HOME >> BIOLOGY >> NEWS
Prey not hard-wired to fear predators

(JUNE 20, 2007) -- Are Asian elk hard-wired to fear the Siberian tigers who stalk them" When wolves disappear from the forest, are moose still afraid of them?

No, according to a study by Wildlife Conservation Society scientist Dr. Joel Berger, who says that several large prey species, including moose, caribou and elk, only fear predators they regularly encounter. If you take away wolves, you take away fear. That is a critical piece of knowledge as biologists and public agencies increase efforts to re-introduce large carnivores to places where they have been exterminated. Bergers study is published in the latest issue of the journal Conservation Biology.

The goal of re-introduction isnt simply to save a species; it is to restore the natural functions of wild places. When the predator-prey relationship comes back into balance, impacts ripple through the system. For example, when wolves returned to the Yellowstone region, they caused a cascade of events including a change in elk distribution, more wariness in moose, and a change in coyote densities. By contrast , where wolves and grizzly bears were lost, migratory birds including warblers and hummingbirds were less abundant because moose over-browsed vegetation used by these migrants. It is not just changes in climate or disease may alter our big remote wild landscapes, but so do the actions of conservationists and public agencies by restoring ecosystems to bring native carnivores back to where they once thrived. said Dr. Berger.

Bergers study, which looked at 19 areas including the Russian Far East, Greenland, Canada, and the U.S., demonstrated that caribou, elk, and moose are all affected by both the loss and return of their predators in ways that are important for conservation and ecosystem integrity.

These findings come at a time when, after more than $23 million was spent to re-establish wolves in the northern Rocky Mountains, the animals are to be down-listed from federal
'"/>

Contact: Stephen Sautner
ssautner@wcs.org
718-220-3682
Wildlife Conservation Society
20-Jun-2007


Page: 1 2

Related biology news :

1. Animal brains hard-wired to recognize predators foot movements, Queens study suggests
2. How taste response is hard-wired into the brain
3. Surprisingly complex behaviors appear to be hard-wired in the primate brain
4. Marine phytoplankton changes form to protect itself from different predators
5. Alien predators are more dangerous than native predators
6. Wheat can fatally starve insect predators
7. Pendulums, predators and prey: The ecology of coupled oscillations
8. Pressured by predators, lizards see rapid shift in natural selection
9. USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
10. Time of day tempers tadpoles response to predators
11. Sea slug mixes chemical defense before firing at predators

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/18/2017)... Minn. , Jan. 18, 2017 ... technology company that supports the entire spectrum of ... has been another record-breaking year for the organization ... market interest in MedNet,s eClinical products and services. ... the tremendous marketplace success of iMedNet ...
(Date:1/12/2017)... 2017  Trovagene, Inc. (NASDAQ: TROV ), ... announced that it has signed agreements with seven strategic ... Middle East for commercialization of ... first wave of international distribution agreements for Trovagene,s CLIA ... The initial partners will introduce Trovagene,s liquid ...
(Date:1/12/2017)... and PUNE, India , January 12, 2017 ... Opportunities and Forecasts, 2015 - 2022," projects that the global biometric technology market is ... 19.4% from 2016 to 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... ... January 23, 2017 , ... Oklahoma City based Sigma Blood Systems has established ... PERFEQTA software and legacy product QC Manager 2.0. , Sigma Blood Systems CEO, ... and thrilled that they have decided to implement PERFEQTA and QC Manager 2.0, with ...
(Date:1/24/2017)... , January 23, 2017 According ... Market by Type (Genetic, Cell-based (CD34, PBMC, BLT)), Application ... User (Pharmaceutical & Biotech Companies, CRO) - Global Forecast ... global Humanized Mouse Model Market for the forecast period ... reach USD 116.0 Million by 2021 from USD 73.3 ...
(Date:1/24/2017)... Jan. 23, 2017  Today, the Fisher Center for ... funded an important study that could lead to the ... of Alzheimer,s disease. This groundbreaking research was conducted by ... by Nobel Laureate Dr. Paul Greengard , in ... Fisher Center scientists have linked a mutation ...
(Date:1/23/2017)... Fl (PRWEB) , ... January 23, 2017 , ... ... venture-backed teleradiology and telemedicine company announces significant growth last year adding 65 new ... Veterans Authority and US Army medical centers as well as one of US ...
Breaking Biology Technology:
Cached News: