**3. Results**

#### **3.1 Collection cycles**

When comparing the seven groups of containers surveyed, there is no significant difference between the number of containers found in the peri (H = 2399; p = 0.6628) and intradomicile (H = 1275; p = 0.8656) of residences. As well as there is no difference between the medians of vessels surveyed among the five zones throughout the study period (H = 2026; p = 0.7309).

The western zone has the highest percentage of containers in the storage group, with 637 (27.33%), of these 436 (68.44%) have been found in the peridomicile and 201 (31.55%) in intradomicile. It followed the Central zone with 530 (22.74%), North zone with 444 (19.05%) and South zone with 397 (17.03%) containers. The lowest percentage of inspected containers has been registered in the eastern zone with 322 (13.81%), of these 268 (83.23%), belongs to the peridomicile and 54 (16.77%) in the intradomicile.

When analyzing the presence of immatures in the positive containers of the seven groups, a difference is observed between the medians of *A. aegypti* in these groups (H = 30.74; p < 0.0001). According to the Dunn's test the storage group has predominant in relation to the vessels group (p < 0.01), construction material (p < 0.01), fixed (p < 0.01) and others (p < 0.01) (**Figure 1**).

The storage group has the largest number of containers surveyed in all study areas, with 2330 (55.17%) containers, of which 1653 (70.95%) have been found in the peridomicile and 677 (29.05%) in intradomiciliary. Followed by the bottle group with 1028 (24.34%), tires with 244 (5.77%) and others with 232 (5.49%). The lesser containers belong to the group pots 145 (3.43%), building material with 126 (2.98%) and fixed 118 (2.79%).

Positive containers exposed to the sun/shade showed a difference between the medians (H = 12.15, p = 0.0023). The containers have been positioned in the shade predominantly in relation to those in the shade (p < 0.01) – Dunn's test (**Figure 2**).

#### **Figure 1.**

*Positive containers in the five collection zones in the municipality of Caxias-Maranhão, from January to December, 2016. Subtitle. TR1: Vessels, TR2: Bottles, TR3: Tires, TR4: Building Materials, TR5: Storage, Tr6: Fixed, TR7: Others.*

**113**

**Figure 4.**

*Characterization of the Proliferation Sites of* Aedes aegypti *(Diptera: Culicidae)…*

When the exposure of the containers to the environment has been analyzed, it is observed in the rainy season predominance of immatures placed in containers in the sun with 1365 (75.74%) and shade with 437 (24.25%). In the dry season, the largest number of specimens is found in the shade with 602 (51.89%) and sun with 558 (48.10%). No immature is found in partially covered containers for the storage

When analyzing the positive containers with presence or absence of organic matter, a greater quantity of specimens in containers with organic substrates, have been registered in the rainy and dray seasons 1629 (90.55%) and 869 (74.91%), respectively. For containers without the presence of organic matter has been registered in the rainy season 170 (9.44%) immature and 291 (25.08%) in the dry season

The containers with height between 51 and 100 cm recorded the highest number of *A. aegypti* in both rainy and dry seasons, with 1299 (72%) and 781 (67%), respectively. Following the containers with height between 0 and 50 cm, in the rainy season with 431 (23%) specimens and 238 (21%) in the dry season.

*Place of exposure of positive containers in the five collection zones from January to December 2016.*

*Percentage of* Aedes aegypti *found in containers exposed to the environment during the rainy and dry seasons,* 

*Number of* Aedes aegypti *found in containers with presence or absence of organic matter during the rainy and* 

*DOI: http://dx.doi.org/10.5772/intechopen.89959*

group (**Figure 3**).

(**Figure 4**).

**Figure 2.**

**Figure 3.**

*from January to December 2016.*

*dry seasons, from January to December, 2016.*

*Characterization of the Proliferation Sites of* Aedes aegypti *(Diptera: Culicidae)… DOI: http://dx.doi.org/10.5772/intechopen.89959*

When the exposure of the containers to the environment has been analyzed, it is observed in the rainy season predominance of immatures placed in containers in the sun with 1365 (75.74%) and shade with 437 (24.25%). In the dry season, the largest number of specimens is found in the shade with 602 (51.89%) and sun with 558 (48.10%). No immature is found in partially covered containers for the storage group (**Figure 3**).

