Influence of Plant Abundance on Nectar Feeding by Aedes aegypti (Diptera: Culicidae) in Southern Mexico

The study of fitness costs of insecticide resistance mutations in Aedes aegypti has generally been focused on life history parameters such as fecundity, mortality, and energy reserves. In this study we sought to investigate whether trade-offs might also exist between insecticide resistance and other abiotic stress resistance parameters. We evaluated the effects of the selection for permethrin resistance specifically on larval salinity and thermal tolerance. A population of A. aegypti originally from Southern Mexico was split into two strains, one selected for permethrin resistance and the other not. Larvae were reared at different salinities, and the fourth instar larvae were subjected to acute thermal stress; then, survival to both stresses was compared between strains. Contrary to our predictions, we found that insecticide resistance correlated with significantly enhanced larval thermotolerance. We found no clear difference in salinity tolerance between strains. This result suggests that insecticide resistance does not necessarily carry trade-offs in all traits affecting fitness and that successful insecticide resistance management strategies must account for genetic associations between insecticide resistance and abiotic stress resistance, as well as traditional life history parameters.

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MECHANISMS OF INSECTICIDE RESISTANCE IN FIELD POPULATIONS OF AEDES AEGYPTI (L.) FROM QUINTANA ROO, SOUTHERN MEXICO

Journal of the American Mosquito Control Association ◽

10.2987/8756-971x(2006)22[672:moirif]2.0.co;2 ◽

2006 ◽

Vol 22 (4) ◽

pp. 672-677 ◽

Cited By ~ 43

Author(s):

ADRIANA E. FLORES ◽

JAIME SALOMON GRAJALES ◽

ILDEFONSO FERNANDEZ SALAS ◽

GUSTAVO PONCE GARCIA ◽

MA. HAYDEE LOAIZA BECERRA ◽

...

Keyword(s):

Aedes Aegypti ◽

Insecticide Resistance ◽

Quintana Roo ◽

Southern Mexico

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Which green way: description of the intervention for mobilising against Aedes aegypti under difficult security conditions in southern Mexico

BMC Public Health ◽

10.1186/s12889-017-4300-1 ◽

2017 ◽

Vol 17 (S1) ◽

Cited By ~ 13

Author(s):

Arcadio Morales-Perez ◽

Elizabeth Nava-Aguilera ◽

José Legorreta-Soberanis ◽

Sergio Paredes-Solís ◽

Alejandro Balanzar-Martínez ◽

...

Keyword(s):

Aedes Aegypti ◽

Southern Mexico

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The location of floral nectar sources by mosquitoes: an advanced bioassay for volatile plant odours and initial studies with Aedes aegypti (L.) (Diptera: Culicidae)

Bulletin of Entomological Research ◽

10.1017/s0007485300015492 ◽

1988 ◽

Vol 78 (4) ◽

pp. 641-650 ◽

Cited By ~ 23

Author(s):

P. C. Jepson ◽

T. P. Healy

Keyword(s):

Aedes Aegypti ◽

Feeding Behaviour ◽

Floral Nectar ◽

Behavioural Activity ◽

Nectar Feeding ◽

Nectar Sources ◽

Nectar Source ◽

Plant Odours ◽

Ray Florets ◽

Light:Dark Cycle

AbstractThe development and testing of a bioassay system to evaluate the potency of floral odours as mediators of long-range floral nectar source location by mosquitoes are described. The bioassay is quantitative and behaviourally discriminating, upwind flying and landing acting as indices of behavioural activity over the 24-h light:dark cycle. In initial tests, the responses of Aedes aegypti (L.) to the flowers and floral odours of ox-eye daisy (Leucanthemum vulgare) were investigated. A. aegypti exhibited a biphasic diel cycle of nectar-feeding behaviour and landed on modified flowers that retained either their disc or ray florets. Most significantly, the mosquitoes responded in a similar way to the odour of L. vulgare in the absence of visual stimuli or nutritional cues. They did not respond to solvent extracts of ox-eye daisy flowers.

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Gender-related family head schooling and Aedes aegypti larval breeding risk in Southern Mexico

Salud Pública de México ◽

10.1590/s0036-36342002000300007 ◽

2002 ◽

Vol 44 (3) ◽

pp. 237-242 ◽

Cited By ~ 18

Author(s):

Rogelio Danis-Lozano ◽

Mario H Rodríguez ◽

Mauricio Hernández-Avila

Keyword(s):

Aedes Aegypti ◽

Southern Mexico ◽

Family Head ◽

Related Family

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Population Dynamics of Aedes aegypti and Aedes albopictus in Two Rural Villages in Southern Mexico: Baseline Data for an Evaluation of the Sterile Insect Technique

Insects ◽

10.3390/insects12010058 ◽

2021 ◽

Vol 12 (1) ◽

pp. 58

Author(s):

Carlos F. Marina ◽

J. Guillermo Bond ◽

Kenia Hernández-Arriaga ◽

Javier Valle ◽

Armando Ulloa ◽

...

