scholarly journals Resistance Level of Mosquito Species (Diptera: Culicidae) from Shandong Province, China

2015 ◽  
Vol 7 ◽  
pp. IJIS.S24232 ◽  
Author(s):  
Hong-Mei Liu ◽  
Pei-Pei Yang ◽  
Peng Cheng ◽  
Hai-Fang Wang ◽  
Li-Juan Liu ◽  
...  
Keyword(s):  
Species Composition ◽  
Mosquito Species ◽  
Habitat Type ◽  
Shandong Province ◽  
Larval Abundance ◽  
Mosquito Larvae ◽  
Mosquito Vector ◽  
Habitat Types ◽  
Resistance Level ◽  
Pipiens Pallens

This study describes the aquatic habitats, species composition, and the insecticide resistance level of the mosquito Culex pipiens pallens in Shandong Province, China. A cross-sectional survey of mosquito larval habitats was conducted from May to November 2014 to determine the species composition and larval abundance. Larvae were collected using the standard dipping technique, and a total of four habitat types were sampled. The fourth instar larvae of Cx. pipiens pallens collected in each habitat type were tested for resistance to five insecticides according to a WHO bioassay. A total of 7,281 mosquito larvae were collected, of which 399 (5.48%) were categorized as Anopheles mosquito larvae ( An. sinensis), 6636 (91.14%) as culicine larvae ( Cx. pipiens pallens, Cx. tritaeniorhynchus, Cx. halifaxii, and Cx. bitaeniorhynchus), 213 (2.93%) as Armigeres larvae, and 33 (0.45%) as Aedes larvae ( Aedes albopictus). In addition, a total of 1,149 mosquito pupae were collected. Culex larvae were distributed in all habitats investigated. Tukeys HSD analysis showed that roadside drainages were the most productive habitat type for Culex larvae. Armigeres species were found only in drains, Aedes only in water tanks, and Anopheles in water that was comparatively clear and rich in emergent plants. Bioassay showed that the maximum resistance level of Cx. pipiens pallens was to deltamethrin, while it was lowest to plifenate. The productivity of various mosquitoes in different habitat types is very heterogeneous. It is particularly important to modify human activity and the environment to achieve effective mosquito vector control. For effective larval control, the type of habitat should be considered, and the most productive habitat type should be given priority in mosquito abatement programs.

scholarly journals Do the assemblages of benthic macroinvertebrates in nearshore waters of Western Australia vary among habitat types, zones and seasons?

2005 ◽  
Vol 85 (2) ◽  
pp. 217-232 ◽  
Author(s):  
M.D. Wildsmith ◽  
I.C. Potter ◽  
F.J. Valesini ◽  
M.E. Platell
Keyword(s):  
Species Composition ◽  
Benthic Macroinvertebrates ◽  
Habitat Type ◽  
Abundant Species ◽  
Subtidal Zone ◽  
Habitat Types ◽  
Environmental Characteristics ◽  
Deposit Feeding ◽  
Number Of Individuals

Benthic macroinvertebrates were sampled seasonally in the subtidal and upper and lower swash zones at two sites in each of six nearshore habitat types on the lower west coast of Australia. The habitat types, which differed mainly in the extent of their exposure to wave activity and whether sea grass and/or nearshore reefs were present, had been distinguished quantitatively using values for a suite of seven statistically-selected enduring environmental characteristics (Valesini et al., 2003). The core samples yielded 121 species representing eight phyla, among which the Polychaeta, Malacostraca and Bivalvia were the most speciose classes, contributing ∼38, 23 and 10%, respectively, to the total number of individuals. The total number of species and mean density of macroinvertebrates at the most protected habitat type (1), i.e. 70 and 209·2 individuals 0·1 m−2, respectively, were far greater than in any other habitat type. Habitat type influenced species composition to a greater extent than either zone or season. Furthermore, the extents of the differences among the species compositions of the six habitat types statistically matched the extents of the differences among the values for the suite of enduring environmental characteristics that distinguished each of those habitat types. Overall, the species composition at habitat type 1 was the most distinct, containing five abundant species of polychaetes that were adapted to deposit-feeding in calm waters with high levels of organic material and which were rare in all other habitat types. In contrast, the fauna at the most exposed habitat type was characterized by four crustacean species and a species of bivalve and polychaete, whose mobility and tough external surface facilitated their survival and feeding in turbulent waters. The zonal differences in faunal compositions among habitat types were greatest in the case of the subtidal zone. The faunal compositions differed among zones and seasons only at the most protected habitat type.

Evaluation of species composition and seasonal dynamics of mosquito larvae in the Košice Basin during 2010 and 2011

Biologia ◽  
2013 ◽  
Vol 68 (2) ◽  
Author(s):  
Eva Bocková ◽  
Alica Kočišová ◽  
Helena Hlavatá
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Seasonal Dynamics ◽  
Culex Pipiens ◽  
Mosquito Species ◽  
Mosquito Larvae ◽  
Aedes Vexans ◽  
Anopheles Maculipennis

AbstractIn six sites in the Košice Basin we collected 17,520 larvae of 15 mosquito species during the seasons (April–August) of 2010 and 2011. They were: Aedes vexans (Meigen, 1830), Ae. cinereus (Meigen, 1818) [or Ae. rossicus (Dolbeskin, Gorickaja & Mitrofanova, 1930], Ochlerotatus geniculatus (Olivier, 1791), Oc. refiki (Medschid, 1928), Oc. rusticus (Rossi, 1790), Oc. sticticus (Meigen, 1838), Oc. punctor (Kirby, 1837), Oc. cataphylla (Dyar, 1916), Oc. cantans (Meigen, 1818)[or Oc. annulipes (Meigen, 1830)], Oc. communis (De Geer, 1776), Oc. flavescens (Müller, 1764), Oc. leucomelas (Meigen, 1804), Culiseta annulata (Schrank, 1776), Culex pipiens (L., 1758) [or Cx. torrentium (Martini, 1925)] and Anopheles maculipennis s.l. The objective of the present research was to identify the mosquito larvae species diversity and compare their distribution and density in urban and suburban localities of the monitored territory.

scholarly journals Influence of Habitat Types on Diversity and Species Composition of Urban Flora—A Case Study in Serbia

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2572
Author(s):  
Milan Glišić ◽  
Ksenija Jakovljević ◽  
Dmitar Lakušić ◽  
Jasmina Šinžar-Sekulić ◽  
Snežana Vukojičić ◽  
...  
Keyword(s):  
Species Composition ◽  
Vascular Plant ◽  
Habitat Type ◽  
Floristic Composition ◽  
Life Forms ◽  
Urban Habitat ◽  
Residential Areas ◽  
Gamma Diversity ◽  
Habitat Types ◽  
Diagnostic Species

The aim of this study was to investigate the floristic composition and diversity of seven urban habitat types in 24 Serbian cities with different climatic affiliation. In each of the 24 cities, we selected 1 ha plots representing a habitat from one of the following groups: square, boulevard, residential area with compact and with open building pattern, city park, and sites with early and mid-succession vegetation stages. All vascular plant species that occur spontaneously in these plots were observed. Data on the main climatic characteristics were collected for each plot, and data on the life forms were obtained for each species recorded. Diagnostic species were identified for each habitat type analyzed, and alpha, beta and gamma diversity were calculated. A total of 674 taxa were recorded in the studied area. Significant differences were observed in habitats by diagnostic species and by life form representation. The lowest alpha and gamma diversity and the dominance of therophytes were observed in habitat types with intensive anthropogenic impact, whereas the highest number was recorded in mid-successional sites and residential areas with a compact building pattern. The analysis showed that habitat type influences species composition much more than climate.

scholarly journals A Qualitative Evidence of the Breeding Sites of Anopheles arabiensis Patton (Diptera: Culicidae) in and Around Kassala Town, Eastern Sudan

2016 ◽  
Vol 8 ◽  
pp. IJIS.S40071 ◽  
Author(s):  
Asma Mahmoud Hamza ◽  
El Amin El Rayah
Keyword(s):  
Anopheles Arabiensis ◽  
Habitat Type ◽  
Larval Habitat ◽  
Mosquito Larvae ◽  
Habitat Types ◽  
Breeding Sites ◽  
Water Pipes ◽  
Control Programs ◽  
Qualitative Evidence ◽  
Eastern Sudan

Anopheles arabiensis Patton (Diptera: Culicidae) is considered the most efficient malaria vector in eastern Sudan. This study aims to characterize the breeding sites of An. arabiensis throughout the year in and around Kassala town, eastern Sudan. Diverse larval habitat types were visited and characterized based on the habitat type and chemical composition. Mosquito larvae were found in many diverse habitats. During the rainy season, rain pools and water bodies created by the seasonal Gash River serve as the main breeding sites. In the dry season, irrigation canals, seepage from water pipes, neglected wells, artificial containers, and man-made ditches serve as the main breeding sites. Breeding water showed a pH of 7.9 and a low concentration of the total dissolved salts. The results of this study may be considered in planning and implementing larval control programs in the area.

Species composition of mosquitoes (Diptera: Culicidae) in relation to climate conditions in South-Eastern Slovakia

Biologia ◽  
2016 ◽  
Vol 71 (2) ◽  
Author(s):  
Eva Bocková ◽  
Alica Kočišová
Keyword(s):  
Species Composition ◽  
Mosquito Species ◽  
Mosquito Larvae ◽  
Climate Conditions ◽  
South Eastern

AbstractIn years 2010–2013, we collected mosquito larvae and adults at selected locations in Eastern Slovakia. We have identified 22 mosquito species belonging to 6 genera:

scholarly journals Diversity and species composition of fruit flies (Diptera: Tephritidae) in Lombok Island, Indonesia

2021 ◽  
Vol 22 (10) ◽  
Author(s):  
Syarron Hudiwaku ◽  
Toto Himawan ◽  
Akhmad Rizali
Keyword(s):  
Species Composition ◽  
Tropical Rainforest ◽  
Habitat Type ◽  
Fruit Production ◽  
Fruit Flies ◽  
Bactrocera Dorsalis ◽  
Habitat Types ◽  
Horticultural Crops ◽  
Bactrocera Carambolae ◽  
Lombok Island

Abstract. Hudiwaku S, Himawan T, Rizali A. 2021. Diversity and species composition of fruit flies (Diptera: Tephritidae) in Lombok Island, Indonesia. Biodiversitas 22: 4608-4616. Fruit flies (Diptera: Tephritidae) are pests of several horticultural crops that can reduce the quality and quantity of fruit production. Information on fruit flies in Lombok Island, Indonesia, is still limited. However, it is predicted to have a high diversity of fruit flies because this island belongs to the Wallacea region. The aims of this research was to study the diversity and species composition of fruit flies in different habitat types in Lombok Island. The research was carried out on two habitat types, i.e., tropical rainforest and orchard with each habitat type consisted of three different sites that located spread across Lombok Island as replication. The research was carried out on two habitat types, i.e., tropical rainforest and orchard, with each habitat type consisted of three different sites spread across Lombok Island as replication. A sampling of fruit flies was conducted using parapheromone traps from March to June 2020. Twenty-two species and 210,267 individual fruit flies were collected from all locations during the study period. The most dominant species were Bactrocera carambolae, Bactrocera limbifera, Zeugodacus caudatus, and Bactrocera dorsalis. Based on the ANOVA, habitat types significantly affected the abundance but not the species richness of fruit flies. The visualization results obtained from the NMDS ordination indicated a difference in the species composition of fruit flies between the two habitats. In conclusion, habitat types are an essential factor in shaping the community of fruit flies in Lombok Island.

scholarly journals Habitat and Seasonality Affect Mosquito Community Composition in the West Region of Cameroon

