Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00265-015-1908-y |
Effects of carotenoid supplementation and oxidative challenges on physiological parameters and carotenoid-based coloration in an urbanization context | |
Giraudeau, Mathieu1; Chavez, Afton1; Toomey, Matthew B.1,2; McGraw, Kevin J.1 | |
通讯作者 | Giraudeau, Mathieu |
来源期刊 | BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
![]() |
ISSN | 0340-5443 |
EISSN | 1432-0762 |
出版年 | 2015 |
卷号 | 69期号:6页码:957-970 |
英文摘要 | Worldwide urbanization continues to present new selection pressures on organisms. Carotenoid pigmentation of animals provides an ideal study system for identifying the source and significance of urban impacts because it is an environmentally derived trait and carotenoid molecules have widespread physiological, phenotypic, and fitness functions. Prior work indicates that in some bird species, urban individuals display less colorful carotenoid ornaments than rural birds. However, few studies have experimentally identified the causal factors that drive such a pattern of reduced "sexiness in the city". We performed two common-garden experiments with house finches, in which we manipulated carotenoid access and exposure to oxidative stress to understand how urban and desert birds respond to these drivers of carotenoid utilization. Urban finches were less colorful than desert birds at capture, but we found no differences between urban and desert finches in how carotenoid provisioning or oxidative stress affected plumage coloration. The only notable site differences in our experiments were that (a) the oxidative challenge caused a larger mass loss in urban compared to desert birds (experiment 1), (b) urban birds circulated higher levels of carotenoids than desert birds after receiving the same diet for 4 months (experiment 2), suggesting that, compared to desert birds, urban finches can better assimilate carotenoids from food or do not deplete as many carotenoids for use in free-radical scavenging. Overall, our results fail to reveal key carotenoid-specific physiological differences in urban and desert finches, and instead implicate other ecophysiological factors that drive urban/desert differences in carotenoid ornamentation. |
英文关键词 | Urbanization Carotenoids House finch Oxidative stress Plumage coloration |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000354227000010 |
WOS关键词 | PLUMAGE COLORATION ; HOUSE FINCH ; GREAT TITS ; SEXUAL ATTRACTIVENESS ; DIETARY CAROTENOIDS ; PLASMA CAROTENOIDS ; IMMUNE ACTIVATION ; HEALTH STATE ; PARUS-MAJOR ; MATE CHOICE |
WOS类目 | Behavioral Sciences ; Ecology ; Zoology |
WOS研究方向 | Behavioral Sciences ; Environmental Sciences & Ecology ; Zoology |
来源机构 | Arizona State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/186174 |
作者单位 | 1.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA; 2.Washington Univ, Sch Med, Dept Pathol & Immunol, St Louis, MO 63110 USA |
推荐引用方式 GB/T 7714 | Giraudeau, Mathieu,Chavez, Afton,Toomey, Matthew B.,et al. Effects of carotenoid supplementation and oxidative challenges on physiological parameters and carotenoid-based coloration in an urbanization context[J]. Arizona State University,2015,69(6):957-970. |
APA | Giraudeau, Mathieu,Chavez, Afton,Toomey, Matthew B.,&McGraw, Kevin J..(2015).Effects of carotenoid supplementation and oxidative challenges on physiological parameters and carotenoid-based coloration in an urbanization context.BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY,69(6),957-970. |
MLA | Giraudeau, Mathieu,et al."Effects of carotenoid supplementation and oxidative challenges on physiological parameters and carotenoid-based coloration in an urbanization context".BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY 69.6(2015):957-970. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。