Table 2. Mean (±1SE) visitation by guppies, killifish and crabs in all three stream reaches during day and night.

		Visitation rate (individuals m−2·hr−1)
Period	Visitor	Upstream	Midstream	Downstream
Day	Guppy	NA	29.3(3.5)	25.3(5.3)
	Killifish	12.8(2.9)	1.3(0.5)	0.0(0.0)
	Crab	0.0(0.0)	0.0(0.0)	0.2(0.1)
Night	Guppy	NA	2.2(1.5)	12.4(10.2)
	Killifish	27.0(6.3)	5.2(1.9)	0.0(0.0)
	Crab	24.7(5.4)	4.8(4.8)	12.0(12.0)
Total Daily Mean	Guppy	NA	15.7(3.3)	18.8(4.7)
	Killifish	19.9(2.9)	3.3(0.7)	0.0(0.0)
	Crab	12.1(2.3)	2.4(1.3)	6.1(2.3)

Total daily mean was based on 12 hr diel periods and weighted to compensate for fewer night observations.

NA = not applicable (guppies not present in upstream reach).