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Rainy Season ◽

Sterile Insect Technique ◽

Dominant Species ◽

Dry Season ◽

Population Fluctuations ◽

Southern Mexico ◽

Rural Villages ◽

The Village

Indoor and outdoor ovitraps were placed in 15 randomly selected houses in two rural villages in Chiapas, southern Mexico. In addition, ovitraps were placed in five transects surrounding each village, with three traps per transect, one at the edge, one at 50 m, and another at 100 m from the edge of the village. All traps were inspected weekly. A transect with eight traps along a road between the two villages was also included. Population fluctuations of Aedes aegypti and Ae. albopictus were examined during 2016–2018 by counting egg numbers. A higher number of Aedes spp. eggs was recorded at Hidalgo village with 257,712 eggs (60.9%), of which 58.1% were present in outdoor ovitraps and 41.9% in indoor ovitraps, compared with 165,623 eggs (39.1%) collected in the village of Río Florido, 49.0% in outdoor and 51.0% in indoor ovitraps. A total of 84,047 eggs was collected from ovitraps placed along transects around Río Florido, compared to 67,542 eggs recorded from transects around Hidalgo. Fluctuations in egg counts were associated with annual variation in precipitation, with 2.3 to 3.2-fold more eggs collected from ovitraps placed in houses and 4.8 to 5.1-fold more eggs in ovitraps from the surrounding transects during the rainy season than in the dry season, respectively. Aedes aegypti was the dominant species during the dry season and at the start of the rainy season in both villages. Aedes albopictus populations were lower for most of the dry season, but increased during the rainy season and predominated at the end of the rainy season in both villages. Aedes albopictus was also the dominant species in the zones surrounding both villages. The numbers of eggs collected from intradomiciliary ovitraps were strongly correlated with the numbers of eggs in peridomiciliary ovitraps in both Río Florido (R2adj = 0.92) and Hidalgo (R2adj = 0.94), suggesting that peridomiciliary sampling could provide an accurate estimate of intradomiciliary oviposition by Aedes spp. in future studies in these villages. We conclude that the feasibility of sterile insect technique (SIT)-based program of vector control could be evaluated in the isolated Ae. aegypti populations in the rural villages of our baseline study.

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Field Effectiveness of Drones to Identify Potential Aedes aegypti Breeding Sites in Household Environments from Tapachula, a Dengue-Endemic City in Southern Mexico

Insects ◽

10.3390/insects12080663 ◽

2021 ◽

Vol 12 (8) ◽

pp. 663

Author(s):

Kenia Mayela Valdez-Delgado ◽

David A. Moo-Llanes ◽

Rogelio Danis-Lozano ◽

Luis Alberto Cisneros-Vázquez ◽

Adriana E. Flores-Suarez ◽

...

Keyword(s):

Aedes Aegypti ◽

Vector Control ◽

Rural Areas ◽

Aerial Images ◽

Ground Field ◽

Southern Mexico ◽

Breeding Sites ◽

Larval Habitats ◽

Control Programs ◽

Urban And Rural Areas

Aedes aegypti control programs require more sensitive tools in order to survey domestic and peridomestic larval habitats for dengue and other arbovirus prevention areas. As a consequence of the COVID-19 pandemic, field technicians have faced a new occupational hazard during their work activities in dengue surveillance and control. Safer strategies to monitor larval populations, in addition to minimum householder contact, are undoubtedly urgently needed. Drones can be part of the solution in urban and rural areas that are dengue-endemic. Throughout this study, the proportion of larvae breeding sites found in the roofs and backyards of houses were assessed using drone images. Concurrently, the traditional ground field technician’s surveillance was utilized to sample the same house groups. The results were analyzed in order to compare the effectiveness of both field surveillance approaches. Aerial images of 216 houses from El Vergel village in Tapachula, Chiapas, Mexico, at a height of 30 m, were obtained using a drone. Each household was sampled indoors and outdoors by vector control personnel targeting all the containers that potentially served as Aedes aegypti breeding sites. The main results were that the drone could find 1 container per 2.8 found by ground surveillance; however, containers that were inaccessible by technicians in roofs and backyards, such as plastic buckets and tubs, disposable plastic containers and flowerpots were more often detected by drones than traditional ground surveillance. This new technological approach would undoubtedly improve the surveillance of Aedes aegypti in household environments, and better vector control activities would therefore be achieved in dengue-endemic countries.

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