First evidence that birds cultivate plants

Satin Bowerbird© Brett Donal
Satin Bowerbird, Ptilonorhynchus violaceus, male

The Universities of Exeter (UK), Postdam (Germany), Deakin and Queensland (Australia) announced the discovery of the first known evidence that birds cultivate plants for nonfood purposes that will be published in the April 24, 2012 issue of Current Biology that was reviewed at the Eureka Alert web site on April 23, 2012.

Male bowerbirds in Taunton National Park in Queensland were found to be collecting the fruit of the potato bush (Solanum ellipticum) to increase the appeal of the male bowerbird’s bowers to female bowerbirds. The bright purple flowers and green fruit of the potato bush increased the attractiveness of a bower to a potential mate.

The bowerbirds were not selecting spots with more colorful plants. Instead, the bowerbirds selectively collected potato bush fruit to grow a decorative garden around the bird’s bower that would hopefully attract a notoriously finicky female bowerbird.

The male bowerbirds go as far as clearing the area around their nest prior to depositing the potato bush fruit. The location and perhaps the bird excrement increases the greenness of the potato bush fruit. The greener fruit is more likely to attract females according to the researchers.

This discovery is the first known intentional use of plants by a non human species for a purpose other than food.

Views: 0

You can skip to the end and leave a response. Pinging is currently not allowed.

Leave a Reply

Powered by WordPress | Designed by: Premium WordPress Themes | Thanks to Themes Gallery, Bromoney and Wordpress Themes