When analyzing the positive containers with presence or absence of organic matter, a greater quantity of specimens in containers with organic substrates, have been registered in the rainy and dray seasons 1629 (90.55%) and 869 (74.91%), respectively. For containers without the presence of organic matter has been registered in the rainy season 170 (9.44%) immature and 291 (25.08%) in the dry season (**Figure 4**).

The containers with height between 51 and 100 cm recorded the highest number of *A. aegypti* in both rainy and dry seasons, with 1299 (72%) and 781 (67%), respectively. Following the containers with height between 0 and 50 cm, in the rainy season with 431 (23%) specimens and 238 (21%) in the dry season.

**Figure 2.**

*Life Cycle and Development of Diptera*

asterisks (\*\*\*) adopted (26).

(16.77%) in the intradomicile.

(2.98%) and fixed 118 (2.79%).

throughout the study period (H = 2026; p = 0.7309).

(p < 0.01), fixed (p < 0.01) and others (p < 0.01) (**Figure 1**).

**3. Results**

**3.1 Collection cycles**

mounted on Excel spreadsheets (2013) and Graph Pad Prism version 5.03 (La Jolla CA, USA), and from these obtained the percentages for the elaboration of tables and figures. The values of p, significant at the mentioned level (5%), have been highlighted in the text, tables and graphs with an asterisk (\*). For p ≤ 0.05 an asterisk (\*) has been used, for p ≤ 0.01 two asterisks (\*\*) have been used and for p ≤ 0.0001 three

When comparing the seven groups of containers surveyed, there is no significant difference between the number of containers found in the peri (H = 2399; p = 0.6628) and intradomicile (H = 1275; p = 0.8656) of residences. As well as there is no difference between the medians of vessels surveyed among the five zones

The western zone has the highest percentage of containers in the storage group, with 637 (27.33%), of these 436 (68.44%) have been found in the peridomicile and 201 (31.55%) in intradomicile. It followed the Central zone with 530 (22.74%), North zone with 444 (19.05%) and South zone with 397 (17.03%) containers. The lowest percentage of inspected containers has been registered in the eastern zone with 322 (13.81%), of these 268 (83.23%), belongs to the peridomicile and 54

When analyzing the presence of immatures in the positive containers of the seven groups, a difference is observed between the medians of *A. aegypti* in these groups (H = 30.74; p < 0.0001). According to the Dunn's test the storage group has predominant in relation to the vessels group (p < 0.01), construction material

The storage group has the largest number of containers surveyed in all study areas, with 2330 (55.17%) containers, of which 1653 (70.95%) have been found in the peridomicile and 677 (29.05%) in intradomiciliary. Followed by the bottle group with 1028 (24.34%), tires with 244 (5.77%) and others with 232 (5.49%). The lesser containers belong to the group pots 145 (3.43%), building material with 126

Positive containers exposed to the sun/shade showed a difference between the medians (H = 12.15, p = 0.0023). The containers have been positioned in the shade predominantly in relation to those in the shade (p < 0.01) – Dunn's test (**Figure 2**).

*Positive containers in the five collection zones in the municipality of Caxias-Maranhão, from January to December, 2016. Subtitle. TR1: Vessels, TR2: Bottles, TR3: Tires, TR4: Building Materials, TR5: Storage, Tr6:* 

**112**

**Figure 1.**

*Fixed, TR7: Others.*

*Place of exposure of positive containers in the five collection zones from January to December 2016.*


#### **Figure 3.**

*Percentage of* Aedes aegypti *found in containers exposed to the environment during the rainy and dry seasons, from January to December 2016.*

#### **Figure 4.**

*Number of* Aedes aegypti *found in containers with presence or absence of organic matter during the rainy and dry seasons, from January to December, 2016.*

#### **Figure 5.**

*Number of* Aedes aegypti *distributed in containers with height between 0 and 100 cm, from January to December 2016.*

The containers above 100 cm registered 87 (5%) immature in the rainy season and 141 (12%) in the dry season (**Figure 5**).
