Climate Change Influences on the Global Potential Distribution of the Mosquito Culex quinquefasciatus, Vector of West Nile Virus and Lymphatic Filariasis

Samy, Abdallah M.; Elaagip, Arwa; Kenawy, M. A.; Ayres, Constância Flávia Junqueira; Peterson, A. Townsend; Soliman, Doaa

doi:10.1371/journal.pone.0163863

Cited by 162 publications

(153 citation statements)

References 48 publications

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“…,b; Samy et al . ), we used different combinations of feature types (auto features or linear, quadratic and product features together (LQP)) and regularisation multiplier values (ranging from 0.5 to 2.5). In addition, we employed threshold‐dependent measure (omission rate based on threshold rule) – the 10th percentile training presence threshold (Fielding & Bell ; Anderson & Gonzalez ).…”

Section: Methodsmentioning

confidence: 99%

Are we witnessing speciation? A case study of the species Sirthenea flavipes (Stål, 1855) (Heteroptera: Reduviidae)

2017

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During our previous morphological and molecular studies, as well as modelling the environmental niche preferences of the genus Sirthenea Spinola, 1840 (Peiratinae), the distribution of the species S. flavipes (Stål, 1855) became one of the most interesting issues. This species has a very broad distribution range covering the southern part of western, central and eastern Asia. We observed two distinct types of colouration, each also exhibiting a certain degree of variability. Although both colour forms of the studied species show similar variability, the differences between them are so clear that they allow distinction of two populations that are separated by a geographical barrier. Morphology and colour variability are described for representatives of both populations. Genetic studies support the use of the distributional model for individuals in both populations, as well as a characteristic distribution of colour forms. Models which identified potentially suitable habitats based solely on climatic variables are prepared for both populations, as well as for the entire species, and predicted for the Last Glacial Maximum period. An analysis of ecoregions shows that both populations prefer areas with tree vegetation, such as tropical and subtropical moist broadleaf forest biomes. Our studies show morphological divergence of these two discrete populations, reflecting an incipient stage of speciation.

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Section: Methodsmentioning

confidence: 99%

Are we witnessing speciation? A case study of the species Sirthenea flavipes (Stål, 1855) (Heteroptera: Reduviidae)

2017

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“…Aedes aegypti (L.) and Ae. albopictus (Skuse) (Diptera: Culicidae) are vectors of the yellow fever, dengue, Zika, and chikungunya viruses [1][2][3]; Culex quinquefasciatus (Say) is the primary vector of the Saint Louis encephalitis and West Nile viruses, as well as the filarial nematode Wuchereria bancrofti, and may also be a vector of the Zika virus [4].…”

Section: Introductionmentioning

confidence: 99%

Mosquito Larvicidal Activity, Antimicrobial Activity, and Chemical Compositions of Essential Oils from Four Species of Myrtaceae from Central Vietnam

Huong

Satyal

et al. 2020

Plants

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Mosquitoes are important vectors of several diseases, and control of these insects is imperative for human health. Insecticides have proven useful in controlling mosquito populations, but insecticide resistance and environmental concerns are increasing. Additionally, emerging and re-emerging microbial infections are problematic. Essential oils have been shown to be promising mosquito larvicidal agents as well as antimicrobial agents. In this work, the essential oils from four species of Myrtaceae (Baeckea frutescens, Callistemon citrinus, Melaleuca leucadendra, and Syzygium nervosum) growing wild in central Vietnam have been obtained by hydrodistillation and analyzed by gas chromatographic techniques. The essential oils have been screened for mosquito larvicidal activity against Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus, and for antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, and Candida albicans. Callistemon citrinus fruit essential oil, rich in α-pinene (35.1%), 1,8-cineole (32.4%), limonene (8.2%), and α-terpineol (5.8%) showed good larvicidal activity with 24-h LC 50 = 17.3 µg/mL against both Ae. aegypti and Cx. quinquefasciatus, and good antibacterial activity against E. faecalis (minimum inhibitory concentration (MIC) = 16 µg/mL) The 48-h larvicidal activities of M. leucadendra leaf essential oil, rich in α-eudesmol (17.6%), guaiol (10.9%), linalool (5.1%), (E)-caryophyllene (7.0%), and bulnesol (3.6%) were particularly notable, with LC 50 of 1.4 and 1.8 µg/mL on Ae. aegypti and Cx. quinquefasciatus. Similarly, M. leucadendra bark essential oil, with α-eudesmol (24.1%) and guaiol (11.3%), showed good antibacterial activity against. E. faecalis. Both B. frutescens and C. citrinus leaf essential oils demonstrated anti-Candida activities with MIC values of 16 µg/mL. The results of this investigation suggest that essential oils derived from the Myrtaceae may serve as "green" alternatives for the control of mosquitoes and/or complementary antimicrobial agents.

