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  1. Article: Vertical Transmission of Zika Virus by Florida

    Zimler, Rebecca A / Alto, Barry W

    Insects

    2023  Volume 14, Issue 3

    Abstract: The Zika virus pandemic of 2015, with ... ...

    Abstract The Zika virus pandemic of 2015, with mosquitoes
    Language English
    Publishing date 2023-03-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662247-6
    ISSN 2075-4450
    ISSN 2075-4450
    DOI 10.3390/insects14030289
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Transmission of Asian Zika Lineage by

    Zimler, Rebecca A / Alto, Barry W

    Viruses

    2023  Volume 15, Issue 2

    Abstract: The Asian lineage of Zika virus (ZIKV), a mosquito-borne pathogen originally from Africa, caused an epidemic into Brazil in 2015 and subsequently spread throughout the Americas. Local transmission in the U.S. is a public health concern, especially for ... ...

    Abstract The Asian lineage of Zika virus (ZIKV), a mosquito-borne pathogen originally from Africa, caused an epidemic into Brazil in 2015 and subsequently spread throughout the Americas. Local transmission in the U.S. is a public health concern, especially for Florida where the mosquito vectors
    MeSH term(s) Humans ; Animals ; Aedes ; Zika Virus/genetics ; Zika Virus Infection ; Florida/epidemiology ; Disease Outbreaks
    Language English
    Publishing date 2023-02-02
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v15020425
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Temperature-Mediated Effects on Mayaro Virus Vector Competency of Florida

    Alomar, Abdullah A / Alto, Barry W

    Viruses

    2022  Volume 14, Issue 5

    Abstract: Mayaro virus (MAYV) is an emerging mosquito-borne arbovirus and public health concern. We evaluated the influence of temperature ... ...

    Abstract Mayaro virus (MAYV) is an emerging mosquito-borne arbovirus and public health concern. We evaluated the influence of temperature on
    MeSH term(s) Aedes ; Alphavirus/physiology ; Alphavirus Infections ; Animals ; Florida ; Mosquito Vectors ; Temperature
    Language English
    Publishing date 2022-04-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v14050880
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Trait- and density-mediated effects of predation on fecundity and fertility of Aedes aegypti (Diptera: Culicidae) mosquitoes.

    Bellamy, Shawna K / Paige, Andrew / Alto, Barry W

    Journal of medical entomology

    2023  Volume 61, Issue 1, Page(s) 132–141

    Abstract: Prey populations that encounter predators experience density-mediated effects through lethality and associated numerical changes in the population. Prey also exhibit trait-mediated effects through nonlethal alterations in phenotypic traits associated ... ...

    Abstract Prey populations that encounter predators experience density-mediated effects through lethality and associated numerical changes in the population. Prey also exhibit trait-mediated effects through nonlethal alterations in phenotypic traits associated with exposure to predators. Immature stages of mosquitoes commonly co-occur in habitats along with predators, a natural source of mortality and potential biocontrol agent. Toxorhynchites rutilus Coquillett 1896 is a natural source of mortality with potential as a biological control agent. Previous studies have shown that predation and the mere presence of Tx. rutilus (predator cues) can alter the life-history traits of Aedes aegypti (L. 1762). In addition to observed reductions in recruitment of adults (lethality), exposure to Tx. rutilus without consumption resulted in adult Ae. aegypti females with altered growth and reduced lifespan. To determine the influence of predation on the reproductive biology of Ae. aegypti, we tested the hypothesis that predation, or exposure to predator cues, will compromise the reproduction of adult survivors through reductions in fecundity (egg batch size) and fertility (hatch rate). We observed that for both female and male Ae. aegypti, survival to adulthood was the lowest and development time the shortest in treatments containing prey removal effects, attributable to predation and treatment manipulations of density reduction. There were effects of Ae. aegypti weight, but not predation treatments, on fecundity and fertility. Results suggest that predator-mediated effects on Ae. aegypti derive from lethal effects due to consumption and alterations in other phenotypic traits of survivors, including development, weight, lifespan of adults, and population growth, but not reproductive parameters measured here.
    MeSH term(s) Male ; Female ; Animals ; Culicidae ; Aedes ; Predatory Behavior ; Larva ; Ecosystem ; Fertility
    Language English
    Publishing date 2023-11-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjad146
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The Extrinsic Incubation Period of Zika Virus in Florida Mosquitoes

    Zimler, Rebecca A / Alto, Barry W

    Pathogens (Basel, Switzerland)

    2021  Volume 10, Issue 10

    Abstract: The Asian genotype of Zika virus (ZIKV) emerged in Brazil in 2015 and subsequently spread throughout the Americas. In July 2016, Florida experienced its first locally acquired ZIKV infection in the continental U.S. Concerns about health risks from ZIKV ... ...

