ASPECTS OF INCUBATION IN OSTRICHES

References

• Ar , A. , Paganelli , C. V. , Reeves , R. B. , Greene , D. G. and Rahn , H. 1974 . The avian egg: water vapor conductance, shell thickness, and functional pore area . Condor , 76 : 153 – 158 .
   Web of Science ®Google Scholar
• Ar , A. and Rahn , H. 1978 . “ Interdependence of gas conductance, incubation length, and weight of the avian egg ” . In Respiratory function in birds, adult and embryonic Edited by: Piiper , J. 227 – 236 . New York : Springer-Verlag .
   Google Scholar
• Bertram , B. C. R. 1979a . Ostriches recognise their own eggs and discard others . Nature , 279 : 233 – 234 .
   PubMed Web of Science ®Google Scholar
• Bertram , B. C. R. 1979b . “ Breeding system and strategies of ostriches. ” . In Proc. 17th Int. Orn. Congr. (in press)
   Google Scholar
• Bertram , B. C. R. 1979c . “ Vigilance and group size in Ostriches. ” . In Animal Behaviour (in press)
   Google Scholar
• Boswall , J. 1977 . Tool-using by birds and related behaviour . Avicult. Mag. , 83 : 88 – 97 . 146–159;220–228
   Google Scholar
• Brooke , R. K. 1979 . Tool using by the Egyptian Vulture to the detriment of the Ostrich . Ostrich , 50 : 119 – 120 .
   Web of Science ®Google Scholar
• Bruning , D. F. 1974 . Social structure and reproductive behavior in the Greater Rhea . Living Bird , 13 : 251 – 294 .
   Google Scholar
• Cloudsley-Thompson , J. L. and Mohamed , E. R. M. 1967 . Water economy of the Ostrich . Nature , 216 : 1040
   Web of Science ®Google Scholar
• Crawford , E. C. and Schmidt-Nielsen , K. 1967 . Temperature regulation and evaporative cooling in the Ostrich . Amer. J. Physiol. , 212 : 247 – 353 .
   PubMed Web of Science ®Google Scholar
• Drent , R. H. 1970 . Functional aspects of incubation in the Herring Gull . Behaviour Suppl. , 17 : 1 – 132 .
   Google Scholar
• Drent , R. H. 1975 . Incubation Edited by: Farmer , D. S. and King , J. R. Vol. 5 , 333 – 420 . New York : Academic Press . In Avian biology Vol., Ed
   Google Scholar
• Franks , E. C. 1967 . The responses of incubating Ringed Turtle Doves (Streptopelia risoria) to manipulated egg temperatures . Condor , 69 : 268 – 276 .
   Web of Science ®Google Scholar
• Frost , P. G. H. and Siegfried , W. R. 1977 . The cooling rate of eggs of Moorhen Gallinula chloropus in single and multi-egg clutches . Ibis , 119 : 77 – 80 .
   Web of Science ®Google Scholar
• Hoyt , D. F. , Vleck , D. and Vleck , C. M. 1978 . Metabolism of avian embryos: otogeny and temperature effects in the Ostrich . Condor , 80 : 265 – 271 .
   Web of Science ®Google Scholar
• Hurxthal , L. M. 1979 . “ Breeding behaviour of the Ostrich ” . In Struthio camelus massaicus Neumann in Nairobi Park. Ph.D. thesis, Nairobi University
   Google Scholar
• Koen , A. P. 1977 . Massaverlies van volstruiseiers tydens broeiperiode . Elsenburg Joernaal , 1 : 29 – 30 .
   Google Scholar
• Lack , D. 1968 . Ecological adaptations for breeding in birds London : Methuen .
   Google Scholar
• Louw , G. N. 1972 . The role of advective fog in the water economy of certain Namib Desert animals Edited by: Maloiy , G. M. O. London : Academic Press . In Comparative Physiology of desert animals. Ed
   Google Scholar
• Louw , G. N. , Belonje , P. C. and Coetzee , H. J. 1969 . Renal function, respiration, heart rate and thermoregulation in the Ostrich ( . Struthio camelus) Scient. Pap. Namib Desert Res. Stn. , 42 : 43 – 54 .
   Google Scholar
• Rahn , H. and Ar , A. 1974 . The avian egg: incubation time and water loss . Condor , 76 : 147 – 152 .
   Web of Science ®Google Scholar
• Sauer , E. G. F. and Sauer , E. M. 1966a . Social behaviour of the South African Ostrich, Struthio camelus australis. . Ostrich , 6 : 183 – 191 . Suppl
   Google Scholar
• Sauer , E. G. F. and Sauer , E. M. 1966b . The behavior and ecology of the South African Ostrich . Living Bird , 5 : 45 – 75 .
   Google Scholar
• Siegfried , W. R. and Frost , P. G. H. 1974 . Egg temperature and incubation behaviour of the Ostrich . Madoqua , 8 : 63 – 66 .
   Google Scholar
• Simkiss , K. 1974 . The air space of an egg: an embryonic “cold nose”? . J. Zool., Lond. , 173 : 225 – 232 .
   Web of Science ®Google Scholar
• Swart , D. 1978 . Opergingsperiode van volstruiseiers . Elsenburg Joernaal , 2 : 19 – 20 .
   Google Scholar
• Vince , M. A. 1969 . Embryonic communication, respiration and the synchronization of hatching Edited by: Hinde , R. A. 233 – 260 . Cambridge : Cambridge University Press . In Bird vocalizations. Ed
   Google Scholar