Spatial Bet Hedging in Sand Fly Oviposition: Factors Affecting Skip Oviposition in<i>Phlebotomus papatasi</i>Sand Flies

McLaughlin, Lexua G.; Wasserberg, Gideon

doi:10.1089/vbz.2020.2737

Cited by 5 publications

(2 citation statements)

References 42 publications

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“…That is, the female mosquitoes seek oviposition places with low intraspecific competition and high food content. The population dynamics of these species of mosquitoes has been associated with a seasonal behavior because the time of breading and oviposition is strongly related to abiotic variables such as climate, temperature, humidity among other environment drivers [12,24,25,14,11,18,15,13,17,3,16]. Recently, the daily and seasonal temperature fluctuations have been object of studies to forecasting the evolution of the malaria [10].…”

Section: The Modelmentioning

confidence: 99%

Modeling the effects of climate change on the population dynamics of mosquitoes that are vectors of infectious diseases

Villavicencio-Pulido¹,

Osuna²,

Díaz-Marín

2023

Proyecciones (Antofagasta)

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We incorporate almost periodic functions in a mosquito model to take into account a loss of synchronicity in the population dynamics of mosquitoes due to climate change. The model takes into account the skip oviposition strategy that is associated with the mosquitoes that are vectors of infectious diseases as dengue, malaria and leishmaniasis. We prove existence and uniqueness of a stable almost periodic solution for some conditions over the parameters of the model. Numerical simulations are performed using values estimated for the life cycle of Aedes albopictus gathered in literature. The results show that the vector population can be underestimated or overestimated if an almost periodic dynamics is approximated by a periodic dynamics. Therefore, using an almost seasonal model can be more adequate to design breeding habitat-targeted mosquito control strategies when seasonal drivers are modeled since climate-mediated shifts can induce a loss of periodicity in environmental drivers.

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Section: The Modelmentioning

confidence: 99%

Modeling the effects of climate change on the population dynamics of mosquitoes that are vectors of infectious diseases

Villavicencio-Pulido¹,

Osuna²,

Díaz-Marín

2023

Proyecciones (Antofagasta)

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“…Earlier age of host death also creates an unreliable resource, as host death, often due to P. downsi parasitism, could occur before larvae are ready to pupate. The unreliability of host resources could contribute to declining parasite clutch sizes, as females oviposit fewer eggs in more nests as a form of spatial bet hedging (Hopper 1999;McLaughlin and Wasserberg 2021). Due to small sample sizes of our two host species, we were unable to analyse P. downsi reproductive behaviour between species, which is important for continued monitoring of host-parasite dynamics.…”

Section: Shifts In Reproductive Behaviourmentioning

confidence: 99%

Genetics reveals shifts in reproductive behaviour of the invasive bird parasite Philornis downsi collected from Darwin’s finch nests

et al. 2022

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Due to novel or dynamic fluctuations in environmental conditions and resources, host and parasite relationships can be subject to diverse selection pressures that may lead to significant changes during and after invasion of a parasite. Genomic analyses are useful for elucidating evolutionary processes in invasive parasites following their arrival to a new area and host. Philornis downsi (Diptera: Muscidae), the avian vampire fly, was introduced to the Galápagos Islands circa 1964 and has since spread across the archipelago, feeding on the blood of developing nestlings of endemic land birds. Since its discovery, there have been significant changes to the dynamics of P. downsi and its novel hosts, such as shifting mortality rates and changing oviposition behaviour, however no temporal genetic studies have been conducted. We collected P. downsi from nests and traps from a single island population over a 14-year period, and genotyped flies at 469 single nucleotide polymorphisms (SNPs) using restriction-site associated DNA sequencing (RADSeq). Despite significant genetic differentiation (FST) between years, there was no evidence for genetic clustering within or across four sampling years between 2006 and 2020, suggesting a lack of population isolation. Sibship reconstructions from P. downsi collected from 10 Darwin’s finch nests sampled in 2020 showed evidence for shifts in reproductive behaviour compared to a similar genetic analysis conducted in 2004–2006. Compared with this previous study, females mated with fewer males, individual females oviposited fewer offspring per nest, but more unique females oviposited per nest. These findings are important to consider within reproductive control techniques, and have fitness implications for both parasite evolution and host fitness.

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Spatial bet hedging, thermal trade-offs and glyphosate: crickets integrate multivariate information during oviposition

Stahlschmidt

2022

Animal Behaviour

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Spatial Bet Hedging in Sand Fly Oviposition: Factors Affecting Skip Oviposition inPhlebotomus papatasiSand Flies

Cited by 5 publications

References 42 publications

Modeling the effects of climate change on the population dynamics of mosquitoes that are vectors of infectious diseases

Modeling the effects of climate change on the population dynamics of mosquitoes that are vectors of infectious diseases

Genetics reveals shifts in reproductive behaviour of the invasive bird parasite Philornis downsi collected from Darwin’s finch nests

Spatial bet hedging, thermal trade-offs and glyphosate: crickets integrate multivariate information during oviposition

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