Evolutionary ecotoxicology of pesticide resistance : a case study in Daphnia

© Springer Science+Business Media, LLC 2011

Bibliographische Detailangaben
Veröffentlicht in:Ecotoxicology (London, England). - 1992. - 20(2011), 3 vom: 01. Mai, Seite 543-51
1. Verfasser: Jansen, Mieke (VerfasserIn)
Weitere Verfasser: Coors, Anja, Stoks, Robby, De Meester, Luc
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Ecotoxicology (London, England)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review Pesticides Carbaryl R890C8J3N1
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520 |a Natural populations that are exposed to pesticides in their environment may at the same time be exposed to natural stressors like parasites and predators, which may interact with pesticide exposure. This may not only impact target pest species but also a wide variety of non-target species. This review reports on a joint research program in the water flea Daphnia magna, a non-target species often used as model organism in ecology and ecotoxicology. The focus is on different aspects that are of key importance to understand the evolutionary ecology of pesticide exposure: (1) the capacity of natural populations to genetically adapt to pesticide exposure (2) the added complexity of synergistic effects caused by simultaneous exposure to natural stressors, and (3) the potential interference of evolutionary costs of adaptation to pesticide exposure. Our results showed that natural populations were able to rapidly evolve resistance to the pesticide carbaryl but at the expense of fitness costs. Individuals selected for carbaryl resistance had higher survival rates when exposed to the pesticide but also a greater susceptibility to the challenge imposed by the bacterial endoparasite Pasteuria ramosa. The evolved resistance to carbaryl was in some cases only expressed in the absence of fish kairomones. Further, it became clear that the responses to both exposure to single and combined stressors was for several life history variables strongly dependent upon past exposure to carbaryl. This indicates that past exposures to pesticides are important and can not be neglected when evaluating responses to current stressors 
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700 1 |a Coors, Anja  |e verfasserin  |4 aut 
700 1 |a Stoks, Robby  |e verfasserin  |4 aut 
700 1 |a De Meester, Luc  |e verfasserin  |4 aut 
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