The Dynamics of Phenotypic Change and the Shrinking Sheep of St. Kilda Export

@article{citeulike:5045124, abstract = {Environmental change, including climate change, can cause rapid phenotypic change via both ecological and evolutionary processes. Because ecological and evolutionary dynamics are intimately linked, a major challenge is to identify their relative roles. We exactly decomposed the change in mean body weight in a free-living population of Soay sheep into all the processes that contribute to change. Ecological processes contribute most, with selection--the underpinning of adaptive evolution--explaining little of the observed phenotypic trend. Our results enable us to explain why selection has so little effect even though weight is heritable, and why environmental change has caused a decline in the body size of Soay sheep. 10.1126/science.1173668}, author = {Ozgul, Arpat and Tuljapurkar, Shripad and Benton, Tim G. and Pemberton, Josephine M. and Clutton-Brock, Tim H. and Coulson, Tim}, citeulike-article-id = {5045124}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1173668}, citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/325/5939/464}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/19574350}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=19574350}, day = {24}, doi = {10.1126/science.1173668}, journal = {Science}, keywords = {climate, climate-change, evolution, herbivores-climate, sheep, soay-sheep}, month = {July}, number = {5939}, pages = {464--467}, posted-at = {2009-07-03 13:14:53}, priority = {2}, title = {The Dynamics of Phenotypic Change and the Shrinking Sheep of St. Kilda}, url = {http://dx.doi.org/10.1126/science.1173668}, volume = {325}, year = {2009} }

TY - JOUR ID - citeulike:5045124 L3 - citeulike-article-id:5045124 N2 - Environmental change, including climate change, can cause rapid phenotypic change via both ecological and evolutionary processes. Because ecological and evolutionary dynamics are intimately linked, a major challenge is to identify their relative roles. We exactly decomposed the change in mean body weight in a free-living population of Soay sheep into all the processes that contribute to change. Ecological processes contribute most, with selection--the underpinning of adaptive evolution--explaining little of the observed phenotypic trend. Our results enable us to explain why selection has so little effect even though weight is heritable, and why environmental change has caused a decline in the body size of Soay sheep. 10.1126/science.1173668 IS - 5939 JF - Science EP - 467 TI - The Dynamics of Phenotypic Change and the Shrinking Sheep of St. Kilda VL - 325 SP - 464 KW - climate KW - climate-change KW - evolution KW - herbivores-climate KW - sheep KW - soay-sheep AU - Ozgul, Arpat AU - Tuljapurkar, Shripad AU - Benton, Tim AU - Pemberton, Josephine AU - Clutton-Brock, Tim AU - Coulson, Tim PY - 2009/07/24/ UR - http://dx.doi.org/10.1126/science.1173668 ER -