    Abstract The Asian genotype of Zika virus (ZIKV) emerged in Brazil in 2015 and subsequently spread throughout the Americas. In July 2016, Florida experienced its first locally acquired ZIKV infection in the continental U.S. Concerns about health risks from ZIKV infection have increased the need to investigate the interactions between potential mosquito vectors and ZIKV. The time it takes for an arbovirus to propagate within a mosquito, and become transmissible, is the extrinsic incubation period (EIP). The EIP for potential mosquito vectors in Florida is unknown. To address this gap in the understanding of ZIKV epidemiology, Florida
    Language English
    Publishing date 2021-09-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2695572-6
    ISSN 2076-0817
    ISSN 2076-0817
    DOI 10.3390/pathogens10101252
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The Role of Predation in Determining Traits of Aedes aegypti (Diptera: Culicidae) and Infection With Zika Virus.

    Bellamy, Shawna / Alto, Barry W

    Journal of medical entomology

    2021  Volume 58, Issue 3, Page(s) 1197–1201

    Abstract: Non-lethal predator-prey interactions during the immature stages can cause significant changes to mosquito life history traits and their ability to transmit pathogens as adults. Treatment manipulations using mosquitoes Aedes aegypti (L.) and ... ...

    Abstract Non-lethal predator-prey interactions during the immature stages can cause significant changes to mosquito life history traits and their ability to transmit pathogens as adults. Treatment manipulations using mosquitoes Aedes aegypti (L.) and Toxoryhnchites rutilus (Coquillett) were performed during the immature stages to explore the potential impacts of non-lethal interactions on adult susceptibility to infection, disseminated infection and saliva infection of Ae. aegypti following ingestion of Zika virus-infected blood. Treatments inducing density reduction resulted in reduced development time and survivorship to adulthood. However, effects of treatment did not alter infection, dissemination, or saliva infection. These observations indicate that, while non-lethal predation may impact some traits that influence population dynamics and transmission of pathogens, there were no direct effects on mosquito-arbovirus interactions.
    MeSH term(s) Aedes/growth & development ; Aedes/virology ; Animals ; Culicidae/growth & development ; Culicidae/physiology ; Culicidae/virology ; Food Chain ; Larva/growth & development ; Larva/physiology ; Larva/virology ; Life History Traits ; Mosquito Vectors/growth & development ; Mosquito Vectors/virology ; Predatory Behavior ; Zika Virus/physiology
    Language English
    Publishing date 2021-01-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjab004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Paternal and maternal effects in a mosquito: A bridge for life history transition.

    Yanchula, Kylie Zirbel / Alto, Barry W

    Journal of insect physiology

    2021  Volume 131, Page(s) 104243

    Abstract: Parental (transgenerational) effects occur when the conditions experienced by a mother or father contribute to offspring phenotype. Here we show that parental larval diet in mosquitoes, Aedes aegypti, results in differential allocation of resources in ... ...

    Abstract Parental (transgenerational) effects occur when the conditions experienced by a mother or father contribute to offspring phenotype. Here we show that parental larval diet in mosquitoes, Aedes aegypti, results in differential allocation of resources in offspring of parents depending on the nutritional condition (quality) of their mate. Maternal effects influenced the number of eggs produced by females as well as their lipid investment. Low nutrient females mated with high nutrient males laid eggs with significantly higher lipid content than those laid by high nutrient females. Paternal effects showed that when high nutrient males mated with low nutrient females, resulting eggs had higher lipid content than when low nutrient males mated with low nutrient females. Overall, our results are consistent with a pattern predicted by the differential allocation of resources hypothesis, when females experience nutritional deprivation, which asserts that mate quality directly influences reproductive allocation.
    MeSH term(s) Aedes ; Animals ; Female ; Life History Traits ; Male ; Maternal Inheritance ; Paternal Inheritance ; Reproduction
    Language English
    Publishing date 2021-04-19
    Publishing country England
    Document type Journal Article
    ISSN 1879-1611
    ISSN (online) 1879-1611
    DOI 10.1016/j.jinsphys.2021.104243
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Evaluation of Pyriproxyfen Effects on Aedes aegypti and Predatory Mosquito Toxorhynchites rutilus (Diptera: Culicidae).

    Alomar, Abdullah A / Alto, Barry W

    Journal of medical entomology

    2021  Volume 59, Issue 2, Page(s) 585–590

    Abstract: Control of mosquito vectors of pathogens remains heavily dependent on the application of conventional insecticides. Pyriproxyfen (PPF) is a novel insecticide that has been proposed for use in autodissemination techniques to control mosquito vectors. The ... ...

