Table 2 Linear regressions of the relation between mean air (independent variable) and mean water temperature (dependent variable) in one lowland (LL) and two highland sites (HL) in western Kenya.

Small-sized pool

Kisian (LL)

.794

8.646

.803

F_1,37 = 147, P < 0.001

Lyanaginga (HL)

.911

6.209

.487

F_1,29 = 26.6, P < 0.001

Fort Ternan (HL)

.856

7.654

.719

F_1,14 = 33.3, P < 0.001

Medium-sized pool

Kisian (LL)

.677

11.802

.745

F_1,38 = 108, P < 0.001

Lyanaginga (HL)

.846

7.745

.407

F_1,29 = 19.2, P < 0.001

Fort Ternan (HL)

.677

11.715

.639

F_1,28 = 47.8, P < 0.001

Large-sized pool

Kisian (LL)

.700

11.400

.743

F_1,39 = 110, P < 0.001

Lyanaginga (HL)

.710

10.852

.405

F_1,29 = 19.0, P < 0.001

Fort Ternan (HL)

.503

15.395

.483

F_1,29 = 26.1, P < 0.001