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:

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 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 Impact of seasonality and malaria control interventions on Anopheles density and species composition from three areas of Uganda with differing malaria endemicity

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Henry Ddumba Mawejje ◽  
Maxwell Kilama ◽  
Simon P. Kigozi ◽  
Alex K. Musiime ◽  
Moses Kamya ◽  
...  
Keyword(s):  
Species Composition ◽  
Vector Control ◽  
Malaria Control ◽  
Mosquito Species ◽  
Density Ratio ◽  
Indoor Residual Spraying ◽  
Sub Saharan Africa ◽  
Malaria Vector Control ◽  
Vector Density ◽  
Llin Distribution

Abstract Background Long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) are the malaria control interventions primarily responsible for reductions in transmission intensity across sub-Saharan Africa. These interventions, however, may have differential impact on Anopheles species composition and density. This study examined the changing pattern of Anopheles species in three areas of Uganda with markedly different transmission intensities and different levels of vector control. Methods From October 2011 to June 2016 mosquitoes were collected monthly using CDC light traps from 100 randomly selected households in three areas: Walukuba (low transmission), Kihihi (moderate transmission) and Nagongera (high transmission). LLINs were distributed in November 2013 in Walukuba and Nagongera and in June 2014 in Kihihi. IRS was implemented only in Nagongera, with three rounds of bendiocarb delivered between December 2014 and June 2015. Mosquito species were identified morphologically and by PCR (Polymerase Chain Reaction). Results In Walukuba, LLIN distribution was associated with a decline in Anopheles funestus vector density (0.07 vs 0.02 mosquitoes per house per night, density ratio [DR] 0.34, 95% CI: 0.18–0.65, p = 0.001), but not Anopheles gambiae sensu stricto (s.s.) nor Anopheles arabiensis. In Kihihi, over 98% of mosquitoes were An. gambiae s.s. and LLIN distribution was associated with a decline in An. gambiae s.s. vector density (4.00 vs 2.46, DR 0.68, 95% CI: 0.49–0.94, p = 0.02). In Nagongera, the combination of LLINs and multiple rounds of IRS was associated with almost complete elimination of An. gambiae s.s. (28.0 vs 0.17, DR 0.004, 95% CI: 0.002–0.009, p < 0.001), and An. funestus sensu lato (s.l.) (3.90 vs 0.006, DR 0.001, 95% CI: 0.0005–0.004, p < 0.001), with a less pronounced decline in An. arabiensis (9.18 vs 2.00, DR 0.15 95% CI: 0.07–0.33, p < 0.001). Conclusions LLIN distribution was associated with reductions in An. funestus s.l. in the lowest transmission site and An. gambiae s.s. in the moderate transmission site. In the highest transmission site, a combination of LLINs and multiple rounds of IRS was associated with the near collapse of An. gambiae s.s. and An. funestus s.l. Following IRS, An. arabiensis, a behaviourally resilient vector, became the predominant species, which may have implications for malaria vector control activities. Development of interventions targeted at outdoor biting remains a priority.

scholarly journals BIOLOGICAL AND ECOLOGICAL FEATURES OF THE SAXAUL-EATING SHEEPSHANKS (COLEOPHORIDAE)

2020 ◽  
Vol 2 (338) ◽  
pp. 62-68
Author(s):  
N. T. Tumenbaeva ◽  
B. K. Mоmbayeva ◽  
D. А. Smagulova ◽  
F. S. Mendigaliyeva
Keyword(s):  
Species Composition ◽  
Seed Production ◽  
Pest Species ◽  
Agricultural Engineering ◽  
Biological Features ◽  
South Eastern ◽  
Ecological Features ◽  
Natural Pasture ◽  
Pasture Grasses ◽  
Desert Zone

Within pests (insects), Lepidoptera, by species composition and harmfulness, are in the front row. As you know, one of the biogenic factors in nature, they have a serious impact on the yield of natural pasture grasses and saxaul. They feed on leaves, stems, roots, flowers and seeds of plants, and prevent the reproduction of saxaul. In this regard, it is now necessary to study the biological characteristics of shells that feed on saxaul, determine the phenology, harmfulness, and organize measures to protect against pests. For many reasons (seed production, agricultural engineering, etc.), it is connected with the fact that in the desert zone of South-Eastern and southern Kazakhstan, issues of increasing the area of the saxaul and protecting it from pests are being solved. One of the main reasons is an incomplete study of the species composition of insects-insects that feed on saxaul. Therefore, the study of bioecological features of pest species and their harmfulness and measures to protect the saxaul from pests is one of the urgent problems. The article deals with the study of biological features of shells that feed on saxaul, determining the phenology, harmfulness and organization of measures to protect against pests.

