Black Taylor N, Rastogi Aakriti, Saegert Abby, Dib Joseph, Moran Rachel L
Department of Biology, Texas A&M University, College Station, Texas, USA.
J Fish Biol. 2024 Mar;104(3):883-886. doi: 10.1111/jfb.15600. Epub 2023 Nov 14.
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.
在橙喉镖鲈（埃氏镖鲈属：Ceasia）和虹镖鲈（Etheostoma caeruleum）共同出现的地方，雄性更喜欢同种雌性而非异种雌性。雄性用于识别同种雌性的线索仍不清楚。我们进行了行为试验，以探究化学线索在同种识别中是否起作用。我们发现，来自三种橙喉镖鲈物种的雄性相较于对照，更倾向于与雌性气味相关联。我们的结果支持嗅觉在橙喉镖鲈进化枝的同种识别中的应用，并有助于我们理解可能促进物种识别并构成行为隔离进化基础的信号。
