DIFFERENT SPATIAL DISTRIBUTION OF AEDES AEGYPTI AND AEDES ALBOPICTUS ALONG AN URBAN–RURAL GRADIENT AND THE RELATING ENVIRONMENTAL FACTORS EXAMINED IN THREE VILLAGES IN NORTHERN THAILAND

AbstractThe study was undertaken in South Andaman district, comprising three tehsils, viz. Port Blair, Ferrargunj and Little Andaman Tehsils, respectively. Intensive pupal infestation surveys were carried out along the National Highway (NH 223), the main passenger and trade route, referred to as Great Andaman Trunk Road. Sampling locations at every 3 km were geo-referenced with global positioning system unit. A total of 17314 water collections were examined from 29 locations across the South Andaman district, among which 1021 (5.9%) were colonized by immature stages of Aedes albopictus, Aedes aegypti and other mosquito species. Ae. aegypti were found in 12 locations, showing higher infestation in the densely built Aberdeen Bazaar. Breeding populations of Ae. albopictus were observed in 27 sampling locations. Both the species were not recorded in two Northern localities. In the areas where both the species are present, they were often found in the same developmental sites, suggesting convergent habitat selection. The most frequently encountered man-made, artificial and natural developmental sites were fixed cement tanks, plastic drums, plastic cans, metal drums, metal pots, discarded tires, coconut shells, leaf axils and tree holes. Ae. aegypti and Ae. albopictus were observed in varying proportions in Port Blair and Ferrargunj Tehsils, while the former species appeared to be absent in Little Andaman. This study elucidates the spatial distribution of Ae. aegypti and Ae. albopictus with preponderance of the latter species, pointing towards arboviral transmission and assumes public health importance in South Andaman district, endemic for dengue.

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The ecology of Aedes aegypti and Aedes albopictus larvae habitat in coastal areas of South Sulawesi, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d211025 ◽

2020 ◽

Vol 21 (10) ◽

Author(s):

ARINI RATNASARI ◽

ARIF RAHMAN JABAL ◽

NUR RAHMA ◽

SRI NUR RAHMI ◽

MILA KARMILA ◽

...

Keyword(s):

Spatial Distribution ◽

Aedes Aegypti ◽

Aedes Albopictus ◽

Coastal Areas ◽

Measured Data ◽

Habitat Characteristics ◽

Physical Factors ◽

South Sulawesi ◽

Sampling Locations ◽

Water Ph

Abstract. Ratnasari A, Jabal AR, Rahma N, Rahmi SN, Karmila M, Wahid I, 2020. The ecology of Aedes aegypti and Aedes albopictus larvae habitat in coastal areas of South Sulawesi, Indonesia. Biodiversitas 21: 4648-4654. Aedes aegypti and Aedes albopictus are arbovirus vectors that can adapt to various environmental conditions. This study aimed to analyze the spatial distribution, habitat characteristics, and the correlation between the number of Ae. aegypti and Ae. albopictus larvae with physical factors. The larvae were collected from seven sampling locations along the coast of South Sulawesi at a distance of 100 m, 500 m, 1 km, and 2 km from the coastline. The collected samples and their water habitat were examined in the Entomology Laboratory of the Faculty of Medicine, Hasanuddin University, South Sulawesi, Indonesia. The number of larvae was counted (3182 larvae of both kinds), and the pH and salinity of the water were measured. Data analysis was performed with IBM SPSS version 24 and spatial distribution of larvae was mapped with ArcGIS version 10.5. We found that the highest number of Ae. aegypti was at a distance of 100 m from the coastline (73.34%), while Ae. albopictus was at 500 m (34.14%). Most of the mosquitos laid their eggs on discarded boats as observed in the Kurri Caddi coast (31.2%). The observed ranges of pH, salinity, and temperature of larvae habitat were 5.5-6.4, 5-2 ppt, and 28-31°C, respectively. The total number of larvae had a significant correlation p<0.05 with the physical factors, i.e., distance from the coastline, water pH, temperature, and kind of water storages (containers). This study showed that physical factors in the coastal area significantly influenced the habitat characteristics and the abundance of Ae. aegypti and Ae. albopictus larvae.

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An integrated approach for the assessment of the Aedes aegypti and Aedes albopictus global spatial distribution, and determination of the zones susceptible to the development of Zika virus

Acta Tropica ◽

10.1016/j.actatropica.2017.01.015 ◽

2017 ◽

Vol 168 ◽

pp. 80-90 ◽

Cited By ~ 20

Author(s):

José Santos ◽

Bruno M. Meneses

Keyword(s):

Spatial Distribution ◽

Aedes Aegypti ◽

Aedes Albopictus ◽

Zika Virus ◽

Integrated Approach

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Estudo de áreas e depósitos preferenciais de Aedes albopictus (Skuse, 1894) e Aedes aegypti (Linnaeus, 1762) no Município de Paracambi – Rio de Janeiro, Brasil

EntomoBrasilis ◽

10.12741/ebrasilis.v1i3.30 ◽

2008 ◽

Vol 1 (3) ◽

pp. 63-68 ◽

Cited By ~ 3

Author(s):

Vanessa Aparecida Ribeiro Canela Soares ◽

William Costa Rodrigues ◽

Marise Maleck de Oliveira Cabral

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Rural Areas ◽

Urban Areas ◽

Rio De Janeiro ◽

Hollow Trees ◽

Urban Rural ◽

Urban And Rural Areas ◽

Water Tanks ◽

Relationship Of

Resumo. A presença de Aedes albopictus e Aedes aegypti em área urbana representa um risco potencial do inter-relacionamento dessa espécie de mosquito com a população. Este estudo teve como objetivo avaliar a presença do Ae. albopictus (S.) e de Ae. aegypti (L.) no município de Paracambi, Estado do Rio de Janeiro, Brasil. As amostras foram obtidas através de coletas das formas imaturas em depósitos e/ou criadouros (caixas d’água, cisternas, tanques, ocos de árvores, lixo, pneus, etc) em três áreas do município (urbana, rural e área de transição) no período de 12 meses. Os resultados mostraram que Ae. albopictus distribuiu-se igualmente nas áreas urbanas e rurais. A área urbana e a área de transição apresentaram uma maior positividade para Ae. aegypti. Os produtos de descartes, caracterizados por depósito de letra I = outros (artificiais especiais), foram os preferenciais para ambas as espécies de mosquito. Study of the preferred areas and deposits of Aedes albopictus (Skuse, 1894) and Aedes aegypti (Linnaeus, 1762) in the Paracambi city, Rio de Janeiro, Brazil. Abstract. The presence of Aedes albopictus (S.) and Aedes aegypti (L.) in urban areas represents a potential risk of inter-relationship of this species of mosquito with the population. This study aimed to evaluate the presence of Ae. albopictus and Ae. aegypti in the Paracambi city, Rio de Janeiro State, Brazil. Samples were obtained from collections of immature forms in deposits (water tanks, cisterns, tanks, hollow trees, trash, tires, etc.) in three areas of the city (urban, rural and the transition area) in the last 12 months. The results showed that Ae. albopictus is also distributed in urban and rural areas. The urban area and the area of transition had a higher positive for Ae. aegypti. They refused material that is the distinguished mark of letter I = other (artificial special) deposit has been preferred for both species of mosquito.

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Distribution of Aedes aegypti and Aedes albopictus in different eco zones of Thiruvananthapuram city with special reference to dengue viremia in humans

ENTOMON ◽

10.33307/entomon.v43i4.402 ◽

2018 ◽

Vol 43 (4) ◽

pp. 223-230

Author(s):

S. Sunil Kumar ◽

D.A. Evans ◽

K. Muthulakshmi ◽

T. DilipKumar ◽

R. Heera Pillai ◽

...

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Dengue Shock Syndrome ◽

Single Step ◽

Equal Distribution ◽

Distribution Study ◽

Urban Zone ◽

High Prevalence ◽

Vector Management ◽

Efficient Vector

Mosquito index study of three ecologically different ecozones of the Thiruvananthapuram district, Kerala showed sharp difference on the proportionate distribution of Aedes aegypti and Aedes albopictus. Human dengue viremia (HDV) was very high in those ecozones where A.aegypti density was high and HDV was low where A.albopictus was high. In a coastal zone of Thiruvananthapuram city, A. aegypti was the most abundant vector and in a hilly, arid suburban zone, A.albopictus was the abundant vector. In the urban zone both species of mosquitoes showed equal distribution. Study on the circulating serotypes in the serum of HDV by Single step single tube Multiplex PCR showed all the four serotypes viz DENV1, DENV2, DENV3 and DENV4 in patients of Thiruvananthapuram city, which indicated the possibility of Dengue Shock Syndrome, unless there is efficient vector management. Among the four dengue serotypes, Type 1 was the most abundant virus. Abundance of microhabitats in Thiruvananthapuram city, which support A. aegypti may be the reason for high prevalence of dengue fever in the urban zone.

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