Competition limits the ranges of mountain birds

A new study helps reveal why tropical mountain birds occupy such narrow elevation ranges, a mystery that has puzzled scientists for centuries. While many assumed temperature was responsible for these limited distributions, ...

Are coffee farms for the birds? Yes and no

Over 11 field seasons, between 1999 and 2010, ornithologist Cagan Sekercioglu trekked through the forests and coffee fields of Costa Rica to study how tropical birds were faring in a changing agricultural landscape. Through ...

Birds are more colourful closer to the equator, study proves

When European naturalists traveled to the tropics in the 1800s, they postulated that birds became more colorful closer to the equator—a theory that scientists confirmed on Monday using artificial intelligence technology.

Hummingbirds show up when tropical trees fall down

When the tree fell that October in 2015, the tropical giant didn't go down alone. Hundreds of neighboring trees went with it, opening a massive 2.5-acre gap in the Panamanian rainforest.

Will climate change leave tropical birds hung out to dry?

The future of the red-capped manakin and other tropical birds in Panama looks bleak. A University of Illinois research project spanning more than three decades and simulating another five decades analyzes how changes in rainfall ...

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