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Published January 22, 2015 | Version v1
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Data from: Plasmodium infection brings forward mosquito oviposition

Authors/Creators

  • 1. Maladies Infectieuses et Vecteurs : Ecologie, Génétique, Evolution et Contrôle
  • 2. French National Centre for Scientific Research

Description

Invertebrate hosts often bring forward their reproductive effort in response to a parasitic infection. This is widely interpreted as a host-driven response aimed at compensating for the expected losses in future fitness as a result of parasitism. Here we report that mosquitoes bring forward their oviposition schedule when they are infected with Plasmodium, a parasite known to severely curtail mosquito fecundity. This response could aim at compensating for a negative time-dependent effect of the parasite on mosquito fitness, as infected mosquitoes seem to display a strong and progressive decrease in the quality of the eggs they lay. In addition, we show that this shift in oviposition date is dependent on mosquito strain: a comparison of several isogenic mosquitoes strains, one insecticide-susceptible and two insecticide-resistant ones, reveals that only the former shift their oviposition strategy when infected. This pattern suggests the existence of a costly host-driven response to parasitism, as insecticide-resistant mosquitoes have been shown to be in generally poorer condition.

Notes

Description of the columns headers
oviposition.data (first tab in the Excel file) has 12 columns : - mosquito number - the experimental cage the mosquito comes from (where he bloodfed) - whether the bird he fed on was infected or not : infection - the identity of that bird (ring color and number) - the parasitaemia of that bird (when he is infected) at the acute phase of the infection (10 days after the infection onset) : J10 - the color of the mosquito (to identify which strains it belongs to) - mosquito strain - the egg-laying date (to which 6 days should be removed to get the graphs in the article) : lay - the number of eggs laid by the females : eggs - eggs hatching date : hatch - the number of larvae hatched from those eggs - if and when mosquito died in the water before egg laying : drown oocyst.data (second tab) has 5 columns : - the experimental infected cage the mosquito comes from (where he bloodfed) - mosquito strain (bas4 = SA4B4, aslab = SLAB, csr = SR) - the number of oocysts counted after dissection - the number of eggs laid by the females : eggs - the number of larvae hatched from those eggs
Oviposition.data.xlsx

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Related works

Is cited by
10.1098/rsbl.2014.0840 (DOI)