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Armstrong, A.J. & Siegfried, W.R. 1990. Selective use of heuweltjie earth mounds by sheep in the Karoo. South African Journal of Ecology 1:77-80.
Benson, P.C., Tarboton, W.R., Allan, D.G. & Dobbs, J.C. 1990. The breeding status of the Cape Vulture in the Transvaal during 1980 - 1985. Ostrich 61:134-142.
Boobyer, M.G. 1990. The diet of Ludwig's Bustard. Ostrich 61:152.
Brooke, R.K. 1990. Review: The birds of Ghana (Grimes). Ostrich 61:110.
Brooke, R.K. 1990. Review: Bibliographie ornithologischer Bibliographien I & II (Brasseler). Ostrich 61:145.
Brooke, R.K. 1990. Review: The zoological exploration of southern Africa 1650-1790 (Rookmaaker). Ostrich 61:154.
Brooke, R.K., Crowe, T.M. & Cambal, M.S. 1990. Copulatory behaviour in Burchell's Coucal Centropus burchellii. Ostrich 61:87.
Brooke, R.K. & Dean, W.R.J. 1990. On the biology and taxonomic position of Drymoica substriata Smith, the so-called Namaqua Prinia. Ostrich 61:50-55.
Brown, C. & Ward, D. 1990. The morphology of the syrinx in the Charadriiformes (Aves): possible phylogenetic implications. Bonner Zoologische Beitraege 41:95-107.
Brown, C.R., Klages, N.T. & Adams, N.J. 1990. Short and medium-term variation in the diets of penguins at Marion Island. South African Journal of Antarctic Research 20:13-20.
Clancey, P.A. & Brooke, R.K. 1990. Avian nomenclatural issues arising from the publication of Rookmaaker's The zoological exploration of southern Africa 1650-1790. Ostrich 61:143-145.
Cockcroft, V.G., Peddemors, V.M., Ryan, P.G. & Lutjeharms, J.R.E. 1990. Cetacean sightings in the Agulhas retroflection, Agulhas rings and subtropical convergence. South African Journal of Antarctic Research 20:64-67.
Cooper, J. 1990. Changes in South African National Antarctic Research Programme. Antarctic Science 2:186.
Cooper, J. 1990. Publications and theses on Antarctic and sub-Antarctic birds, 1989. Marine Ornithology 18:19-25.
Cooper, J. & Brown, C.R. 1990. Ornithological research at the sub-Antarctic Prince Edward Islands: a review of achievements. South African Journal of Antarctic Research 20:40-57.
Cooper, J., Brown, C.R., Gales, R.P., Hindell, M.A., Klages, N.T.W., Moors, P.J., Pemberton, D., Ridoux, V., Thompson, K.R. & Van Heezik, Y.M. 1990. Diets and dietary segregation of crested penguins (Eudyptes). (In: Davis, L.S. & Darby, J.T., eds. Penguin biology. San Diego: Academic Press. pp. 131-156.
Cooper, J, Crawford, R.J.M., Suter, W. & Williams, A.J. 1990. Distribution, population size and conservation of the Swift Tern Sterna bergii in southern Africa. Ostrich 61:56-65.
Crawford, R.J.M., Siegfried, W.R., Shannon, L.V., Villacastin-Herrero, C.A. & Underhill, L.G. 1990. Environmental influences on marine biota off southern Africa. South African Journal of Science 86:330-339.
Crowe, T.M. 1990. A quantitative analysis of patterns of distribution, species richness and endemism in southern African vertebrates. (In: Peters, G. & Hutterer, R., eds. Vertebrates in the tropics. Proceedings of the International Symposium on Vertebrate Biogeography and Systematics in the Tropics, Bonn, 5-8 June 1989. Bonn: Museum Alexander Koenig. pp. 145-160.)
Crowe, T.M. 1990. Character "assassination" reborn! A report on a workshop on cladistics and cladistic biogeography. Cladistics 6:101-103.
Crowe, T. 1990. Review: The quails, partridges and francolins of the world (Johnsgard). Ostrich 61:155.
Darby, J.T. & Seddon, P.J. 1990. Breeding biology of Yellow-eyed Penguins (Megadyptes antipodes). (In: Davis, L.S. & Darby, J.T., eds. Penguin biology. San Diego: Academic Press. pp. 45-62.)
