The effect of photoperiod on life history and blood-feeding activity in<i>Aedes albopictus</i>and<i>Aedes aegypti</i>(Diptera: Culicidae)

Costanzo, Katie S.; Schelble, S.; Jerz, K.; Keenan, Michael J.

doi:10.1111/jvec.12146

Cited by 49 publications

(48 citation statements)

References 59 publications

(89 reference statements)

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“…Only the size of adult females was affected by photoperiod, and in contrast to the results described above from Yee et al (2012), Constanzo et al (2015) found that size increased rather than decreased under short day length conditions. The difference between the results of Costanzo et al (2015) and those of Yee et al (2012) is likely due at least in part to the different temperature conditions used in these experiments (25 C vs. 20 C). As noted above, photoperiodic effects can be highly temperature dependent (Pumpuni et al 1992, Bean et al 2012).…”

Section: Ae Albopictusmentioning

confidence: 82%

“…The shorter larval development time under short-day conditions potentially indicated adaptive seasonal phenotypic plasticity to ensure maturation and successful reproduction before the onset of unfavorable winter conditions, with the sex-specificity of the response reflecting differences in the reproductive constraints of males versus females (Yee et al 2012). Costanzo et al (2015) used a population of Ae. albopictus from Florida to measure larval development time, adult female size, survival, life span, fecundity, and propensity to blood feed at 25 C under three photoperiod conditions-short day length (10:14, L:D), intermediate day length (12:12, L:D), and long day length (14:10, L:D).…”

Section: Ae Albopictusmentioning

confidence: 99%

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Photoperiodic Diapause and the Establishment ofAedes albopictus(Diptera: Culicidae) in North America

Armbruster

2016

J Med Entomol

108

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The invasion and range expansion of Aedes albopictus (Skuse) in North America represents an outstanding opportunity to study processes of invasion, range expansion, and climatic adaptation. Furthermore, knowledge obtained from such research is relevant to developing novel strategies to control this important vector species. Substantial evidence indicates that the photoperiodic diapause response is an important adaptation to climatic variation across the range of Ae. albopictus in North America. Photoperiodic diapause is a key determinant of abundance in both space and time, and the timing of entry into and exit out of diapause strongly affects seasonal population dynamics and thus the potential for arbovirus transmission. Emerging genomic technologies are making it possible to develop high-resolution, genome-wide genetic markers that can be used for genetic mapping of traits relevant to disease transmission and phylogeographic studies to elucidate invasion history. Recent work using next-generation sequencing technologies (e.g., RNA-seq), combined with physiological experiments, has provided extensive insight into the transcriptional basis of the diapause response in Ae. albopictus. Applying this knowledge to identify novel targets for vector control represents an important future challenge. Finally, recent studies have begun to identify traits other than diapause that are affected by photoperiodism. Extending this work to identify additional traits influenced by photoperiod should produce important insights into the seasonal biology of Ae. albopictus.

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Section: Ae Albopictusmentioning

confidence: 82%

Section: Ae Albopictusmentioning

confidence: 99%

Photoperiodic Diapause and the Establishment ofAedes albopictus(Diptera: Culicidae) in North America

Armbruster

2016

J Med Entomol

108

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“…Weekly meteorological data (maximum/minimum temperature, temperature range, accumulated rainfall, mean relative humidity, humidity range and mean vapor pressure of water) were calculated and used to data analysis. Besides, the photoperiod was added as variable, which has an effect on lifespan and blood feeding activity and controls the species survival [26]. Considering the biological characteristics of Ae.…”

Section: Methodsmentioning

confidence: 99%

Temporal models using environmental variables to predict Aedes aegypti oviposition activity in a temperate region of Argentina

