Zoo officials hope chilling frogs will stimulate their reproductive drive

Scientists at the San Diego Zoo are chilling endangered frogs to encourage breeding, the zoo announced Friday.

The scientists at the zoo’s Institute for Conservation Research placed 24 mountain yellow-legged frogs into special refrigerators cooled to 40 degrees on Jan. 1 and will keep them there to hibernate until next month.

The frogs tend to hibernate in cold weather and mate when they wake up. Females in the wild lay up to 200 eggs when the snow begins to melt.

There are only about 200 mountain yellow-legged adult frogs remaining in the San Bernardino, San Gabriel and San Jacinto mountains, according to Adam Backlin, a U.S. Geological Survey ecologist.

The San Diego Zoo has 61 adult frogs.

“We hope that by simulating the cold of the mountains where this critically endangered frog has been found, the San Diego Zoo will be able to increase the mountain yellow-legged frog population,” said Jeff Lemm, a research coordinator at the zoo. “The tadpoles we raise will be reintroduced into remote mountainous areas of Southern California where these frogs were found historically.”

Amphibians are on the decline globally because of habitat loss, non-native predators, climate change and the spread of the deadly chytrid fungus.

There are three types of frogs or toads on the federal endangered species list in Southern California.

Related posts:

  1. Officials say increase water conversation immediately
  2. SRI eliminating the controversy in stem cell research
  3. Enjoy the sun; more rain likely
  4. Rain expected to continue
  5. Colder weather, rain expected

Short URL: http://www.delmartimes.net/?p=8088

Posted by on Mar 5, 2010. Filed under Archives. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

Leave a Reply

Archives

Facebook

Bottom Buttons 1

Bottom Buttons 2

Bottom Buttons 3

Bottom Buttons 4

Bottom Buttons 5

Bottom Buttons 6

LA JOLLA NEWS

RANCHO SANTA FE NEWS

RANCHO SANTA FE NEWS

RSS RANCHO SANTA FE NEWS

  • Rancho Santa Fe resident among seven new trustees joining UC San Diego Foundation Board
    Proactive stewards, higher education advocates and expert financial strategists, UC San Diego Foundation trustees play an important role in cultivating community partnerships and garnering resources to support UC San Diego research, teaching and public service initiatives. Trustees govern the Foundation, including managing net assets totaling $717 million, i […]
  • Rancho Fire District to recognize Fire Prevention Week with two events
    National Fire Prevention Week is Oct. 5-11, and the Rancho Santa Fe Fire Protection District (RSFFPD) will host two community events to recognize the annual awareness campaign. The first will be an Open House from 9 a.m. to noon on Saturday, Oct. 4 at RSF Fire Station 2, 16930 Four Gee Road in 4S Ranch. Guests will be able to tour the fire station and traini […]
  • New Rancho Santa Fe Library Branch Manager welcomes community input
    Rancho Santa Fe Library’s new Branch Manager Haley Kwon has been charmed by the village’s “sweet, down-home” character, the simple pleasure of visiting the local library and people’s enjoyment of a slower speed of time. “It’s a small town and the library is a place for people to connect,” Kwon said. “People have a different sense of time here, they come in t […]