Smithsonian Tropical Research Institute

Fungi in Barro Colorado Island

How Even the Smallest Organisms Can Shape Entire Ecosystems and Inspire Lasting Change

From sonic tomographies to global biodiversity negotiations, this journey through research, resilience, and connection reveals how small organisms, death and decay bring about new life

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Possible Caterpillar-Like Baby Hummingbird Discovered in Panama

A baby hummingbird hatches. But it has fluffy feathers on its back, looking just like a dangerous caterpillar. Could this be something unusual among hummingbirds?

Dendrology course field trip

A New Course by ForestGEO Experts Teaches the Biodiversity of Panamanian Forests

Through a course in dendrology, the study of the taxonomy of woody plants in the absence of flowers or fruits, two experts in forest diversity seek to leave a legacy of knowledge for future generations

Carollia perspicillata

Bat Salad: First Record of Bats Eating Entire Leaves and Not Spitting Them Out

Bats are known to chew and spit out leaves, like humans chew and spit out tobacco or coca, but this is the first continuous recording of a bat eating entire leaves

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'Scientists for Scientists' Wartime Grant Brings Ukrainian Bat Biologists to Panama

Over the last two years, staff at the Ukrainian Bat Rehabilitation Center have worked to save bats from the dangers of the Russian full-scale invasion. Now, they join researchers at the Smithsonian Tropical Research Institute to study bat behavior in Panama

Imama

Between Pasture and Forest: The Crusade to Protect the Jaguar in Panama

Fundación Yaguará Panamá not only leads the protection of the largest feline in the Americas in cattle ranching areas of the country, but also promotes gender equality by actively involving women in key roles in the project, both at the scientific and community levels.

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Smarter Foragers Do Not Forage Smarter

Why do primates have big brains? In the Panamanian rainforest, scientists pitted large-brained primates against smaller-brained mammals to find out who was the smartest forager.

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Red Flags: I'm Not the Bug for You

Recent research conducted in Panama has revealed that the waving behavior exhibited by matador bugs, with their attractive hind-leg flags, are neither mating displays nor distraction tactics against predators, as previously thought.

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A 17-Year Study Reveals How Dead Leaves Are a Tropical Forest Lifeline

A 17-year experiment in Panama revealed that the process of leaves falling and decomposing on the ground provides nutrients to the soil that help promote tree growth in otherwise infertile tropical forests.

Dr. Ruth Bennett holding Summer Tanager

Drink Coffee, Eat Chocolate, Save Birds!

A new initiative will make it easier for regional coffee and chocolate industries in Latin America to join the global movement to produce sustainable food.

Tree Frog

Barro Colorado Island, One Hundred Years of Science and Discoveries

Five Panamanian scientists share a glance at the experience of working in the tropical biologist’s dream, Barro Colorado Island

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A Yellow Submarine Explores the Depths of the Panamanian Pacific

Six scientists from Panama, Costa Rica, Colombia and Ecuador spent two weeks exploring the recently expanded Cordillera de Coiba marine protected area, an unknown region to science. This is what they saw.

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Accidental Slingshot Wound to a Tree Reveals Unexpected Ant Behavior

Despite significant movement restrictions during the first wave of the pandemic in Panama City, a group of curious high school students roamed their neighborhood drilling holes into Cecropia trees and documenting how Azteca alfari ants responded to damage to their host plant.

As part of her fieldwork, Fernandez habituated the bats to her presence near their day-roosts, obtaining observations of their natural behaviors and recording their vocalizations in a completely undisturbed environment during months. (Ana Endara)

Similar to Human Babies, This Bat Species Learns to Communicate Through Babbling and Vocal Imitation

Long-term monitoring of the bat species Saccopteryx bilineata in their natural setting revealed that pups display babbling behavior strikingly similar to that of human infants

From the surface, the havoc caused on a coral reef by a layer of low-oxygen water was barely evident.

Watch What Happens When A Coral Reef Can't Get Enough Oxygen

In September, 2017, divers observed a massive 'dead zone' rising to envelop Caribbean coral reefs in Bocas del Toro, Panama. Smithsonian post-docs formed a team to understand why reef animals were fleeing, and the role of humans in the history of hypoxia.

Heather Stewart, former PhD fellow at STRI, is very involved in local and global initiatives related to the conservation of coastal ecosystems in the Caribbean, such as mangrove forests.

Caribbean Mangrove Forests May Serve as Coral Shelters

In the Bocas del Toro mangrove forests, in Panama’s Caribbean coast, an unexpected phenomenon may be helping stressed out corals cope with climate change. Credit: Jorge Alemán

In her lab at the Smithsonian Tropical Research Institute, Annette Aiello usually rears caterpillars to find out which butterflies they become as adults, but in this case, she focused her attention on cicadas emerging from a houseplant on her porch in Arraijan, Panama. (J. Aleman/STRI)

A Smithsonian Researcher Caged and Reared Cicadas From Nymphs to Adulthood

An observation of an insect exoskeleton on a potted plant may lead to the identification of a new insect species

Happy Earth Day 2021! Hillary Hughes, Panamanian actress, visits the Smithsonian Tropical Research Institute's Agua Salud Project during the filming of videos in Spanish and English to share hope for the success of tropical forest reforestation informed by the largest experiment of its kind in the tropics. (video still)

Watch These Two Videos and You Will Feel More Hopeful About the Future of Tropical Forests

The Agua Salud Project's new bilingual videos share the results of tropical reforestation experiments at the Smithsonian Tropical Research Institute in Panama.

The purple-flowered crown of Dipteryx oleifera, one of the biggest trees on Barro Colorado Island, Panama, towers above the forest. Big trees may be most exposed to the effects of climate change: more frequent and severe drought, and the high winds and lightning of monster storms. (Evan Gora)

How Will the Biggest Tropical Trees Respond to Climate Change?

The death of these giants would have a major impact on the forest, but because they are few and far between, almost nothing is known about what causes them to die

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