Mass Extinction, Mayan Temples, and the Origins of Modern Reef Fish
BioScience Talks27 Heinä 2022

Mass Extinction, Mayan Temples, and the Origins of Modern Reef Fish

In this episode, we're joined by Alexandre C. Siqueira, a postdoctoral fellow at James Cook University in Townsville, Australia, where he works in the lab of Professor David Bellwood. He joined us to talk about his recent BioScience article on reef fish evolution, and how we're learning more about that topic from some recent findings in Mayan temples. The article's abstract follows.

During the excavation of Mayan tombs, little did the archaeologists know that the fossils they discovered in the tomb stones would fundamentally alter our understanding of the earliest origins of coral reef fishes. Located just 500 kilometers from the point where an asteroid impact reconfigured the world's biological systems 66 million years ago, we find the earliest origins of three typical reef fish groups. Their presence in Mexico just 3 million years after this impact finally reconciles the conflict between the fossil and phylogenetic evidence for the earliest origins of reef fishes. The incorporation of these fossils into a global reconstruction of fish evolutionary history reveals a new picture of the early biogeography of reef fishes, with strong Atlantic links. From locations associated with biological destruction and societal collapse, we see evidence of the origins of one of the world's most diverse and spectacular marine ecosystems: coral reefs.

Jaksot(176)

Transformative Change to Protect Biodiversity, Climate

Transformative Change to Protect Biodiversity, Climate

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Thomas Larsen and Patrick Roberts of the Max Planck Institute of the Science of Human History join us to discuss how we can learn about early hominins diets using stable isotope analysis. The abstract...

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While numerous studies have described the funding discrepancies faced by scientists at minority-serving institutions (MSIs), there is a relative paucity of information available about MSI-based scient...

10 Helmi 202239min

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Natural resource managers worldwide face a growing challenge: Global change increasingly propels ecosystems on strong trajectories toward irreversible ecological transformations. As once-familiar hist...

6 Tammi 202233min

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