...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ostrich >Wing moult and sexual dimorphism in the Lesser Honeyguide Indicator minor in the Eastern Cape, South Africa
【24h】

Wing moult and sexual dimorphism in the Lesser Honeyguide Indicator minor in the Eastern Cape, South Africa

机译：南非东开普的Lowerer Honeyguide Indicator未成年人的翅膀蜕变和性二态性

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

Based on ringing data from the Western Cape, Underhill et al. (1995) demonstrated that there was a bimodal distribution of wing-length measurements in the Lesser Honeyguide Indicator minor, and they described the timing of wing-moult in this region. Hanmer (1997) reported similar results for Lesser Honeyguides from Mozambique and Malawi. This species remains poorly studied, and we have examined size dimorphism and wing moult for a sample of birds from the Eastern Cape region: 44 museum specimens from the Albany Museum (Grahamstown), East London Museum and the Ditsong Museum (formerly Transvaal Museum, Pretoria), together with ringing data for 94 birds. Wing-length of both museum specimens and ringed birds was measured in the standard manner (maximum chord); weight to the nearest 0.5 g was recorded with a Pesola spring balance. Each bird was checked for wing moult, which was recorded as 0 for an old feather and 5 for a fully grown new feather (de Beer et al. 2001). These moult scores were converted to percentage feather mass grown using a primary feather mass index, Passer9 (Bonnevie 2010a), for analysis using the model of Underhill and Zucchini (1988), as implemented in R (Erni et al. in press), with the data subsampled to prevent non-moulting birds from biasing the estimates (Bonnevie 2010b).
机译：根据来自西开普省的响铃数据，Underhill等人。 （１９９５）证明了在小蜂蜜导游指示器未成年人中，翼长测量值呈双峰分布，他们描述了该区域的翼换羽时间。 Hanmer（1997）报道了莫桑比克和马拉维的小蜜指南的类似结果。该物种的研究还很差，我们已经检查了东开普省地区鸟类的体形大小和翅膀蜕变：来自奥尔巴尼博物馆（Grahamstown），东伦敦博物馆和Ditsong博物馆（以前为Transvaal博物馆，比勒陀利亚）的44个博物馆标本），以及94只鸟的响铃数据。以标准方式（最大弦）测量博物馆标本和带环鸟的翅膀长度。用Pesola弹簧秤记录重量，精确到0.5 g。检查每只鸟的翅膀换羽，记录为旧羽毛为0，新羽完全生长为5（de Beer et al。2001）。将这些换羽分数转换为使用主要羽毛质量指数Passer9（Bonnevie 2010a）增长的羽毛质量百分比，以使用Underhill和Zucchini（1988）模型进行分析，该模型在R（Erni等，印刷中）中实现，为了避免非成年鸟类对估计值的偏见，对数据进行了二次抽样（Bonnevie 2010b）。

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