• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Avian research >Effect of sex, temperature, time and flock size on the diving behavior of the wintering Scaly-sided Merganser (Mergus squamatus)
【24h】

Effect of sex, temperature, time and flock size on the diving behavior of the wintering Scaly-sided Merganser (Mergus squamatus)

机译：性别，温度，时间和群大小对越冬鳞片秋沙鸭（Mergus squamatus）潜水行为的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

BackgroundThe foraging and diving behavior of waterfowl are affected by a number of important factors. Hence, learning more about these major factors is of great concern in order to protect endangered species. In this study, we verified the effect of sex, temperature, time and flock size on the diving behavior of the Scaly-sided Merganser ( Mergus squamatus ). MethodsThe study was conducted by means of focal animal sampling in the Wuyuan section of the Poyang Lake watershed in Jiangxi Province, China from December 2015 to March 2016. We used one-way ANOVA and LSD tests to investigate the differences among these factors. Pearson correlations were used to test the relation between pause duration and the previous or subsequent dive duration. The relations between these factors and dive/pause duration are illustrated using Spearman correlations. ResultsMean dive duration and mean time on the pause of males were significantly higher than those of females. With an increase in temperature, dive duration significantly increased. Along with the passage of time of year and daytime, dive duration significantly increased, while dive duration decreased significantly with the increase in flock size. ConclusionsSex, temperature, time and flock size have an effect on the diving behavior of the wintering Scaly-sided Merganser. The difference of diving behavior between males and females is related to differences in body mass. The difference of diving behavior among various temperatures and time periods may be related to a low minimum rate of oxygen consumption, while the difference among various flock sizes may be caused by rising intraspecific competition.
机译：背景技术水禽的觅食和潜水行为受到许多重要因素的影响。因此，为了保护濒临灭绝的物种，对这些主要因素的更多了解非常重要。在这项研究中，我们验证了性别，体温，时间和鸡群大小对鳞背侧秋沙鸭（Mercus squamatus）潜水行为的影响。方法采用聚焦动物抽样方法，于2015年12月至2016年3月在江西省Po阳湖流域Wu源段进行动物抽样研究。我们采用单因素方差分析和最小二乘法检验这些因素之间的差异。皮尔逊相关系数用于测试停顿持续时间与之前或之后的潜水持续时间之间的关系。这些因素与潜水/暂停时间之间的关系用Spearman相关性说明。结果男性的平均潜水时间和平均停留时间明显高于女性。随着温度升高，潜水时间显着增加。随着白天和白天时间的推移，潜水时间显着增加，而潜水时间却随着群大小的增加而显着减少。结论性，温度，时间和鸡群大小对越冬的鳞状秋沙鸭的潜水行为有影响。男性和女性之间潜水行为的差异与体重的差异有关。各种温度和时间段之间潜水行为的差异可能与最低的最低耗氧率有关，而各种鸡群大小之间的差异可能是由于种内竞争加剧而引起的。

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