Featured Research

from universities, journals, and other organizations

Electronic Eggs Used To Help Save Threatened African Bird

Date:
July 31, 2007
Source:
Smithsonian National Zoological Park
Summary:
This is an important summer for kori bustards at the Smithsonian's National Zoo. Four chicks of this threatened African bird have hatchedin June and July. Along with the bumper crop of baby birds is a bumpercrop of new information for scientists working to preserve the species,thanks to an electronic egg that transmits real-time incubation datafrom the nest.

Kori bustard chicks A biologist at Smithsonian's National Zoo holds two kori bustard chicks on June 26, 2007. The chicks, Pipe and Tuza, hatched at the Zoo June 23 and 24. Kori bustards are the world's heaviest flying bird and the chicks could grow to be as large as 35 pounds. The species, native to eastern and southern Africa is in decline and faces threats to its survival. The National Zoo is one of two zoos in the nation consistently breeding kori bustards in hopes of guaranteeing a secure future for them.
Credit: Jessie Cohen

This is an important summer for kori bustards at the Smithsonian’s National Zoo. Four chicks of this threatened African bird have hatched in June and July. Along with the bumper crop of baby birds is a bumper crop of new information for scientists working to preserve the species, thanks to an electronic egg that transmits real-time incubation data from the nest.

The telemetric egg, placed in the nest after the mother has laid her eggs, contains sensors that record temperatures on four quadrants of the egg’s surface as well as in the egg’s interior. Motion detectors record how frequently the mother turns the egg during incubation. The data are recorded 24 hours a day and downloaded to a computer every 48 hours. National Zoo staff use the information to mimic natural incubation in a controlled setting in the lab.

“It’s really a breakthrough. This is data we couldn’t get any other way,” said National Zoo biologist Sara Hallager. “The information we gather helps us both understand more about the biology of these birds and how to better incubate them artificially.”

Understanding the normal activities of breeding is essential for improving husbandry practices for a species. But much of this basic biological information remains unknown for many threatened and endangered species. Temperatures and turning frequencies for artificially incubating eggs can sometimes rely as much on guesswork as on hard data. Improving the success rate of breeding not only increases the numbers of birds in captive populations, but also helps maintain their genetic diversity, which is essential for a healthy population.

Since it began its kori bustard breeding program in 1997, the National Zoo has bred and raised to adulthood nearly 40 individual birds, which have been shared with other zoos. The four eggs hatched this summer have some desired genetic diversity. The two eggs hatched in June are from a well-established genetic line; one of the eggs hatched in July is from a female not previously bred.

“For captive populations like these, the more genetic diversity the better,” Hallager said. “It’s really exciting.”

Hallager heads the Kori Bustard Species Survival Plan administered by the Association of Zoos and Aquariums. Species Survival Plans, or SSPs, are population management and conservation programs for selected species in North American zoos and aquariums. The SSPs are designed to maintain healthy and self-sustaining populations that are genetically diverse and demographically stable.

Telemetric eggs like the ones used for the National Zoo’s kori bustards have been used for whooping cranes at the Calgary Zoo in Alberta, Canada, and for waterfowl at the Saint Louis Zoo, but the technique is not yet widely applied. In addition to the kori bustards, the National Zoo also has two telemetric eggs in flamingo nests. Telemetric eggs are not yet available in sizes smaller than duck-sized eggs; but, according to Hallager, eggs for smaller species should be technologically feasible in the future.

Kori bustards, native to eastern and southern Africa, are the heaviest birds capable of flight, with males reaching up to 40 pounds; still, they are primarily ground-dwelling birds, inhabiting grasslands and feeding on an omnivorous diet. Wild populations are threatened by habitat loss and poaching for their meat and feathers.

Only the National Zoo and eight other institutions in the world have successfully bred kori bustards in captivity. There are four adult kori bustards on display at the National Zoo, which may be seen by visitors at the outdoor Bird House exhibit.


Story Source:

The above story is based on materials provided by Smithsonian National Zoological Park. Note: Materials may be edited for content and length.


Cite This Page:

Smithsonian National Zoological Park. "Electronic Eggs Used To Help Save Threatened African Bird." ScienceDaily. ScienceDaily, 31 July 2007. <www.sciencedaily.com/releases/2007/07/070726175118.htm>.
Smithsonian National Zoological Park. (2007, July 31). Electronic Eggs Used To Help Save Threatened African Bird. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2007/07/070726175118.htm
Smithsonian National Zoological Park. "Electronic Eggs Used To Help Save Threatened African Bird." ScienceDaily. www.sciencedaily.com/releases/2007/07/070726175118.htm (accessed September 23, 2014).

Share This



More Plants & Animals News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Will Living Glue Be A Thing?

Will Living Glue Be A Thing?

Newsy (Sep. 23, 2014) Using proteins derived from mussels, engineers at MIT have made a supersticky underwater adhesive. They're now looking to make "living glue." Video provided by Newsy
Powered by NewsLook.com
Raw: Tiger Kills Man at India Zoo

Raw: Tiger Kills Man at India Zoo

AP (Sep. 23, 2014) A white tiger killed a young man who climbed over a fence at the New Delhi zoo and jumped into the animal's enclosure on Tuesday, a spokesman said. (Sept. 23) Video provided by AP
Powered by NewsLook.com
Cat Lovers Flock to Los Angeles

Cat Lovers Flock to Los Angeles

AFP (Sep. 22, 2014) The best funny internet cat videos are honoured at LA's Feline Film Festival. Duration: 00:56 Video provided by AFP
Powered by NewsLook.com
Washed-Up 'Alien Hairballs' Are Actually Algae

Washed-Up 'Alien Hairballs' Are Actually Algae

Newsy (Sep. 22, 2014) Green balls of algae washed up on Sydney, Australia's Dee Why Beach. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins