Table 1.

Details of numbers and proportions taken plus values of revised per capita attack rates.

treatment number	unpalat. prey per treatment	number of edible prey	mean total number taken	total presented over 8 trials	observed per capita (pc) attack	revised pc value	increase in pc
1	5	20	21.27	40	0.532
2	15	20	28.56	120	0.238	0.177	0.061
3	30	20	34.00	240	0.142	0.089	0.053
4	5	30	21.82	40	0.546
5	15	30	31.60	120	0.263	0.182	0.081
6	30	30	35.12	240	0.146	0.091	0.055