摘要
2011年1月在滇池海埂大堤捕捉131只取食人工投食的红嘴鸥,对其体重、全长等6项量衡度进行测量,并与20世纪60—80年代采自云南各地的红嘴鸥标本相应值进行比较,结果表明,两者成鸟体重、尾长无显著差异,而全长、翅长、跗蹠长和喙长差异极显著;人工投食的红嘴鸥全长和喙长极显著小于自然觅食的个体,而翅长和跗蹠长则显著大于自然觅食的个体;亚成鸟体重、翅长和跗蹠长两者无显著差异,人工投食的亚成鸟全长、尾长和喙长则极显著小于自然觅食的亚成鸟相应量衡度。
The weight, length and other four indexes of 131 artificially fed black-headed seagulls that were cap- tured on Haigeng Dam of the Dianchi Lake in January of 2011 were measured, and the data were respectively com- pared to those measured from the specimen collected from different parts of Yunnan Province during the 1 960 s and 1 980 s. The results showed that there were no significant differences in the adult bird＇s weight and tail length be- tween the naturally and artificially fed birds （P 〉 0. 05 ）, but there were extremely significant differences in the total length, wing length, instep length and the bill length of the two groups （P 〈 0. 01 ）. The total length and the bill length of the artificially fed black-headed seagull were extremely shorter than those of the naturally fed birds （P 〈 0. 01 ）. Whereas the wing length and the instep length of the artificially fed black-headed seagull were extremely lon- ger than those of the naturally fed birds. There were no significant differences in the weight, wing length and the instep length of the sub-adult birds of the two groups. However, the total length, tail length and the bill length of the artificially fed sub-adult seagulls were significantly shorter than those measured from the naturally fed ones.
出处
《西南林业大学学报（自然科学）》
CAS
2012年第3期104-106,共3页
Journal of Southwest Forestry University：Natural Sciences
基金
云南省森林灾害预警与控制重点实验室资助
西南林业大学动物学重点学科(XKX200903)资助
关键词
红嘴鸥
越冬期
人工投食
自然觅食
形态比较
black-headed gull
wintering period
artificial feeding
natural feeding
morphological comparison
