RETRACTED: Physiological variation in Amethyst Sunbirds (Chalcomitra amethystina) over an altitudinal gradient: A seasonal comparison

This article has been retracted at the request of the Editors-in-Chief. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Reason: This article contains significant parts from the following two already published papers: Lindsay, C.V., Downs, C.T. and Brown, M., Physiological variation in amethyst sunbirds (Chalcomitra amethystina) over an altitudinal gradient in winter. J. Exp. Biol., 212 (2009) 483–493; Lindsay, C.V., Downs, C.T. and Brown, M., Physiological variation in amethyst sunbirds (Chalcomitra amethystina) over an altitudinal gradient in summer. J. Therm. Biol., 34 (2009) 190–199.One of the conditions of submission of a paper for publication is that authors declare explicitly that the paper is not under consideration for publication elsewhere. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and we apologize to readers of the journal that this was not detected during the submission process.