Report on the 2007 green turtle program at Tortuguero, Costa Rica
Green turtle nesting was observed between March and November, 2007; although false crawl emergences were seen from mid-February until December. Peak nesting was recorded on 2 September, 2,193 nests were counted in a single night.
An estimated 177,620 green turtle nests were laid during 2007.A total of 21.0% of all green turtle nests recorded during track surveys were deposited between Tortuguero river mouth (mile –3/8) and mile 5, where all night patrols took place.
Jaguars killed a minimum of 12 green turtles in 2007. Hawksbill nesting density was very low throughout the season, with only two nests recorded; one in May, the other in July. During daily track surveys conducted by RAs between 13 June and 31 October, a total of 24,499 green turtle nests and 23,324 green turtle false crawls were recorded between the Tortuguero river mouth and the mile 5 marker.