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BioMetals

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The effects of the timing of exposure to cadmium on the oviposition behavior of Drosophila melanogaster

  • Andrea Bixler
  • Fred B. Schnee
Article

Abstract

Animals can greatly increase their fitness by choosing oviposition sites free from damaging substances such as the heavy metal cadmium (Cd). Previous research has shown that Drosophila melanogaster reared on uncontaminated media lay fewer eggs on substrates containing Cd. In this study, we examined the effects of prior exposure to Cd on oviposition site preference. We tested flies that had been exposed to Cd continuously from egg to adult, only during pre-adult stages, or for the 4 days of adulthood prior to testing. We found that flies avoid laying eggs on Cd-contaminated medium and also that flies exposed to Cd as adults laid significantly fewer eggs than controls never exposed to Cd. We did not observe consistent changes in oviposition as a result of pre-adult exposure alone. Our results suggest that the presence of cadmium in the environment, even at low doses and for short periods of time during adulthood, can harm the fitness of Drosophila melanogaster.

Keywords

Oviposition Cadmium Drosophila melanogaster Development 

Notes

Acknowledgements

We are grateful for the assistance of M. J. Bowman in Drosophila maintenance, to T. Hutchcroft and many students who washed fly bottles, and to B. Gomoll and S. Leibold for fulfilling numerous Interlibrary Loan requests. Funding was provided by the Iowa Science Foundation (Grant 14–16) to A.B.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of BiologyClarke UniversityDubuqueUSA
  2. 2.Department of BiologyLoras CollegeDubuqueUSA

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