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.

Maternal investment adaptations

1

Mate number^34,39,62,63

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 areas^35,37

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