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Northern Alberta, Northeastern British Columbia and the Northwest Territories (Mackenzie District): Waterfowl Breeding Population and Habitat Survey, 2004

机译：北艾伯塔省，东北不列颠哥伦比亚省和西北地区（mackenzie区）：2004年水禽繁殖种群和栖息地调查

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Total waterfowl numbers were down from 2003, -18.7%. Dabblers were down, -24.4%$ divers were down, -15.0%$ and miscellaneous species were down also, -11.2%. Spring arrived very late in the eastern and elevated areas of the survey unit. Early waterfowl nesters were delayed from moving into those areas. There was also evidence of an waterfowl overflight from the more drier prairie areas.

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年度 2004
页码 p.1-20
总页数 20
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Maine; Waterfowl; Animal populations; Surveys; Breeding; Statistical data; Birds; Wildlife; Data collection; Tables(Data);

机译：缅因州;水禽;动物种群;调查;育种;统计数据;鸟类;野生动物;数据收集;表格（数据）;

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Northern Alberta, Northeastern British Columbia and the Northwest Territories (Mackenzie District): Waterfowl Breeding Population and Habitat Survey, 2004

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