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“…Mosquito-vectored diseases are a major cause of death and illness globally, particularly in the tropics (Guernier et al 2004). Changing climates are supporting expansions in the actual or predicted geographic ranges of mosquito species important to public health, including Aedes aegypti (L.) and Culex quinquefasciatus Say (Morrison et al 2008, Rochlin et al 2013, Samy et al 2016. In consequence, risks from mosquito-vectored pathogens are expanding into new human populations, including in countries in which topical mosquito repellents are already widely used for protection from seasonal nuisance biting.…”

Section: Introductionmentioning

confidence: 99%

A Milestone In Botanical Mosquito Repellents: Novel PMD-Based Formulation Protects More Than Twice As Long As High-Concentration Deet and Other Leading Products

Carroll¹,

Venturino²,

Davies³

2019

Journal of the American Mosquito Control Association

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The use of skin-applied repellents is the primary method recommended by the Centers for Disease Control and Prevention for personal protection against biting mosquitoes. Historically, the majority of long-efficacy mosquito repellents have been N,N diethyl-3-methylbenzamide (deet)-based. Recently, a variety of new botanical formulations have been marketed, but their protection times generally continue to fall well short of highconcentration deet products. We present a laboratory arm-in-cage study of a Neo-Innovat repellent that has a prolonged action ''NEO-PARTt'' (Prolonged Action Release Technology) formulation with 40% Citriodiolt. This formulation provides the botanical molecule para-menthane 3,8-diol (PMD) at 25% w/v of the total formulation. Against Aedes aegypti, Neo-Innova's mean complete protection time (CPT; 14.2 h) was approximately 2 to 3 times longer than that of 5 leading high-performance repellents marketed in the USA, including 25% deet and a 20% PMD ethanolic formulation. When testing Neo-Innova, 5 of the 6 subjects had no landings after 15 h. The 6th had single landings at 10 and 11 h (individual CPT of 10 h), but received no additional landings in further exposures made at 13 and 15 h. Neo-Innova repellency against Culex quinquefasciatus was similarly prolonged. The tremendous increment in repellency duration observed for the Neo-Innova product, when compared with both current standard and botanical repellent options, represents a milestone in repellent development and supports ''once-a-day'' applications as a practical strategy for personal protection against mosquitoes.

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Climate Change Influences on the Global Potential Distribution of the Mosquito Culex quinquefasciatus, Vector of West Nile Virus and Lymphatic Filariasis

Cited by 162 publications

References 48 publications

Are we witnessing speciation? A case study of the species Sirthenea flavipes (Stål, 1855) (Heteroptera: Reduviidae)

Are we witnessing speciation? A case study of the species Sirthenea flavipes (Stål, 1855) (Heteroptera: Reduviidae)

Mosquito Larvicidal Activity, Antimicrobial Activity, and Chemical Compositions of Essential Oils from Four Species of Myrtaceae from Central Vietnam

A Milestone In Botanical Mosquito Repellents: Novel PMD-Based Formulation Protects More Than Twice As Long As High-Concentration Deet and Other Leading Products

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