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- W3012531352 endingPage "e0230283" @default.
- W3012531352 startingPage "e0230283" @default.
- W3012531352 abstract "Polychlorinated biphenyls (PCBs) are worldwide chemical pollutants that have been linked to disrupted reproduction and altered sexual behaviour in many organisms. However, the effect of developmental PCB-exposure on adult passerine reproductive behaviour remains unknown. A commercial PCB mixture (Aroclor 1242) or an estrogenic congener (PCB 52) were administered in sublethal amounts to nestling zebra finches (Taeniopygia guttata) in the laboratory to identify effects of developmental PCB-exposure on adult zebra finch reproductive parameters. Results indicate that although traditional measures of reproductive success are not altered by this PCB dosage, PCBs do alter sexual behaviours such as male song and nesting behaviour. Males treated with PCB 52 in the nest sang significantly fewer syllables than control males, while females treated with Aroclor 1242 in the nest showed the strongest song preferences. PCB treatment also caused an increase in the number of nesting attempts and abandoned nests in the Aroclor 1242 treatment relative to the PCB 52 treatment, and offspring with control fathers fledged significantly earlier than those with fathers treated with Aroclor 1242. Behavioural differences between males seem to best explain these reproductive effects, most notably aggression. These findings suggest that sublethal PCB-exposure during development can significantly alter key reproductive characteristics of adult zebra finches, likely reducing fitness in the wild." @default.
- W3012531352 created "2020-03-23" @default.
- W3012531352 creator A5002662689 @default.
- W3012531352 creator A5027028313 @default.
- W3012531352 creator A5027695315 @default.
- W3012531352 creator A5071899551 @default.
- W3012531352 date "2020-03-19" @default.
- W3012531352 modified "2023-09-30" @default.
- W3012531352 title "Developmental polychlorinated biphenyl exposure influences adult zebra finch reproductive behaviour" @default.
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