Featured Research

from universities, journals, and other organizations

Non-lethal Methods Can Resolve Conflicts Between Bears And Humans

Date:
December 16, 2003
Source:
Wildlife Conservation Society
Summary:
How do you keep a black bear from taking out the backyard bird feeder or going through your garbage? Play the sound of a helicopter, or flash a strobe light, say scientists from the New York-based Wildlife Conservation Society (WCS) and other organizations.

How do you keep a black bear from taking out the backyard bird feeder or going through your garbage? Play the sound of a helicopter, or flash a strobe light, say scientists from the New York-based Wildlife Conservation Society (WCS) and other organizations, who tested several non-lethal techniques to minimize conflicts between humans and large carnivores.

The scientists, who published their results in the December edition of Conservation Biology, compared the effectiveness of non-lethal methods for keeping large carnivores away from human structures, livestock, and other potential conflict areas. They found that motion-activated lights and sounds can keep both large- and medium-sized predators away from food sources, thus preventing a clash that can result in large carnivores being destroyed.

"In wealthy countries such as the United States, non-lethal repellents such as motion-activated guards can help resolve human-carnivore conflicts without destroying animals that perform important ecological roles" said Dr. Adrian Treves, a conservationist with WCS's Living Landscapes program and co-author of the study. "We need better methods and we need to consider human behavior as part of the problem--limiting the accessibility of food sources whether its garbage, crops or livestock."

In the study, conservationists tested the non-lethal repellent methods in six wolf territories in Wisconsin (which also contained black bears and other predators). The study found that motion-activated devices, with strobe lights and 30 random noises, were effective for keeping predators away from deer carcasses at the study sites, including bald eagles, wolves, vultures--and black bears. Fladry--a wolf management method from Eastern Europe using flags on fences--may be moderately effective in repelling wolves, but not bears.

"High-technology devices are much more expensive, complicated, and limited in effectiveness than a single bullet from a high-powered rifle, but they also allow a predator to live--surely the goal of conservation," states Dr. John Shivik, of Wildlife Services' National Wildlife Research Center and Utah State University, the lead author of the study. Other authors included Peggy Callahan of the Wildlife Science Center.

In a comparison with methods on captive wolves, motion activated guards rated higher than electronic training collars--similar to the "invisible fence" collars used to keep domesticated dogs on home properties. Some wolves simply tolerated the mild electronic shocks and continued to feed

"There is no single solution for every situation but individuals and communities should be given a variety of options so they can tailor their responses to their needs and tolerances," Treves said. "Non-lethal deterrents can now be offered as one option."


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. "Non-lethal Methods Can Resolve Conflicts Between Bears And Humans." ScienceDaily. ScienceDaily, 16 December 2003. <www.sciencedaily.com/releases/2003/12/031216074737.htm>.
Wildlife Conservation Society. (2003, December 16). Non-lethal Methods Can Resolve Conflicts Between Bears And Humans. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2003/12/031216074737.htm
Wildlife Conservation Society. "Non-lethal Methods Can Resolve Conflicts Between Bears And Humans." ScienceDaily. www.sciencedaily.com/releases/2003/12/031216074737.htm (accessed August 20, 2014).

Share This




More Plants & Animals News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Disquieting Times for Malaysia's 'fish Listeners'

Disquieting Times for Malaysia's 'fish Listeners'

AFP (Aug. 19, 2014) Malaysia's last "fish listeners" -- practitioners of a dying local art of listening underwater to locate their quarry -- try to keep the ancient technique alive in the face of industrial trawling and the depletion of stocks. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com
USDA Cracks Down On Imports From Foreign Puppy Mills

USDA Cracks Down On Imports From Foreign Puppy Mills

Newsy (Aug. 18, 2014) New USDA measures to regulate dog imports aim to crack down on buying dogs from overseas puppy mills. Video provided by Newsy
Powered by NewsLook.com
Bone Marrow Drug Regrows Hair In Some Alopecia Patients

Bone Marrow Drug Regrows Hair In Some Alopecia Patients

Newsy (Aug. 18, 2014) Researchers performed an experiment using an FDA-approved drug known as ruxolitinib. They found it to be successful in the majority of patients. 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:
from the past week

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