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Vol. 51 No. 6, 2012
The
Community Structure of Molluscs in Three Different Wetland Types in the
Qi’ao-Dan’gan Island Mangrove Nature Reserve at Qi’ao Island, Pearl
River Estuary, China
Ya-Fang Li1, Run-Lin Xu1,*, and Chang-Fu Wang2
1School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
2Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
Ya-Fang Li, Run-Lin Xu, and Chang-Fu Wang (2012)
The benthic mollusc communities in 3 different types of wetlands
(mangrove arbor, emergent plants, and seaweed) at Qi’ao-Dan’gan I. were
studied from Jan. 2008 to Nov. 2010. During this period, 16
species consisting of 11 species of gastropods and 5 species of
bivalves were found. All of the bivalve species were found among
the seaweeds. Compared to other mangrove habitats, the species
richness of molluscs was lower while the abundance (68 individuals
(ind.)/m2) was higher. The community composition significantly differed among these wetland types (p
< 0.05), and a significant serial shift occurred during the 3rd year
of sampling in the seaweed wetland. At the mangrove arbor and
seaweed wetlands, the mollusc community compositions exhibited no
significant differences in different seasons or different years.
In this article, relationships between the distribution of molluscs and
environmental parameters are discussed as well. It is suggested
that molluscs may possess strong adaptability in these 3
wetlands. This study provides useful baseline information on
conservation and sustainable use of the wetlands.
Key words: Molluscs, Biodiversity, Wetland type, Environmental parameter.
*Correspondence: Tel: 86-20-84113185. E-mail:xurunlin_1960@yahoo.com
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