Navigation Links
Old sheep raising the baaa
Date:9/5/2008

Populations of wild animals face the challenge of surviving in a changing climate. Researchers at Imperial College London and Universit Claude Bernard Lyon have shown how a sheep population on a remote island off the west coast of Scotland responds to two consequences of climate change: altered food availability and the unpredictability of winter storms. Dr. Thomas Ezard, lead author of the study, revealed, "When times are good and food is plentiful, lambs contribute almost twice as much to changes in population size than when times are hard. On the flip side, the oldest sheep contribute most to population growth when conditions are harsh." The work, published in the September issue of The American Naturalist, suggests that the dynamics of populations are influenced not only by the weather but also by the ability of individuals to respond to it.

New mathematical breakthroughs have made it possible to show how environmental change affects populations, like these sheep. The key is appreciating (1) how weather affects individual sheep and (2) how the weather changes from one year to the next. If consecutive years have similar weather, the dynamics of the population will be very different than if conditions are unrelated from one year to the next. Professor Tim Coulson concluded, "A thorough understanding of the likely effects of climate change on the ecology of wild populations requires linking populations to their environment. This demands application of innovative mathematical methods, as used here."


'/>"/>

Contact: Patricia Morse
pmorse@press.uchicago.edu
773-702-0446
University of Chicago Press Journals
Source:Eurekalert  

Page: 1

Related biology news :

1. Diet prior to pregnancy determines sheeps gender
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Old sheep raising the baaa
(Date:10/4/2017)... 2017  GCE Solutions, a global clinical research organization (CRO), announces ... solution on October 4, 2017. Shadow is designed to assist medical ... policy 0070 of the European Medicines Agency (EMA) in meeting the ... ... ...
(Date:6/30/2017)... ARLINGTON, Va. , June 30, 2017 /PRNewswire-USNewswire/ ... a leading developer and supplier of face and ... the ATA Featured Product provider program. ... created an innovative way to monitor a driver,s ... benefit greatly from being able to detect fatigue ...
(Date:5/16/2017)... N.J. , May 16, 2017  Veratad Technologies, ... provider of online age and identity verification solutions, announced ... K(NO)W Identity Conference 2017, May 15 thru May 17, ... Regan Building and International Trade Center. ... the globe and in today,s quickly evolving digital world, ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... (PRWEB) , ... October 12, ... ... ) has launched Rosalind™, the first-ever genomics analysis platform specifically designed for ... complexity. Named in honor of pioneering researcher Rosalind Franklin, who made a ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ComplianceOnline’s Medical ... place on 7th and 8th June 2018 in San Francisco, CA. The Summit brings ... well as several distinguished CEOs, board directors and government officials from around the world ...
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the ... million people each year. Especially those living in larger cities are affected by air ... one of the most pollution-affected countries globally - decided to take action. , “I ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give ... Liposomal Nanoparticle), a technology developed in collaboration with Children’s Hospital Los Angeles ...
Breaking Biology Technology: