. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 1JD00 oo CO 500" — Eggs Young. JFMAMJ0AF0ND Figure 53. Means and extremes of semimonthly estimates of Wedge-tailed Shearwater numbers, Sand Island, Johnston Atoll, 1963-1969. ten percent by 30 September. If there had been no streamer loss, then the 1,720 birds would represent approximately 57 percent of the total population using the island during that period: 1,720 = ca. 3,000- If ten percent of the streamers had been lost by 30 September, then the total population would have been: 1,550 = ca.
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 1JD00 oo CO 500" — Eggs Young. JFMAMJ0AF0ND Figure 53. Means and extremes of semimonthly estimates of Wedge-tailed Shearwater numbers, Sand Island, Johnston Atoll, 1963-1969. ten percent by 30 September. If there had been no streamer loss, then the 1,720 birds would represent approximately 57 percent of the total population using the island during that period: 1,720 = ca. 3,000- If ten percent of the streamers had been lost by 30 September, then the total population would have been: 1,550 = ca. 2, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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