| Literature DB >> 33795451 |
Mónica R Carvalho1,2, Carlos Jaramillo3,4,5, Felipe de la Parra6, Dayenari Caballero-Rodríguez1, Fabiany Herrera1,7, Scott Wing8, Benjamin L Turner1,9, Carlos D'Apolito1,10, Millerlandy Romero-Báez1,11, Paula Narváez1,12, Camila Martínez1, Mauricio Gutierrez1,13, Conrad Labandeira8,14,15, German Bayona16, Milton Rueda17, Manuel Paez-Reyes1,18, Dairon Cárdenas19, Álvaro Duque20, James L Crowley21, Carlos Santos22, Daniele Silvestro23,24.
Abstract
The end-Cretaceous event was catastrophic for terrestrial communities worldwide, yet its long-lasting effect on tropical forests remains largely unknown. We quantified plant extinction and ecological change in tropical forests resulting from the end-Cretaceous event using fossil pollen (>50,000 occurrences) and leaves (>6000 specimens) from localities in Colombia. Late Cretaceous (Maastrichtian) rainforests were characterized by an open canopy and diverse plant-insect interactions. Plant diversity declined by 45% at the Cretaceous-Paleogene boundary and did not recover for ~6 million years. Paleocene forests resembled modern Neotropical rainforests, with a closed canopy and multistratal structure dominated by angiosperms. The end-Cretaceous event triggered a long interval of low plant diversity in the Neotropics and the evolutionary assembly of today's most diverse terrestrial ecosystem.Entities:
Year: 2021 PMID： 33795451 DOI： 10.1126/science.abf1969
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728