Featured Research

from universities, journals, and other organizations

Gone But Not Forgotten: The Persistence Of Anti-predator Behavior

Date:
February 17, 2006
Source:
Blackwell Publishing Ltd.
Summary:
Many species find themselves isolated from predators with which they evolved. This can be natural, as on islands, or unnatural, as in zoos. In response to this isolation, many species lose the ability to respond appropriately to their predators. However, some species, despite many years of isolation, retain anti-predator behavior.

A review published in the recent issue of Ethology suggests that the presence of multiple predators slows the loss of anti-predator abilities in isolated populations.

Many species find themselves isolated from predators with which they evolved. This can be natural, as on islands, or unnatural, as in zoos. In response to this isolation, many species lose the ability to respond appropriately to their predators. However, some species, despite many years of isolation, retain anti-predator behavior.

UCLA professor, Dan Blumstein, reviewed the literature and suggests that the key factor responsible for persistence, despite the loss of some predators, is that anti-predator behavior does not evolve independently. Most species have more than a single predator and we should expect co-adapted suites of anti-predator behavior. Thus, the loss of a single predator should have a limited effect on overall anti-predator abilities as long as other predators remain.

Evidence in support of this 'multi-predator hypothesis' comes from studies of wallabies, which retained anti-predator behavior for thousands of years following isolation from some predators, but rapidly lost anti-predator behavior when isolated from all predators.

The multi-predator hypothesis has important implications for conservation biology: taking animals from a predator-free location and putting them back into a predator rich area is more likely to fail than taking animals from an area with a sub-set of historically-important predators.


Story Source:

The above story is based on materials provided by Blackwell Publishing Ltd.. Note: Materials may be edited for content and length.


Cite This Page:

Blackwell Publishing Ltd.. "Gone But Not Forgotten: The Persistence Of Anti-predator Behavior." ScienceDaily. ScienceDaily, 17 February 2006. <www.sciencedaily.com/releases/2006/02/060216233604.htm>.
Blackwell Publishing Ltd.. (2006, February 17). Gone But Not Forgotten: The Persistence Of Anti-predator Behavior. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2006/02/060216233604.htm
Blackwell Publishing Ltd.. "Gone But Not Forgotten: The Persistence Of Anti-predator Behavior." ScienceDaily. www.sciencedaily.com/releases/2006/02/060216233604.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

Possible Ebola Patient in Isolation at California Hospital

Possible Ebola Patient in Isolation at California Hospital

Reuters - US Online Video (Aug. 20, 2014) A patient who may have been exposed to the Ebola virus is in isolation at the Kaiser Permanente South Sacramento Medical Center. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
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

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