Asymmetrical exchange
Unequal migration across the land-bridge millions of years ago
October 06, 2020
The disproportionate extinction of South American mammals when the Americas collided is still evident today
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Displaying 30 of 52 results.
Genetics of shrinking
First DNA extracted from modern, ancient and fossil tropical shells
February 23, 2021
The next time you eat seafood, think about the long-term effects. Will consistently eating the biggest fish or the biggest conch, mean that only the smaller individuals will have a chance to reproduce?
Steve Yanoviak
The ecological effects of lightning in a tropical forest
March 02, 2021
Lightning is common in the tropics, but its ecological effects in tropical forests are poorly understood. Steve Yanoviak, STRI research associate and professor at the University of Louisville, will summarize the basic physics of lightning, how we study lightning in Panama and the importance of lightning as an agent of tropical tree mortality.
Martina and the Bridge of Time
A young comic book heroine travels through Panama’s deep history
March 31, 2021
The new graphic novel tells the story of the Isthmus’ formation and evolution through the adventures of a young Panamanian girl.
Flowers!
How the Chicxulub Impactor gave rise to modern rainforests
April 01, 2021
About 66 million years ago, a huge asteroid crashed into what is now the Yucatan, plunging the Earth into darkness. The impact transformed tropical rainforests, giving rise to the reign of flowers.
Catalina Pimiento
The fate and function of marine megafauna
June 11, 2021
Large marine animals generally have unique functions for the ecosystem. They are also more susceptible to extinction when their habitats are altered. Around 3 million years ago, at least one third of the marine megafauna became extinct, possibly due to sea level fluctuations and the contraction of coastal habitats. This also led to a loss of some of their ecological functions. In the current era, many large marine animals are deemed at risk of extinction. What will be the consequences of this potential loss?
Shark dandruff
How can “shark dandruff” contribute to coral reef conservation?
July 06, 2021
Sharks’ bodies are covered with tiny, tooth-like scales called denticles. Shed denticles settle to the ocean floor, where they remain in sediments for years and can be used to understand which sharks lived on a reef in the past.
Paleo Nut
Is this the oldest cashew on the isthmus?
August 03, 2021
A fossil tree discovery in Panama offers clues regarding the establishment of the genus Anacardium in Central and South America
Special Feature
Scientists share lessons about the Anthropocene’s impact on tropical forests
September 28, 2021
Nine articles explore impacts of ancient human societies on tropical ecosystems, revealing the importance of incorporating the paleosciences, social sciences and Indigenous traditional knowledge to solve contemporary environmental challenges.
Crabosaur
Unique dinosaur-era fossil bridges a gap in the evolution of crabs
October 21, 2021
The oldest and most complete fossil crab ever discovered suggests that these animals ventured onto land at least 25 to 50 million years earlier than previously thought