Dastych, H., Ryan, P.G. & Watkins, B.P. 1990. Notes on Tardigrada from western Dronning Maud Land (Antarctica) with a description of two new species. Entomologische Mitteilungen der Zoologisches Museum, Hamburg 10:57-66.
Dean, W.R.J. & Bond, W.J. 1990. Evidence for rapid faunal changes in a man-made lake. I. Ants. Oecologia 83:388-391.
Dean, W.R.J., Milton, S.J. & Siegfried, W.R. 1990. Dispersal of seeds as nest material by birds in semiarid Karoo shrubland. Ecology 71:1299-1306.
Dean, W.R.J. & Siegfried, W.R. 1990. The use of wool as nest material by birds in the Karoo, South Africa: bane or bonus? South African Journal of Ecology 1:31-32.
Dean, W.R.J., Siegfried, W.R. & Macdonald, I.A.W. 1990. The fallacy, fact, and fate of guiding behavior in the Greater Honeyguide. Conservation Biology 4: 99-101.
Fraser, M.W. 1990. Foods of Redwinged Starlings and the potential for avian dispersal of Acacia cyclops at the Cape of Good Hope Nature Reserve. South African Journal of Ecology 1:73-76.
Fraser, M.W. 1990. Small mammals, birds and ants as seed predators in post-fire mountain fynbos. South African Journal of Wildlife Research 20:52-56.
Fraser, M.W. & Crowe, T.M. 1990. Effects of alien woody plant invasion on the birds of mountain fynbos in the Cape of Good Hope Nature Reserve. South African Journal of Zoology 25:97-108.
Frost, S.K. 1990. Notes on the breeding behaviour of Marico and Pallid Flycatchers in the central Transvaal, South Africa. Ostrich 61:111-116.
Goldstein, D.L., Williams, J.B. & Braun, E.J. 1990. Osmoregulation in the field by Salt-marsh Savannah Sparrows Passerculus sandwichensis beldingi. Physiological Zoology 63:669-682.
Hampton, I., Armstrong, M.J., Jolly, G.M. & Shelton, P.A. 1990. Assessment of anchovy spawner biomass off South Africa through combined acoustic and egg-production surveys. Rapports et Proces-verbaux des Reunions du Conseil International pour l'Exploration de la Mer 189:18-32.
Hayes, B.P. & Brooke, M. de L. 1990. Retinal ganglion cell distribution and behaviour in procellariiform seabirds. Vision Research 30:1277-1289.
Hockey, P.A.R. 1990. The riddle of the sands: why are migrant shorebird densities so high in southern estuaries? (abstract). Wader Study Group Bulletin 59:7.
Hockey, P.A.R. & Steele, W.K. 1990. Intraspecific kleptoparasitism and foraging efficiency as constraints on food selection by Kelp Gulls Larus dominicanus. (In: Hughes, R.N., ed. Behavioural mechanisms of food selection. Berlin: Springer-Verlag. pp. 679-706.)
Hunter, S. 1990. The impact of introduced Cats on the predator-prey interactions of a sub-Antarctic avian community. (In: Kerry, K.R. & Hempel, G., eds. Antarctic ecosystems. Berlin: Springer-Verlag. pp. 365-371.)
Jackson, S. & Place, A.R. 1990. Gastrointestinal transit and lipid assimilation efficiencies in three species of sub-Antarctic seabird. Journal of Experimental Zoology 255:141-154.
Jolly, G.M. & Hampton, I. 1990. A stratified random transect design for acoustic surveys of fish stocks. Canadian Journal of Fisheries and Aquatic Sciences 47:1282-1291.
Jolly, G.M. & Hampton, I. 1990. Some problems in the statistical design and analysis of acoustic surveys to assess fish biomass. Rapports et Proces-verbaux des Reunions du Conseil International pour l'Exploration de la Mer 189:415-420.
Kemp, A.C. & Crowe, T.M. 1990. A preliminary phylogenetic and biogeographic analysis of the genera of diurnal raptors. (In: Peters, G. & Hutterer, R., eds. Vertebrates in the tropics. Proceedings of the International Symposium on Vertebrate Biogeography and Systematics in the Tropics, Bonn, 5-8 June 1989. Bonn: Museum Alexander Koenig. pp. 161-175.)