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 312 ◽  
Author(s):  
Marie Paul Audrey Mayi ◽  
Roland Bamou ◽  
Borel Djiappi-Tchamen ◽  
Albin Fontaine ◽  
Claire L. Jeffries ◽  
...  
Keyword(s):  
Species Richness ◽  
Urban Area ◽  
Urban Areas ◽  
Mosquito Species ◽  
Habitat Type ◽  
Habitat Types ◽  
The West ◽  
Field Surveys ◽  
West Region ◽  
Dry Seasons

To identify potential sylvatic, urban and bridge-vectors that can be involved in current or future virus spillover from wild to more urbanised areas, entomological field surveys were conducted in rural, peri-urban and urban areas spanning the rainy and dry seasons in western Cameroon. A total of 2650 mosquitoes belonging to 37 species and eight genera were collected. Mosquito species richness was significantly influenced by the specific combination of the habitat type and the season. The highest species richness was found in the peri-urban area (S = 30, Chao1 = 121 ± 50.63, ACE = 51.97 ± 3.88) during the dry season (S = 28, Chao1 = 64 ± 25.7, ACE = 38.33 ± 3.1). Aedes (Ae.) africanus and Culex (Cx.) moucheti were only found in the rural and peri-urban areas, while Cx. pipiens s.l. and Ae. aegypti were only found in the urban area. Cx. (Culiciomyia) spp., Cx. duttoni and Ae. albopictus were caught in the three habitat types. Importantly, approximately 52% of the mosquito species collected in this study have been implicated in the transmission of diverse arboviruses. This entomological survey provides a catalogue of the different mosquito species that may be involved in the transmission of arboviruses. Further investigations are needed to study the vectorial capacity of each mosquito species in arbovirus transmission.

scholarly journals Nationwide inventory of mosquito biodiversity (Diptera: Culicidae) in Belgium, Europe

2012 ◽  
Vol 103 (2) ◽  
pp. 193-203 ◽  
Author(s):  
V. Versteirt ◽  
S. Boyer ◽  
D. Damiens ◽  
E.M. De Clercq ◽  
W. Dekoninck ◽  
...  
Keyword(s):  
Correspondence Analysis ◽  
Bird Migration ◽  
Mosquito Species ◽  
Habitat Type ◽  
Natural Areas ◽  
Habitat Types ◽  
Industrial Sites ◽  
Urban Rural ◽  
Urban Sites ◽  
Selection Of

AbstractTo advance our restricted knowledge on mosquito biodiversity and distribution in Belgium, a national inventory started in 2007 (MODIRISK) based on a random selection of 936 collection points in three main environmental types: urban, rural and natural areas. Additionally, 64 sites were selected because of the risk of importing a vector or pathogen in these sites. Each site was sampled once between May and October 2007 and once in 2008 using Mosquito Magnet Liberty Plus traps. Diversity in pre-defined habitat types was calculated using three indices. The association between species and environmental types was assessed using a correspondence analysis. Twenty-three mosquito species belonging to traditionally recognized genera were found, including 21 indigenous and two exotic species. Highest species diversity (Simpson 0.765) and species richness (20 species) was observed in natural areas, although urban sites scored also well (Simpson 0.476, 16 species). Four clusters could be distinguished based on the correspondence analysis. The first one is related to human modified landscapes (such as urban, rural and industrial sites). A second is composed of species not associated with a specific habitat type, including the now widely distributed Anopheles plumbeus. A third group includes species commonly found in restored natural or bird migration areas, and a fourth cluster is composed of forest species. Outcomes of this study demonstrate the effectiveness of the designed sampling scheme and support the choice of the trap type. Obtained results of this first country-wide inventory of the Culicidae in Belgium may serve as a basis for risk assessment of emerging mosquito-borne diseases.

scholarly journals Naturally Occurring Microbiota Associated with Mosquito Breeding Habitats and Their Effects on Mosquito Larvae

