Abstract
Destruction of tidal wetlands has led to a growing interest in the restoration and creation of new wetland habitat. However, while natural stands of vegetation have been successfully duplicated, less is understood about the establishment of faunal communities in created or restored tidal marshes. Infauna, which may form an important link between detrital production and commercially important finfish and decapods, have received limited attention in vegetated marsh habitats. We examined the infauna, changes in vegetation composition, and selected physical parameters in created marshes of different ages. Infauna were sampled using standard core sampling techniques. Vegetation composition and changes in relative abundance were observed using plot-point techniques. Vegetation plots indicated ongoing replacement ofSpartina alterniflora bySchoenoplectus robustus, a pattern supported by comparisons of vegetation at one of the sites to that reported in a previous study. Infauna exhibited significant differences between sites of different ages, with the intermediate-age site having intermediate densities for several taxa. These results suggest that both infauna and vegetation in created marshes undergo long-term change (ongoing after 10–20 yr), with both the plant and infaunal communities having qualitatively similar overall species composition to natural marsh areas.
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Posey, M.H., Alphin, T.D. & Powell, C.M. Plant and infaunal communities associated with a created marsh. Estuaries 20, 42–47 (1997). https://doi.org/10.2307/1352718
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DOI: https://doi.org/10.2307/1352718