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- W2095194802 endingPage "e30611" @default.
- W2095194802 startingPage "e30611" @default.
- W2095194802 abstract "Male mating signals, including ornaments and courtship displays, and other sexually selected traits, like male-male aggression, are largely controlled by sex hormones. Environmental pollutants, notably endocrine disrupting compounds, can interfere with the proper functioning of hormones, thereby impacting the expression of hormonally regulated traits. Atrazine, one of the most widely used herbicides, can alter sex hormone levels in exposed animals. I tested the effects of environmentally relevant atrazine exposures on mating signals and behaviors in male guppies, a sexually dimorphic freshwater fish. Prolonged atrazine exposure reduced the expression of two honest signals: the area of orange spots (ornaments) and the number of courtship displays performed. Atrazine exposure also reduced aggression towards competing males in the context of mate competition. In the wild, exposure levels vary among individuals because of differential distribution of the pollutants across habitats; hence, differently impacted males often compete for the same mates. Disrupted mating signals can reduce reproductive success as females avoid mating with perceptibly suboptimal males. Less aggressive males are at a competitive disadvantage and lose access to females. This study highlights the effects of atrazine on ecologically relevant mating signals and behaviors in exposed wildlife. Altered reproductive traits have important implications for population dynamics, evolutionary patterns, and conservation of wildlife species." @default.
- W2095194802 created "2016-06-24" @default.
- W2095194802 creator A5000030562 @default.
- W2095194802 date "2012-02-01" @default.
- W2095194802 modified "2023-09-28" @default.
- W2095194802 title "Environmentally Realistic Exposure to the Herbicide Atrazine Alters Some Sexually Selected Traits in Male Guppies" @default.
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- W2095194802 doi "https://doi.org/10.1371/journal.pone.0030611" @default.
- W2095194802 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3270011" @default.
- W2095194802 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22312428" @default.
- W2095194802 hasPublicationYear "2012" @default.