Journal article

An androgenic endocrine disruptor alters male mating behavior in the guppy (Poecilia reticulata)

Michael G Bertram, Minna Saaristo, Tiarne E Ecker, John B Baumgartner, Bob BM Wong



Hormonally active chemical pollution threatens human and wildlife populations globally. However, despite the well-established capacity of endocrine-disrupting chemicals (EDCs) to alter reproductive traits, relatively few studies have examined the impacts of EDCs on mechanisms of sexual selection. This study investigated the effects of short-term exposure to an environmentally realistic level of 17β-trenbolone-a potent anabolic steroid used in livestock production worldwide-on male mate preference, reproductive behavior, and morphology in the guppy (Poecilia reticulata). Male guppies prefer to mate with larger females because such females are generally more fecund. Hence, males gain direct fi..

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University of Melbourne Researchers


Awarded by Academy of Finland Postdoctoral Researcher Fellowship

Awarded by Australian Research Council

Funding Acknowledgements

This research was funded by an Australian Postgraduate Award scholarship (to M.G.B.), student research grants from the Australasian Society for the Study of Animal Behaviour (to M.G.B.), a student research award from the Ecological Society of Australia (to M.G.B.), the Australian Society for Fish Biology's Barry Jonassen Award (to M.G.B.), a university student grant from the Australian Wildlife Society (to M.G.B.), an Academy of Finland Postdoctoral Researcher Fellowship (265629 to M.S.), and Discovery Grants from the Australian Research Council (DP130100385 and DP160100372 to B.B.M.W.).