• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Zoology >Temporal Change in Fur Color in MuseumSpecimens of Mammals: Reddish-Brown Species Get Redderwith Storage Time
【24h】

Temporal Change in Fur Color in MuseumSpecimens of Mammals: Reddish-Brown Species Get Redderwith Storage Time

机译：博物馆中毛皮颜色的时间变化哺乳动物的标本：红棕色物种随着保存时间的延长而变红

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Museum collections have great value for zoological research, but despite careful preservation, over time specimens can show subtle changes in color. We examined the effect of storage time on fur color of two reddish-brown species, golden mice {Ochrotomys nuttalli) and eastern chipmunk (Tamias striatus). Using image analysis, we obtained color data (hue, saturation, and density) on 91 golden mice and 49 chipmunks from Georgia, USA. Analyses that considered body size, gender, and collection year showedsignificant effects of year on fur color of golden mice (hue and saturation) and of agouti color of chipmunks. Older specimens tended to be redder in color than newer specimens, consistent with a prior study of red bats (Lasiurus borealis). Hair samplesshowed reddening of fine body hairs, but not in thicker guard hairs. There was no temporal change in black or white stripe color in chipmunks, indicating that this temporal effect would be limited to species with reddish-brown fur. This effect may be caused by breakdown of eumelanin pigments (which make dark colors) over time, leaving a greater proportion of pheomelanin pigments (which make red colors). These results show that storage time needs to be considered in research projects where fur color isof importance.
机译：博物馆的收藏品对动物学研究具有重要的价值，但是尽管经过了精心的保存，但随着时间的推移，标本可能会显示出细微的颜色变化。我们研究了贮藏时间对两种红棕色物种，金色小鼠（Ochrotomys nuttalli）和东部花栗鼠（Tamias striatus）的皮毛颜色的影响。使用图像分析，我们获得了来自美国佐治亚州的91只金鼠和49只花栗鼠的颜色数据（色相，饱和度和密度）。考虑了体型，性别和采集年份的分析表明，年份对金鼠的毛皮颜色（色调和饱和度）和花栗鼠的刺豚鼠颜色有显着影响。较早的标本比新的标本趋于变红，这与先前对红色蝙蝠的研究一致。头发样本显示出细小的身体毛发变红，但在较厚的后卫毛发中则没有。花栗鼠的黑色或白色条纹颜色没有暂时的变化，表明这种暂时的影响将仅限于具有红棕色毛皮的物种。这种效果可能是由于随着时间的推移，Eumelanin颜料（产生深色）的分解所致，留下了更大比例的pheomelanin颜料（产生红色）。这些结果表明，在毛皮颜色很重要的研究项目中需要考虑存储时间。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号