Table 2. Result of global clustering tests applied to the presence of pupae and adult Ae. aegypti (k-function) and to the abundance of pupae and adult Ae. aegypti (weighted k-function) in the Maynas and Tupac Amaru neighborhoods of Iquitos, Peru.
Spatial clustering distance (meters) | |||||
Pupae | Adult males & females | ||||
Neighborhood | Survey | Presence | Abundance | Presence | Abundance |
Maynas | 1 | NS* | NS | 1** | 1 |
2 | NS | NS | 20 | 20 | |
3 | 10 | NS | 20 | 10 | |
4 | 20 | NS | 10 | 20 | |
5 | NS | NS | 20 | 30 | |
6 | 20 | 20 | 20 | 10 | |
7 | NS | NS | 1 | 1 | |
8 | NS | NS | 40 | 40 | |
9 | 20 | NS | 20 | 30 | |
Average (SD) | 17.5 (5.0) | 20 | 17.8 (10.6) | 18.9 (12.4) | |
Tupac Amaru | 1 | NS | NS | 1 | 1 |
2 | 10 | NS | 10 | 10 | |
3 | 10 | 1 | 10 | 20 | |
4 | 20 | NS | 30 | 20 | |
5 | NS | 10 | 20 | 30 | |
6 | 20 | 10 | 10 | 1 | |
7 | NS | NS | 20 | 10 | |
8 | 20 | NS | 30 | 40 | |
9 | NS | NS | 10 | 20 | |
Average (SD) | 16.0 (5.5) | 8.3 (2.9) | 16.1 (9.3) | 17.8 (11.8) | |
Overall average (SD) | 16.6 (5.0) | 10.3 (7.8) | 16.3 (10.7) | 17.4 (12.9) |
*NS indicates that the observed pattern was not statistically significantly different than random.
**A distance below 5 meters means that clustering occurred only at the household where collections were performed (average house width in Iquitos is ∼4.6 m).