9780521861724htl 1..2

0

0.04

0.08

0.12

0.16

0.2

0 50 100 150

Adult test diameter (mm)

Egg diameter (mm)

(a)

0

5000

10 000

15 000

20 000

25 000

0.05 0.07 0.09 0.11 0.13 0.15 0.17 0.19

Egg diameter (mm)

Range size (km)

(b)

0 50 100 150

Adult test diameter (mm)

Range size (km)

0

5000

10 000

15 000

20 000

25 000

(c) Figure 10.6

Relationships

between: (a) adult test

diameter and egg size

(R^2 ¼0.322,

F1,18¼8.56,

P¼0.009), (b) egg

diameter and adult

range size, and

(c) adult test diameter

and range size in

regular echnoids.

Data from various

sources (see text).

BODY SIZE, DISPERSAL AND RANGE SIZE IN AQUATIC INVERTEBRATES 201