ornithological Congress, 379-388.
  16. Velásquez, C. & R.A. Navarro. 1993. The influence of water depth and sediment type on the foraging behaviour of Whimbrels. Journal of Field Ornithology, 64:149-157. PDF (652 Kb)
  17. Adams, N. J., C. Maloney & R.A. Navarro. 1993. Estimated food consumption by penguins at the Prince Edward Islands. Antarctic Science 5:245-252.
  18. Navarro, R. A. 1992. Body composition, fat reserves and fasting capability of Cape Gannet chicks. Wilson Bulletin 1992, 104:644-655. PDF (555 Kb)
  19. Hockey, P. A. R., R.A. Navarro, B. Kalejta & C. Velásquez. 1992. The riddle of the sands: Why are shorebird densities so high in southern estuaries? American Naturalist 140:961-979. PDF (1953 Kb high res.); PDF (547 Kb low res.)
  20. Navarro, R. A. 1991. Food addition and twinning experiments in the Cape Gannet: effects on breeding success and chick growth and behavior. Colonial Waterbirds 14:92-102.
  21. Navarro, R. A., Velásquez, C., & Schlatter, R. 1989. Diet of the Surfbird in Southern Chile. Wilson Bull. 101:137-141. PDF (239 Kb)
  22. Jaramillo, E., S. Mulsow & R.A. Navarro. 1985. Intertidal and subtidal macroinfauna in the Queule River Estuary, South of Chile. Rev. Chil. Hist. Nat., 58:127-137.

Book chapters:

  1. Alexander G.J., Harrison J.A., Fairbanks D.H. & R.A. Navarro 2004. Biogeography of the frogs of South Africa, Lesotho and Swaziland. Pp. 31-47. In: Minter L.R., Burger M., Harrison J.A., Braack H.H., Bishop P.J. & Kloepfer D. (eds). Atlas and Red Data book of the frogs of South Africa, Lesotho and Swaziland. SI/MAB Series no. 9. Smithsonian Institution, Washington, D.C.
  2. Allan, D. G., J. A. Harrison, M. Herremans, R.A. Navarro, & L. G. Underhill. 1997. Southern African Geography: its relevance to birds. In: The Atlas of Southern African Birds Vol. 1: Non-passerines. Harrison, J. A. Allan, D. G., Underhill. L. G., Herremans, M., Tree, A.J., Parker, V. & Brown, C.J. (eds), pp. LXV-CI. BirdLife South Africa, Johannesburg.
  3. Navarro, R. A. 1997. Greenbacked Heron. In: The Atlas of Southern African Birds Vol. 1: Non-passerines. Harrison, J. A. Allan, D. G., Underhill. L. G., Herremans, M., Tree, A.J., Parker, V. & Brown, C.J. (eds), pp. 70-71. BirdLife South Africa, Johannesburg. PDF (232 Kb)
  4. Navarro, R. A. 1997. Dwarf Bittern. In: The Atlas of Southern African Birds Vol. 1: Non-passerines. Harrison, J. A. Allan, D. G., Underhill. L. G., Herremans, M., Tree, A.J., Parker, V. & Brown, C.J. (eds), pp. 76-77. BirdLife South Africa, Johannesburg. PDF (105 Kb)
  5. Navarro, R.A. 1997. Painted Snipe. In: The Atlas of Southern African Birds Vol. 1: Non-passerines. Harrison, J. A. Allan, D. G., Underhill. L. G., Herremans, M., Tree, A.J., Parker, V. & Brown, C.J. (eds), pp. 372-373. BirdLife South Africa, Johannesburg. PDF (206 Kb)
  6. Harrison, J. A. & R.A. Navarro. 1994. Modelled reporting rates as indices of changes in relative abundance with altitude and season. Pp. 607-618. Ed. E.J.M. Hagemeijer & T.J. Verstrael, Bird Numbers 1992. Distribution Monitoring and Ecological aspects. Statistics Netherlands, Coorburg/Heelen.

Research Reports:

  1. Bruinzeel, L.W., R.A. Navarro, D.M. Harebottle, L.G. Underhill. 2006. Distribution of wild birds as potential avian influenza vectors in KwaZulu-Natal. ADU Research Report.
  2. Harebottle, D.M., Harrison, J.A., & R.A. Navarro. 2004. Conservation of Birds in Gauteng: an analysis. ADU Research Report 60. ADU, UCT, Cape Town.
  3. Harrison, J.A., Spottiswoode, C.N. & R.A. Navarro. 2000. Bird monitoring at Blouvlei, Century City, January 1999-January 2000. ADU Research Report 36. ADU, UCT, Cape Town.
  4. Harrison, J.A., Spottiswoode, C.N. & R.A. Navarro. 1999. Bird monitoring at Blouvlei, Century City, February-December 1998. ADU Research Report 30. ADU, UCT, Cape Town.
  5. Harrison, J. A. R.A. Navarro & Barnes, K.N. 1997. An analysis of the avifauna of Gauteng. ADU Research Report 22. ADU, UCT, Cape Town.
  6. Allan, D.G. Harrison, J. A. R.A. Navarro & Martinez, P. 1995. The Redbilled Quellea and non-target birds – insights from Bird Atlas data. ADU Research Report 4. ADU, UCT, Cape Town.

Books:

  1. Young, D.J., J.A. Harrison, R.A. Navarro, M.D. Anderson, & B. D. Colahan (eds). 2003. Big Birds on Farms: Mazda CAR Report 1993-2001. Avian Demography Unit, Cape Town.
  2. Taylor, P. B., R.A. Navarro, J. A. Harrison, M. Wren-Sargent, & S. L. Kieswetter. 1999. TOTAL CWAC Report: Coordinated Waterbird Counts in South Africa. 1992-97. Avian Demography Unit, Cape Town.
  3. Oatley, T.B., Oschadleus, H.D., Navarro, R. A., & Underhill, L.G. 1998. Review of ring recoveries of bird of prey in Southern Africa: 1948-1998. Endangered Wildlife Trust, Johannesburg.

Other articles:

  1. Navarro, R.A. 2004. Helm Field Guides - Birds of Chile including the Antarctic Peninsula the Falkland Islands and South Georgia. Ostrich, 75:77 (Book review)
  2. Mullers. R. & R.A. Navarro. 2004. How do Cape Gannet parents satisfy their young? Bird Numbers 12(2):35-37.
  3. Navarro, R.A. 2001. Cape Fur Seal predation on Cape Gannet fledglings. Bird Numbers 9(2):15-16.
  4. Navarro, R.A. 1998. Las aves de Bioko, Guinea Ecuatorial. Durban Museum Novitates, 23:72 (Book review)
  5. Navarro, R.A. 1997. Focus on gannets - a photographic portfolio. Africa - Birds & Birding, Vol. 1, No. 5. (Photographic assay)
  6. Navarro, R.A., & Velásquez, C. 1988. Comité de aves raras: una proposición a la Unión de Ornitólogos de Chile. UOCH Bol. Inf. 6:7-8.
  7. Navarro, R.A. 1984. [Computer program for numerical analysis of communities: diversity and similarity.] Medio Ambiente 7:82 87. (Spanish, English summary)

Internet articles:

  1. Seabird Colonies: Malgas Island.
  2. Cape Gannet Morus capensis

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