    Abstract Control of mosquito vectors of pathogens remains heavily dependent on the application of conventional insecticides. Pyriproxyfen (PPF) is a novel insecticide that has been proposed for use in autodissemination techniques to control mosquito vectors. The use of PPF can inhibit adult emergence but does not inhibit larval development. This feature is favorable for controlling Aedes aegypti because PPF has the potential to work in combination with natural sources of mortality (competition, predation) during the immature stages, and other control methods, including biocontrol agents that further suppress recruitment of adult mosquitoes. However, the PPF effects on life-history traits of Ae. aegypti in comparison to predatory mosquito Toxorhynchites rutilus, a source of mortality, are not fully understood. Here, we show that larval exposure to PPF concentrations that inhibit 50-90% of adult emergence in Ae. aegypti had a negligible effect on adult emergence and lifespan of Tx. rutilus. Weights of adult Ae. aegypti and Tx. rutilus were not influenced by PPF. These findings suggest that the use of PPF to control mosquito vectors may have low effects on mosquito biocontrol agents. Our results extend and confirm earlier data showing that PPF has potential to implement with Tx. rutilus to suppress Ae. aegypti and provide an additional advantage of PPF use in autodissemination control strategies.
    MeSH term(s) Aedes ; Animals ; Culicidae ; Insecticides/pharmacology ; Larva ; Mosquito Control/methods ; Mosquito Vectors ; Predatory Behavior ; Pyridines/pharmacology
    Chemical Substances Insecticides ; Pyridines ; pyriproxyfen (3Q9VOR705O)
    Language English
    Publishing date 2021-12-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjab193
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: The Role of Predation in Determining Traits of Aedes aegypti (Diptera: Culicidae) and Infection With Zika Virus

    Bellamy, Shawna / Alto, Barry W

    Journal of medical entomology. 2021 Feb. 8, v. 58, no. 3

    2021  

    Abstract: Non-lethal predator-prey interactions during the immature stages can cause significant changes to mosquito life history traits and their ability to transmit pathogens as adults.Treatment manipulations using mosquitoes Aedes aegypti (L.) and ... ...

    Abstract Non-lethal predator-prey interactions during the immature stages can cause significant changes to mosquito life history traits and their ability to transmit pathogens as adults.Treatment manipulations using mosquitoes Aedes aegypti (L.) and Toxoryhnchites rutilus (Coquillett) were performed during the immature stages to explore the potential impacts of non-lethal interactions on adult susceptibility to infection, disseminated infection and saliva infection of Ae. aegyptifollowing ingestion of Zika virus-infected blood.Treatments inducing density reduction resulted in reduced development time and survivorship to adulthood. However, effects of treatment did not alter infection, dissemination, or saliva infection.These observations indicate that, while non-lethal predation may impact some traits that influence population dynamics and transmission of pathogens, there were no direct effects on mosquito-arbovirus interactions.
    Keywords Aedes aegypti ; Zika virus ; adulthood ; adults ; ingestion ; life history ; medical entomology ; population dynamics ; predation ; saliva ; survival rate
    Language English
    Dates of publication 2021-0208
    Size p. 1197-1201.
    Publishing place Entomological Society of America
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 410635-0
    ISSN 0022-2585
    ISSN 0022-2585
    DOI 10.1093/jme/tjab004
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Spinosyns Delivered in Sugar Meals to Aedes aegypti and Aedes albopictus (Diptera: Culicidae): Acute Toxicity and Subacute Effects on Survival, Fecundity, and Fertility.

    Alomar, Abdullah A / Alto, Barry W / Walker, Edward D

    Journal of medical entomology

    2022  Volume 59, Issue 2, Page(s) 623–630

    Abstract: Sugar is an essential source of nutrition for adult mosquitoes to acquire energy. Toxic sugar bait (TSB) provides a promising method for mosquito control by incorporating toxins into artificial sources of sugar (i.e., toxic baits) presented to wild ... ...

    Abstract Sugar is an essential source of nutrition for adult mosquitoes to acquire energy. Toxic sugar bait (TSB) provides a promising method for mosquito control by incorporating toxins into artificial sources of sugar (i.e., toxic baits) presented to wild populations. Spinosyns comprise a family of bacterial secondary metabolites with a unique mode of action against the insect nervous system, an appealing environmental safety profile, and potential for incorporation into sugar baits. This research evaluated acute and subacute effects of spinosad (spinosyns A and D) and spinetoram (spinosyns J and L) in sugar meals on survival, fecundity, and fertility of Aedes aegypti and Aedes albopictus. Acute toxicity of spinosyns doubled from 24 to 48 h of assessment, revealing a relatively slow and cumulative action of the formulated spinosyns. Median lethal concentrations at 48 h were lower for spinetoram than for spinosad, lower for Ae. albopictus than Ae. aegypti, and lower for males than females. When exposed to subacute LC50 concentrations of spinosad and spinetoram for 24 h, survival of males and females of both species was diminished compared with controls, fecundity of females was increased, but fertility as measured by hatch rate of eggs was decreased. The formulations may have increased the nutritive value of the sugar meals thereby boosting fecundity, while toxifying embryos, reducing fertility. The inclusion of subacute effects of spinosyns allows assessment of the broader consequences of TSB for adult mosquito control.
    MeSH term(s) Aedes/physiology ; Animals ; Carbohydrates ; Female ; Fertility ; Male ; Meals ; Mosquito Control/methods ; Pesticides ; Sugars
    Chemical Substances Carbohydrates ; Pesticides ; Sugars
    Language English
    Publishing date 2022-01-07
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjab220
    Database MEDical Literature Analysis and Retrieval System OnLINE

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