Duke study examines bluebird evolution

Apr 12, 2006

Duke University evolutionary ecologists in Durham, N.C., are offering findings that might provide insight into how evolution operates.

The Duke study reports evidence that aggressive male western bluebirds out-compete less aggressive males for preferred breeding territories. In the process, lead researcher Renee Duckworth found more aggressive and milder-mannered birds also tended to breed in different settings that favor different body types.

"By selecting the environment in which they live, animals can actively affect the natural selection they experience," Duckworth said. "The main message of this study is that the ability of organisms to choose their environment needs to be made a more explicit part of evolutionary theory."

The full research appears online in the journal Proceedings of the Royal Society B.

Copyright 2006 by United Press International

Explore further: Deciding on a purchase: Does it matter if you look up or down while shopping?

add to favorites email to friend print save as pdf

Related Stories

Fashionable or geeky—the modern watch dilemma

55 minutes ago

It's Milan fashion week, you've got tickets to the catwalk shows and an outfit to die for, but which watch to wear? A chunky smartwatch or chic ticker that can't tell the time?

Recommended for you

Thomas Edison's 'lost' idea: A device to hear the dead

2 hours ago

One of Thomas Edison's little-known ambitions was to build a device to hear the voices of the dead, according to a nearly lost chapter of the inventor's memoirs which is being republished in France this week.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.