The asteroids that wiped out dinosaurs at the end of the Cretaceous had wiped out many life on Earth. And as we know how the story goes, a team of scientists is now adding a new chapter. One set by flowers In fact, scientists say the seminal space rocks that bathe the Earth with Dino’s death are what made our home world host the lush and blooming rainforest for the first time we know it today.
A team of scientists working at the Smithsonian Tropical Research Institute (STRI) in Panama set out to decipher how tropical rainforests have changed after severe ecological disturbances, the Chicxulub Impactor, which is now wiping out 45% of the plants in Colombia. And covering the world in complete darkness is a good opportunity for understanding
Don Davis / NASA
To study this transformation, scientists studied tropical plant fossils from locations in Central and South America. Including more than 50,000 pollen fossils and 6,000 leaf fossils from both before and after impact. When compared? The team found that the executioner Dino transformed a sparse, pine-rich rainforest into today’s denser, taller rainforest. The same group of brightly colored bromilladas with hanging orchids.
Scientists, who described their findings in a study recently published in the journal science (Which comes from BBC News) said the fossil record indicates the summits of America’s tropical forests evolved from relatively open to closed and layered. On the other hand, they said this increased the vertical stratification. up And resulting in more diverse plant growth patterns
The three central theories in which scientists explain that the change is related to both the impact of asteroids and the absence of dinosaurs. Scientists say the first theory is that dinosaurs still “open” their forests by feeding and moving through them. Second: the ashes falling from the impact provide a fertile tropical soil, giving it an advantage over faster-growing flowering plants. And, finally, extinction, the privilege of the adjutant species, allowing the flowering plant to dominate.
Kurt Ed Blom
“Our study follows a very simple question: How evolved tropical rainforests,” said Monica Carvalho, botanist and lead author of the study, in a STRI press release. Fast – Geologically speaking, tropical ecosystems don’t just come back. They will be replaced and the process is very time consuming. ”
Featured Image: Kirt Edblom
Post, Dino-Killing asteroids may have formed the rainforest of Earth, making their first appearance in Nerdist.