Abstract
On an 85 km stretch of coastline along the western and northwestern edge of North West Cape Peninsula, Western Australia, are numerous beaches used for nesting by the green turtle Chelonia mydas. Many other beaches in the area are not so used. Nesting beaches displayed three characteristics that distinguished them from non-nesting beaches: the salinity of the sand moisture at nesting depth was lower, the salt content of surface sand was lower, and the beaches were sheltered from prevailing winds. Several beaches on which turtles did not nest exhibited these characteristics, but possessed sand platforms of reduced elevation above sea level. These observations are discussed in relation to the question of what cues green turtles use in selecting nesting beaches.
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Literature cited
Australian National Tide Tables 1982: Canberra: Australian Government Publishing Service 1981
Bustard, R. H. and P. H. Greenham: Physical and chemical factors affecting hatching in the green sea turtle, Chelonia mydas (L.). Ecology 49, 269–276 (1968)
Carr, A., M. H. Carr and A. B. Meylan: The ecology and migrations of sea turtles. 7. The west Caribbean turtle colony. Bull. Am. Mus. nat. Hist. 162, 4–46 (1978)
De Jong, T. M.: Water and salinity relations of Californian beach species. J. Ecol. 67, 647–663 (1979)
Gurr, C. G., T. J. Marshall and J. T. Hutton: Movement of water in soil due to a temperature gradient. Soil Sci. 74, 335–345 (1952)
Hendrickson, J. R. and E. Balasingham: Nesting beach preferences of Malaysian sea turtles. Bull. natn. Mus. St. Singapore 33 (10), 69–76 (1966)
Hirth, H. F.: Synopsis of biological data on the green turtle Chelonia mydas (Linnaeus) 1758. F.A.O. Fish. Synopses 85, 1:1–8:19 (1971)
Hirth, H. and A. Carr: The green turtle in the Gulf of Aden and the Seychelles Islands. Verh. K. ned. Akad. Wet. 58, 1–442 (1970)
Hughes, G. R.: The sea turtles of south-east Africa. I. Status, morphology and distributions. Investl Rep. oceanogr. Res. Inst., Durban 35, 1–144 (1974)
Johannes, R. E.: The ecological significance of the submarine discharge of groundwater. Mar. Ecol. Prog. Ser. 3, 365–373 (1980)
Limpus, C. J.: The status of Australian sea turtle populations. In: Biology and conservations of sea turtles, pp 297–303. Ed. by K. Bjorndal. Washington, D. C.: Smithsonian Press 1982
Mortimer, J.: Factors influencing beach selection by nesting sea turtles. In: Biology and conservation of sea turtles, pp 45–51. Ed. by K. Bjorndal. Washington, D.C.: Smithsonian Press 1982
Olsson-Seffer, P.: Hydrodynamic factors influencing plant life on sandy seashores. New Phytol. 8, 39–49 (1909)
Philip, J. R. and D. A. de Vries: Moisture movement in porous materials under temperature gradients. Trans. Am. geophys. Un. 38, p. 222 (1957)
Rollins, R. L., M. G. Spangler and D. Kirkhan: Movement of soil moisture under a thermal gradient. Proc. Highw. Res. Bd 33, 492–508 (1954)
Rose, C. W.: Water transport in soil with a daily temperature wave. I. Theory and experiment. Austr. J. Soil. Res. 6, 31–44 (1968)
Sofoulis, J.: Notes on water supply, Exmouth Gulf area. Rep. geol. Surv. West. Aust. 1949, 70–71 (1949)
Stancyk, S. E. and J. P. Ross: An analysis of sand from green turtle nesting beaches on Ascension Island. Copeia 1978, 93–99 (1978)
Wentworth, C. K.: Factors in the behavior of groundwater in the Ghyben-Herzberg System. Pacif. Sci. 1, 172–184 (1947)
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Communicated by G.F. Humphrey, Sydney
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Johannes, R.E., Rimmer, D.W. Some distinguishing characteristics of nesting beaches of the green turtle Chelonia mydas on North West Cape Peninsula, Western Australia. Mar. Biol. 83, 149–154 (1984). https://doi.org/10.1007/BF00394722
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DOI: https://doi.org/10.1007/BF00394722