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Wader use of an eco-engineered drainage channel in Hong Kong

Info

Pages
114 – 121

Published
1 September 16

Authors
David J. Stanton

DOI
10.18194/ws.00038

Correspondence
David J. Stanton
djs@aechk.hk
AEC Ltd., 127 Commercial Centre, Palm Springs, Yuen Long, New Territories, Hong Kong

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In this study I present data on wader abundance and diversity over a five-year period following the construction of an eco-engineered flood relief channel in Hong Kong. The concrete channel has hollow cells in its bed which allow retention of a silt/mud substrate. Twenty wader species have been recorded in the channel and both wader diversity and abundance have shown an increasing trend over time. The channel offers foraging opportunities to waders, which can be particularly important during winter and migration periods. The cellular concrete appears to provide microhabitats in the channel bed and this seems to be preferable compared with a homogenous concrete lining with no ecological niches.