Search Rate and Functional Response of a Eusocial Insect (Oecophylla longinoda) in a Tanzanian Mango Orchard

Table 4

The search rates from the 9 trees calculated according to the Nicholson-Bailey equation (upper line in normal font) and Lotka-Volterra (lower lines in italics). All figures are ×10⁻⁴ ant⁻¹  × 30 minutes⁻¹.

Colony	Ant density	Crown volume (m^3)	Int. 1	Int. 2	Int. 3	Int. 4	Int. 5	Avg.	S.E.
1	1216	4.9	0.9	19.2	7.8	1.7	0.0	5.9	6.7
			0.8	4.8	5.0	3.7	0.41	3.7	1.8
2	346	3.1	1.5	0.0	3.2	0.0	0.0	0.9	1.2
			1.4	0.0	2.9	0.0	0.0	0.9	1.1
3	687	2.1	2.0	2.6	1.5	0.0	0.0	1.2	1.7
			1.7	2.1	1.3	0.0	0.0	1.0	0.6
4	2436	3.6	1.4	1.0	1.0	1.9	0.8	1.2	1.7
			1.0	0.7	0.8	1.2	1.5	1.0	0.6
5	1123	1.4	17.1	2.7	20.5	0.0		10.1	12.9
			6.7	1.8	6.4	4.5	8.9	5.7	2.1
6	1611	2.4	0.7	4.2	2.1	0,0	1.4	1.7	1.8
			0.6	2.3	1.5	0.0	3.7	1.6	1.1
7	1240	3.6	3.7	2.3	0.0	0.0	0.0	1.2	1.4
			2.4	1.8	0.0	0.0	0.0	0.8	0.3
8	873	4.0	4.6	2.6	20.0	0.9	0.0	5.6	5.1
			3.4	1.9	4.3	0.8	0.0	2.1	1.6
9	3014	6.6	1.8	7.5	1.0	0.3	0.8	2.3	3.0
			1.0	1.8	0.7	0.3	0.6	0.9	0.5
Avg.	1394	3.5	3.8	5.5	5.7	0.5	0.3	3.2
			2.1	2.1	2.3	1.0	1.2	1.7
S.E.	253	0.5	1.1	1.8	2.4	0.3	0.2	1.1
			2.5	2.6	3.0	2.3	2.6	2.6