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
H. A. K. Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Abiotic Factors ◽  
Mosquito Species ◽  
Breeding Habitat ◽  
Larval Abundance ◽  
Mosquito Larvae ◽  
Natural Habitats ◽  
Individual Fitness ◽  
Naturally Occurring ◽  
Breeding Habitats ◽  
Mosquito Breeding

Immature mosquitoes are aquatic, and their distribution, abundance, and individual fitness in a particular breeding habitat are known to be dependent on mainly three factors: biotic factors, abiotic factors, and their interaction between each other and with other associated taxa. Mosquito breeding habitats harbor a diversified naturally occurring microbiota assemblage, and the biota have different types of interactions with mosquito larvae in those habitats. Those interactions may include parasitism, pathogenism, predation, and competition which cause the mortality of larvae, natural reduction of larval abundance, or alterations in their growth. Many microbiota species serve as food items for mosquito larvae, and there are also some indigestible or toxic phytoplanktons to larvae. However, when there is coexistence or mutualism of different mosquito species along with associated microbiota, they form a community sharing the habitat requirements. With the available literature, it is evident that the abundance of mosquito larvae is related to the densities of associated microbiota and their composition in that particular breeding habitat. Potential antagonist microbiota which are naturally occurring in mosquito breeding habitats could be used in integrated vector control approaches, and this method rises as an ecofriendly approach in controlling larvae in natural habitats themselves. To date, this aspect has received less attention; only a limited number of species of microbiota inhabiting mosquito breeding habitats have been recorded, and detailed studies on microbiota assemblage in relation to diverse vector mosquito breeding habitats and their association with mosquito larvae are few. Therefore, future studies on this important ecological aspect are encouraged. Such studies may help to identify field characteristic agents that can serve as mosquito controlling candidates in their natural habitats themselves.

scholarly journals The Larval Density of Mosquitos (Diptera: Culicidae) in Jiaxiang County, Shandong Province, China: Influence of Bacterial Diversity, Richness, and Physicochemical Factors

2021 ◽  
Vol 9 ◽  
Author(s):  
Haiyang Wang ◽  
Yang Wang ◽  
Peng Cheng ◽  
Huaiwei Wang ◽  
Haifang Wang ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Bacterial Diversity ◽  
Physicochemical Parameters ◽  
Larval Density ◽  
Habitat Type ◽  
Ammonia Nitrogen ◽  
Shandong Province ◽  
Mosquito Vector ◽  
Breeding Sites ◽  
Physicochemical Factors

As Jiaxiang County of Shandong province is an area with complex mosquito vector composition, it is necessary to investigate the relationship between bacterial diversity, physicochemical factors, and larval density. Therefore, the physicochemical properties of 46 breeding sites for six kinds of habitat types (small puddles, small water containers, paddy fields, large water containers, irrigation channels, and drainage ditches) were investigated by a multiparameter analyzer; the water’s bacterial diversity was analyzed by the 16S rRNA full-length sequencing method. Spearman correlation and multiple linear regression were used to analyze the correlation between larval density and variables. The variables analyzed were dissolved oxygen, pH, hardness, turbidity, conductivity, temperature, ammonia nitrogen, water depth, and distance from the nearest house. One-Way ANOVA was used to understand whether there are differences in bacterial diversity in different habitats. Pearson linear correlation model was used to analyze the effects of bacterial diversity and richness on mosquito densities in breeding sites. A total of 3291 larvae were captured, and a total of 6 species of 4 genera were identified. The identified species were Culex pipiens pallens, Aedes albopictus, Anopheles sinensis, Culex tritaeniorhynchus, Culex bitaeniorhynchus, and Mansonia uniformis. The density and species can be jointly affected by physicochemical properties and bacterial diversity, especially Shannon index and distance from the nearest house. In general, the physicochemical parameters and bacterial diversity of different habitats were significantly different. Even for the same habitat type, the physicochemical parameters varied greatly due to different environments.

Sign in / Sign up

Export Citation Format

Share Document