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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
Address:College of Life Sciences, Sichuan University, No.29, Wangjiang Road, Chengdu, Sichuan Province, 610064, China
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Your Position :Home->Past Journals Catalog->2013 Vol.32 No.4

Diurnal Time Budget and Behavior Rhythm of Wintering Tundra Swan After Higher Water Level in Poyang Lake
Author of the article:LI Yankuo1, HUANG Jiangang1, LI Fengshan2, OUYANG Yulin1
Author's Workplace:(1. The College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China; 2. International Crane Foundation, Wisconsin 53916, USA)
Key Words:tundra swan; Poyang Lake; time budget; activity rhythm
Abstract:

During January and February of 2011, the wintering behaviors and daily cycle of tundra swan were observed by focus sampling in the Kangshanhu Nature Reserve in Poyang Lake. It is suggested that the tundra swan is a typically swimming bird and the majority of its wintering daily time was spent in the water. However, our results showed that, in the winter of 2010, the tundra swan mainly (93.2%) inhabited in lake meadow. Long-time food shortage caused by higher water level in Poyang Lake might be the key factor which forced the tundra swan to spend most of daily time on the land. Tundra swan spent 52.6% of their time on feeding. Other behaviors such vigilance, locomotion, resting and grooming were 18.2%, 10.6%, 10.0% and 8.6%, respectively. And the duration of these behaviors were significant different. The duration of resting behavior was the longest, averagely 48.4 s±2.9 s, while the duration of vigilance was the shortest, averagely 9.5 s±0.6 s. Significant difference was observed between the time allocation pattern of tundra swan in water habitat and meadow habitat. In the water habitat, tundra swan spent most time on resting; however, in meadow habitat, tundra swan spent most time on feeding. The behavior rhythm of grooming was negatively correlated with resting behavior. No significant correlations were observed among other behaviors.

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