DOI: 10.1111/ele.13850
论文题名: Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments
作者: Stuart-Fox D. ; Rankin K.J. ; Lutz A. ; Elliott A. ; Hugall A.F. ; McLean C.A. ; Medina I.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: animal colouration
; comparative analysis
; habitat productivity
; liquid chromatography-mass spectrometry
; signalling
英文摘要: Carotenoids are important pigments producing integument colouration; however, their dietary availability may be limited in some environments. Many species produce yellow to red hues using a combination of carotenoids and self-synthesised pteridine pigments. A compelling hypothesis is that pteridines replace carotenoids in environments where carotenoid availability is limited. To test this hypothesis, we quantified concentrations of five carotenoid and six pteridine pigments in multiple skin colours and individuals from 27 species of agamid lizards. We show that environmental gradients predict the ratio of carotenoids to pteridines; carotenoid concentrations are lower and pteridine concentrations higher in arid environments with low vegetation productivity. Both carotenoid and pteridine pigments were present in all species, but only pteridine concentrations explained colour variation among species and there were no correlations between carotenoid and pteridine pigments with a similar hue. These results suggest that in arid environments, where carotenoids are likely limited, species may compensate by synthesising more pteridines but do not necessarily replace carotenoids with pteridines of similar hue. © 2021 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166938
Appears in Collections: 气候变化与战略
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作者单位: School of BioSciences, The University of Melbourne, Parkville, VIC, Australia; Metabolomics Australia, The University of Melbourne, Parkville, VIC, Australia; Sciences Department, Museums Victoria, Carlton Gardens, Melbourne, VIC, Australia; Department of Microbiology & Immunology, The University of Melbourne, Parkville, VIC 3010, Australia
Recommended Citation:
Stuart-Fox D.,Rankin K.J.,Lutz A.,et al. Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments[J]. Ecology Letters,2021-01-01