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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
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Your Position :Home->Past Journals Catalog->2014 Vol.33 No.6

Preference of Marsh Grassbirds for Calamagrostis epigejos in Reed Marsh in the Yalu River Estuary
Author of the article:GAO Ming*
Author's Workplace:(Eastern Liaoning University, Dandong, Liaoning Province 118003, China)
Key Words:preference for Calamagrostis epigejos; preference transfer; nest height; sentinel species; marsh grassbirds (Megalurus pryeri sinensis)
Abstract:In order to understand the habitat preference of marsh grassbirds (Megalurus pryeri sinensis) for Calamagrostis epigejos, from 2006 to 2009, we obtained 53 nest samples of marsh grassbirds through point quadrat sampling method, and found that main herbaceous plant was C. epigejos in the Yalu River estuary. Dense C. epigejos (628 blades/m2) with sparse reeds (20 reeds/1.5 m2) and high nest (23 cm) was the typical micro-habitat of marsh grassbirds. Significant positive correlation was found between nest height and numbers of total C. epigejos and green C. epigejos. However, no significant correlation was observed in partial analysis by regulating water level, vegetation cover, and numbers of dry reed through bivariate analysis. Positive correlation was also found between nest height and height of C. epigejos and Juncus gracillimus. Further analysis showed that negative correlation was observed between the numbers of live C. epigejos and live reed and other live herbaceous plants. Numbers of green C. epigejos in nests with nest entrance was similar to that in nests with no entrance. In conclusion, the reed C. epigejos community should be preserved and the manager should pay more attention to the balance between reed and C. epigejos.
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