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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...

Selective extinction against redundant species buffers functional diversity

Pimiento, Catalina ; Bacon, Christine D. ; Silvestro, Daniele ; Hendy, Austin ; Jaramillo, Carlos ; Zizka, Alexander ; Meyer, Xavier ; Antonelli, Alexandre

In: Proceedings of the Royal Society B: Biological Sciences, 2020, vol. 287, no. 2020-1931, p. 20201162

The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles performed by species, or functional richness, and the number of species per role, or functional redundancy. However, current knowledge is...

Carnivorans at the Great American Biotic Interchange: new discoveries from the northern neotropics

Forasiepi, Analia ; Soibelzon, Leopoldo ; Gomez, Catalina ; Sánchez, Rodolfo ; Quiroz, Luis ; Jaramillo, Carlos ; Sánchez-Villagra, Marcelo

In: Naturwissenschaften, 2014, vol. 101, no. 11, p. 965-974