The importance of bare marine sedimentary habitats for maintaining high polychaete diversity and the implications for the design of marine protected areas
Barrio Frojan, Christopher R.S., Kendall, Mike A., Paterson, Gordon L.J., Hawkins, Lawrence E., Nimsantijaroen, Sompoch and Aryuthaka, Chittima (2009) The importance of bare marine sedimentary habitats for maintaining high polychaete diversity and the implications for the design of marine protected areas. Aquatic Conservation: Marine and Freshwater Ecosystems, 19, (7), 748 -757. (doi:10.1002/aqc.1031).
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1. Bare intertidal sedimentary habitats have received relatively little attention compared with their neighbouring vegetated habitats. An ecological comparison of benthic faunal assemblages inhabiting tropical intertidal seagrass
beds and bare sediments has been made to assess the faunal similarity between the two habitats in south-east Asia.
2. The poorly developed taxonomy of most invertebrate taxa in the region precluded the full identification of
many faunal groups. Only the polychaetes — which accounted for 76% of all the macrofaunal organisms
collected — were identified to the lowest possible taxonomic level, yielding 177 nominal species belonging to 35
families. Ecological analyses suggested that although each habitat had a distinct polychaete assemblage, there
were few differences between habitats based on a range of calculated assemblage diversity metrics.
3. Further analyses were applied to the data to test the performance of three strategies for optimizing the
selection of sites for inclusion in potential marine protected areas. Strategies were based either on the total
number of species, the number of rare or endemic species, or on the level of species richness (used as a surrogate
for community structure).
4. All three strategies consistently captured above average numbers of species at most levels of conservation
intensity. The merits of each strategy are considered in turn.
|Keywords:||tropical intertidal habitat; polychaete diversity; conservation; seagrass; south-east Asia|
|Subjects:||Q Science > QH Natural history > QH301 Biology|
|Divisions:||University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
|Date Deposited:||30 Nov 2009|
|Last Modified:||26 Mar 2012 06:21|
|Contributors:||Barrio Frojan, Christopher R.S. (Author)
Kendall, Mike A. (Author)
Paterson, Gordon L.J. (Author)
Hawkins, Lawrence E. (Author)
Nimsantijaroen, Sompoch (Author)
Aryuthaka, Chittima (Author)
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