Benitez

Estallo

Grech

et al. 2019

Preprint

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Environmental variables are some of the factors that more impact on Aedes aegypti, vector of Dengue, Chikungunya and Zika viruses. In this study, the Ae. aegypti oviposition activity was related to satellite and meteorological variables, in Córdoba City (Argentina). Eggs were collected using ovitraps placed throughout the city from 2009 to 2012, replaced them weekly. Generalized Linear Mixed Models were developed with negative binomial distributions of errors, modeling average number of eggs collected weekly as a function of satellite and meteorological variables with time lags. The best model included a vegetation index, vapor pressure of water, precipitation and photoperiod, lagged between 3 and 4 weeks. By each increment unit in vegetation index, vapor pressure (hPa) and light hour, the average number of eggs increases by 72%, 20% and 29%, respectively, in the following 3 or 4 weeks. In addition, the average number of eggs decreases a 50% in the following month by each millimeter of rain. The results evince the relevant importance of the vegetation, maybe due to the shade that provide to the containers as breeding habitat of this species and the shelter for adults. On the other hand, the negative effect of precipitation could be a consequence of abundant rainfalls that fulfill containers avoiding females to lay eggs in there. Although no significant effect of the photoperiod on the vector abundance has been detected in the north of the country, in Córdoba City an important effect is observed when it is presented together with other variables, producing different effects of these variables in different regions. Lastly, it is necessary to emphasize the importance of the minimum temperature in temperate zones, since it would be a limiting factor that prevents the Ae. aegypti oviposition activity.

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“…DEET: air in one tube contained 4% CO2 and ticks were exposed to 50 ng•cm -3 DEET. Significance of warm/cold or CO2/air difference: **: p<0.001; *: p<0.05. give increased host-seeking, feeding and longevity in studies with laboratory-reared adult Aedes albopictus and A. aegypti 13 .…”

Section: Other Supplementary Materials For This Manuscript Include Thmentioning

confidence: 99%

“…S3C) did not decline with increasing repellent concentration, indicating that repellents affect heat detection but not hostseeking behavior. We next examined the effect of DEET on the olfactory response to CO2, a necessary and sufficient stimulant of host-seeking behavior 6,13 . In control Y-tube bioassays testing medical grade air in both arms ( Fig.…”

mentioning

confidence: 99%

Ticks Home in on Body Heat: A New Understanding of Ectoparasite Host-Seeking and Repellent Action

Carr

Salgado

2019

Preprint

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Ticks are second only to mosquitoes as vectors of disease to humans and animals.Commercial insect repellents reduce or prevent potentially infectious tick bites by disrupting tick host-seeking behavior. Tick host-seeking is mainly ascribed to the Haller's organ, a complex sensory structure on the tick foreleg that detects odors, carbon dioxide and heat 4-7 , but these host-seeking mechanisms and the mechanism of their disruption by repellents are not well understood 1,2 . There is anecdotal evidence that ticks and other ectoparasites are attracted to heat, but it has never been demonstrated that they use radiant heat to detect hosts at a distance. In fact, previous attempts to do this have concluded that radiant heat is not used by ticks. Here we show that Amblyomma americanum and Dermacentor variabilis ticks can sense and home in on a human from several meters away, guided by radiant heat sensed by the Haller's organ, and specifically the capsule, a covered spherical pit organ. An aperture in the capsule cover confers directionality and highly reflective interior surfaces of the capsule provide high sensitivity. Low concentrations of the insect repellents DEET, picaridin, 2-undecanone, citronellal and nootkatone eliminate thermotaxis without affecting olfactory-stimulated host-seeking behavior.Our results demonstrate that the tick Haller's organ capsule is a radiant heat sensor used in hostfinding and that repellents disrupt this sense at concentrations that do not disrupt olfaction. We anticipate this discovery to significantly aid insect repellent research and development of innovative strategies for protection against ectoparasites and vector-borne disease.

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The effect of photoperiod on life history and blood-feeding activity inAedes albopictusandAedes aegypti(Diptera: Culicidae)

Cited by 49 publications

References 59 publications

Photoperiodic Diapause and the Establishment ofAedes albopictus(Diptera: Culicidae) in North America

Photoperiodic Diapause and the Establishment ofAedes albopictus(Diptera: Culicidae) in North America

Temporal models using environmental variables to predict Aedes aegypti oviposition activity in a temperate region of Argentina

Ticks Home in on Body Heat: A New Understanding of Ectoparasite Host-Seeking and Repellent Action

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