Journal
JOURNAL OF FISH BIOLOGY
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1111/jfb.15600
Keywords
behavior; chemical cues; conspecific recognition; darters; mate choice; olfaction
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Male orangethroat darters and rainbow darters show a preference for conspecific females and use olfaction for conspecific identification. This study provides insights into the signals that facilitate species recognition and behavioral isolation.
Where orangethroat darters (Etheostoma: Ceasia) and rainbow darters (Etheostoma caeruleum) co-occur, males prefer conspecific over heterospecific females. The cues males use to identify conspecific females remain unclear. We conducted behavioral trials to ask whether chemical cues function in conspecific recognition. We found that males from three orangethroat darter species preferentially associate with female scent over a control. Our results support the use of olfaction in conspecific identification in the orangethroat clade and contribute to our understanding of signals that may facilitate species recognition and underlie the evolution of behavioral isolation.
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