Featured Research

from universities, journals, and other organizations

Setting time limits for hunting and fishing may help maintain wildlife populations

Date:
May 14, 2010
Source:
University of Minnesota
Summary:
Hunting and fishing quotas limit the number of game animals or fish an individual may take based on harvests from the previous year. But according to a new study, this strategy may jeopardize wildlife populations.

People fishing. Setting time limits for hunting and fishing, rather than quotas, may help maintain wildlife populations.
Credit: iStockphoto

Hunting and fishing quotas limit the number of game animals or fish an individual may take based on harvests from the previous year. But according to a new study co-authored by University of Minnesota ecologist Craig Packer, this strategy may jeopardize wildlife populations.

The authors recommend that wildlife managers rethink policies for sustainable utilization. Setting limits on the number of days allowed for hunting and fishing rather than the number of trophies would be a more effective way to ensure continued supply and to prevent extinction.

Results of the study are published in the May 13 issue of Science.

"Quotas don't consider population fluctuations caused by disease outbreaks, harsh weather and other variables that affect animal abundance from year to year," Packer explains. "Hunters and fishermen can work harder to make their quotas when desirable species are scarce. The extra pressure can cause populations to collapse." Setting limits on the amount of time spent hunting could better protect fragile populations.

John Fryxell and Kevin McCann, from the University of Guelph in Ontario, Canada, along with colleagues in Norway and the United States, developed a model based on mass action assumptions about human behavior and current hunting and fishing regulations. They tested the model using data from three populations of deer and moose from Canada and Norway over a 20- year period. Packer's work on the impact of trophy hunting on lion populations in Africa and cougars in the United States, helped to inspire the current study.

The problem is exacerbated by the traditional practice of open access, Fryxell noted. Hunters and fishermen tend to choose spots based on word of mouth, which travels slowly. By the time they are well known, popular sites may already have shrinking populations and visitors may need to work harder and longer to reach quotas, which further endanger the species. Once populations are depleted, restoring them is a challenge.

"It can take decades for large animal populations to recover from collapses, as we know from our disastrous experience with cod stocks off the coast of Newfoundland, Fryxell said. "We need to make strategic long-term changes to make a difference."


Story Source:

The above story is based on materials provided by University of Minnesota. Note: Materials may be edited for content and length.


Journal Reference:

  1. John M. Fryxell, Craig Packer, Kevin McCann, Erling J. Solberg, and Bernt-Erik Sζther. Resource Management Cycles and the Sustainability of Harvested Wildlife Populations. Science, 14 May 2010 328: 903-906 DOI: 10.1126/science.1185802

Cite This Page:

University of Minnesota. "Setting time limits for hunting and fishing may help maintain wildlife populations." ScienceDaily. ScienceDaily, 14 May 2010. <www.sciencedaily.com/releases/2010/05/100513162748.htm>.
University of Minnesota. (2010, May 14). Setting time limits for hunting and fishing may help maintain wildlife populations. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2010/05/100513162748.htm
University of Minnesota. "Setting time limits for hunting and fishing may help maintain wildlife populations." ScienceDaily. www.sciencedaily.com/releases/2010/05/100513162748.htm (accessed July 28, 2014).

Share This




More Plants & Animals News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Sea Turtle Hatchlings Emerge from Nest

Raw: Sea Turtle Hatchlings Emerge from Nest

AP (July 27, 2014) — A live-streaming webcam catches loggerhead sea turtle hatchlings emerging from a nest in the Florida Keys. (July 27) Video provided by AP
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) — A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) — A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
The New York Times Backs Pot Legalization

The New York Times Backs Pot Legalization

Newsy (July 27, 2014) — The New York Times has officially endorsed the legalization of marijuana, but why now, and to what end? 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