Komen, J. 1990. Size variation in the Chestnut Weaver Ploceus rubiginosus. Cimbebasia 12:69-74.
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Macdonald, I.A.W. 1990. Range expansion of the Masked Weaver Ploceus velatus in the Karoo facilitated by the spread of alien Mesquite Trees. Ostrich 61: 85-86.
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Milton, S.J. 1990. A lycaenid butterfly (Anthene amarah Guerin) selects unseasonal young Acacia shoots for oviposition. South African Journal of Zoology 25:84-85.
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Preston, G.R., Fuggle, R.F. & Siegfried, W.R. 1990. Attitudes of business leaders and professional ecologists toward corporate social funding of environmental conservation. South African Journal of Business Management 21:79-85.
Rebelo, A.G. & Siegfried, W.R. 1990. Protection of fynbos vegetation: ideal and real-world options. Biological Conservation 54:15-31.
Ryan, P.G. 1990. The marine plastic debris problem off southern Africa: types of debris, their environmental effects, and control measures. (In: Shomura, R.S. & Godfrey, M.L., eds. Proceedings of the Second International Conference on Marine Debris, 2-7 April 1989, Honolulu, Hawaii. NOAA Technical Memorandum NMFS, NOAA-TM-NMFS-SWFSC-154. pp. 85-102.)
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Ryan, P.G. & Avery, G. 1990. Arctic Skua killed by sea-barbel spine. British Birds 83:282-283.
Ryan, P.G., Dean, W.R.J., Moloney, C.L., Watkins, B.P. & Milton, S.J. 1990. New information on seabirds at Inaccessible Island and other islands in the Tristan da Cunha group. Marine Ornithology 18:43-54.
Ryan, P.G. & Moloney, C.L. 1990. Plastic and other artefacts on South African beaches: temporal trends in abundance and composition. South African Journal of Science 86:450-452.
Seddon, P.J. 1990. Behaviour of the Yellow-eyed Penguin chick. Journal of Zoology, London 220:333-343.
Seddon, P.J. & Darby, J.T. 1990. Activity budget for breeding Yellow-eyed Penguins. New Zealand Journal of Zoology 17:527-532.
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Siegfried, W.R. 1990. Tail length and biting insects of ungulates. Journal of Mammalogy 71:75-78.
Siegfried, W.R., Crawford, R.J.M., Shannon, L.V., Pollock, D.E., Payne, A.I.L. & Krohn, R.G. 1990. Scenarios for global-warming induced change in the open-ocean environment and selected fisheries of the west coast of southern Africa. South African Journal of Science 86:281-285.
Steele, W.K. & Hockey, P.A.R. 1990. Population size, distribution and dispersal of Kelp Gulls in the southwestern Cape, South Africa. Ostrich 61:97-106.
Turner, J.S. 1990. Review: Form and function in birds, 4 (King & McLelland). Ostrich 61:154-155.
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Van Heezik, Y. 1990. Diets of Yellow-eyed, Fiordland Crested and Little Blue Penguins breeding sympatrically on Codfish Island, New Zealand. New Zealand Journal of Zoology 17:543-548.
Van Heezik, Y. & Davis, L. 1990. Effects of food variability on growth rates, fledging sizes and reproductive success in the Yellow-eyed Penguin Megadyptes antipodes. Ibis 132:354-365.
Van Heezik, Y. & Seddon, P.J. 1990. Effect of human disturbance on beach groups of Jackass Penguins. South African Journal of Wildlife Research 20:89-93.
Velasquez, C.R., Kaletja, B. & Turner, E. 1990. The Berg River Estuary: an important wetland for Caspian Terns Sterna caspia in South Africa. Marine Ornithology 18:65-68.
Williams, A.J. 1990. Hartlaub's Gull: eggs and incubation. Ostrich 61:93-96.
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Withers, P.C. & Williams, J.B. 1990. Metabolic respiratory physiology of an arid-adapted Australian bird, the Spinifex Pigeon. Condor 92:961-969.
Woehler, E.J. & Gilbert, C.J. 1990. Hybrid Rockhopper-Macaroni Penguins, interbreeding and mixed species pairs at Heard and Marion Islands. Emu 90:198-201.
