Table 1 Trap efficiency measured by the number of specimens collected by the traps using the cascade system in the Amazon forest in three collecting points, ZF2 (north of Manaus) and Iranduba (west of Rio Negro) (both in the state of Amazonas) and Gurupi National park (state of Maranhão), Brazil.
Height (meters) | Number of specimens sampled each 15 days | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ZF21 | ZF22 | ZF23 | ZF24 | ZF25 | ZF26 | Iranduba7 | Iranduba8 | Gurupi9 | Mean | % of level | Specimens/day | |
Ground level | 23,180 | 14,060 | 25,460 | 23,180 | 15,580 | 20,900 | 15,892 | 18,620 | 12,626 | 18,833 | 32.0% | 1345 |
7 | 15,960 | 11,400 | 12,920 | 8360 | 7220 | 7220 | 13,200 | 15,960 | 8404 | 11,183 | 19.0% | 799 |
14 | 16,720 | 8360 | 4180 | 3800 | 4560 | 7980 | 10,653 | 12,540 | 9410 | 8689 | 14.7% | 621 |
21 | 152010 | 22,420 | 17,860 | 7600 | 7220 | 4180 | 8716 | 17,480 | 8463 | 10,607 | 18.0% | 758 |
28 | 14,440 | 14,820 | 6460 | 4180 | 3420 | 6840 | 9396 | 17,480 | 9664 | 9633 | 16.3% | 688 |
Total | 71,820 | 71,060 | 66,880 | 47,120 | 38,000 | 47,120 | 57,857 | 82,080 | 48,567 | 58,945 | – | 4210 |
