Featured Research

from universities, journals, and other organizations

First Ever Census Of Jaguars Completed; New Technique Could Determine Accurate Population Of Big Cat

Date:
July 29, 2002
Source:
Wildlife Conservation Society
Summary:
Using a methodology developed to count tigers half a world away, a team of scientists from the Bronx Zoo-based Wildlife Conservation Society has completed the first-ever census of one of the world's most elusive big cats – the jaguar. The scientists presented their findings at the annual meeting of the Society of Conservation Biology, which met in Canterbury, England last week.

NEW YORK (July 25, 2002) -- Using a methodology developed to count tigers half a world away, a team of scientists from the Bronx Zoo-based Wildlife Conservation Society has completed the first-ever census of one of the world's most elusive big cats – the jaguar. The scientists presented their findings at the annual meeting of the Society of Conservation Biology, which met in Canterbury, England last week.

The team looked at a population of jaguars living in the Cockscomb Reserve, a dense tropical rain forest in Belize, which WCS helped establish as the world's first jaguar reserve in 1986. Using a grid of remote camera traps set along game trails, the team followed a rigid statistical analysis to determine population density. They now estimate that 14 jaguars live in a 55-square-mile area – a density of big cats comparable to some of the most productive tiger habitats in India.

According to the WCS scientists, the new methodology can now be applied to other areas throughout the jaguar's sprawling range from Argentina to the southwestern United States. It can finally determine not only how many cats are out there, but more importantly, where conservationists should focus efforts to preserve jaguar populations.

"Up to this point, scientists have based their efforts as to where to protect jaguars largely on anecdotal evidence," said WCS conservationist Dr. Linde Ostro, who along with her husband Dr. Scott Silver, conducted the Cockscomb census. "With this new methodology, conservationists can focus often limited resources in the best areas."

The camera trap methodology to census tigers began ten years ago in India, when WCS conservationist Dr. Ullas Karanth used the cat's stripe pattern -- unique to each individual -- to count animals captured on film. A jaguar's spotting pattern is also unique, which allowed Drs. Ostro and Silver to analyze how many animals frequented their study area.

"The methodology can be used for any cat with a unique striping or spotting," Dr. Ostro said. "It's much more efficient than collaring individual animals, then tracking them for years."

The research was funded in part by Jaguar North America as part of a five-year one million-dollar grant to WCS's Jaguar Conservation Program, which is working to save jaguars throughout their range.


Story Source:

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


Cite This Page:

Wildlife Conservation Society. "First Ever Census Of Jaguars Completed; New Technique Could Determine Accurate Population Of Big Cat." ScienceDaily. ScienceDaily, 29 July 2002. <www.sciencedaily.com/releases/2002/07/020729074948.htm>.
Wildlife Conservation Society. (2002, July 29). First Ever Census Of Jaguars Completed; New Technique Could Determine Accurate Population Of Big Cat. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2002/07/020729074948.htm
Wildlife Conservation Society. "First Ever Census Of Jaguars Completed; New Technique Could Determine Accurate Population Of Big Cat." ScienceDaily. www.sciencedaily.com/releases/2002/07/020729074948.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

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
Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 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