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    Université de Fribourg

    Disproportionate extinction of South American mammals drove the asymmetry of the Great American Biotic Interchange

    Carrillo, Juan D. ; Faurby, Søren ; Silvestro, Daniele ; Zizka, Alexander ; Jaramillo, Carlos ; Bacon, Christine D. ; Antonelli, and Alexandre

    In: Proceedings of the National Academy of Sciences, 2020, vol. 117, no. 42, p. 26281–26287

    The biological interchange between North and South America associated with the formation of the Isthmus of Panama is key to defining current gradients of species diversity. A major gap in our understanding of the interchange is its asymmetry, where mammals of North American origin attained higher diversity in South America than vice versa. The prevailing view is that this asymmetry resulted...