Table 1 Maternal-investments, spatial investments, and temporal investments by nesting females in the loggerhead sea turtle, C. caretta, 1988–2004. As noted, data on mate number, migration routes and nest depth were from other studies.

From: Multiple maternal risk-management adaptations in the loggerhead sea turtle (Caretta caretta) mitigate clutch failure caused by catastrophic storms and predators

   Range Mean
Maternal investment adaptations
1 Mate number34,39,62,63 1–7 males 2.6
2 Clutch size 47–165 105
3 Number of clutches per nesting season 1–7 3
4 Fertility per nesting season (total egg number per female per nesting season) 193–733 289
Spatial investment adaptations
5 Migration routes to mating areas35,37 Variable  
6 Clutch distance from the vegetative line (m) − 8.2–22.9 1.2
7 Clutch distance from the high tide line (m) 0.0–41.8 17.0 m
8 Clutch deposition by depth of beach (m) 6.1–43.0 17.0 m
9 Clutch deposition along the beach (km) 1.5–12.2 9.0 m
10 Distance between clutches along the beach (m) 258–1953 732 m
11 Nest depth (cm)64,65,66 35–55 NA
Temporal investment adaptations
12 Nesting season (month) April–August June
13 Clutch intervals per nesting season (number of days) 10–32 15
14 Remigration intervals (number of years) 2–8 3