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About 50% of female sea turtles complete "false crawls," which occur when they crawl onto the beach but return to the water without laying eggs.
For example, the average carapace length of nesting females (n = 251) at Playa Nancite, Costa Rica, was determined to be 63.3 cm, with the smallest recorded at 54.0 cm. [7] Females can lay up to three clutches per season, but most only lay one or two clutches. [11] The female remains near shore for the internesting period, which is about one month.
At breeding sites when a loggerhead turtle lays multiple clutches in a season, a higher temperature will cause the duration of time between laying two different nests to become shorter. The amount of food availability makes a difference in reproductive output because when there is a greater amount of food available, the turtles will grow to a ...
Suitable terrestrial area is required for egg-laying by nesting females, who will normally lay 6–10 eggs at a time, with larger females capable of bearing more. Studies have shown the turtles' suitable area criteria will not change even with significant anthropogenic change, meaning humans should be careful when modifying yellow-bellied ...
The Florida box turtle reaches sexual maturity around 12–13 years of age. [9] While some species can produce only one clutch in a breeding season, the Florida box turtle has been observed laying as many as four separate clutches in a single year. The egg laying season occurs in the Spring and generally lasts from April to early June. On ...
Sexually mature females of the western pond turtle produce 5–13 eggs per clutch. They deposit eggs either once or twice a year. They may travel some distance from water for egg-laying, moving as much as 0.8 km (1/2 mile) away from and up to 90 m (300 ft) above the nearest source of water, but most nests are within 90 m (300 ft) of water.
The number of eggs in a flatback sea turtle's clutch are fewer than other sea turtles. [6] It will have an average of 50 eggs laid each time in a clutch, while other sea turtles may lay up to 100-150 eggs in a clutch. [6] [8] The eggs are about 55 mm (2.2 in) long within these clutches. [6]
After mating, females drag their heavy bodies high onto the beach during the night. They clear an area of debris and dig a nesting hole using their rear flippers, then lay clutches of eggs and cover them with sand. Caribbean and Florida nests of E. imbricata typically contain around 140 eggs. After the hours-long process, the female returns to ...