...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Wilson Bulletin >CORRELATES OF FALL-SPRING MASS DYNAMICS OF NORTHERN BOBWHITES
【24h】

CORRELATES OF FALL-SPRING MASS DYNAMICS OF NORTHERN BOBWHITES

机译：北方短毛猫秋春季动力学的相关性

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

We examined the relationship of trends in fall—spring mass of 330 Northern Bobwhites (Col-inux virginianus) with photoperiod, air temperature, energy requirements, and supplemental feeding in the Texas Panhandle during 2000-2003. Mass of bobwhites increased from September to December, at which point it peaked and then decreased through March. Mean monthly mass was negatively correlated with photoperiod (r = -0,89) and temperature (r =-0.79) and positively correlated with energy required (r = 0.79; estimated using air temperature). From September to March, bobwhites occupying areas where supplemental feed was provided (n = 246) were greater in mass (x = 193.4 g, 95% CL = 191.6-195.1) than bobwhites in areas without supplemental feed (x = 186.5 g, 95% CL = 184.0-189.0, n = 84), but mean monthly mass was different only during November (x = 197,8 g, 95% CL = 195.3-200.3 for food-supplemented; x = 188,0 g, 95% CL = 185.0-191.0 for unsupplemented). Abiotic factors, such as photoperiod and temperature, are confounding factors when attempting to explain fall and winter trends of bobwhite mass. Temporal changes in activities (daily foraging, nocturnal roosting) and their energetic costs (e.g., thermoregulation) also complicate issues of trends in mass.
机译：我们研究了秋季趋势的变化趋势— 2000-2003年德克萨斯州Panhandle的330北部Bobwhites（Col-inux virginianus）的春季质量与光周期，气温，能量需求和补充喂养有关。从9月到12月，短吻鳄的数量增加，在此期间达到顶峰，然后到3月减少。平均每月质量与光周期（r = -0.89）和温度（r = -0.79）呈负相关，与所需能量（r = 0.79；使用空气温度估算）呈正相关。从9月到3月，在没有补充饲料的地区（x = 186.5 g，95），提供补充饲料（n = 246）的bobwhites的质量（x = 193.4 g，95％CL = 191.6-195.1）更大。 ％CL = 184.0-189.0，n = 84），但平均每月质量仅在11月期间有所不同（x = 197,8 g，95％补充食品的CL = 195.3-200.3； x = 188,0 g，95％ CL = 185.0-191.0（未补充）。非生物因素，例如光周期和温度，是试图解释鲍勃白色块状秋冬季趋势时的混杂因素。活动的时间变化（日常觅食，夜间栖息）及其能量成本（例如体温调节）也使质量趋势问题复杂化。

著录项

  • 来源
    《The Wilson Bulletin》 |2004年第4期|p.324-329|共6页
  • 作者

    TIM L. HILLER; FRED S. GUTHERY;

  • 作者单位

    13 Natural Resources Bldg,, Dept. of Fisheries and Wildlife, Michigan State Univ., East Lansing, MI 48824-1222, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 鸟纲;
  • 关键词

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