17alpha-ethinylestradiol reduces the competitive reproductive fitness of the male guppy (Poecilia reticulata).

@article{Kristensen200517alphaethinylestradiolRT,
  title={17alpha-ethinylestradiol reduces the competitive reproductive fitness of the male guppy (Poecilia reticulata).},
  author={Thomas Greve Kristensen and Erik Baatrup and Mark Bayley},
  journal={Biology of reproduction},
  year={2005},
  volume={72 1},
  pages={150-6}
}
Whether endocrine disruption in an individual male is actually translated into reduced reproductive success in a natural competitive environment is extremely difficult to predict. Here, we have used paternity analysis to provide new information on the ability of an endocrine disruptor to deleteriously affect male guppy reproductive fitness by including the effect of intermale competition. Groups of male guppies were exposed to 10.5, 44.4, or 112 ng/L of the synthetic estrogen 17alpha… CONTINUE READING