Featured Research

from universities, journals, and other organizations

Florida Biologists Use Magnets To Keep Nuisance Crocodiles Away

Date:
February 26, 2009
Source:
Florida Fish and Wildlife Conservation Commission
Summary:
Magnets usually attract, but the Florida Fish and Wildlife Conservation Commission want magnets to do just the opposite.The biologists are studying if magnets can keep state-endangered American crocodiles from returning to situations where they are not welcome, primarily in neighborhoods in Miami-Dade and Monroe counties.

This captured crocodile has magnets taped to its head before translocation to another site.
Credit: FWC

Magnets usually attract, but the Florida Fish and Wildlife Conservation Commission (FWC) want magnets to do just the opposite. FWC biologists are studying if magnets can keep state-endangered American crocodiles from returning to situations where they are not welcome, primarily in neighborhoods in Miami-Dade and Monroe counties.

Crocodile-human interactions have increased as the crocodile population has recovered. One technique to resolve these conflicts is translocation. This involves capturing the crocodile and moving it to suitable crocodile habitat as far away as possible, in an attempt to keep it away from an area. However, translocation is seldom effective. FWC biologists have found that translocated crocodiles will travel an average of 10 miles per week to return to their capture site, in a practice called "homing." Others never make it because they are hit and killed by vehicles as they cross roads. Some may be killed by other crocodiles at the release site or during their journey back.

In an effort to break the "homing" cycle, FWC biologists have initiated a new study. Crocodile agents have been instructed to attach magnets to both sides of the crocodile's head at the capture site. It is hoped the magnets will disorient the crocodiles and disrupt their navigation, so they can't find their way back to the capture site. The magnets are removed from the crocodile's head upon release. Agents will also secure a colored tag to the crocodile's tail, so returning crocodiles can be identified later.

"Scientists in Mexico have reported success in using magnets to break the homing cycle," said Lindsey Hord, FWC crocodile response coordinator. "The results of the study are promising. If it proves successful here, we could gain an effective technique to resolve crocodile-human conflicts."

If a nuisance crocodile continues to return to the capture site, or its behavior presents an unacceptable risk to people, under certain circumstances, it could be removed from the wild and placed into captivity.

You should never approach a crocodile, and if you see one that concerns you, call the FWC's Statewide Nuisance Alligator Hotline at 866-FWC-GATOR (866-392-4286) to report the animal.


Story Source:

The above story is based on materials provided by Florida Fish and Wildlife Conservation Commission. Note: Materials may be edited for content and length.


Cite This Page:

Florida Fish and Wildlife Conservation Commission. "Florida Biologists Use Magnets To Keep Nuisance Crocodiles Away." ScienceDaily. ScienceDaily, 26 February 2009. <www.sciencedaily.com/releases/2009/02/090224215523.htm>.
Florida Fish and Wildlife Conservation Commission. (2009, February 26). Florida Biologists Use Magnets To Keep Nuisance Crocodiles Away. ScienceDaily. Retrieved September 29, 2014 from www.sciencedaily.com/releases/2009/02/090224215523.htm
Florida Fish and Wildlife Conservation Commission. "Florida Biologists Use Magnets To Keep Nuisance Crocodiles Away." ScienceDaily. www.sciencedaily.com/releases/2009/02/090224215523.htm (accessed September 29, 2014).

Share This



More Plants & Animals News

Monday, September 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
Argentina Worries Over Decline of Soybean Prices

Argentina Worries Over Decline of Soybean Prices

AFP (Sep. 27, 2014) The drop in price of soy on the international market is a cause for concern in Argentina, as soybean exports are a major source of income for Latin America's third largest economy. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Mama Bear, Cubs Hang out in California Backyard

Mama Bear, Cubs Hang out in California Backyard

Reuters - US Online Video (Sep. 27, 2014) A mama bear and her two cubs climb trees, wrestle and take naps in the backyard of a Monrovia, California home. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
'Crazy' Climate Forces Colombian Farmers to Adapt

'Crazy' Climate Forces Colombian Farmers to Adapt

AFP (Sep. 26, 2014) Once upon a time, farming was a blissfully low-tech business on Colombia's northern plains. Duration: 02:05 Video provided by AFP
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