Are two South-Western Atlantic wrasses involved in a case of social mimicry?

José Anchieta C.C. Nunes, Cláudio L.S. Sampaio, Antoine O.H.C. Leduc*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء


We investigated whether two South-Western Atlantic wrasses [Halichoeres penrosei (models) and Thalassoma noronhanum (mimics)] were involved in social mimicry. In mixed shoals, we recorded species-specific abundances and lengths, and qualitatively assessed these fishe’s behaviour. In all aggregations, mimics were fewer than models but of comparable body size. Furthermore, mimics faithfully followed model’s behaviour. As mimicry should provide benefits, we measured the flight initiation distance (FID) of mimics to an approaching predator. FID was negatively correlated with group size, suggesting that larger shoals were perceived as safer. These results suggest that social mimicry between these species takes place, and provide antipredation benefits.

اللغة الأصليةEnglish
الصفحات (من إلى)411-415
عدد الصفحات5
دوريةJournal of Ethology
مستوى الصوت39
رقم الإصدار3
المعرِّفات الرقمية للأشياء
حالة النشرPublished - سبتمبر 2021
منشور خارجيًانعم

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