Observations on New Or Unusual Birds from Trainidad, West Indies
474 SHORT COMMUNICATIONS SUMMARY CLAUSEN, G., R. SANSON, AND A. STORESUND. 1971. The HbO, dissociation curve of the fulmar and Blood respiratory properties have been compared in the herring gull. Respir. Physiol. 12 :66-70. antarctic birds. Blood hemoglobin content, hemato- DANZER, L. A., AND J. E. COHN. 1967. The dis- crit, and mean corpuscular hemoglobin concentration sociation curve of goose blood. Respir. Physiol. (MCHC) are higher in three species of penguins 3:302-306. than in the Giant Fulmar and the antarctic Skua. HOLMES, A. D., M. G. PIGGOT, AND P. A. CAhwmLL. Penguin chicks show lower hemoglobin values than 1933. The hemoglobin content of chicken blood. adults. HbO, dissociation curves show higher affin- J. Biol Chem. 103:657. ity in diving than nondiving birds. Among penguins, LENFANT, C., AND K. JOHANSEN. 1965. Gas trans- the Chinstrap Penguin, practicing longer and deeper port by the hemocyanin containing blood of the dives, has blood with higher O? affinity than the other cephalopod, Octopus dofleini. Amer. J. Physiol. species. The Bohr effect is similarly higher in diving 209:991-998. than nondiving birds. The adaptive value of the blood LENFANT, C., G. L. KOOYMAN, R. ELSNER, AND C. M. respiratory properties is discussed in the context of DRABEK. 1969. Respiratory function of blood behavior and mode of life of the species studied. of the adelie penguin, Pygoscelis adeliae. Amer. ACKNOWLEDGMENT J. Physiol. 216: 1598-1600. LUTZ, P. L., I. S. LoNchrmn, J. V. TUTTLE, AND K. This work was supported by the National Science SCHMIDT-NIELSEN. 1973. Dissociation curve of Foundation under grants GV-25401 and GB-24816 bird blood and effect of red cell oxygen consump- to the Scripps Institution of Oceanography for opera- tion.
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