scholarly journals Delivery Methods for RNAi in Mosquito Larvae

2020 ◽  
Vol 20 (4) ◽  
Author(s):  
Kashif Munawar ◽  
Azzam M Alahmed ◽  
Sayed M S Khalil
Keyword(s):  
Mosquito Control ◽  
Mosquito Species ◽  
Main Tool ◽  
Field Application ◽  
World Population ◽  
Mosquito Larvae ◽  
Health Issues ◽  
Delivery Methods ◽  
Resistance Development ◽  
The World

Abstract Mosquito-transmitted diseases pose a threat for a great portion of the world population. Chemical insecticides are the main tool for mosquito control. Heavy dependence on chemicals created several problems such as resistance development in many mosquito species, environmental effects, and human health issues. Other tools for mosquito control were developed and used in some parts of the world. Ribonucleic acid interference (RNAi) is a reverse genetic mechanism that was recently introduced as a new tool for pest control. Regarding mosquito, RNAi was used to study gene function and to discover genes that can be used as targets for control purposes. Several delivery methods are used to induce RNAi in mosquito larvae. Some methods such as injection and soaking are used routinely in RNAi research but have no application in the field. Other methods such as nanoparticles and microbes have some characteristics that make them good candidates for field application. In this report, we will focus on delivery methods for RNAi in mosquito larvae and will give examples for each method.

Mosquito species composition of the Dooars of West Bengal, India

2010 ◽  
Vol 63 (1) ◽  
pp. 21-25 ◽  
Author(s):  
Swapan Kumar Rudra ◽  
Ananda Mukhopadhyay
Keyword(s):  
Species Composition ◽  
West Bengal ◽  
Mosquito Species

Changes in species composition, vegetation structure, and life forms along an altitudinal gradient of rupestrian grasslands in south-eastern Brazil

Flora ◽  
2018 ◽  
Vol 238 ◽  
pp. 32-42 ◽  
Author(s):  
Graciene Silva Mota ◽  
Giovana Rodrigues Luz ◽  
Nayara Mesquita Mota ◽  
Etiene Silva Coutinho ◽  
Maria das Dores Magalhães Veloso ◽  
...  
Keyword(s):  
Species Composition ◽  
Vegetation Structure ◽  
Altitudinal Gradient ◽  
Life Forms ◽  
South Eastern ◽  
Eastern Brazil

scholarly journals Occurrence of broad bean (Vicia faba L.) diseases in Olsztyn-Elbąg and Bydgoszcz Provinces

2013 ◽  
Vol 41 (2) ◽  
pp. 245-255 ◽  
Author(s):  
Stanisław Sadowski
Keyword(s):  
Species Composition ◽  
Fusarium Oxysporum ◽  
Vicia Faba ◽  
Root Rot ◽  
Broad Bean ◽  
Climate Conditions ◽  
Vicia Faba L ◽  
Root Fungi ◽  
Bean Leaves

During the years 1981-1985, there were conducted studies of the healthiness of broad bean,'Nadwiślański' variety, cultivated in different soil and climate conditions of the two regions: i.e. Bydgoszcz - comparatively warmer and drier, and Olsztyn-Elbląg - colder and moister. It was found that the main reason for a premature broad bean leaves dry in up in the Olsztyn-Elbląg Region was caused by the fungi <i>Cercospora</i> and <i>Botrytis</i>, and in the Bydgoszcz Region - the root rot which occurs here to a greater extent. Root gangrene was greater intensity in drier and lighter soils. Rotting broad bean roots were most frequently occupied by the fungi of the <i>Fusarium family</i> (ca. 70%). The prevailing species were <i>Fusarium oxysporum</i>, next <i>F. solani</i> and more rarely <i>F. culmorum</i> and <i>F. avenaceum</i>. Climate conditions and soil species affected considerably the species composition of the root fungi.

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